VS1-12 12KV Indoor Vacuum Circuit Breaker(12kV VCB)

12KV Indoor Vacuum Circuit Breaker VS1-12; 11kV VCB; 12kV VCB; fixed VCB; Draw-out type VCB;

Description

VS1-12 12KV Indoor Vacuum Circuit Breaker(12kV VCB)

General Introduction:

VS1 -12KV fixed type indoor vacuum circuit breaker is rated voltage 12kV, three-phase AC 50Hz/60Hz Indoor high-voltage switchgear ,applied for power stations, substations, and industrial and mining enterprises to control or protection transmission and distribution systems , specially for the important high altitude breaking load and frequent operation place.

Circuit breaker operating mechanism for the spring energy storage type, can use AC and DC energy storage operations, can also be used manually.Circuit breaker can also be equipped with long life permanent magnetic actuator, mechanical life can reached 60000 times , can be used for extremely Frequent operation place.

Working Conditions

1.Ambient temperature: not higher than +40 °C, not less than -15°C

2. Altitude: not exceed 1000m.

3. Relative humidity: daily average of not more than 95%, month average of not more than 90%.

4. Earthquake intensity: not more than ten.

5. No fire, explosion hazard, serious filthy, chemical corrosion, as well as places of intense vibration.

Technical Specification:

NO	Item	Units	parameters
1	Rated voltage	KV	12
2	Rated Frequency	HZ	50
3	Rated Current	A	630.1250.1600.2000.3150
4	Rated short-circuit breaking current	KA	20 25 31.5
5	Rated short-circuit closing current (peak)	KA	50 63 80
6	Rated short-circuit duration	S	4
7	Rated short-circuit breaking current breaking number	nos	50s
8	Rated operating sequence		0-0.3s-CO-180s-CO
9	Rated lightning impulse withstandvoltage	kv	125
10	1min power frequency withstand voltage	KV	65
11	Closing time	ms	≤ 70
12	opening time	ms	≤ 50
13	Mechanical life	Times	20000
14	Rated Storage and operation voltage	V	AC DC 220/110
15	Breaking life	ms	≤ 80
16	Storage life	s	≤ 10