VBI-C-12KV Medium Voltage Side Mounted Vacuum Circuit Breaker

VBI type vacuum circuit breaker conforms to national standard GB1984-2003 HV Vacuum Circuit Breaker, JB3855-1996<3.6-40.5kV indoor AC high voltage vacuum circuit breaker>, DL/T403-2000<12kv-40.5kv HV vacuum circuit breaker ordering technical conditions>, and IEC62271-100:2001 high voltage AC circuit breaker relevant regulations.

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VBI-C-12KV Medium Voltage Side Mounted Vacuum Circuit Breaker

Electrical Products

Usage Conditions
Technical Parameters
Dimensions

Ambient conditions of VBI-C-12KV Medium Voltage Side Mounted Vacuum Circuit Breaker

1. Ambient temperature is not greater than +40 ℃, not less than -10 ℃ (allow storage at -30 ℃);

2. Altitude below 1000m;

3. Daily average daily relative humidity of not more than 95%, the monthly average of not more than 90%; saturated vapor pressure daily average of not more than 2.2 * 10-3MPa, the monthly average of not less than 1.8 * 10-2MPa. When the temperature drops sharply, it may condense;

4. Earthquake intensity does not exceed 8;

5. No fire, explosion, serious pollution, chemical corrosion and severe vibration of the place.

Technical Parameters of VBI-C-12KV Side Mounted Vacuum Circuit Breaker

NO.	Name	Unit	data
*	Type	/	口Insulating cylinder 口Epoxy resin embedded poles 口Nylon embedded poles		口Upper outlet 口Side outlet
1	clearance between open contacts	mm	11±1
2	overtravel		3±0.5
3	Interphase center distance		210±1
4	Contact closing bounce time	ms	≤2
5	Three phase switching and switching out of synchronism		≤2
6	Opening time		≤50
7	Closing time		≤100
8	Average switching speed (6mm after contact separation)	M/S	0.9~1.3
9	Average closing speed (6mm before contact closing)		0.4~0.8
10	Closing contact pressure	N	25KA	31.5KA
			2200±200	3200±200