3.3kv-27kv air insulated switchgear - promelsa.com.pe

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GE Energy 3.3kV-27kV Air Insulated Switchgear Leading the future of electrification

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Page 1: 3.3kV-27kV Air Insulated Switchgear - Promelsa.com.pe

GE Energy

3.3kV-27kVAir Insulated SwitchgearLeading the future of electrification

Page 2: 3.3kV-27kV Air Insulated Switchgear - Promelsa.com.pe

3.3kV - 27kVAir Insulated SwitchgearLeading the future of electrification

Page 3: 3.3kV-27kV Air Insulated Switchgear - Promelsa.com.pe

GEGE is a diversified organization covering a myriad of market segments, including infrastructure,

finance and media. From energy, water, transportation and health to access to money and

information, GE serves customers in more than 100 countries and employs more than 300,000

people worldwide.

The company traces its beginnings from Thomas A. Edison, who established the Edison Electric Light

Company in 1878. In 1892, a merger of Edison General Electric Company and Thomson-Houston

Electric Company created the General Electric Company. GE is the only company listed in the Dow

Jones Industrial Index today that was also included in the original index in 1896.

Industrial SolutionsGE Industrial Solutions, a division of GE Energy, is a global leading provider in power distribution,

offering a wide range of services and products which include medium and low voltage power

distribution equipment and components, motor & control systems and service products that are

safe, reliable and offer high performance.

Honour

2007 World’s Best R&D Companies

2011 World’s Most Admired Companies

2011 Best Global Brand

2008 World’s Most Respected Companies

2010 World's Most Innovative Companies

2009 World’s Most Respected Companies

Page 4: 3.3kV-27kV Air Insulated Switchgear - Promelsa.com.pe

80

A

eco

More Than 80 Years of Interrupter Experience

World Class Quality

Universal Applications

Environment Consciousness

GE pioneered experimental vacuum interrupters in the 1920s. Refined it and introduced the world's first 15kV Vacuum circuit breaker in the 1960s. To date, this interrupter design has been the world leader in vacuum technology and has accumulated over 45 years of reliable field service.

Manufactured, assembled and tested all in the same sophisticated facility, SecoVac is the product of state of the art manufacturing processes assured by ISO 9001:2008 and ISO 14001 certification. Precision tooled parts, computer aided d e s i g n a n d a d v a n c e d p ro d u c t i o n techniques, as well as the protection of the 'E Coat' (cathodic electrocoating) paint process have resulted in a standard of excellence unmatched in the industry.

SecoGear is designed, assembled and tested to meet or exceed applicable IEC, GB and DL standards. It is suitable for applications in all major industries including T&D, Oil & Gas, Automotive, Processing plants, Iron and Steel mills, Mining, Commercial buildings, etc.It provides protection for all types of applications: coble, overhead lines, motors, capacitors, transformers, busbar sections, etc.

Selecting low environmental impact technologies has become increasingly important to engineers tasked with choosing equipment for an application. W i th commitment to env i ronment protection, the solid insulation of epoxy resin is used for SecoVac series MV embedded pole vacuum circuit breaker instead of SF6 gas.

Page 5: 3.3kV-27kV Air Insulated Switchgear - Promelsa.com.pe

ContentsGeneral Introduction

Product Description

GE

GE Industrial Solutions

SecoGear Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 02

Solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 07

Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 08

Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Installation Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Switchgear Compartment

Vacuum Circuit Breaker . . . . . . . . . . . . . . . . . . . . . . 44

CT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

VT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Earthing Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49Cable Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Measurement, Protection and Control

Multilin 3 Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Multilin 650 Family . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Configurations

Typical Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Incoming/Feeder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Busbar Tie . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Riser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Riser with VT and CT . . . . . . . . . . . . . . . . . . . . . . . . . . 26

VT Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Incoming with Measuring (VT) . . . . . . . . . . . . . . . . . 28Incoming with ES & VT . . . . . . . . . . . . . . . . . . . . . . . . 29Incoming with ES & Fix VT. . . . . . . . . . . . . . . . . . . . . 30Riser with ES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

CPT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Product Introduction

Product Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 14

Control and Operation . . . . . . . . . . . . . . . . . . . . . . . . 17

Technical Characteristics . . . . . . . . . . . . . . . . . . . . . 18

Operation Conditions . . . . . . . . . . . . . . . . . . . . . . . . . 19

Storage Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

IEC Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

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SecoGear 3.3kV-27kV Air Insulated Switchgear

For over 80 years, General Electric has provided medium voltage equipment combining advanced technology with engineering excellence. The SecoGear range provides the highest safety and reliability standards with a cost effective solution in the public distribution, industry and building sectors.

MV Switchgear with better reliability and safety.

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SecoGear 3.3kV-27kV Air Insulated Switchgear

● Indoor, metal-enclosed switchgear designed for the MV

section of HV/MV and MV/MV substation

● Air insulated switchgear with a compact design

● Safe and Reliable switchgear for universal indoor applications

● Designed with full metallic segregation of its internal

compartments

● Equipped with the latest design embedded pole SecoVac

vacuum circuit breaker

● Cable compartments with ample space for ease of power

cable connection

● Fully arc-proof unit up to 40kA for 1 second AFLR, 24/27kV

31.5kA/1s

● Tested in accordance with the IEC and GB international

standards

● Tested to UBC zone 4 and GB intensity 9 for Seismic

● Front panel features easy operation and low maintenance

● Complete interlocking system to prevent incorrect operation

and to improve safety

SecoGear Series 3.3/7.2/12/13.8/15/17.5/24/27kV Switchgear

Innovative in its design, GE' s SecoGear is compact Air insulated

switchgear and leads the industry in safety, reliability,

performance and sustainability. Fully IEC certified at the KEMA

and IPH test labs to IEC 62771-100 and 62771-200.

SecoGear Switchgear is suited to provide control and protection

for cables, transformers, capacitors and motors used across

many industries. SecoGear excels anywhere that medium voltage

power has to be switched, controlled and protected.

Unit compartment

A Circuit breaker compartment

B Busbar compartment

C Cable compartment

D Low voltage compartment

A

B

C

D

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SecoGear 3.3kV-27kV Air Insulated Switchgear

Built to highest quality standards Circuit breaker making and breaking capacity

Earthing switch making capacity

Fully type tested to latest IEC standards

SecoGear is designed and fully third-

party type tested to the latest IEC 62271-

200 standards. It is fully isolated by

earthed metal partitions for all the major

compartments. It is equipped with GE' s

very latest series of IEC vacuum circuit

breakers type SecoVac, which are fully

third party type tested in accordance

with IEC 62771-100. Using GE’s state of

the art technology, and manufactured

in accordance with the highest quality

standards; our engineers have integrated

core technologies. These technologies

such as circuit breaker and mechanism

design, vacuum arc control technology,

insulation technology and electrical field

control and analysis combine to build

a highly reliable and compact system.

SecoGear benefits from GE' s best

practices incorporated in our current

medium voltage.

The typical rated voltage of SecoGear

is 3.3/7.2/12/13.8/15/17.5/24/27kV and

rated current ranges for SecoGear up to

17.5 is from 630A to 4000A(4000A is force

cooled), for SecoGear 24/27kV the rated

current is up to 2500A. All SecoGear with a

switching device is equipped with SecoVac

vacuum circuit breaker with corresponding

specifications.

The SecoVac vacuum circuit breaker is

subjected to the rated current and short-

circuit current breaking tests.

Furthermore, it is also subjected to the

opening and closing of capacitive and

inductive loads, capacitor banks and/or

cable lines.

The earth switch of the SecoGear

switchgear can be closed under short-

circuit up to 31.5kA. The earth switch

is interlocked to avoid being operated

on circuits which are still live. However,

should the switch be accidentally closed

then safety of the operating personnel is

assured by arc fault containment.

The switchgear is type tested to the

latest IEC 62271-200 and has the third

party certification to prove internal arc

containment classification of AFLR from

31.5kA for 1 second and up to 40kA for 1

second, 24/27kV 31.5kA/1s. This means

protection against harm to personnel in

the unlikely event of an internal arc in

the cable compartment, vacuum circuit

breaker compartment and the bus bar

compartment in any direction: front, rear

and sides of the switchgear.

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SecoGear 3.3kV-27kV Air Insulated Switchgear

Mechanical operations

IP degree

High ambient temperatures

Seismic rating

The mechanical endurance tests on all

the operating parts ensure the reliability

of the apparatus. General experience

in the electro-technical sector shows

that mechanical faults are one of the

most common causes of a fault in an

installation.

The circuit breaker is tested by carrying

out a high number of operations - higher

than those which are normally carried out

by installations in the field.

Furthermore, the switchgear components

are part of a quality control program

and samples are regularly taken from

the production lines and subjected to

total mechanical life tests to verify that

the quality is identical to that of the

components subjected to the type tests.

The IP protection degree is the resistance

offered by SecoGear against penetration

of solid objects and liquids. This degree

of resistance is indicated by the prefix IP

followed by two characters (IP 4X is for the

enclosure and IP 2X for the partitions.).

The first number identifies the degree of

protection against the entrance of solid

objects, the second one is related to

liquids.

The service conditions for the electrical

apparatus in marine installations are

generally more severe than those in

normal land applications. Temperatures

are a main factor and for this reason the

shipping register regulations require the

switchgear to be able to operate at higher

ambient temperatures (40 °C or higher).

Up to Uniform Building Code (UBC) 1997 -

Zone 4

10.000

Zone4 [SRS]Minimum (1.0,3.63974E-001) Maximum (2.454353,2.5735E+000)

g

10.000Hz

100.00

1.0000

1.00000.1000

Shock wave

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SecoGear 3.3kV-27kV Air Insulated Switchgear

Minimal costs during service due to:

● Robust maintenance-free design with minimum number of parts

● SecoVac vacuum circuit breaker has a long life of 10,000 operations without the need for active

maintenance

● An advanced vacuum interrupter contact design prevents hot spots, creates less heat and minimizes

electrode erosion to yield longer life

● Low end of life disposal costs due to:

- Vacuum switching technology

- Air insulation

- Recycling or re-use of all materials possible

- No special decommissioning procedures necessary

User interface friendly

● Cable connection and user interfaces for operation on the same side of the unit

● Up to 6 cables per phase with standard compression lug for ease of cable connection

● Secondary cable entry points on both sides of the low voltage compartment top plate

● Secondary cable wiring runs over the length of the switchgear to help with inter-unit wiring

● Secondary cable terminals positioned at a good reachable height within the low voltage compartment

● Clear and simple, straightforward operation, panels combined with an active LED mimic diagram

● Compact footprint

● Cable access from front or rear

● Cable entry from either top or bottom

● Easy-access cable compartment for ease of cable connection

● Integrated arc chamber

● Back to wall configuration with front cable access

Low lifetime cost

Low initial costs due to:

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SecoGear 3.3kV-27kV Air Insulated Switchgear

Solutions

● Flexible and adapted solution

● The experience of GE a global electrical

manufacturer

● Dedicated engineering

SecoGear has a draw out mechanism that is designed to avoid misalignment during

racking, therefore overheating of the primary disconnect is totally prevented. The

draw out mechanism is bolted to the enclosure frame with a double bended support.

Intuitive industrial and utility protective

relays for feeders, motors and transformers

● Easy to use and cost effective

● Effortless draw-out construction

● Environmental monitoring system to

alarm on destructive operating conditions

● Easy to use interface and set up in one step

● Accelerated Life Cycle tested to ensure

reliability under abnormal conditions

● Advanced diagnostics to increase

reliability

● Flexible communications with multiple

ports & protocols to allow seamless

integration

● Easy access to information via multiple

communication network options

● Powerful Security Audit Trail

● SecoGear provides the most efficient

means to control and protect a wide

range of applications

● With the use of GE Multilin devices,

SecoGear can be easily integrated

into a monitoring and control system

SecoGear offers you:

Rack in/out draw out mechanism

Smart distribution

Key benefits of Multilin Protection Relays

GE's Multilin protection, monitoring and control relays

Solutions ● By special order request

● For remote control from a central

control room for intelligent switchgear

systems

● The following functions of SecoGear

are provided:

- Motorized draw out mechanism for

remote connect and test position

- Remote opening and closing the

switchgear device

- Motorized line side earth switch

Remote control solution

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SecoGear 3.3kV-27kV Air Insulated Switchgear

Applications

Utilities and power plantsPower generation stations

Transformer stations

Switching stations

Main and auxiliary switchgear

IndustryOil and Gas

Mining

Marine

Pulp and Paper

Cement

Textiles

Chemicals

Automotive

Petrochemical

Data Center

Metallurgy

TransportAirports

Ports

Railways

Underground transport

ServicesSupermarkets

Shopping malls

Hospitals

Large infrastructure and civil works

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SecoGear 3.3kV-27kV Air Insulated Switchgear

Appl

icat

ions

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SecoGear 3.3kV-27kV Air Insulated Switchgear

Safety

SCALE 1,000

SCALE 1,000

P13

Arc release channel

Interlock

Arc Release System

Arc Release System is a perfect solution

for E-house , marine and other limited

places, which do not allow hot particles

and gases into the room. And it also

guarantees personnel safety.

Each panel is fitted with two metal mesh

boards on the top of it . The pressure

generated by arc fault makes it open,

allowing the gas and particles into the

When developing modern medium

voltage switchgear, personnel safety must

take priority. This is why the SecoGear

switchgear has been designed and tested

to withstand an internal arc due to a

short-circuit current of the same current

level as the maximum shorttime withstand

level.

The tests show that the metal housing

of SecoGear switchgear provides an

enhanced degree of protection for

personnel near the switchgear in the case

Internal Arc Containment

of an internal arcing fault.

SecoGear up to 27kV passes the 31.5kA/1s

and 40kA/1s IAC test.

● All high voltage primary compartment

are provided with pressure relief

flaps located on the topside of the

switchgear

● Any overpressure inside the

compartment caused by internal

arcing will be released through the

pressure relief flaps

tunnel and evacuate to the outside of the

room.

Switchgear with standard arc release

system can be used where the room

height is greater than 3000mm. At the

location of the exhaust exits from the

switchroom, personal access should be

limited.

546

C View

650 650 1000 1200

900

2720

C

1500

1152 1152

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SecoGear 3.3kV-27kV Air Insulated Switchgear

GE safety interlock systems guarantee

the highest level of personnel safety

preventing operator errors from occurring.

SecoGear is designed with a number

of interlocking systems to prevent mis-

operation:

● The circuit breaker can only be moved

from test to connect position and vice

versa when circuit breaker is opened

● The earthing switch cannot be closed

when the circuit breaker is in the

connect position and in the traveling

position between test and connect

● The cable compartment door can be

opened only when the earthing switch

is closed

Interlock

Safety

SCALE 1,000

SCALE 1,000

P13

Arc release channel

Interlock

● The earthing switch can be opened

only when the cable compartment

door is closed

● The secondary plug can be inserted or

removed only when the circuit breaker

is in the test position

● The circuit breaker can only be closed

when the circuit breaker is positively

located in the test or connect position

● When the circuit breaker is removed

from connect position, the metal

shutters will close automatically

preventing access to live connections

Description of the interlock system Key ConditionKey-lock for VCB rack in

Functional truck racking-in lockKey will be free when the truck in the disconnect positionKey will be trapped when the truck in the rack-in position

Key-lock for Earthing switch

Earthing switch closing lockKey will be free when the earthing switch is openKey will be trapped when the earthing switch in closed position

Earthing switch opening lockKey will be free when the earthing switch closedKey will be trapped when the earthing switch in open position

A

A

B

B

C

C

C

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SecoGear 3.3kV-27kV Air Insulated Switchgear

Environment

Increasing global legislation concerning the use of green -

house gases such as SF6 gas and their related disposal costs,

makes vacuum technology with its reliability, low maintenance,

and low environmental impact the choice for now and the

future.

As the world strives to reduce the amount of SF6 gas used

in all applications there is a responsibility on the users of

electrical switchgear to find, where appropriate, alternatives to

SF6 gas as an insulation and switching medium. Air and solid

insulation switchgear systems incorporating vacuum switching

technologies are a reliable, safe and economic alternative for

use in electrical systems below 36kV and therefore should be

used instead of SF6 gas insulated systems.

Modern medium voltage switchgear employing vacuum

technology together with air and epoxy resin insulation

provides:

● Minimum number of parts and components

● No special requirements for the end-of-life disposal of the

switchgear

● Environmentally-friendly materials used in the design

● No use of SF6-gas for switching and insulation

● No risk of damaging leaks of SF6 gas or of toxic byproducts

● Energy-efficient production and assembly, with

environmentally friendly energy sources

● Minimal number of transition points in the primary design

enables low energy loss during operation

● Only re-usable and/or recyclable materials used

GE's production plants act entirely in

accordance with the rules and procedures

of the ISO 14001 environmental certificate

during development and production

processes.

Material selection and the number of

parts that are used to manufacture the

SecoGear are critical to determining

how environmentally friendly the

manufacturing process is. GE selects

its materials to ensure that they have

the lowest possible impact on the

environment. It is essential that they are

equally safe for people not just during use,

but at the end of service life too. Within

SecoGear and the SecoVac vacuum circuit

breaker, a combination of solid (cast-resin)

and air is used as insulation. The cast-

resin technology, in combination with

electrical field calculations, provides a very

compact, environmentally friendly design

for the circuit breaker and the switchgear.

Because the switching medium - vacuum

– is used, SecoGear can be completely

recycled at the end of its life without

any issues relating to safety procedures,

special handling or safe disposal.

Environmentally friendly design

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SecoGear 3.3kV-27kV Air Insulated Switchgear

Envi

ronm

ent

Environmentally friendly

From the very beginning GE made a

fundamental choice not to use SF6 as

a switching and insulation medium for

primary medium voltage equipment. SF6

is on the list of greenhouse gasses in the

Kyoto protocol and is the most potent

of the six main greenhouse gasses, with

a Global Warming Potential (GWP) of

23,000. Many other medium voltage

switchgear systems use SF6 gas as the

insulating medium. Leakage of SF6 gas

from switchgear contributes significantly

to the threat of the greenhouse effect and

associated climate change. They also

require additional safety measures and

special handling requirements at the end

of life.

Minimum service checks on site

SecoGear is designed for a lifetime of at

least 20 years; therefore the energy usage

for maintenance activities during this

long period is minimal. Due to the green

insulation and switching technology,

there is also no leakage of the harmful

SF6 gas during its lifetime and no need for

performing extra maintenance activities

on SF6 gas pressure checks.

Minimal energy loss during operation

The number of electrical contact or

changeover points within the SecoGear

system has been kept to an absolute

minimum. This reduces the potential

number of "hot spots" and prevents

additional energy loss associated with

contact surfaces.

Energy efficient assembly

SecoGear is produced in an energy

efficient environment. Standard

processes and materials are used in the

design and require no special handling

or manufacturing processes, thus

reducing the amount of energy required

to manufacture and assemble the

switchgear.

Efficient use of materials

Besides the energy sources, special

focus is placed on the efficient use of

material during assembly. For example

by using advanced nesting tools the

hot dipped galvanized steel plates are

cut with the least amount of waste, and

similar principles are followed in the

design and manufacture of other product

components

Re-use or recycling of materials

All materials of SecoGear and SecoVac

can be reused, all materials are not any

impact on the environment, it fully reflects

the GE corporate social responsibility to

design and produce products.

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SecoGear 3.3kV-27kV Air Insulated Switchgear

Product IntroductionProduct Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 14

Control and Operation . . . . . . . . . . . . . . . . . . . . . . . . 17

Technical Characteristics . . . . . . . . . . . . . . . . . . . . . 18

Operation Conditions . . . . . . . . . . . . . . . . . . . . . . . . . 19

Storage Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

IEC Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

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SecoGear 3.3kV-27kV Air Insulated Switchgear

1 Low voltage compartment

The compartment is isolated with earthed metal partitions and

has ample space for control and protection devices.

A fully isolated metal wire way is mounted at the top of each

switchgear panel; this connects together to form a

continuous low voltage wire way that runs along

the entire length of the switchgear.

2 Busbar compartment

Busbars are totally enclosed in their own earthed

metal compartment which vents into the arc

chamber. Fully insulated along their entire length,

the busbars for up to 27kV SecoGear are type

tested for ratings up to 4000A, 40kA for 3 seconds.

for 24/27kV SecoGear, the busbars are type tested

for rating up to 2500A, 31.5kA for 3 seconds. Epoxy

moldings separate switchgear sections.

3 Vacuum circuit breaker compartment

Fully isolated by earthed metal partitions, with

its own pressure relief channel into the arc

chamber. The compartment provides all the safety

interlocking mechanisms required for safe and

reliable operation of the vacuum circuit breaker.

Manual operation buttons allow for full operation

of the vacuum circuit breaker from the front of the

switchgear with the door fully closed. The circuit breaker is

mechanically interlocked with the compartment door so that

the door cannot be opened until the circuit breaker is switched

off and racked out into the Test position.

Product Introduction

1

2

3

4

6

5

810

7

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SecoGear 3.3kV-27kV Air Insulated Switchgear

4 Automatic shutters

When the circuit breaker is in Test or Disconnect position, the

shutters automatically close to isolate the fixed contact from

any live parts. Shutters can be individually and automatically

operated for bus side and feeder side connection in close

position.

5 Earth switch

The earthing switch can be

operated from the front of the

switchgear. It is mechanically

interlocked with the circuit

breaker truck so that the earthing switch can only be operated

when the circuit breaker is open in Test/Disconnect position as

well. The switch is also mechanically interlocked with the cable

compartment for additional safety.

6 Current transformers

Current transformers are cast

in resin, and totally enclosed.

This provides superior protection

against pollutants and moisture.

It can be equipped with one

or more independent magnetic cores with equal or different

characteristics for measuring, metering and protection purposes.

7 Voltage transformers

Voltage transformers are cast

in resin, and totally enclosed.

This provides superior protection

against pollutants and moisture.

It can be equipped with one

or more independent magnetic cores with equal or different

characteristics for measuring, metering and protection purposes.

8 Cable compartment

Cable supports are provided to

secure cables. Cable clamps are

applied for fix the cables. And the

metal floor cover is removable.

9 Earth bar

Earth bar is made of copper and

installed in the bottom of cable

compartment. The earth bar

system has been fault tested and

runs vertically and horizontally

with each panel section and is

connected to the earth switch.

10 Surge arrester

Surge arrester is used to protect

electric equipment against

transient operating or lightning

over-voltage. It is connected

between primary conductor and

ground for protecting protective load from damage effect. When

the operating or lightning over-voltage occurs, surge arrester

immediately limits over-voltage amplitude and protects the

insulation of device.

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SecoGear 3.3kV-27kV Air Insulated Switchgear

Control and Operation

Low voltage control and protection compartmentPanel with all controls and indicators clearly visible and easy to operate

Protection relayGE has a range of Multilin relay options that can be fitted as standard. However, customer specific protection relays from any manufacturer can be fitted to the compartment door

Mimic diagramEasy to understand mimic diagram of each circuit

Circuit breaker position indicatorBreaker position indication shows the breaker in the connected/service or disconnected/test position

Electrical operation with circuit breaker status indicatorBreaker open/closed status indicator.Breaker open/closed command switch.Optional LED indication of spring charge mechanism “charged” status

Voltage detection systemEach circuit breaker panel can be equipped with an optional standard three phase voltage detection system for voltage detection to IEC61243-5

Viewing windowsThe circuit breaker compartment door viewing window provides visual indication of the position of the circuit breaker indicating:- The status of the breaker- The status of the spring charged mechanism

Circuit breaker racking operate holeCircuit breaker racking in/out operate hole

Earthing switch operate holeEarthing switch open/close

Earthing Switch viewing window

1

1

2

3

4

5

6

7

8

9

3

2

54

6

7

8

9

10

10

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SecoGear 3.3kV-27kV Air Insulated Switchgear

Technical Characteristics

Protection

Connections

Construction

Rated voltage kV 7.2 12 15 17.5 24 27Rated power frequency (1min) kV 20 28 36 38 50 65Rated lightning impulse (1.2/50μs) kV 60 75 95 95 125 125Rated frequency Hz 50/60 50/60Rated current (main busbar) A 630/1250/2000/2500/3150/4000* 1250, 2500Rated short time withstand (3sec) kA 25/31.5/40 31.5Rated peak withstand current 1 kA 65/82/104 82

IP level for weather protectionEnclosure IP4X IP4X

Between compartment IP2X IP2X

*4000A switchgear with force cooling

● IP4X for the enclosure

● IP2X between each compartment

● IP42 optional

● Front and/or rear access

● Cable entry from bottom or top

● Internal arc withstand (classification IAC): AFLR

● 3 compartments (classification LSC2B according to IEC 62271-200)

● All the metal surfaces in the panels are corrosion proof

● Panels are produced using hot dipped galvanized steel sheet

● Busbar fully insulated for 7.2kV, 12kV, 13.8kV, 15kV, 17.5kV, 24kV, 27kV

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SecoGear 3.3kV-27kV Air Insulated Switchgear

Operating Conditions

Normal operating conditions

Special operating conditions

High altitude application

Note on any special climatic operating conditions

The switchgear is fundamentally designed

for the normal service conditions for

indoor switchgear to IEC Publication

62271-1. The following limit values, among

others, apply.

● Ambient temperature

- Maximum +40°C

- 24h-Medium +35°C

- Minimum -15°C

● Humidity

- Highest average value measured over

24 hours

- Relative humidity 95%

- Highest average value measured over

1 month

- Relative humidity 90%

● The maximum site altitude is 1000 m

above sea level

● Seismic Rating up to Uniform Building

Code (UBC) 1997 Zone 4

SecoGear is suitable for operation in the

climate of indoor type according to IEC

standard. Special operating conditions

must be discussed with GE in advance.

For example: At site altitudes above 1000

m, the effects of the reduction in density of

the air on the dielectric properties must be

taken into account.

Increased ambient temperatures must

be compensated for in the design of the

busbar and the branch conductors as well

as the withdrawable parts; otherwise the

current carrying capacity will be reduced.

Fitting additional ventilation facilities can

assist heat dissipation in the switchgear

panel.

The insulating capacity of the switchgear

with rated values of short-time power-

frequency withstand voltage and impulse

withstand voltage according to IEC62271-1.

When the switchgear is operated in areas

with high humidity and/or major rapid

temperature fluctuations, there is a risk

of condensation. Preventive action (e.g.

fitting the electric heater) must be taken

in consultation with the manufacturer to

avoid the condensation and any resulting

corrosion or other adverse effects. The

control of the heaters depends on the

relevant project.

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SecoGear 3.3kV-27kV Air Insulated Switchgear

Storage Conditions

IEC Standards

In order to retain all of the functional

unit’s qualities when stored for

prolonged periods, we recommend that

the equipment is stored in its original

packaging,in dry conditions sheltered

from the sun and rain at a temperature of

between –25°C and + 55°C.

SecoGear complies with the standards

and specifications for factory assembled

metal enclosed switchgear and has been

type tested in accordance with the IEC

publications as given below.

IEC62271-100: 2008 High-voltage alternating current circuit breakers.

IEC62271-200: 2003 AC Metal enclosed switchgear and control gear for rated voltages

above 1kV and up to 52kV.

IEC62271-102: 2001 High-voltage alternating current disconnector and Earth Switches.

IEC62271-1: 2007 The common specification for high voltage switchgear and

control gear Standards.

IEC60529:1989 Degrees of protection as provided by enclosures (IP Code).

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SecoGear 3.3kV-27kV Air Insulated Switchgear

ConfigurationsTypical Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Incoming/Feeder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Busbar Tie . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Riser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Riser with VT and CT . . . . . . . . . . . . . . . . . . . . . . . . . . 26

VT Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Incoming with Measuring (VT) . . . . . . . . . . . . . . . . . 28

Incoming with ES & VT . . . . . . . . . . . . . . . . . . . . . . . . 29

Incoming with ES & Fix VT. . . . . . . . . . . . . . . . . . . . . 30

Riser with ES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

CPT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

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SecoGear 3.3kV-27kV Air Insulated Switchgear

Typical Panels

3.3kV-17.5kV

24kV-27kV

The SecoGear series comprises 7 basic configuration applications.

The table below can be used to link requirements to functional units and gives basic

information on the general composition of each unit.

Incoming with ES & VT Incoming with ES & Fix VT Riser with ES CPT Busbar Tie with ES

Incoming/Feeder Incoming with VT Busbar Tie Riser Riser with measuring (VT)

VT truck Incoming with measuring

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SecoGear 3.3kV-27kV Air Insulated Switchgear

P26

2240

17

Incoming/Feeder

Rated Voltage (kV)              

    7.2 12 15 17.5 24 27

Rated Insulation Level                  

Power frequency withstand voltage (kV)   20 28 36 38 65 65

Lightning impulse withstand voltage (kV)   60 75 95 95 125 125

Rated current (A)

630 ■   ■   ■ ■   ■   ■  

1250 ■   ■   ■ ■   ■   ■  

1600   ■   ■ ■   ■   ■   ■

2000   ■   ■ ■   ■   ■   ■

2500   ■   ■ ■   ■   ■   ■

3150   ■   ■ ■   ■    

4000*   ■   ■ ■   ■    

Breaking capacity (kA)

25 ■   ■   ■ ■   ■   ■  

31.5 ■   ■   ■ ■   ■   ■  

40   ■   ■   ■    

Short time withstand current (kA/3s)

25 ■   ■   ■ ■   ■   ■  

31.5 ■   ■   ■ ■   ■   ■  

40   ■   ■ ■   ■    

*4000A switchgear with force cooling

Dimensions (mm)                  

Width (W)   650 1000 650 1000 650 1000 650 1000 650 1000 650 1000

Height (H)   2200 2200 2200 2200 2200 2200 2200 2200 2400 2400 2400 2400

Depth (D)Top Access 1900 1900 1900 1900 1900 1900 1900 1900 - - - -

Bottom Access   1400 1400 1400 1400 1400 1400 1400 1400 1800 1800 1800 1800

Estimated Weight (kg) ≥ 615 ≥ 615 ≥ 615 ≥ 615 ≥ 1100 ≥ 1100

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SecoGear 3.3kV-27kV Air Insulated Switchgear

Busbar Tie

Rated Voltage (kV)              

    7.2 12 15 17.5 24 27

Rated Insulation Level                      

Power frequency withstand voltage (kV)   20 28 36 38 65 65

Lightning impulse withstand voltage (kV)   60 75 95 95 125 125

Rated current (A)

630 ■   ■   ■ ■   ■   ■  

1250 ■   ■   ■ ■   ■   ■  

1600   ■   ■ ■   ■   ■   ■

2000   ■   ■ ■   ■   ■   ■

2500   ■   ■ ■   ■   ■   ■

3150   ■   ■ ■   ■    

4000*   ■   ■ ■   ■    

Breaking capacity (kA)

25 ■   ■   ■ ■   ■   ■  

31.5 ■   ■   ■ ■   ■   ■  

40   ■   ■ ■   ■    

Short time withstand current (kA/3s)

25 ■   ■   ■ ■   ■   ■  

31.5 ■   ■   ■ ■   ■   ■  

40   ■   ■ ■   ■    

Dimensions (mm)                      

Width (W)   650 1000 650 1000 650 1000 650 1000 650 1000 650 1000

Height (H)   2200 2200 2200 2200 2200 2200 2200 2200 2400 2400 2400 2400

Depth (D)   1400 1400 1400 1400 1400 1400 1400 1400 1800 1800 1800 1800

Estimated Weight (kg) ≥ 615 ≥ 615 ≥ 615 ≥ 615 ≥ 1100 ≥ 1100

*4000A switchgear with force cooling

P28

SCALE 1,000

10

A

B C

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SecoGear 3.3kV-27kV Air Insulated Switchgear

Riser

Rated Voltage (kV)              

    7.2 12 15 17.5 24 27

Rated Insulation Level                      

Power frequency withstand voltage (kV)   20 28 36 38 65 65

Lightning impulse withstand voltage (kV)   60 75 95 95 125 125

Rated current (A)

630 ■   ■   ■ ■   ■   ■  

1250 ■   ■   ■ ■   ■   ■  

1600   ■   ■ ■   ■   ■   ■

2000   ■   ■ ■   ■   ■   ■

2500   ■   ■ ■   ■   ■   ■

3150   ■   ■ ■   ■    

4000*   ■   ■ ■   ■    

Breaking capacity (kA)

25 ■   ■   ■ ■   ■   ■  

31.5 ■   ■   ■ ■   ■   ■  

40   ■   ■ ■   ■    

Short time withstand current (kA/3s)

25 ■   ■   ■ ■   ■   ■  

31.5 ■   ■   ■ ■   ■   ■  

40   ■   ■ ■   ■    

Dimensions (mm)                      

Width (W)   650 1000 650 1000 650 1000 650 1000 650 1000 650 1000

Height (H)   2200 2200 2200 2200 2200 2200 2200 2200 2400 2400 2400 2400

Depth (D)   1400 1400 1400 1400 1400 1400 1400 1400 1800 1800 1800 1800

Estimated Weight (kg) ≥ 615 ≥ 615 ≥ 615 ≥ 615 ≥ 1100 ≥ 1100

*4000A switchgear with force cooling

P29

A

B C

SCALE 1,000

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SecoGear 3.3kV-27kV Air Insulated Switchgear

Riser with VT and CT

Rated Voltage (kV)        

    7.2 12 15 17.5 24 27

Rated Insulation Level            

Power frequency withstand voltage (kV)   20 28 36 38 65 65

Lightning impulse withstand voltage (kV)   60 75 95 95 125 125

Rated current (A)

630 ■ ■ ■ ■ ■ ■

1250 ■ ■ ■ ■ ■ ■

1600 ■ ■ ■ ■ ■ ■

2000 ■ ■ ■ ■ ■ ■

2500 ■ ■ ■ ■ ■ ■

3150 ■ ■ ■ ■

4000 ■ ■ ■ ■

Short time withstand current (kA/3s)

25 ■ ■ ■ ■ ■ ■

31.5 ■ ■ ■ ■ ■ ■

40          

Dimensions (mm)            

Width (W)   800 800 800 800 800 800

Height (H)   2200 2200 2200 2200 2400 2400

Depth (D)   1400 1400 1400 1400 1800 1800

Estimated Weight (kg) ≥ 615 ≥ 615 ≥ 615 ≥ 615 ≥ 1100 ≥ 1100

P30

10

95.5

76

JSZV17-15R

15

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SecoGear 3.3kV-27kV Air Insulated Switchgear

VT Panel

Rated Voltage (kV)        

    7.2 12 15 17.5 24 27

Rated Insulation Level            

Power frequency withstand voltage (kV)   20 28 36 38 65 65

Lightning impulse withstand voltage (kV)   60 75 95 95 125 125

Short time withstand current (kA/3s)

25 ■ ■ ■ ■ ■ ■

31.5 ■ ■ ■ ■ ■ ■

40 ■ ■ ■ ■

Dimensions (mm)            

Width (W)   800 800 800 800 800 800

Height (H)   2200 2200 2200 2200 2400 2400

Depth (D)   1400 1400 1400 1400 1800 1800

Estimated Weight (kg) ≥ 615 ≥ 615 ≥ 615 ≥ 615 ≥ 1100 ≥ 1100

P31

95.5

76

JSZV17-15R

15

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SecoGear 3.3kV-27kV Air Insulated Switchgear

Incoming with Measuring (VT)

Rated Voltage (kV)              

    7.2 12 15 17.5 24 27

Rated Insulation Level                      

Power frequency withstand voltage (kV)   20 28 36 38 65 65

Lightning impulse withstand voltage (kV)   60 75 95 95 125 125

Rated current (A)

630 ■   ■   ■ ■   ■   ■  

1250 ■   ■   ■ ■   ■   ■  

1600   ■   ■ ■   ■   ■   ■

2000   ■   ■ ■   ■   ■   ■

2500   ■   ■ ■   ■   ■   ■

3150   ■   ■ ■   ■    

4000*   ■   ■ ■   ■    

Breaking capacity (kA)

25 ■   ■   ■ ■   ■   ■  

31.5 ■   ■   ■ ■   ■   ■  

40   ■   ■ ■   ■    

Short time withstand current (kA/3s)

25 ■   ■   ■ ■   ■   ■  

31.5 ■   ■   ■ ■   ■   ■  

40   ■   ■ ■   ■    

Dimensions (mm)                      

Width (W)   650 1000 650 1000 650 1000 650 1000 650 1000 650 1000

Height (H)   2200 2200 2200 2200 2200 2200 2200 2200 2400 2400 2400 2400

Depth (D)   1400 1400 1400 1400 1400 1400 1400 1400 1800 1800 1800 1800

Estimated Weight (kg) ≥ 615 ≥ 615 ≥ 615 ≥ 615 ≥ 1100 ≥ 1100

P32

SCALE 1,000

10

*4000A switchgear with force cooling

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Incoming with ES & VT

Rated Voltage (kV)  

    24

Rated Insulation Level      

Power frequency withstand voltage (kV)   65

Lightning impulse withstand voltage (kV)   125

Rated current (A)

630 ■  

1250 ■  

1600   ■

2000   ■

2500   ■

Breaking capacity (kA)25 ■  

31.5 ■  

Short time withstand current (kA/3s)25 ■  

31.5 ■  

Dimensions (mm)      

Width (W)   800 1000

Height (H)   2400 2400

Depth (D)   1800 1800

Estimated Weight (kg) ≥ 1100

P29

*4000A switchgear with force cooling

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SecoGear 3.3kV-27kV Air Insulated Switchgear

Incoming with ES & Fix VT

Rated Voltage (kV)  

    27

Rated Insulation Level      

Power frequency withstand voltage (kV)   65

Lightning impulse withstand voltage (kV)   125

Rated current (A)

630 ■  

1250 ■  

1600   ■

2000   ■

2500   ■

Breaking capacity (kA)25 ■  

31.5 ■  

Short time withstand current (kA/3s)25 ■  

31.5 ■  

Dimensions (mm)      

Width (W)   650 1000

Height (H)   2400 2400

Depth (D)   1800 1800

Estimated Weight (kg) ≥ 1100

P30

*4000A switchgear with force cooling

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Riser with ES

Rated Voltage (kV)  

    27

Rated Insulation Level      

Power frequency withstand voltage (kV)   65

Lightning impulse withstand voltage (kV)   125

Rated current (A)

630 ■  

1250 ■  

1600   ■

2000   ■

2500   ■

Breaking capacity (kA)25 ■  

31.5 ■  

Short time withstand current (kA/3s)25 ■  

31.5 ■  

Dimensions (mm)      

Width (W)   650 1000

Height (H)   2400 2400

Depth (D)   1800 1800

Estimated Weight (kg) ≥ 1100

P31

*4000A switchgear with force cooling

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CPT

Rated Voltage (kV)  

    27

Rated Insulation Level      

Power frequency withstand voltage (kV)   65

Lightning impulse withstand voltage (kV)   125

Rated current (A)

630 ■  

1250 ■  

1600   ■

2000   ■

2500   ■

3150   ■

4000*   ■

Breaking capacity (kA)

25 ■  

31.5 ■  

40   ■

Short time withstand current (kA/3s)

25 ■  

31.5 ■  

40   ■

Dimensions (mm)      

Width (W)   650 1000

Height (H)   2400 2400

Depth (D)   1800 1800

Estimated Weight (kg) ≥ 1100

P32

*4000A switchgear with force cooling

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SecoGear 3.3kV-27kV Air Insulated Switchgear

Busbar Tie with ES

Rated Voltage (kV)  

    27

Rated Insulation Level      

Power frequency withstand voltage (kV)   65

Lightning impulse withstand voltage (kV)   125

Rated current (A)

630 ■  

1250 ■  

1600   ■

2000   ■

2500   ■

Breaking capacity (kA)25 ■  

31.5 ■  

Short time withstand current (kA/3s)25 ■  

31.5 ■  

Dimensions (mm)      

Width (W)   650 1000

Height (H)   2400 2400

Depth (D)   1800 1800

Estimated Weight (kg) ≥ 1100

P32

*4000A switchgear with force cooling

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P33

Scheme Number 13 14 15 16 17 18

Primary Scheme

Rated Curent (A) 630~4000 630~4000 630~4000 630~4000 630~4000 630~4000

Main Apparatus

Vacuum Circuit Breaker 1 1Current Transformer 2 3Voltage Transformer 3 3 2 2 3 3High Voltage Fuse 3 3 3 3 3 3Earthing Switch 1Arrester 3 3

Application I/F I/F VT VT VT VTSwitchgear Width (mm) 650/1000 650/1000 650/1000 650/1000 650/1000 650/1000

Scheme Number 07 08 09 10 11 12

Primary Scheme

Rated Curent (A) 630~4000 630~4000 630~4000 630~4000 630~4000 630~4000

Main Apparatus

Vacuum Circuit Breaker 1 1 1 1 1 1Current Transformer 2 2 3 3 2 3Voltage Transformer 2 2High Voltage Fuse 3 3Earthing SwitchArrester

Application B B B B I/F I/FSwitchgear Width (mm) 650/1000 650/1000 650/1000 650/1000 650/1000 650/1000

Scheme Number 01 02 03 04 05 06

Primary Scheme

Rated Curent (A) 630~4000 630~4000 630~4000 630~4000 630~4000 630~4000

Main Apparatus

Vacuum Circuit Breaker 1 1 1 1 1 1Current Transformer 2 2 2 3 3 3Voltage TransformerHigh Voltage FuseEarthing Switch 1 1 1 1Arrester 1 1

Application I/F I/F I/F I/F I/F I/FSwitchgear Width (mm) 650/1000 650/1000 650/1000 650/1000 650/1000 650/1000

Configurations scheme

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SecoGear 3.3kV-27kV Air Insulated Switchgear

P34

Scheme Number 25 26 27 28 29 30

Primary Scheme

Rated Curent (A) 630~1250

Main Apparatus

Vacuum Circuit BreakerCurrent Transformer 2Voltage Transformer 3High Voltage Fuse 3Earthing SwitchArrester

Application MSwitchgear Width (mm) 800

Scheme Number 19 20 21 22 23 24

Primary Scheme

Rated Curent (A) 630~4000 630~4000 630~4000 630~4000 630~4000 630~4000

Main Apparatus

Vacuum Circuit BreakerCurrent Transformer 2 2 3 3Voltage Transformer 2 2 2 2High Voltage Fuse 3 3 3 3Earthing SwitchArrester

Application R R M M M MSwitchgear Width (mm) 650/1000 650/1000 650/1000 650/1000 650/1000 650/1000

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SecoGear 3.3kV-27kV Air Insulated Switchgear

Measurement, Protection and ControlMultilin 3 Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Multilin 650 Family . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

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SecoGear 3.3kV-27kV Air Insulated Switchgear

Intuitive industrial and utility protective relay systems for feeders, motors and transformers

Multilin 3 Series

Measurement, Protection and Control

Key benefits

Applications

● Easy-to-use and cost effective protection and control for

feeders, motors and transformers

● Effortless draw-out construction eliminates requirements for

test switches and reduces downtime

● Environmental monitoring system to alarm on destructive

operating conditions to enable preventative maintenance

● Easy-to-use interface and set up in one simple step

● Accelerated Life Cycle Tested to ensure reliability of relay

operation under abnormal conditions

● Advanced power system diagnostics to increase reliability

through fault and disturbance recording capabilities

● Arc Flash mitigation via zone inter-tripping, flex curves and

multiple setting groups

● Advanced protection, monitoring & control relays for feeders

(Multilin 350), motors (Multilin 339) and transformers (Multilin

345)

● Industrial feeders with enhanced breaker monitoring and

diagnostics

● Application flexibility with the use of programmable logic

elements

● Large backlit display with 40 characters for easy viewing of

relay information and settings

● Flexible communications with multiple ports & protocols to

allow seamless integration into new and existing infrastructure

● Easy access to information via multiple communication

network options including USB, Serial, Fiber & Copper Ethernet

● Reduced wiring with support for remote I/O

● Reduce setup and configuration time with the Simplified Motor

Setup screen

● Powerful Security Audit Trail tool to increase security and

minimize system risks by tracking setting changes

● Distribution utility down stream breaker protection

● Medium voltage utility feeders with advanced control features

including, cold load pickup, auto reclose and multiple setting

groups

For more information visit our website: http://www.gedigitalenergy.com/multilin/catalog/3Series.htm

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SecoGear 3.3kV-27kV Air Insulated Switchgear

Features

Metering & monitoring

● Event Recorder: 256 events with 1ms

time stamping

● Oscillography with 32 samples per

cycle and digital states

● IRIG-B clock synchronization

● Relay & Asset Health Diagnostics

● Security audit trail

Protection & control

(for Multilin 350 Feeder Protection System)

● Phase, neutral and ground TOC and IOC

● Undervoltage, overvoltage, frequency

● Neutral/ground directional

● Negative sequence overcurrent

● ANSI, IAC, IEC, flex curves

● Cable Thermal Model protection

● Breaker failure

● Cold load pick-up

● Four-shot auto reclose

● 8 digital inputs, 7 contact outputs

● Two setting groups

User interface and programming

● 4x20 character LCD display

● Control panel with 12 LED indicators

● Front USB and rear serial, Ethernet and

Fiber ports

● Multiple protocols - IEC 61850 & 61850

GOOSE, ModBus™ RTU, ModBus™

TCP/IP, DNP 3.0, IEC 60870-5-104, IEC

60870-5-103

EnerVista™ software

● An industry-leading suite of software

tools that simplifies every aspect of

working with Multilin devices

● Document and software archiving

toolset to ensure reference material

and device utilities are up-to-date

Overview

The Multilin 3 Series of protection relays

are a highly functional, economical

protection relays for feeders, motors and

transformers. By providing an economical

system for protection, control, monitoring

and metering, and both local and

remote user interfaces in one assembly,

the Multilin 3 Series relays effectively

eliminate the need for expensive discrete

components.

The Multilin 3 Series provides detailed

diagnostic information allowing users to

troubleshoot and minimize downtime.

Detailed diagnostics is provided via the

256 1ms time stamped event recorder

and the 192 cycle Oscillography report

sampled at 32 samples per cycle.

The robust Multilin 3 Series streamlines

user work flow processes and simplifies

engineering tasks such as configuration,

wiring, testing, commissioning, and

maintenance. This cost-effective relay

also offers enhanced features such as

diagnostics, preventative maintenance,

device health reports and advance

security features.

Easy-to-use

Drawout construction

The Multilin 3 Series offers a complete

drawout feature eliminating the need for

rewiring after testing has been concluded.

The withdrawable feature also eradicates

the need to disconnect communication

cables, e.g. fiber, copper, RJ45, etc and

helps retain communication status even

after a relay has been withdrawn from its

case.

Advanced communications

Easy integration into new or existing

infrastructure

With several Ethernet and serial port

options, and a variety of communication

protocols, the Multilin 3 Series provides

advanced and flexible communication

selections enabling seamless integration

into new or existing applications.

The Multilin 3 Series supports various

industry standard protocols such as, IEC

61850 & IEC 61850 GOOSE, Modbus RTU,

Modbus TCP/IP, DNP3.0, IEC 60870-5-104

and IEC 60870-5-103.

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SecoGear 3.3kV-27kV Air Insulated Switchgear

350 RELAY

TRIP

BUS

LOAD

3

1

52

CLOSE

50G/51G

50P 50N

79

50G 51G

2 2

2 1

METERING

TRANSIENT RECORDEREVENT RECORDER

51N51P 50_2

1 1 1

49

1

1

27P 59P 27X 59X 59_2 59N 81U 81O

CLP 50BF 79

1 1 1 1 1 1 2 2

MONITORING

BUS VT

Device Number Function27P Phase Undervoltage27X Auxiliary Undervoltage49 Thermal Model50P Phase Instantaneous Overcurrent50N Neutral Instantaneous Overcurrent50G Ground/Sensitive Ground

Instantaneous Overcurrent50BF Breaker Failure50_2 Negative Sequence Overcurrent51P Phase Timed Overcurrent51G Ground Timed Overcurrent51N Neutral Timed Overcurrent59P Phase Overvoltage59X Auxiliary Overvoltage59N Neutral Overvoltage59_2 Negative Sequence Overvoltage67G Ground Directional Overcurrent67N Neutral Directional Overcurrent79 Autoreclose81U Underfrequency81O OverfrequencyCLP Cold Load Pickup

ANSI Device Numbers & Functions

Latched Lockout available as a standard feature

Preventative maintenance

The Multilin 3 Series allows users to track

relay exposure to extreme environmental

conditions by monitoring and alarming

at high temperatures. This data allows

user to proactively schedule regular

maintenance work and upgrade activities.

All relays utilize EnerVistaTM setup

software for communication, monitoring

and metering. Actual values, setpoints,

status, trending, and waveform capture

information may all be viewed via

the software, and can be used for

troubleshooting.

SecurityEnerVistaTM LaunchpadEnhanced diagnostics

User Interface

Protection Features

Security audit trail

The Multilin 3 Series monitors security

and reliability of asset protection. The

Multilin 3 Series protection devices

offer complete traceability of any

relay setting and command changes,

allowing the user to quickly identify

changes made to the relay.

EnerVista™ Launchpad is a complete set of

powerful device setup and configuration tools

that is included at no extra charge with the SR

Relays.

● Set up the Multilin 3 Series Relays - and any

other Multilin device - in minutes. Retrieve

and view oscillography and event data at

the click of a button

● Build an instant archive on any of the

latest Multilin manuals, service advisories,

application notes, specifications or

firmware for your SR Relay

● Automatic document and software version

updates via the internet and detailed e-mail

notification of new releases

● SETPOINT GROUP 1, 2:These indicators are continuously on if corresponding group provides settings for protection elements.TRIP:Indicator turns on when relay detects a trip condition.Operates the trip relay to open the breaker.ALARM:While relay detects an alarm condition, indicator flashes.PICKUP:Indicator lights steady when any protection feature pickup threshold exceeded.

● DISPLAY:4 line text for easy viewing of key data.

● LEDs:10 LED indicators for quick diagnostics.

● KEYPAD:Ten button keypad for access to device interrogation and change of settings.

● FRONT PORT:Electrically isolated front USB communication port.

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SecoGear 3.3kV-27kV Air Insulated Switchgear

Advanced protection,control and monitoring system

Measurement, Protection and Control

Key benefits ● Unique built-in control features - Comprehensive protection

plus programmable logic

● Flexible and cost effective control for complex systems -

Use IEC compatible programmable logic to customize the

functionality of your protection & control system to address

unique, site specific applications

● Human machine interface (HMI) - Standard backlit LCD display

with 4 x 20, optional 16 x 40 (240 x 128 pixels) graphical LCD,

programmable buttons and directional keys for selecting

setting menus and submenus

● Minimize replacement time - Modular with card draw-out

construction

● Reduce troubleshooting time and maintenance costs - IRIG-B

time synchronization, event reports, waveform capture, data

logger

● Cost Effective Access information - Via multiple protocols,

through standard RS232 & RS485 Ethernet Ports

● Optimal integration flexibility via open standard protocols -

Modbus RTU, DNP 3.0 Level 2, IEC 60870-5-104, IEC 61850, IEC

870-5-103

● Minimize communication down time - Reliable redundant

Ethernet Communication ports with 10/100BaseTX, 100BaseFX

with ST connectors and optional double 100BaseFX, with ST

connectors

● Complete asset monitoring - Full metering including demand

& energy

● Follow technology evolution - Flash memory for product field

upgrade

Applications ● F650: Management and primary protection of distribution

feeders and bus couplers

● F650: Backup protection of busses, transformers and power

lines

● G650: Packaged generator mains failure detection

● G650: Distributed generation management device

● G650: Reliable Distributed Generation interconnection

protection system

● W650: Wind turbine protection, control and monitoring

● W650: Distributed generation grid interconnection device

Multilin 650 Family

For more information visit our website: http://www.gedigitalenergy.com/multilin/catalog/F650.htm

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SecoGear 3.3kV-27kV Air Insulated Switchgear

Features

Overview

Protection and control

● Up to 32 Programmable digital inputs

● Up to 16 digital outputs

● Trip Circuit Supervision

● Redundant power supply option

● Configurable PLC logic according to IEC 61131-3

● Fully configurable graphic display HMI interface

● Alarms panel

The Multilin 650 family has been designed

as a comprehensive protection, control,

metering and monitoring package. The

microprocessor based architecture

is a complete solution for different

applications that complies with the most

relevant international standards.

All the elements required for each

application have been integrated into a

single package for a cost-effective, reliable

and simple utilization. The low number of

components, thanks to the use of state-

of-the-art but mature technology, deliver

a very high reliability.

Hardware inputs and outputs have been

designed in a modular way that allow

easy migration from simple to more

complex applications.

The control functions include a full-

scheme virtual PLC with an optional

graphical display. The combination of

both elements provide total control for

a bay. This means real-time monitoring

of breakers and selector switches, open

and close commands supervised by the

programmable interlockings and metering

User interface

● Large graphic (16 x 40) or regular (4 x 20) character display

● Easy-to-use control via Shuttle key

● Front USB port or standard RS232

● Rear wire 10/100BaseTX Ethernet for LAN connection

● Rear wire CAN bus port (OPEN CAN protocol - W650)

● Optional fibre optic 100BaseFX Ethernet, single or redundant

● Optional rear RS485 port

● 1 ready LED and 15 programmable LED indicators

● EnerVistaTM Integrator providing easy integration of data in the

650 relay into new or existing monitoring and control systems

Monitoring and metering

● Energy metering

● Demand metering

● Trip circuit monitoring

● Oscillography

screens.

The metering capability allows 0.5%

accuracy for current and 1% from 10V to

208V for voltage in metering range.

Monitoring functions include a 479

event recorder, and a programmable

oscillography recorder.

The Multilin 650’s communications

capability and option make the product

very unique. These units include

a maximum of three independent

communication ports: COM1, COM2

and COM3, with many physical choices

through the use of two removable plug-

and-play boards.

The brain of the Multilin 650 units includes

a powerful built-in virtual PLC. This PLC

can be programmed according to the IEC

61131-3 language by functional block

diagrams.

650 units come with 8 to 32 digital inputs

and with 8 to 16 outputs depending on

options. All digital inputs may be filtered

with a separate debounce time to tailor

customer requirements.

● Data logger

● Sequence of event

● Self diagnostic

Metering

The Multilin 650 provides the following

metering values.

● Current: Ia, Ib, Ic, In, Ig, Isg

● Phase-to-phase and phase-to-ground

voltage values for bus and line: Van,

Vbn, Vcn, Vab, Vbc, Vca, Vx

● Active power (per phase and total) : Wa,

Wb, Wc, W

● Reactive power (per phase and total) :

VARa, VARb, VARc, VAR

● Power factor (per phase and total)

● Frequency

● These signals are available for local

display and accessible remotely using

communications

Recording functions

The recording functions within the Multilin

650 include:

● Event recorder capable of storing 479

time-tagged events (1 true millisecond

accurate tagging)

● Up to 20 separate oscillography records

can be stored in memory. The capacity

of each record will depend on the type of

oscillo selected (1 Mbyte/Max. No. Osc)

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SecoGear 3.3kV-27kV Air Insulated Switchgear

EN F650 BLOCK F.CDR

22

F650 Digital Bay Controller

RR

METERING

52

3

3

1

1

1

79

51G 67G

67SG

67P

50SG 51SG 50IG

50N 51N 67N59X

27X

59NH

25

3V_0

51PL/V51PH/V

MonitoringCLOSE TRIP

50G

1

50BF1

493

50PH3

50PL3

463

483

32FP3

323

32N3 3

BROKENCONDUCTOR

33 3 3 3 3

3

3

1

3

3

33

593

VTFF1

273

473

3

81O3

81R3

81U3

3 33

59NL3

Device Number Function25 Synchrocheck27/27X Bus/Line Undervoltage32 Sensitive Directional Power32FP Forward Power32N Wattmetric zero-sequence directional46 Negative Sequence Time Overcurrent47 Negative Sequence Voltage48 Blocked Rotor49 Thermal Image - overload protection50 BF Breaker Failure50PH/PL Phase Instantaneous Overcurrent (High/Low)50N Neutral Instantaneous Overcurrent50G Ground Instantaneous Overcurrent50SG Sensitive Ground Instantaneous Overcurrent50IG Isolated Ground Instantaneous Overcurrent51N Neutral Time Overcurrent51G Ground Time Overcurrent51SG Sensitive Ground Time Overcurrent51PH/V Voltage Restraint Phase Time Overcurrent51PL/V59/59X Bus/Line Overvoltage59NH/NL Neutral Overvoltage - High/Low67P Phase Directional Overcurrent67N Neutral Directional Overcurrent67G Ground Directional Overcurrent67SG Sensitive Ground Directional Overcurrent79 Autorecloser81 U/O Under/Over Frequency Broken Conductor

DetectionN/A Load Encroachment81R Frequency Rate of ChangeVTFF VT Fuse Failure Detection

ANSI Device Numbers & Functions

These records are stored in non volatile

memory. Therefore, there is no need

for internal battery monitoring or

maintenance.

Trip circuit monitoring

Multilin 650 units offer as an option two

complete supervision circuits for breaker

trip and closing coils and circuits. These

supervision inputs monitor both the

battery voltage level and the continuity of

the trip and/or closing circuits, applying

current through those circuits and

checking that it flows properly. In order

to apply this feature it is necessary to

choose I/O board 1 option 2.

CommunicationsMultilin 650 units incorporate up to

three ports that operate independently.

Redundant ports are available for high

reliability applications:

Available protocols for rear port 1 and 2

are ModBus RTU, IEC 103 and serial DNP

3.0.

The third port is located in a removable

communications card. This plug-and-

play card can be easily changed in the

future as new standards arrive to the

market, thus providing a migration path

to the customer.

The protocol available for the third port

is DNP 3.0 over TCP/IP, UDP/IP, ModBus

TCP/IP and IEC 60870-5-104.

● Graphic 16 x 40 or text 4 x 20 LCD display

● Fluorescent backlight to improve visibility

● Multicolor programmable LEDs with label panel

● Local/Remote/Off pushbutton with LEDs

● Key control for easy navigation

● Ergonomic programmable keys

● Electrically isolated front USB communication port

User Interface

Functional Block Diagram

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SecoGear 3.3kV-27kV Air Insulated Switchgear

The EnerVistaTM launchpad software is a

powerful toolset used for the complete

support and management of Multilin

products. Support application including

product software, manuals, and setting

files management is used to ensure your

important files are kept up-to-date and

easily accessible. Site Management will

allow you to properly maintain your

asset and devices by providing real-time

diagnostic data and reports.

Viewpoint Engineer is the most advanced

tool for protection & control engineers and

commissioning staff available. Use the

full-featured Graphical Logic Designer to

build and annotate complex Flexlogic™

and then observe it in real-time with the

Graphical Logic Monitor. Use the System

Designer option to design and annotate

IEC61850 communication schemes,

including ICD file import and SCD file

export for non-GE IEDs.

Device setup & document management toolset

Logic, IEC 61850 system configuration and Real-Time monitoring

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SecoGear 3.3kV-27kV Air Insulated Switchgear

Viewpoint Maintenance provides security

auditing, device and asset health reporting

as well as easily accessible fault data.

With a comprehensive security audit

report, changes to the device settings,

including the MAC address, are recorded

enabling compliance with NERC / Critical

Infrastructure Protection Standards.

Device and Asset status reports detail

current and historical health for both the

intelligent protection device and the asset

being protected.

Viewpoint Monitoring provides simplified

visualization of real-time data from all

GE Multilin using ready-made Plug-and-

Play screens. Built-in data logger, alarm

annunciator and time synchronization

round out this HMI package. Third-party

devices can be incorporated using either

generic Modbus RTU or Modbus TCP/IP or

IEC61850 and optional OPC/DDE server

connectivity can link to existing facility

DCS or SCADA systems.

Seamless integration of GE Multilin and

generic Modbus devices into existing DCS,

SCADA systems and other data consumer

applications (data historians, data

visualization tools) using standard open

OPC/DDE connectivity.

Security auditing, device and asset health reporting and fault data retrieval

Easy-to-Use monitoring and data recording

OPC connectivity to automation and historian applications

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SecoGear 3.3kV-27kV Air Insulated Switchgear

Switchgear CompartmentVacuum Circuit Breaker . . . . . . . . . . . . . . . . . . . . . . 44

CT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

VT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Earthing Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Cable Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

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SecoGear 3.3kV-27kV Air Insulated Switchgear

Vacuum Circuit Breaker

SecoVac VB2 Plus of Modular design

SecoVac VB2 Plus embedded pole vacuum circuit breaker 7.2kV, 12kV and 17.5kVSafety, more reliability and High performance in a compact package

Industry leading vacuum and solid insulation technology

● Fixed and withdrawable versions available

● Environmentally friendly design - no SF6 gas

● Conformance to the latest IEC standards - IEC 62271-100

and IEC 62271-1

● Numerous safety features for maximum personnel

protection

● User friendly operation with easy access and minimal

inspection

● Compact and cost effective

● Flexible with a full line of accessories and OEM Solution

● Serving global 50 Hz and 60 Hz

● Segments of the electrical industry: industrial, commercial,

utility, mining, marine and off-shore

● Protecting transformers, capacitor banks, motors, busbar

sections and cables

● Suitable for special environment conditions: shock, vibration

and high ambient temperature

Features and benefits Applications

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SecoGear 3.3kV-27kV Air Insulated Switchgear

Circuit Breaker Characteristics

Main circuit resistance of SecoVac

Coil Characteristics

Motor Characteristics

Rated Voltage kV 7.2 12 15 17.5 24 27

Rated power frequency withstand (1min) kV 20 28 36 38 50 65

Rated lightning frequency impulse withstand voltage(1.2/50μs) kVp 60 75 95 95 125 125

Rated Frequency Hz 50/60 50/60

Rated Current A 630/1250/1600/2000/2500/3150/4000* 1250, 2500

Rated short-circuit breaking current kA 25/31.5/40 31.5

Percentage of DC component   Up to 50% 52%

Rated short-circuit closing current kAp 65/82/104 82

Rated short time withstand current kA 25/31.5/40 31.5

Rated peak value withstand current kAp 65/82/104 82

Rated duration time for short-circuit s 3 3

Opening Time ms 20~50 20~50

Closing Time ms 30~70 30~70

Rated auxiliary control voltage V 36/48/60/110/220 V DC 110/220 V AC

Operation sequence   O-0.3s-CO-180s-CO/ O-0.3s-CO-15s-CO O-0.3s-CO-15s-CO

Mechanical life operations Quantity 10,000 (M 2) 10,000 (M 2)

Electrical Endurance class   E2 E2 (list 1)

Single capacitor bank Switching current A 400 400

Rating for Earthing Switch short time withstand current 31.5kA 1s

* Force cooling.

Item Unit Value

Rated Current A 1250~1600 2000~4000

Resistance μΩ ≤ 45 ≤ 25

Rated voltage (V)

Rated current (A)

Rated voltage (V)

Rated current (A)

Rated voltage (V)

Rated current (A)

DC36 11.5 DC48 8.4 DC60 11.5

DC110 2.9 DC220 1.5    

AC110 2.9 AC220 1.5

Rated voltage (V)

Normal operation voltage scope

Energy staring period under rated operation voltage (s)

Input power (W)

DC125 85%~110% <10s 150

DC110 85%~110% <10s 150

DC220 85%~110% <10s 150

AC110 85%~110% <10s 150

AC220 85%~110% <10s 150

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SecoGear 3.3kV-27kV Air Insulated Switchgear

S9

512221

44S522 S5

4321

13

14

11

1250 4914 48 58 56

81

82S514

13

S5

14S8 S8

34 24 S8

13 33 23

S854

53

2434

33 23

S9 54

53

S9 S9

2 474 57 55

36 34 35 20

(21)(13)(21)

S3(14)S3(22) S1(22)

(52)(51)

V1

2426 25

V2

Spring Charge Motor Closing Circuit

10

53 54 31 32

S84443

44 S943

371513 1917 33 3938

S4

S5(74)S5(54)

(2)(5)

(3)K0

(53)

S5

(73)

(12)

(11)S5

(13)(14) S2

CCK0

TC

6472 624232

4131 6371 618424 34

8323 33S5

V4 V3

Breaker Interlock Circuit

52

Opening Circuit

30 273 5 97 23 2928

92

9194

93

16

6

18

8

40

Truck Interlock Circuit

1

M BC

A~

D~

2

1

C+ B-

ZC

V5

Y4

Internal wiring diagram (AC) 17.5kV

S9: Limit switch (working position) CC: Closing coil KO: Anti-pumping relay (optional)

S8: Limit switch (testing position) TC: Trip coil BC: Electromagnet for locking (optional)

S4: Electromagnet for locking's auxiliary switch M: Spring Charge Motor ZC: Electomagnet for locking truck (optional)

S5: Auxiliary switch V1~V4: Rectitier

S1~S3: Energy storing travel switch

Note:1. This wiring diagram describes that a breaker is open, racked to test position with spring in discharge state.2. The polarity in dashed frame should be connected to common DC voltage terminal.3. Rectifier will be removed if DC is applied.

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SecoGear 3.3kV-27kV Air Insulated Switchgear

Internal wiring diagram (AC) 17.5kV

S9: Limit switch (working position) CC: Closing coil KO: Anti-pumping relay (optional)

S8: Limit switch (testing position) TC: Trip coil BC: Electromagnet for locking (optional)

S4: Electromagnet for locking's auxiliary switch M: Spring Charge Motor ZC: Electomagnet for locking truck (optional)

S5: Auxiliary switch V1~V4: Rectitier

S1~S3: Energy storing travel switch

Note:1. This wiring diagram describes that a breaker is open, racked to test position with spring in discharge state.2. The polarity in dashed frame should be connected to common DC voltage terminal.3. Rectifier will be removed if DC is applied.

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SecoGear 3.3kV-27kV Air Insulated Switchgear

Current Transformer

Current transformers are cast in resin, and

totally enclosed. This provides superior

protection against pollutants and moisture.

It can be equipped with one or more

independent magnetic cores with equal

or different characteristics for measuring,

metering and protection purposes.

Current ≤ 1250A the CT type is LZZB-17

150A1 or A4

Current > 1250A the CT type is LMZB1-17

Ground Fault Sensing CT

It is of the type insulated in resin and

is used to supply measurement and

protection devices. These CTs can be

furnished in either a solid or split core

design. They can be used either for

measuring phase currents or for detecting

the earth fault current. They conform to

the IEC 60044-1 Standards.

CT type: LMZC

Voltage Transformer Truck

The withdrawable trucks also allow

replacement of the fuses with the

switchboard in service. Truck racking-

out with the door closed automatically

operates closure of a metallic segregation

shutter between the live parts of

the switchgear and the instrument

compartment.Voltage Transformer

Voltage transformers are cast in resin,

and totally enclosed. This provides

superior protection against pollutants

and moisture. It can be equipped with

one or more independent magnetic cores

with equal or different characteristics

for measuring, metering and protection

purposes.

17.5kV 27kV

VT type: VT type:

JDZ17-15A

JDZX11-15C

Fuse type: Fuse type:

XRNP 17.5/1A

Recommended CT

Primary Current

Type RatioAccuracy

ClassProtection

Class

50A 25kA/3s

LZZB-17 500

500/5A0.5 or 0.5s

5P or 10P0.2 or 0.2s

500/1A0.5 or 0.5s

5P or 10P0.2 or0.2s

500-250/5A0.5 or 0.5s

5P or 10P0.2 or 0.2s

500-250/1A0.5 or 0.5s

5P or 10P0.2 or0.2s

1000A 25kA/3s

LZZB-17 1000

1000/5A0.5 or 0.5s

5P or 10P0.2 or 0.2s

1000/1A0.5 or 0.5s

5P or 10P0.2 or0.2s

1000-500/5A0.5 or 0.5s

5P or 10P0.2 or 0.2s

1000-500/1A0.5 or 0.5s

5P or 10P0.2 or0.2s

3000A 25kA/3s

LZZB-17 3000

3000/5A0.5 or 0.5s

5P or 10P0.2 or 0.2s

3000/1A0.5 or 0.5s

5P or 10P0.2 or0.2s

3000-1500/5A0.5 or 0.5s

5P or 10P0.2 or 0.2s

3000-1500/1A0.5 or 0.5s

5P or 10P0.2 or0.2s

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SecoGear 3.3kV-27kV Air Insulated Switchgear

Earthing Switch

The earthing switch can be operated from

the front of the switchgear. It is mechanically

interlocked with the circuit breaker truck so

that the earthing switch can only be operated

when the circuit breaker is open in the Test/

Disconnect position as well. The switch is

also mechanically interlocked with the cable

compartment for additional safety.

Earthing switch characteristics

Specification Unit Data

Rated voltage kV 7.2/12/15/17.5 24 27

Rated Work frequency withstand voltage (1min) in open condition of switch kV 20/28/36/38 50 65

Rated Lighting impulse withstand voltage (peak value) in open condition of switch kVp 60/75/95/95 125 125

Rated short-time withstand current (3s) kA 31.5 31.5

Rated peak value withstand current kAp 82 82

Rated short circuit making current kAp 82 82

Centre distance between phases mm 170 170

Electric endurance class   E1 E1

Mechanical endurance Operators 2000 2000

The switchgear units have been tested according to IEC 62271-200:2003 for the

following Internal Arc Classification. The SecoGear have pass type test IAC AFLR 40kA/1s

for 17.5kV, 31.5kA/1s for 27kV with skirt as below, the minimum height of room is 4m.

Resistance to Internal Arc Faults(Arc skirt for optional)

800 8003100

500

2200

8002180

800 8003100

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SecoGear 3.3kV-27kV Air Insulated Switchgear

Cable Connection

The cable compartment contains current

transformers, voltage transformers (fixed),

withdrawable, and earthing switch,

depending on the individual operating

requirements.

The cable compartment is constructed for

installation of three current transformers.

When all the three current transformers

are not required, dummies can be installed

in their place to maintain the same

installation and connection procedures.

The fixed voltage transformers (optional)

are connected on the primary side

with busbar and fitted with HRC fuses.

The earthing switch can be operated

by manual, with position indicated by

mechanical indicator on the driveshaft

and the auxiliary switch. Three surge

arrestor (optional) can be mounted in the

space available.

Rated voltage Panel width Max. number of parallel cables

Max. cross section of

cables

Range of cable clamp

Range of reducer ring

(kV) (mm) per Phase (mm2) (mm) (mm)

7.2/12/15/17.5

650 6

630 35-54 27-62800 6

1000 6

Gear door lock’s key Rack handle for truck Earthing switch handle

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SecoGear 3.3kV-27kV Air Insulated Switchgear

Installation Guide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

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SecoGear 3.3kV-27kV Air Insulated Switchgear

Control Cable Duct

Power Cable Duct

SecoGear P/V-17

800

1500

2500

n*650/800/10001200 1200

Control Cable Duct

SecoGear P/V-17 1500

800Power Cable Duct

Installation Guide

In order to obtain an optimum installation sequence and ensure

high quality standards, site installation of the switchgear should

only be carried out by specially trained personnel, or supervised

and monitored by qualified personnel, or by personnel supervised

and monitored by responsible persons.

On commencement of installation on site, the switch-room

must be fundamentally finished, provided with lighting and the

electricity supply, lockable, dry and with facilities for ventilation,

It is also required that the basic frame and indoor ground

of substation should be checked and accepted before the

construction, It must be ensure that the ceiling height is sufficient

for the opening travel of the pressure relief plates and clearance

for exhaust.

Tolerances for laying the floor frame are:

Evenness tolerance: ± 1mm within a measuring length of 1m,

Straightness tolerance: 1mm per 1m, but not more than 3mm

over entire length of frame.

Panel layout for switchgear arrangement

17.5kV 27kV

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SecoGear 3.3kV-27kV Air Insulated Switchgear

Switch room cable duct arrangement

400 250

1400

40

1360

280

210

760

250 30

1400

70

800

Control Cable Duct

Power Cable Duct

Basic Frame

150

550 250

1400

40

1360

280

210

760

250 30

1400

70

800

Control Cable Duct

Power Cable Duct

Basic Frame

150

750 250

1400

40

1360

280

210

760

250 30

1400

70

800

Control Cable Duct

Power Cable Duct

Basic Frame

150

17.5kV

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SecoGear 3.3kV-27kV Air Insulated Switchgear

Switch room cable duct arrangement

27kV

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SecoGear 3.3kV-27kV Air Insulated Switchgear

800 300 760

150

800 1500

70 1400 30

280

380

2200

Power Cable Duct 800*1000

3~5mm above ground

±0.0m

Figured steel plate (t=5mm)

-0.25m

Top Curface of basic frame

Strap of control cable duct

Control Cable Duct 250*250

Basic Frame

Cross section view of switchgear room layout

17.5kV

17.5kV

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SecoGear 3.3kV-27kV Air Insulated Switchgear

1400

1330350

30

6-14x28

70

70200

545650

A B C

Control CablePower Cable

Detail of switchgear cable access cutout

Width A 650 800 1000B 400 550 750C 470 620 820

Width A 650 800 1000B 400 550 750C 470 620 820

17.5kV

27kV

Page 63: 3.3kV-27kV Air Insulated Switchgear - Promelsa.com.pe

You may be interested in other MV Seco-family productsFor more information, please visit www.geindustrial.com

Page 64: 3.3kV-27kV Air Insulated Switchgear - Promelsa.com.pe

GE Energy

Printing Code: IN201201B29EN

© Copyright GE Industrial Solutions 2012

For more information, please visitwww.geindustrial.com

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