Main Features
a. Our VTK-24KV indoor vacuum generator circuit breaker is equipped with the high-performance, stable and reliable spring operating mechanism with little maintenance required.
b. The primary conducting loop adopts solid insulation structure. With the advanced epoxy solid seal technology, the arc chute, conducting loop, and insulating support are organically combined into an integrated embedded pole. This successfully solves the environmental resistance problems of the vacuum circuit breaker and makes it more widely used.
c. Type test is performed according to the electrical life of Class E2, mechanical life of Class M2, and heavy breakdown probability in breaking capacitive current of Class C2 as stated in GB1984-2003.
d. The mechanical characteristics of each product are recorded by the advanced imported testing equipment and the characteristic curves are provided to the customers, so as to ensure the reliability of our product.
No. | Item | Unit | Data | ||||
1 | Rated voltage | kV | 24 | ||||
2 | Power frequency withstand voltage (1min) | 65 (phase to earth, phase to phase) 79 (between fractures) | |||||
3 | Lightning impulse withstand voltage (peak) | 125(phase to earth, phase to phase) 145(between fractures) | |||||
4 | Rated frequency | Hz | 50/60 | ||||
5 | Rated current | A | 630、1250、1600、2000、2500、3150 | ||||
6 | Rated short-circuit breaking current (rms) | kA | 20 | 25 | 31.5 | 40 | |
7 | Rated short-time withstand current (rms) | 20 | 25 | 31.5 | 40 | ||
8 | Rated short-circuit current duration | s | 4 | ||||
9 | Rated peak withstand current (peak) | kA | 50 | 63 | 80 | 100 | |
10 | Rated short circuit making current (peak) | 50 | 63 | 80 | 100 | ||
11 | Rated breaking current for a single back-to-back capacitor bank | A | 630/400 | ||||
12 | Mechanical life | times | 10000 | ||||
13 | Rated short-circuit current breaking times | 30 | 20 | ||||
14 | Rated operating sequence | Open-0.3 s-close open-180 s-close open | Open -180s-close open-180 s-close open |
RelatedNames
Electric Breaker | High Voltage Load Switch | Motor Protection Circuit Breaker