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HV Switchgear

Gas Insulated Switchgear

In order to guarantee more reliable and stable operation of electric equipment for indoor or outdoor substations, GIS acts as an integrated switchgear that monitors, controls, protects and measures the power systems with protection & control relay panels by safe opening or closing the power lines under the conditions of normal and abnormal operations.
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    25.8 / 36 72.5 145 170 245 362 420
Rated Voltage kV, rms 25.8 36 72.5 145 170 245 362 420
Rated short time current

kA,rms

25/40 40 20 31.5 40 50 40 50 50 63 50
Rated short time sec 3 3 1 3 3 1 3 3 1 1 3
Rated breaking current

kA,rms

40 40 20 31.5 40 50 40 50 50 63 50
Rated current A,rms ~3150 1250
/2000
2000 ~3150 1250.2000,
3150,4000
Up to 3150 Up to 3150   4000        Up to 6300 4000
Rated Frequency Hz 50/60 50 60 50/60 50/60 60 50/60 50 60 60 50
Rated making current

kA,peak

100 50/100 50 79 100/104 130 104 130 130 164 125
Rated breaking time Cycle 3 2
Power
Frequency
Withstand
Voltage
Common kV,rms 70 70 140 275 325 460 520 650
Across the
Insulating
distance
kV,rms 77 80 160 315 375 530 675 815
Lightning
Impulse
Withstand
Voltage
Common kV,peak 150 170 325 650 750 1050 1175 1425
Across the
Insulating
distance
kV,peak 165 195 375 750 860 1200 1175 1425(+200)
Rated operating sequence - O-0.3sec-CO-3min-CO
Phase
Arrangement
Busbar - 3Phase
Encapsulate
3Phase
Encapsulate
2Phase
Encapsulate
3Phase
Encapsulate
3Phase
Encapsulate
3Phase
Encapsulate
3Phase
Encapsulate
3Phase
Encapsulate
3Phase
Encapsulate
Single Phase
Segregated
Feeder - 3Phase
Encapsulate
3Phase
Encapsulate
2Phase
Encapsulate
3Phase
Encapsulate
3Phase
Encapsulate
3Phase
Encapsulate
3Phase
Encapsulate
Single Phase
Segregated
Single Phase
Segregated
Single Phase
Segregated
Operating
Mechanism
CB - Motor Spring

Motor Spring

Hydraulic Motor Spring Motor Spring Motor Spring Hydraulic Motor Spring Hydraulic Hydraulic
DS - Motor Motor Motor Motor Motor Motor Motor Motor Motor
ES - Motor Motor Manual Motor Motor Spring Motor Spring,
Manual
Motor,
Manual
Motor,
Motor Spring
Motor,
Motor Spring
Motor
Applicable Standard - IEC62271
-100,200

IEC62271
-200

IEC 62271-203 / IEC 62271-102 / IEC 62271-100 / IEC 62271-203 / IEC 62271-102