ZW7A 40.5 Three Phase Electrical Outdoor Power Distribution Equipment Vacuum Circuit Breaker

Description:

It is mainly used for breaking and closing the load current, overload current and short circuit current in the power system. It is suitable for protection and control in power distribution systems of substations and industrial and mining enterprises.

Request a Quote

Download

Detailed Description

ZW7A- .40.5 outdoor high voltage AC vacuum Circuit Breaker is a kind of current transformer external outdoor power distribution equipment, suitable for 50 Hz three- -phase AC with 40.5KV rated voltage. It is mainly used for breaking and closing the load current, overload current and short circuit current in the power system. It is suitable for protection and control in power distribution systems of substations and industrial and mining enterprises. It could be applied in the rural power grids and other places that need frequent operation, especially suitable for urban network and rural network transformation.

Model Meaning

Drawing

Environmental

No.	ltem			Unit	Data
1	Rated voltage			KV	40.5
2	Rated insulation leve	1 min power frequency withstand voltage	Dry test		95
		1 min power frequency withstand voltage	Wet test		80
		Lightning impulse withstand voltage(peak			185
3	Rated current			A	1250;1600;2000
4	Rated short circuit breaking current			KA	20;25;31.5
5	Rated operating sequence				O-0.3s-CO-180s-CO
6	Rated short-circuit breaking current times			Times	12
7	Rated short circuit closing current (peak)			KA	50;63;80
8	Rated peak withstand current			KA	50;63;80
9	Rated short-time withstand current			KA	20;25;31.5
10	Rated short circuit duration			S	4
11	Contact opening distance			mm	22±2
12	Contact overtravel			mm	4±1
13	Average opening speed			m/s	1.5±0.2
14	Average closing speed			m/s	0.7±0.2
15	Contact closing bounce time			ms	≤2
16	Three-phase closing lopening)gate synchronous time difference			ms	≤2
17	Closing time			Ms	≤150
18	Opening time			Ms	≤60
19	Mechanical life			Times	10000
20	Rated voltage of the auxiliary circuit at rated operating voltage			V	DC110/220、AC110/220
21	DC resistance per phase circuit (without transformer)			μ Ω	≤100
22	Weight			kg	800

ZW7A 40.5 Three Phase Electrical Outdoor Power Distribution Equipment Vacuum Circuit Breaker

INQUIRY

Detailed Description

Model Meaning

Drawing

Environmental

No.	ltem			Unit	Data
1	Rated voltage			KV	40.5
2	Rated insulation leve	1 min power frequency withstand voltage	Dry test		95
		1 min power frequency withstand voltage	Wet test		80
		Lightning impulse withstand voltage(peak			185
3	Rated current			A	1250;1600;2000
4	Rated short circuit breaking current			KA	20;25;31.5
5	Rated operating sequence				O-0.3s-CO-180s-CO
6	Rated short-circuit breaking current times			Times	12
7	Rated short circuit closing current (peak)			KA	50;63;80
8	Rated peak withstand current			KA	50;63;80
9	Rated short-time withstand current			KA	20;25;31.5
10	Rated short circuit duration			S	4
11	Contact opening distance			mm	22±2
12	Contact overtravel			mm	4±1
13	Average opening speed			m/s	1.5±0.2
14	Average closing speed			m/s	0.7±0.2
15	Contact closing bounce time			ms	≤2
16	Three-phase closing lopening)gate synchronous time difference			ms	≤2
17	Closing time			Ms	≤150
18	Opening time			Ms	≤60
19	Mechanical life			Times	10000
20	Rated voltage of the auxiliary circuit at rated operating voltage			V	DC110/220、AC110/220
21	DC resistance per phase circuit (without transformer)			μ Ω	≤100
22	Weight			kg	800