24KV Indoor High Voltage Vacuum Circuit Breaker

1)No.1 Vacuum circuit breaker factory 2)Export to Ethiopia,Thailand,Burma,Mongolia,HK,Kenya 3)23 years' manufacture experienc

ZN63(VS1)-24KV Series Handcart Type Indoor High Voltage Vacuum Circuit Breaker

ZN63 (VS1) -24 Series type indoor high voltage vacuum circuit breaker is rated voltage 24kV, three-phase AC 50Hz Indoor high-voltage switchgear ,apply 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 manufacturing accordance with our national standard GB1984-2003 <AC high voltage circuit breakers>, DL / T403-2000<3.6 ~ 40.5kV Indoor Vacuum Circuit Breaker ordering technology>; and the related IEC standards And reliable interlock function.

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 be equipped with long life permanent magnetic actuator, mechanical life can reached 60000 times ,can be used for extremely Frequent operation place,

Circuit breaker designed to repackage the structure before and after, both can be used as a fixed installation unit, Can also be equipped with the chassis as used in the mounted unit.

The use of environmental 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.

 

 

Mainly technical parameters
NO	Item	Units	parameters
1	Rated voltage	KV	24
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 withstand
voltage	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
Adjust the parameters of mechanical properties:
No	Item	Unit	Parameters
1	Contact distance	mm	14±1
2	Contact Over-travel	mm	3.5±1
3	Closing speed	m/s	1.0±0.2
4	Opening speed	m/s	1.3±0.2
5	Contact closing spring time	ms	≤2
6	Rated contact pressure	N	20KA(2400±200) 25KA (2400±200) 31.5KA(3100±200)
7	Three phase closing opening asynchrony	ms	≤2

  

24KV Indoor High Voltage Vacuum Circuit Breaker