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ZF12-72.5/126/145 GIS
ZF12-72.5/126/145 GIS

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PINGGAO GROUP HIGH VOLTAGE SWITCHGEAR CO.,LTD.

Pingdingshan,Henan,China

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ZF12-72.5/126/145 GIS

1.General DescriptionZF12 gas insulated switchgear (GIS) is a new type of switchgear with 3-phase sharing enclosure. Self-energized are control device is applied for the GIS circuit breaker. The device is so designed that the energy of arc generated is used to improve its arc quenching capability, which leads to a higher breaking capability and a lower operating force needed. The circuit breaker and earthing and disconnecting switch of the GIS are equipped with spring and motor operating mechanism and operation reliability of the GIS is further improved. 2.main technical DataItem Unit ZF12-72.5 ZF12-126 ZF12-145 Rated voltage kV 72.5 126 145 Rated current A 3150 Rated SF6 gas pressure(20℃) CB & CT compartment Mpa 0.6 Other compartments 0.4 Rated peak withstand current (peak) kA 100 Rated short time withstand current (rms) kA 40(3s) Rated short circuit breaking current kA 40 First pole to clear factor 1.5 Over voltage multiple of reversal phase 2

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