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Adoption of high capable and reliable hydraulic mechanism for circuit breaker |
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High insulation and reliability by metal enclosure filled with SF6 gas |
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Stability improvement by conductive and operating parts installation inside of the enclosure |
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Remarkable installation area reduction by compact design |
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Certificated by the newly revised IEC standards |
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Adoption of the combined-disconnector and earthing switch (3-position switch) |
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Easy transport, installation and maintenance during GIS working | |
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Item |
170kV GIS |
Model |
170SR |
Rated Voltage (kV rms) |
170 |
Rated Short-circuit Breaking Current (kA rms) |
31.5 / 50 |
Rated Current (A rms) |
2000 / 3000 / 4000 |
Rated Frequency (Hz) |
60 |
Rated Power Frequency Withstand Voltage (kV rms) |
325 |
Rated Lightning Impulse Withstand Voltage (kV peak) |
750 |
Rated Switching Impulse Withstand Voltage (kV peak) |
- |
Rated Gas Pressure (Mpa) |
0.6 / 0.4 | |
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170SR (2000/3000/4000A) |
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Circuit Breaker |
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- Hybrid puffer method for arc extinction operated by hydraulic mechanism |
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Make-proof Earthing Switch |
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- Motor spring operation |
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Combined-Disconnector and Earthing Switch |
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- Motor or Manual operation | |
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