Product Overview
VBP Series Indoor AC HV Vacuum Circuit Breaker is the electric system switchgear of rated voltage 12kV/24kV. It is also as the control and protection unit of industrial enterprises and mines. power station and substation device. Circuit breaker can be proceeded frequent operation and has many times breaking and rapid reclosure capacity, and has reliable interlock function. The CB is in line with GB/T1984-2014 “HV AC CB”. JB/T3855-2008 “3.6-40.5kV indoor AC HV vacuum CB”. DL/T403-2000″12kV-40.5kV HV vacuum CB ordering technical condition” and IEC 62271-100: 2008. The device is front and back split charging structure, not only as a fixed installation unit but also match handcart unit with base plate cart.
Main Technical Parameters
No. | Item | Unit | Data |
1 | Rated voltage | kV | 12/24 |
2 | Rated Frequency | Hz | 50 |
3 | Rated l min power frequency withstand voltage (phase to phase, to earth, fracture | kV | 42/65 |
4 | Rated lightning impulse withstand voltage (phase to phase, to earth, fracture | kV | 75/125 |
5 | Rated operation sequence | O-t-CO-t’-CO |
No. | Item | Unit | Model of CBVBP-12/… VBP-24/… | VBP-12/… |
1 | Rated current | A | 630 1250 1250 1600 2000 2500 1250 1600 2000 2500 3150 | 3150 4000 |
2 | Rated short circuit breaking current | kA | 20/25 31.5 40 | 50 |
3 | Rated short circuit makine current (peak) | kA | 50/63 80 100 | 125 |
4 | Rated duration of short circuit | s | 4 4 4 | 4 |
5 | Rated breaking times of short circuit (times) | Times | 50 50 30 | 20 |
6 | Mechanical life (times) | Times | 30000 30000 30000 | 20000 |