ZW20A-12 12kV Outdoor Pole High Voltage AC Vacuum Circuit Breakers from China manufacturer

ZW20A-12 12kV Outdoor Pole High Voltage AC Vacuum Circuit Breakers

Payment Terms:	T/T,L/C,WU
Place of Origin:	Zhejiang, China (Mainland)


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Product Detail

Model No.: ZW20A-12

Production Capacity: 1500PCS/Month

Delivery Date: 20 days after receiving dow...

Poles Number: 3

Rated Voltage: 12kV

Application: Medium and High Voltage

Means of Transport: Ocean,Land,Air

Packing: In wooden cases

Type: Vacuum

Brand Name: PURANA

Rated Current: 630/1000A

The outdoor vacuum circuit breaker has function of overload and short circuit protection,controlling,measuring,remote control and remote monitoring.

ZW20A-12 type outdoor AC vacuum circuit breaker is s used in three-phase power system of AC 50Hz, rated voltage 10kV to 12kV, as breaking, making load current. Also, the circuit breaker has the function of overload and short circuit protection, controlling, measuring, remote control and remote monitoring. This circuit breaker is applied in industrial and mining enterprises, power plant and substation for electric equipment's control and protection, and also it can be used on the occasion of frequent operation of rural power grids due to circuit breaker's repeatedly interrupting and fast reclosing ability. It accords with the standards of IEC62271-100 & GB1984 AC high voltage circuit breaker, GB/T 11022 HV General technical requirement of switch and control apparatus.

Ambient condition :

1. Altitude: ≤1000mm;

2. Ambient temperature: -40°C ~+44°C ;

3. Wind speed: 34m/s;

4. Applicable occasions should free from inflammables, explosives, corrosives.

Main technical parameters of pole vacuum circuit breaker:

No	Item		Unit	Value
1	Rated voltage		kV	12
2	Rated current		A	630/1000
3	Rated frequency		Hz	50
4	Rated short circirt breaking current		kA	12.5/16/20/25
5	Rated short circuit withstand current (peak)		kA	31.5/40/50/63
6	Rated short time withstand current 4s		kA	12.5/16/20/25
7	Rated short circuit making current (peak)		kA	31.5/40/50/63
8	Mechanical endurance		times	10000
9	Rated current breaking times		times	10000
10	Breaking operations of rated short-circuit breaking current		times	30
11	1min power frequency withstand voltage	Between phase	kV	42
11	1min power frequency withstand voltage	To earth	kV	48
12	Lightning impulse withstand voltage	Between phase	kV	75
12	Lightning impulse withstand voltage	To earth	kV	85
13	1min power frequency withstand voltage of secondary circuit		kV	2