1. 21 Years Production Experience 2. Largest Switchgear Cubicle in China 3. Competitive Price 4. ISO9001,CCC Approved

1. General

ZN85-40.5G(3AV3) indoor AC HV Vacuum circuit breaker(hereinafter called circuit breaker)is applicable for power system with  three-phase AC50/60Hz,40.5kV, used for industrial and mining enterprises, power plants and transformer substations to protect and control equipemnts, also, it can be used in the location where with frequent operating.  for more detailed information.

2. Service Environment

      Environmental temperature is from:-15~40°C;      Environmental humidity:      Daily average of relative humidity≤95%      Daily average saturated vapor pressure≤2.2×10-3Mpa      Monthly average of relative humidity≤90%      Monthly average saturated vapor pressure≤1.8×10-3Mpa      Keep away from such environment as subject to dust, dirt, smog, corrosive/flammable gas, vapor and salt pollution.  3. Technical Parameter

Code	Item		Unit	Data
1	Rated voltage		kV	40.5
2	Rated insulation level	1 min power frequency withstand voltage (virtual value)	kV	95
		Lighting impulse withstand voltage (peak)	kV	185
3	Rated frequency		Hz	50
4	Rated current		A	1250      1250,1600,2000
5	4s Rated short-time withstand current		kV	25               31.5
6	Rated peak withstand current		kV	63               80
7	Rated short-circuit breaking current		kV	25               31.5
8	Rated  short-circuit making current		kV	63               80
9	Rated operating sequence			0-0.3-CO-180S-CO40.5
10	Rated short-circuit breaking current times			20
11	Rated breaking current of capacitor bank		A	630
12	Mechanical endurance			10000

 

33kV Vacuum Circuit Breaker (VCB) ZN85-40.5