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JN22-40.5 Middle voltage earth switch
Product Description JN22-40.5/31.5 Indoor HV Earthing Switch is used for 3 phase rated voltage 40.5kV, AC 50Hz power system , high voltage switchgear with KYN61-405, high voltage electrical equipment maintenance as the use of ground fault protection.
Published in2018-08-20
2295 ViewsDetailed description
Product Description
JN22-40.5/31.5 Indoor HV Earthing Switch is used for 3 phase rated voltage 40.5kV, AC 50Hz power system , high voltage switchgear with KYN61-405, high voltage electrical equipment maintenance as the use of ground fault protection. The switch conforms to the national standard GB1985-2004 " AC high voltage disconnectors and earthing switches" and IEC62271-102.
- Altitude: ≤1000m
- Relative humidity: monthly average ≤90%; daily average: ≤95%
- Earthquake intensity: ≤8 degree
Environment condition
- Ambient temperature: -25oC~+40oC- Altitude: ≤1000m
- Relative humidity: monthly average ≤90%; daily average: ≤95%
- Earthquake intensity: ≤8 degree
Technical Data
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Rated?voltage?(kV)
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35
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|
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Max.?voltage?(kV)
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40.5
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|
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Rated?short-time?withstand?current?(thermal?stability)?(kA)
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31.5
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|
|
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4
|
|
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Rated?short-circuit?making?current?(kA)
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80
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|
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Rated?peak?withstand?current?(dynamic?stability)?(kA)
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80
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|
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Inter-pole?center?distance?(mm)
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350,?400
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|
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Rated?insulation?level
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1min.PF?withstand?voltage?(kV)
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95
|
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Lightning?impulse?withstand?voltage?(kV)
|
185
|
|
Outline Dimension
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