lisa - lbt
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LISAAir-insulated Switchgear Solutions for OEM Manufacturing12kV, …31.5kA, …2500A
1. Enclosure2. Low voltage compartment3. Circuit breaker compartment4. Shutter5. Vacuum circuit breaker6. Door lock7. Door handle8. Inspection window9. Cable compartment10. Earthing switch11. Current transformer12. Fixed contact insulator13. Busbar system14. Bushing15. Overpressure flap
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1. Enclosure2. Low voltage compartment3. Door lock4. Circuit breaker compartment5. Door handle6. Shutter7. Inspection window8. Vacuum circuit breaker9. Cable compartment10. Earthing switch11. Fixed contact insulator12. Current transformer13. Busbar system14. Bushing15. Overpressure flap
LIS�� is a family of air�insulated medium voltage switchgearIS�� is a family of air�insulated medium voltage switchgear
solutions for indoor installations.
It is designed for worldwide applications and high operating
safety.
Design
. Depending on the design all compartments are accessible from
the front. ��lternatively the cable compartment is accessible from
the rear. . Cable connection points at comfortable height of up to 900mm.. Pressure resistant inspection windows for cable and circuit
breaker compartments.. Typicals with top�entry for cables or bus bars available.. Created for straight forward manufacturing: No welding, truing,
grinding and cleansing procedures required.. Segregated busbars from panel to panel.. Optional arc venting shields or gas exhaust duct available.
Safety
. Fully type tested including internal arc tests according to
IEC 62271�200(I��C classified: ��FLR, 31.5k��/1s).. Mechanical interlocks and padlocks.. ��ll switching operations can be performed with the doors closed.. Metallic shutters automatically protect the high voltage parts
when the circuit breaker is withdrawn.
Characteristics
Switchboard manufacturers are facing the challenge of providing
their customers with high quality, fully type tested switchgear
solutions at reasonable costs. Design and testing state of the art
medium voltage switchgears becomes more and more expensive. To
assist switchboard manufactures Tavrida Electric has developed and
type tested a range of switchgear solutions.
The solutions are available in two different options:
Complete Solution
Completely factory�assembled and routine tested switchgear panel
(primary part):
Complete metal structure, doors, interlocks, bushings, fixed contact
insulators, support insulators, shutter mechanism, vacuum circuit
breaker, earthing switch (optional) and copper bars (optional).
��dditional required components:
Transformers, control components and wiring.
Technical License
Licenses providing the necessary information and authorisation to
manufacture and assemble in own factory:
Manufacturing drawings, bushings, fixed contact insulators,
support insulators, earthing switch, shutter mechanism, vacuum
circuit breaker, list of components to be ordered from third
parties.
Concept
LIS�� panels with arc venting duct
ISMD � withdrawable Vacuum Circuit Breaker from Tavrida Electric
Data with technical information
Enclosure
The enclosure is made of corrosive resistant hot dip galvani�ed steelhe enclosure is made of corrosive resistant hot dip galvani�ed steel
sheets. Its design allows fast assembly with bolts only. No welding,
truing, grinding or cleansing is necessary. No jigs are required for
assembly.
Each panel is equipped with sidewalls. The special design provides
an 8mm air gap between two neighbouring panels. In the unlikely
event of an internal arc, this design assures that the damage is
limited to the panel where the fault occured.
Doors
The coated doors are made from galvani�ed sheet steel. Robusthe coated doors are made from galvani�ed sheet steel. Robust
hinges and handles provide for convenient and safe closing. The
closing mechanisms are available for left or right hand operation.
Rounded edges guarantee safe handling
Properly designed labyrinths as
well as additional steel sheets
provide maximum operator
safety in case of internal arc
fault
Housing
Each panel consists of three power compartments:ach panel consists of three power compartments:. busbar compartment (1). cable compartment (2). circuit breaker compartment (3). the instrument compartment (4).
Busbar compartment
The busbar compartment houses the main busbar system connectedhe busbar compartment houses the main busbar system connected
to the fixed upper isolating contacts of the circuit breaker by means
of branch connections. The main busbars are made of electrolytic
copper. The busbar compartment of each panel is segregated from
the busbar compartments of the neighbouring panels.
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Compartments
LIS�� � F��3 (Front access)
Cable compartment
The cable compartment houses the connection of the power cableshe cable compartment houses the connection of the power cables
to the busbar. ��dditionally the earthing switch, surge arresters,
voltage and current transformers can be installed. The compartment
is closed with a metallic bottom plate.
Circuit breaker compartment
The circuit breaker compartment houses the bushing insulatorshe circuit breaker compartment houses the bushing insulators
containing fixed contacts for the connection of the circuit breaker with
the busbar and the cable compartment. The bushings are single�pole
type and are made of cast resin. They are covered by metallic shutters.
The metallic shutters operate automatically during movement of the
circuit breaker from the racked�out position to the service position
and vice versa.
The position of the circuit breaker can be seen from the front of the
panel through an inspection window.
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LIS�� � R��4 (Rear access)
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Make�proof earthing switch
Equipment
Earthing switch
Each feeder compartment can be equipped with an earthing switchach feeder compartment can be equipped with an earthing switch
for cable earthing.
When installed in measurement, bus�tie or bus riser panels it can
also be used to earth the busbar system.
The earthing switch has short circuit making capacity. The position
of the earthing switch can be seen by means of mechanical position
indication and in addition through an inspection window.
Interlocks
The switchgear is fitted with all interlocks needed to guarantee thehe switchgear is fitted with all interlocks needed to guarantee the
highest level of safety for operators. ��ccording to IEC 62271�200
the interlocking devices prevent
. closing of the circuit breaker in an intermediate position
. racking�out of the circuit breaker in closed position
. racking�in of the circuit breaker in closed position
. opening of the circuit breaker compartment door as long as the
circuit breaker is not in test position.
Interlock for circuit breaker compartment door
In addition if the panel is equipped with an earthing switch the
interlocking devices prevent
. racking�in of the circuit breaker with the earthing switch closed
. closing of the earthing switch when the circuit breaker is in
connected or intermediate position. opening of the cable compartment door with the earthing switch
open
Padlocks
Each door can be locked in its closed position by means of padlocks.ach door can be locked in its closed position by means of padlocks.
The operations for circuit breaker racking�in/out and earthing switch
opening/closing can be prevented by applying the padlocks to the
corresponding insertion slots.
The metallic shutters can be locked by means of two independent
padlocks in both the open and closed positions.
Swinghandle locks on the doors provide additional safety
Interlock for cable compartment door
Vacuum circuit breaker
LIS�� switchgear solutions are equipped with Tavrida Electric�sIS�� switchgear solutions are equipped with Tavrida Electric�s
advanced vacuum circuit breaker ISM. Tavrida Electric has
simplified the mechanical structure of the circuit breaker to the
greatest possible degree. It uses three single�coil magnetic
actuators, one per pole. ��ll switching elements are assembled along
a single axis. ��ll mechanical movements are therefore direct and
linear. The three actuators are mounted in a steel frame and are
mechanically linked by a synchroni�ing shaft.
Completely avoided is failure of critical components such as
. mechanical latching
. gears, chains, bearings and levers
. tripping and closing coils
. motors to charge springs
The result is up to 150,000 C�O cycles at rated current or up to 100
operations at full short circuit breaking current without the need
to replace or adjust any parts. Tavrida Electric´s vacuum circuit
breakers are maintenance free over the total life expectancy of
at least 25 years.
Low duty circuit breaker
High duty circuit breaker
Instrument transformers
The panel is designed to be equipped with current transformers forhe panel is designed to be equipped with current transformers for
measurement an protective purposes, toroidal current transformers
and voltage transformers according to the dimensions of DIN 42600.
For other transformers the panel can be adapted on request.
Power cables
Up to a maximum of 6 cables per phasep to a maximum of 6 cables per phase can be used depending
on the unit dimensions and the cable cross�section. ��ccess to the
cables is provided either from the front or from the rear. The
cables enter the panel from the bottom. Optional top entry design
is available.
Surge arresters
In the cable compartment space is provided for three fix mountedn the cable compartment space is provided for three fix mounted
surge arresters to protect the equipment from switching overvoltages.
Surge ��rresters from Tavrida Electric
Indoor support type current transformer and voltage transformer
Connected power cable to the feeder busbar
Availability and partition
LIS�� switchgears are designed in compliance to availability classes
LSC2B and partition class PM according to IEC 62271�200.
The switchgear compartments do not need any tools for opening.he switchgear compartments do not need any tools for opening.
Interlocks allow access only when the corresponding high voltage
parts are dead and earthed. Metallic shutters and partitions
segregate the compartments from each other. When a compartment
is opened all other panels in the installation and all cable
termination compartments (including that in the panel concerned)
remain in operation.
Type tests
LIS�� switchgear solutions are all fully type tested according toIS�� switchgear solutions are all fully type tested according to
IEC 62271�200:
· Short time and peak withstand current
· Temperature rise and main circuit impedance
· Dielectric test on main and auxiliary circuits
· Making and breaking capacity of the circuit breaker within the
panel
· Earthing switch making capacity
· Mechanical operations
· Internal arc fault (I��C classified: ��FLR, 31.5��/1s)
Internal arc fault test, 31.5k��/1s
Type test reports
* For installations at altitudes higher than 1000 m, the insulation withstand level of external insulation
at the service location has to be determined by multiplying the rated insulation levels by a factor Ka in
accordance to IEC 62271�1.
Rated voltage (Ur) 12kV
Rated power frequency withstand voltage (Ud) 28kV (42kV on request)
Rated lightning impulse withstand voltage (peak) (Up) 75kV (95kV on request)
Rated short�circuit breaking current (Isc) to 31.5k��
Rated peak withstand current (Ip) to 82k��
Rated short�time withstand current (Ik) to 31.5k��
Rated duration of short circuit current (tk) 4s
Internal arc withstand current, 1s 31.5k��
Rated frequency 50/60H�
Rated busbar current 2500��
Rated feeder current 630��, 1250��, 1600��, 2000��
Standards IEC 62271�200
Degree of protection (RC 630��, 1250��) IP4X
Degree of protection (RC 1600��, 2000��) IP3X
Temperature range �25…+40
Maximum relative humidity 95%
Maximum altitude 1000m a.s.l.*
Rated data
Standard
��ccessories
��lternative Solutions
IF IF top entry BT BR M DIF
IF : Incoming/outgoing feederBT : Bus�tieBR : Bus�riserM : MeasurementDIF : Direct incoming/outgoing feederIF top entry : Top entry incoming feeder
Typical units
This document is copyright and is intended for users and distributors of Tavrida Electric product. It contains information that is the intellectual property of Tavrida Electric and the document, or any part thereof, should not be copied or reproduced in any form without written permission from Tavrida Electric.
Tavrida Electric applies a policy of ongoing development and reserves the right to change product without notice. Tavrida Electric does not accept any responsibility for loss or damage incurred as a result of acting or refraining from action based on information in this Product Guide.
LISA
PG
EN
03/
2009
South AfricaTavrida Electric ��frica (Pty) Ltd.Cnr.Van Dyk and Commissioner StreetsBoksburg East, Gauteng, Republic of South ��fricaPhone: + 27 11 9142199Fax: + 27 11 9180584E�Mail: [email protected].�aWeb: www.tavrida.co.�a
ChinaTavrida Electric (Beijing) Co., Ltd.First Floor West, Building 11, No. 28 Yuhua Road, ��rea B, Beijing ��irport Industrial Zone, 101300 Beijing, ChinaPhone: +86 (10) 8049 2474/5474Fax: +86 (10) 8049 7114E�Mail: [email protected]: www.tavrida.cn
GermanyTavrida Electric ��GWetterkreu� 3, 91058 ErlangenGermanyPhone: + 49 (0) 9131 972079�0Fax: + 49 (0) 9131 972079�9E�Mail: [email protected]: www.tavrida.de
SwitzerlandTavrida Electric ��GRheinweg 7, 8200 SchaffhausenSwit�erlandPhone: + 41 (0) 52 625 0315Fax: + 41 (0) 52 625 2035E�Mail: [email protected]: www.tavrida.ch
IndiaTavrida Electric India Private Limited15 NC, Block���, New ��liporeKolkata � 700 053, West Bengal, IndiaPhone: +91 33 2488 1715/3260 8634Fax: +91 33 2488 1766E�Mail: [email protected]: www.tavrida.in
AustraliaTavrida Electric ��ustralia Pty Ltd.Unit 26, 59�61 Frankston Gardens Dr.Carrum Downs Victoria 3201��ustraliaPhone: +61 3 97708918Fax: +61 3 90119681E�Mail: [email protected]: www.tavrida.com.au