|Rated Voltage:||3.6KV 6.6KV 7.2kV, 12kV, 24kv||Rated Current:||400A 630A, 1250A, 1600A, 2000A, 2500A, 3150A,|
ZN63 Vacuum Circuit Breaker,
VS1 Vacuum Circuit Breaker,
Vacuum Circuit Breaker VCB
1. ZN63 Series vs1 12kv 630A indoor high voltage vacuum circuit breaker VCB
ZN63-12 type 11kv 12kv vacuum circuit-breaker serves in the three phase AC power system for rated volta ge of 10kV and rated frequency of 50Hz to switch various kinds of loads in frequent operation places and can be used to protect and control electrical equipment in the industrial &mineral enterprise and power plant and substation as well.
2. Product data
|4||Rated short circuit breaking current||KA||20||25||31.5|
|5||Rated short circuit making current||KA||50||63||80|
|6||Rated peak withstand current||KA||50||63||80|
|7||4S rated short circuit withstand current||KA||20||25||31.5|
|8||Rated insulation level||Power frequency withstand (before and after rated breaking)||KV||42 (opening distance 48)|
|Impulse withstand voltage (before and after rated breaking)||KV||75(opening distance 85)|
|9||Rated operating sequence||O-0.3S-CO-180S-CO|
|11||Rated short circuit breaks number||time||50|
|12||Rated closing voltage of operating mechanism (DC)||V||110,220|
|13||Rated opening voltage of operating mechanism (DC)||V||110,200|
|14||Clearance between open contacts||mm||11±1|
|15||Over travel (contact spring compressed length)||mm||3.5±0.5|
|16||Opening and closing bounce time of three phases||ms||≤ 2|
|17||Contact closing bounce time||ms||≤ 2|
|18||Average opening speed||m/s||1.1±0.2|
|19||Average closing speed||m/s||0.6±0.2|
|20||Opening time||Under max operating voltage||S||≤ 0.05|
|21||Under minimum operating voltage||S||≤ 0.08|
|23||Main circuit resistance of each phase||μΩ||60||50|
|24||Allowed wearing thickness of moving and fixed contact||mm||3|
Maximum temperature: +40℃; Minimum temperature:-25℃.
Altitude above sea level: Maximum installation altitude: 2500m.
Humidity: Monthly average humidity 95%; Daily average humidity 90% .
Ambient air not apparently polluted by corrosive and flammable gas, vapor etc.
No frequent violent shake.
4. Photo and drawing
1. Technology ensure the quality satisfy international request.
2．Generally we promise one - two years quality guarantee, some products will be extended longer time for life span.
3. For tender cooperation, it is welcome to discuss the detail in between.
4. Some type reports are provided accordingly.
5. Our factory is 250000m2 for production and office.
6. There are four subsidies in our group company. So our whole group company can produce switchgear, power transformer, load break switch, disconnect switch, vacuum/sf6 circuit breaker, fuse, surge arrester, CT PT, Metering unit.