KYN28A-12(24) Metal-armored Draw-out Switchgear

7.2~24KV power distribution device for power stations, industrial and mining enterprises and high-rise buildings. Can be used in power plants, as a single-busbar system to receive and distribute electrical energy. Conform to GB3906 and IEC60298.

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Description

Metal-armored Draw-out Switchgear
KYN28A-12/24

Product Introduction

The KYN28A series internal armored withdrawable switchgear is a new type of mid mounted switchgear developed on the basis of widely absorbing the advantages of similar products at home and abroad. The cabinet is equipped with a vacuum circuit breaker and can be equipped with temperature online monitoring function to prevent faults caused by poor contact of the primary plug. 7.2-24KV distribution devices can be used in power plants, substations, mining enterprises, and high-rise buildings as a single line system to receive and distribute electrical energy. Complies with GB3906 and IEC60298.

Main technical parameters
Item		Technical parameter
Rated voltage (kV)		12	24
Rated current (A)		630、1250、1600、2000、2500、3150	630、1250、2000、2500、3150、4000
Rated short-circuit breaking current (kA)		25、31.5、40	25、31.5
Rated short-circuit switching current (kA)		63、80、100	63、80
Rated peak tolerance current (kA)		63、80、100	63、80
4S tolerance current at rated short circuit (kA)		25、31.5、40	25、31.5
Rated insulation level	Lighting shock tolerance voltage (kV)	95（Interphase, opposite）110（Between fractures）	125（Interphase, opposite）145（Between fractures）
	Power frequency tolerance voltage (1min)(kV)	43（Interphase, opposite）49（Between fractures）	65（Interphase, opposite）79（Between fractures）
Rated short-circuit breaking current number of breaks (kA)		50	50
Mechanical life		30000	20000
Protection grade		IP4X