Zw7 36/40.5kv Vacuum Break Switch. Vcb/Load Break Switch/Lbs Breaker/Hv Vacuum Circuit Breaker/Siemens PLC Control

• Type: Bearing, Circuit Breaker
• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Electric Type
• Speed: High-Speed Circuit Breaker
• Arc-Extinguishing Medium: Vacuum
• Installation: Fixed
• Model NO.: ZW7-33/1250-31.5
• Poles Number: 3
• Function: Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, Ovp(Overvoltage Protection)
• Certification: VDE, ISO9001-2000, CE
• Structure: Outdoor
• Transport Package: Pallet Wooden
• Specification: 600x900x2000
• Trademark: MINGZHE
• Production Capacity: 500PCS/Week

Product Description

Product Description

ZW7-1600

ZW7-40.5 outdoor high voltage vacuum circuit breaker is used for AC three-phase power system with 50Hz and voltage of 40.5KV, which is used for breaking, closing load current, overload current and short circuit current.

The main function:

1. Vacuum arc extinguishing, strong breaking capacity, long electrical life and 10,000 mechanical life;

2. Simple structure, maintenance-free, long maintenance period;

3. Good insulation performance and strong anti-pollution ability;

4. It can be equipped with spring or electromagnetic operating mechanism, with reliable mechanical performance and frequent operation; no fire and explosion hazard;

5. Built-in current transformer, the lecturer's precision reaches 0.2, which can realize three-phase interactive protection;

6. With condensation controller, it can keep the circuit breaker running reliably under certain temperature and humidity.

Environmental conditions:

1. Ambient air temperature: upper limit +50°C, lower limit -30°C;

2. Altitude: ≤3000m (If the altitude is to be increased, the rated insulation level will increase accordingly);

3. Wind pressure: no more than 700Pa (equivalent to a wind speed of 34m/s);

4. Amplitude: seismic intensity of 8 degrees;

5. Pollution level: Level III;

6. Large daily temperature difference: no more than 35°C.

Product Parameters

NO	Item			Unit	Value
1	Rated voltage			KV	40.5
2	Rated insulation level	Power frequency withstand voltage	Dry test		95
			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 operation sequence				0-0.3s-combination-180s-combination
6	Rated short circuit current breaking times			times	12
7	Rated short circuit closing current (peak)			KA	50,63,80
8	Rated peak withstand current
9	Rated short-time withstand current			KA	20,25,31.5
10	Rated short circuit continuous current			S	4
11	Average opening speed			m/s	1.5±0.2
12	Average closing speed				0.7±0.2
13	Contact closing bounce time			s	≤2
14	Three-phase combined (minute) gate synchronous time difference				≤2
15	Closing time				≤150
16	Opening time				≤60
17	Mechanical life			times	10000
18	Rated operating voltage and auxiliary circuit rated voltage			V	DC220,110,24
					AC220,110,24
19	DC resistance per phase circuit (without transformer)			μΩ	≤100
20	Dynamic and static contacts allow wear thickness			mm	3
21	weight			kg	800

Detailed Photos