VDH/GSMI
Combined Vacuum Substation Circuit Breaker and High-Speed, Mechanically Interlocked Grounding Switch rated 38 kV, 1200 A, 25 / 31.5 / 40 kA
This series is specially designed for application with wind energy collection circuits. It totally replaces traditional use of grounding transformers combined with conventional circuit breakers in every feeder of a wind power substation
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DESIGNATION CODE | |||||
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VDH/GSMI 38.12.25 |
VDH/GSMI 38.12.32 |
VDH/GSMI 38.12.40 |
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Main Breaker | Grounding Switch | Main Breaker | Grounding Switch | Main Breaker | Grounding Switch |
| Rated Voltage | kV | 34,5 | 34,5 | 34,5 | |||
| Rated Maximum Voltage | kV | 38 | 38 | 38 | |||
| Rated Continuous Current | A | 1200 | 1200 | 1200 | |||
| Rated Symmetrical Interrupting Capability | kA | 25 | — | 31,5 | — | 40 | — |
| Rated Short-Time Current (RMS) | kA (3 seg) | 25 | 12,5 | 31,5 | 12,5 | 40 | 12,5 |
| Rated Closing and Latching Current (Peak) | kA | 65 | 33 | 82 | 33 | 104 | 33 |
| Dielectric Strength – Power Frecuency | kV | 80 | 80 | 80 | |||
| Dielectric Strength – Impulse Full Wave (BIL) | kV | 200 | 200 | 200 | |||
| Rated Frecuency | Hz | 50/60 | 50/60 | 50/60 | |||
| Rated Closing Time | ms | ≤ 45 | — | ≤ 45 | — | ≤ 45 | — |
| Rated Opening Time | ms | ≤ 30 | — | ≤ 30 | — | ≤ 30 | — |
| Rated Arcing Time | ms | 4 to 11 | — | 4 to 11 | — | 4 to 11 | — |
| Rated Mechanical Switching Time | ms | 12 to 16 | 12 to 16 | 12 to 16 | |||
| Maximum Electrical Switching Time | ms | 12 | 12 | 12 | |||
