Switchgear type СS KER 24/1 up to 24 kV, gas-insulated, expandable

lectrical characteristics

Switchgears CS KER 24/1 are assembled at the KazEnergoPower plant, have passed type tests, switchgears in a metal case for indoor installation.

Structure and design

Partition class

PM (metal partitions)

Availability category in cell service

cable connection cells

LSC 2

LSC 1

Compartment accessibility (shell)

Busbar compartment
Compartment with switch
Compartment with pull-out circuit breaker
Low voltage compartment (optional)
Cable compartment for switchgear panels:
- without high voltage fuses (R, L, …)
- with high voltage fuses (T, …)
Cable connection (K)
Measuring cell (air insulated) (M, …H)

Internal arc certification (optional)

The following internal arc tests are carried out: IAC A FL(R), I SC, t
IAC	= Classification according to internal arc resistance
Class IAC at Installation against a wall Free installation	Rated voltage from 7.2 kV to 24 kV: IAC A FL, I SC, t IAC A FLR, I SC, t
Availability type: A	The device is located in a closed electrical
	production site, only for
	authorized personnel
	(according to IEC 62271-200)
– F	Front side
– L	Side surfaces
–R	Rear panel (free-standing)
Arc test current I SC	up to 21 kA
Test duration t	1 s

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