KYN28-12 Metal armoured removable switchgear

Product introduction

Metal armouring removable switchgear

Metal-armoured removable switchgear, suitable for three-phase AC 50Hz,3.6~12kV single bus and single bus segment power system。It is used to receive and distribute electrical energy and to control, protect and monitor circuits。

• Application field

。电厂

。substation

。Industrial and mining enterprises

。Urban infrastructure

。地铁

。机场

。楼宇




Main technical parameters
序号	名称		单位	参数
1	Rated voltage		KV	3.6、7.2、12
2	Rated frequency		HZ	50
3	Rated maximum Marginal level	1 minPower frequency withstand voltage	KV	42 (phase and low)/48 （断口）
4		Peak lightning impulse withstand voltage	KV	75 (phase and low)/85 （断口）
5	Rated current of main bus		A	630、1250、1600、2000、2500、3150
6 7	Rated current of the branch bus		A	630、1250	1250	1600、2500
						2000、 3150
8	Rated short-circuit breaking current		KA	16、20、25	31.5	31.5、40、50
9	Rated short-time withstand current		KA	16、20、25	31.5	31.5、40、50
10	Rated short-time withstand current duration		S	4S
11	Class of protection			外壳IP4X,The circuit breaker room door opens asIP2X
12	重量		KG	800-1200