KYN28-12 type MV switchgear
General:ZS1 indoor metal-clad withdrawable switchgear(hereafter short as swithgear…
KYN28-12 type MV switchgear

KYN28-12 type MV switchgear

Detailed description

  • Description
  • Technical data

General:

ZS1 indoor metal-clad withdrawable switchgear(hereafter short as swithgear) is a complete power distribution device for 3.6~24KV, 3 phase AC 50Hz, single bussectionalized system. It ismainlu 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 be used with VD4 from ABB, 3AH5 from Siemens domestic ZN65A, and VB2 from GE, etc. It is truly a power distribution deviece 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 environment

a. Ambient temperature: Maximum temperature:+40℃     Minimum temperature: -15℃
b. Ambient humidity: Daily average RH no more than 95%;Monthly average RH no more than 90%
c. Altitude no higher than 2500m;
d. The air around without any pollution of duty,smoke,ercode or flammable air,steam or salty fog;

Items

Unit

parameter

Rate voltage

kV

12

Rate frequency

Hz

50

Rated main bus bar current

A

630 ,1250,1600,2000,2500 ,3150

Rated branching bus bar current

A

630 ,1250,1600,2000,2500 ,3150

Short-time withstand current(4S)

kV

20,25,31.5,40

Peak withstand current(peak.)

kV

50,63,80,100

Rated short drop out current

kV

20,25,31.5,40

Rated short circuit open and cut(Peak)

kV

50,63,80,100

Rated insulation level

1min power frequency
withstand voltage

ph-ph,ph-ground

kV

25,30,42

breaker gap

kV

27,34,48

Rated lighting impulse withstand voltage(Peak)

ph-ph,ph-ground

kV

40,60,75

breaker gap

kV

46,70,85


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