VDH
Vacuum Substation Circuit Breaker up to 38 kV, 3000 A, 40 kA. Particularly used in power substations as main breaker and bus-tie breaker, this series is also ideal for switching and protection of feeders, shunt capacitors banks and reactors.
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DESIGNATION CODE | ||||||
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VDH 38.12.25 | VDH 38.12.32 | VDH 38.12.40 | VDH 38.20.32 | VDH 38.20.40 | VDH 38.30.32 | VDH 38.30.40 |
| Rated Voltage | kV | 34,5 | 34,5 | 34,5 | 34,5 | 34,5 | 34,5 | 34,5 |
| Rated Maximum Voltage | kV | 38 | 38 | 38 | 38 | 38 | 38 | 38 |
| Rated Continuous Current | A | 1.200 | 1200 | 1200 | 2000 | 2000 | 3000 | 3000 |
| Rated Symmetrical Interrupting Capability | kA | 25 | 31,5 | 40 | 31,5 | 40 | 31,5 | 40 |
| Rated Short-Time Current (RMS) | kA (3 seg) | 25 | 31,5 | 40 | 31,5 | 40 | 31,5 | 40 |
| Rated Closing and Latching Current (Peak) | kA | 65 | 82 | 104 | 82 | 104 | 82 | 104 |
| Dielectric Strength – Power Frecuency | kV | 80 | 80 | 80 | 80 | 80 | 80 | 80 |
| Dielectric Strength – Impulse Full Wave (BIL) | kV | 200 | 200 | 200 | 200 | 200 | 200 | 200 |
| Rated Frecuency | Hz | 50/60 | 50/60 | 50/60 | 50/60 | 50/60 | 50/60 | 50/60 |
| Rated Closing Time | ms | ≤ 45 | ≤ 45 | ≤ 45 | ≤ 45 | ≤ 45 | ≤ 45 | ≤ 45 |
| Rated Opening Time | ms | ≤ 30 | ≤ 30 | ≤ 30 | ≤ 30 | ≤ 30 | ≤ 30 | ≤ 30 |
| Rated Arcing Time | ms | 4 to 11 | 4 to 11 | 4 to 11 | 4 to 11 | 4 to 11 | 4 to 11 | 4 to 11 |
