110kV–220kV GIS terminal
The GIS terminal operates in a fully enclosed environment, unaffected by atmospheric conditions and pollution. Its size is much smaller than outdoor terminals. The external insulation uses an epoxy resin bushing, and it is installed inside the gas-insulated switchgear (GIS), with sulfur hexafluoride gas serving as the external insulation for the gas-insulated cable terminal.
The 110kV GIS terminal is suitable for 240mm²-1600mm².
The 220kV GIS terminal is suitable for 400mm²-2500mm².
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Product Parameters |
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Project |
Technical parameters |
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110kV GIS Terminal |
220kV GIS terminal |
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Rated voltage and frequency |
64/110kV, 50Hz |
127/220kV, 50Hz |
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Maximum operating voltage |
126kV |
252kV |
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Ambient temperature |
-40 ℃-+50 ℃ |
-40 ℃-+50 ℃ |
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Maximum conductor temperature during normal operation |
90 ℃ |
90 ℃ |
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Maximum conductor operating temperature at short circuit |
250 ℃ |
250 ℃ |
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Applicable cable cross-sectional area |
240mm ²-1600mm ² |
300mm ²-2500mm ² |
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Partial discharge test |
96kV, no detectable discharge |
190kV, no detectable discharge |
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Power frequency voltage test |
160kV,60min |
318kV,60min |
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Lightning impulse voltage test |
± 550kV, 10 times each, no breakdown, no flashover |
± 1050kV, 10 times each, no breakdown, no flashover |
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