tgp145 hv gas insulated switchgear (gis) -...

TGP145 HV GAS INSULATED SWITCHGEAR (GIS)

Energy, Fast!

tgood.com

2 TGP145 HV Gas Insulated Switchgear www.tgood.com

PRODUCT OVERVIEW

High performance alternative to air insulated systems.

Best-in-class lead times measured in weeks, not months.

Immune to harsh environmental conditions.

Sealed GIS is safe to touch and inherently arc-resistant.

Compact factory-pressurized modules save space and reduce cost compared to traditional GIS.

May be pre-assembled within a prefabricated E-House or mobile trailer-mounted substation.

TGOOD produces over 5000 switchgear units annually for projects around the globe

3TGP145 HV Gas Insulated Switchgear

KEY BENEFITS

PROVEN APPLICATIONS

Compact design ideal for space-constrained projects in crowded cities and congested industrial zones.

Outstanding performance in harsh environments, including high altitude, heavily polluted, coastal, desert and arctic sites.

Low audible noise and electric field emissions make this product attractive for densely populated areas.

MODULAR DESIGN

Standard configurable modules allow reduced lead times for any customer arrangement.

Fully assembled, pressurized and tested in the factory.

Modules can be energized within 24 hours of delivery.

Significant cost savings over traditional GIS solutions.

SAFE, RELIABLE, AND LOW-MAINTENANCE

Grounded tank design is safe to touch.

Completely arc-resistant.

Modules connected with gas-tight flanges, delivering decades of reliable operation.

Modules individually configured and tested within an ISO 9001 factory environment.

Corrosion-free aluminum housings ensure safe encapsulation of factory-filled SF6 gas.

Simple gas filling requires top-up with SF6 bottles only; no complex gas processing equipment required.

Compact modules require no special shipping considerations.

The circuit breaker module is comprised of two interconnected structures: the stored-energy spring mechanism and the current interrupting unit.

PRODUCT DESIGN

CIRCUIT BREAKER1

2

1. Circuit Breaker Module: Integral Components2. Spring Operating Mechanism Assembly

5TGP145 HV Gas Insulated Switchgearwww.tgood.com

1. Arcing Contact (Fixed)2. Main Contact (Fixed)3. Nozzle4. Arcing Contact (Moving)5. Main Contact (Moving)6. Contact Cylinder7. Thermal Expansion Chamber8. One-Way Valve9. Pressure Relief Valve10. Pressure Relief Spring

CURRENT INTERRUPTING UNIT

Two separate current-carrying contact paths for each current interrupting unit; main contacts disconnect first and connect last to minimize arcing damage.

During a short circuit, arc-generated thermal pressure assists the spring operating mechanism to quickly pull contacts apart.

Arc-quenching design provides exceptional durability by minimizing mechanical stresses on circuit breaker components.

STORED-ENERGY SPRING MECHANISM

Provides force to efficiently and reliably open and close the circuit breaker.

Compact layout allows for straightforward viewing of spring mechanism position.

Sealed bearings and maintenance-free charging mechanism deliver decades of problem-free operation.

Spring Operating Mechanism

1

23

4

56

78910

6 TGP145 HV Gas Insulated Switchgear

THREE POSITION SWITCH

Single three-position switching module incorporates both isolation and earthing functions.

Position indicators allow visual inspection of switch position.

SEALED THREE PHASE BUS

Sealed connection modules available in a variety of configurations to enable GIS arrangements according to any customer requirement.

Bellows-type expansion joints between modules mitigate the effect of temperature-related changes and allow for practical site assembly tolerances.

CURRENT AND POTENTIAL TRANSFORMERS

Current transformers and potential transformers provide key measurement and system protection functions.

Three-phase CT and PT modules can be positioned at any point within the GIS system.

Wide range of protection and metering classes available.

HIGH-SPEED EARTHING SWITCH

Maintenance-free electric motorspring mechanism delivers fast and reliable operation.

Arc-resistant contacts enable use in transmission line grounding applications.

LIGHTNING SURGE ARRESTORS

Provides protection from excessive voltages that may occur in case of a lightning strike or switching transient.

Online monitoring and surge-count with the use of integrated current sensors.

SF6 OUTDOOR BUSHINGS

Suitable for outdoor termination to overhead lines and transformer bushings.

CABLE TERMINAL UNITS

Allows for the connection of typical high-voltage cable types to the GIS system.

LOCAL CONTROL CABINET

Provides central control and monitoring of the GIS system, including operation control, signal collection, relay protection, and SF6 monitoring.

SF6 Outdoor BushingsCurrent Transformer Structure Three Position Switch


Item Unit Specification

Rated Voltage kV 145

Rated Current (breaker/busbar) A 3150/4000

Withstand Voltage (phase-to-ground/phase-to-phase) kV (1 min) 275/315

Lightning Impulse Voltage (phase-to-ground/phase-to-phase)

kV Peak 1.2/50μs 650/750

Short-time Withstand Current kA (3s) 40

Peak Withstand Current (50Hz/60Hz) kA 100/104

SF6 Pressure at 20°C (filling pressure/minimum pressure) mPa 0.6/0.5

SF6 Leakage %/year ≤ 0.1

Rated Operating Sequence o-0.3s-co-180s-co

Corona Extinction % 110

Partial Discharge (interval) pC ≤ 5

Lifetime Ratings

Breaker (mechanical) open/close > 10,000

Breaker (electrical) short circuit trip 20

Three Position Switch open/close > 3,000

Quick Action Earthing Switch open/close > 5,000

Item Units Specification

Operating Environment Indoor/Outdoor

Ambient Temperature °C -25 to +40

Elevation metres above sea level ≤1,000

Relative Humidity % ≤ 90% Monthly Average≤95% Daily Average

Seismic Intensity G Horizontal Acceleration: ≤ 0.4G; Vertical Acceleration: ≤ 0.2G

PRODUCT SPECIFICATIONS

ENVIRONMENTAL SPECIFICATIONS


Modular HV GIS Substation


C B A

Transformer 2A B C

C B A

Transformer 1A B C

Feeder 1Feeder 2

A

B

TPS

CT

CT

GCB

TPS

ES

BUS

C

TPS

LCC

Typical Transformer Branch Connection

5600

3250

Bus Coupler


SINGLE BUS LAYOUT

Bus coupler design facilitates system upgrades and allows the Substation to continue operation while expansions takes place. Flanged connections on the GIS modules allows for the safe and straight-forward addition of additional modular components as required.

15000

15000

C

B

A

C

B

AC

B

A

B

A

TPS TPS

TPS

TPSTPS

TPS

LCC LCC LCC LCC LCC LCC

BUS: Main Busbar

CT: Current Transformer

ES: Earthing Switch

FES: Fast Earthing Switch

GCB: Gas Insulated Circuit Breaker

LCC: Local Control Cabinet

TPS: Three Position Switch

All Units in Millimetres

LEGEND

6750

6750


Bus 2Bus 1

Feeder 1 Feeder 2Transformer 1 Transformer 2

DOUBLE BUS LAYOUT

Critical load centers and power generation facilities commonly use a double bus GIS configuration. The two busbars can be operated separately or tied together. Double bus configurations can reduce the short circuit current, extend the standard maintenance period, and enhance power supply reliability.

Typical Feeder Branch Connection

LCC

2000

6630

TPS

TPS

FES

CTUGCB

CT TPS

Bus Coupler

7200


ESES

LCCLCCLCCLCCLCCLCCLCC

TPSTPSTPSTPSTPSTPSTPS

BUS: Main Busbar

CTU: Cable Terminal Unit


ES: Earthing Switch






LEGEND


B CA

B CA B CATransformer 1 Transformer 2

Feeder 1B CA

Feeder 2

2220

7550

TPSTPS

ES

TPS

FES

TPSCT

GCBCTBUS

Typical Bus Coupler Branch Connection

BUS TIE LAYOUT

Bus ties are commonly utilized in congested industrial and residential areas. Two high voltage incoming lines with two step-down transformers ensure a highly flexible and reliable power supply.

Bus Coupler


1040010

550

TPS

TPS

TPS

ES

TPS TPS

ES

TPS

TPS

TPS

TPS

TPS

TPS

LCC LCC LCC LCC LCC

BUS: Main Busbar


ES: Earthing Switch






LEGEND

TGOOD Global Ltd.Unit B, 8/F, Shun Ho Tower, 24-30 Ice House Street, Central, Hong Kong

Tel: + 852 2393 8005 Fax: + 852 2393 [email protected]

TGQDMK400010

www.tgood.com

tgp145 hv gas insulated switchgear (gis) -...

Documents