VCB Vacuum Circuit Breaker 1.14KV 630A 15KA HVD11 from JUCRO Electric
VCB Vacuum Circuit Breaker 1.14KV 630A 15KA HVD11 from JUCRO Electric
VCB Vacuum Circuit Breaker 1.14KV 630A 15KA HVD11 from JUCRO EleCTric
General：
HVD11-1.14 Vacuum Circuit Breaker is mainly used in 1140v or 660v three phases electrical distribution system. It is used for distribution power, circuit protection and power equipment. It is also popular in railway, mine, electricity and so on. The product structure is vertical design. Vacuum chamber, electromagnet and latched device is up-down structure. Adjustment and maintenance are easy. It has high breaking ability, high reliability and long working life. It is in and out bus bar is at the back of the circuit breaker. And the bus bar is plug-in type, can be installed as explosion-proof feed switch easily. This circuit breaker should be used together with electronic tripper.
Main specifications and technical parameters：
No. | Item 项目 | Data 参数 |
1 | Rated voltage 额定电压 | 1140v AC |
2 | Rated current 额定电流 | 630A |
3 | Convention thermal current 额定发热电流 | 630A |
4 | Rated short circuit breaking current 短路分断电流 | 12.5KA(1140V, COSφ=0.3) |
5 | Rated short circuit breaking times 额定短路开断次数 | 16times(Closing-Opening 10 times, Opening 6 times) |
6 | Rated frequency 额定频率 | 50HZ |
7 | Electrical life 电寿命 | ≥3000times AC-2 |
8 | Mechanical life 机械寿命 | ≥10000times AC-2 |
9 | Inherent closing time 固有合闸时间 | ≤100ms |
10 | Inherent opening time 固有分闸时间 | ≤30ms |
11 | Three phases unsynchronized time 三相不同期时间 | ＜1.5ms |
12 | Electromagnet power on time 电磁铁通电时间 | 120~200ms |
13 | Resistance of single phase closing circuit 单极合闸回路电阻 | ≤100μΩ |
14 | Opening distance 开距 | 3.0~4.0mm |
15 | Over travel distance 超程 | 1.8~2.2mm |
16 | Auxiliary contacts 辅助触头 | 3NO+3NC |
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