High Voltage Metal Enclosed SF6 Gas Insulated Switchgear
60kV, 72.5kV, 88kV, 110kV, 126kV, 132kV up to 145kV
GIS-145R type High Voltage metal enclosed SF6 gas insulated switchgear (GIS) is combined with gas circuit breaker (GCB), isolater switch (DS), earthing switch (ES), voltage transformer (PT), current transformer (CT) and BUS Bar (BUS), lightning arrestor (SA), Bushing (BSG), cable terminal barrel (CH), and other electrical components, assembled in the metal case which have be grounding, and fill the SF6 gas as a medium of insulation and arc suppression, the effect is almost equivalent to a switch station. It has two ways for cable outlet and inlet, bushing outlet-inlet and cable outlet-inlet . Because of its compact design, cove small area, and is not affected by the external environment, safe and reliable operation and configuration flexibility, simple maintenance and long cycle, so widely used in the power plant and subsation, to be a main switcher.
Basic Technical Parameter
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Rated voltage (kV)
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72.5
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145
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170
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Rated frequency (Hz)
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50/60
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Rated current (A)
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2000 - 2500 - 3150
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Breaking current (kA)
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31.5 - 40
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Rated lightning impulse (kVp)
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325
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650
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750
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Permissible ambient temperature (°C)
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-30 / +40
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Type of enclosure for devices
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Single-phase encapsulated
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Type of enclosure for bus bars
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Single-phase encapsulated
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Arrangement for circuit breaker
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Vertical - Horizontal
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Ambient temperature range ( °C )
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-40 … +50
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Installation type
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Indoor & Outdoor
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