Vacuum Circuit Breaker VCB Permanent magnet mechanism 15KA
Vacuum Circuit Breaker VCB Permanent magnet mechanism HVD11Y 1.14KV 630A 15KA
General:
HVD11-1.14 Permanent magnet mechanism Vacuum Circuit Breaker is mainly used in 1140v or 660v three phases eleCTrical distribution system. Permanent magnet low-voltage vacuum circuit breakers can be operated under the rated current range frequently breaking the short-circuit current, more suitable for use in coal mine feed systems, composed of mining and high voltage flameproof distribution. ALso could use for Large-capacity motors for start infrequently.
This product uses bistable permanent magnet mechanism + short-circuit magnetic manual opening, simple structure, stable and reliable. Because there is no axle, hook and other mechanical parts, greatly reduced the mechanical parts failure caused by wear and tear, Longer service life.
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 | 15KA(1140V, COSφ=0.3) |
5 | Rated short circuit breaking times 额定短路开断时间 | 16times(Closing-Opening 10 times, Opening 6 times) |
6 | Rated working frequency 额定频率 | 50HZ |
7 | Electrical life 电寿命 | ≥3000times AC-2 |
8 | Mechanical life 机械寿命 | ≥50000times 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 | Resistance of single phase closing circuit 单极合闸回路电阻 | ≤100μΩ |
13 | Opening distance 开距 | 3.0~4.0mm |
14 | Over travel distance 超程 | 1.8~2.2mm |
15 | Auxiliary contacts 辅助触头 | 3NO+3NC |
永磁机构主要参数表
NO. | 项目Item | 单位Unit | 参数Data |
1 | 控制电路额定电压 Rated control voltage | V | AC110-AC380 |
2 | 控制电路总功率 Control circuit total power | W | ≤200 |
3 | 操作机构***操作频率 Operating mechanism maximum operating frequency | Times/H | 300 |
4 | 合闸最小间隔时间 Minimum closing interval time | S | ≥2 |