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high voltage switchgear
high voltage switchgear

GZS1 indoor metal-clad withdrawable switchgear is a complete power distribution device for 3.6~24 Specifications

High voltage Switchgear GZS1 type similar as ABB ZS series

GeneralGZS1 indoor metal-clad withdrawable switchgear(hereinafter short as switchgear)is a complete power distribution device for 3.6~24kV,3-phase AC 50Hz,single-bus and single-bus sectionalized system. It is mainly used for power transmission of middle/small generators in power plants; power receiving, transmission for substations in power distribution and power system of factories, mines and enterprises, and starting of large high-voltage motor, etc.,so as to control, protect and monitor the system. The switchgear meets IEC298,GB3906-91.In addition to be used with domestic VS1 vacuum circuit breaker, it can also be used with VD4 from ABB,3AH5 from Siemens domestic ZN65A,and VB2 from GE, etc.,it is truly a power distribution device with good performance.

In order to meet the requirement for wall mounting and front-end maintenance, the switchgear is equipped with a special current transformer, so that the operator can maintain and inspect it in front of the cubicle.

Service environmenta) Air temperature: Maximum temperature: +40°C; Minimum temperature:-15°C

b) Humidity: Monthly average humidity 95%; Daily average humidity 90% .

c) Altitude above sea level: Maximum installation altitude: 1000M.

d) Ambient air not apparently polluted by corrosive and flammable gas, vapor etc.

e) No frequent violent shake Main technical specifications

No

Item

Unit

Parameter

1

Rated voltage

kV

7.2kV, 12 kV,17.5kV,24kV

2

Rated frequency

Hz

50/60

3

Rated current

A

630,1250,1600,2000,2500,3150,4000

4

Branch busbar Rated current

A

630,1250,1600,2000,2500,3150,4000

5

Main busbar Rated current

A

630,1250,1600,2000,2500,3150,4000

6

1min Power frequency

withstand voltage

wet

kV

38

50/60

dry

kV

48

60/65

7

Lightning impulse withstand voltage

kV

75

95/125

8

Rated short circuit breaking current (peak)

kA

40/50/63/80/100

9

Short time withstand current(4s)

kA

20/25/31.5/40

10

Protection type

IP4X for housing

high voltage switchgear

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