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Current position: PRODUCTS  /   SPECIAL ELECTRICAL APPARATUS  /   Indoor middle voltage AC. isolator and earth switch 12KV~40.5KV  /  

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JN22-40.5 Middle voltage earth switch

JN22-40.5 Middle voltage earth switch

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
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Detailed 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.

Environment condition

- Ambient temperature: -25oC~+40oC
- Altitude: ≤1000m
- Relative humidity: monthly average ≤90%; daily average: ≤95%
- Earthquake intensity: ≤8 degree

Technical Data


Rated?voltage?(kV)
35
Max.?voltage?(kV)
40.5
Rated?short-time?withstand?current?(thermal?stability)?(kA)
31.5
4
Rated?short-circuit?making?current?(kA)
80
Rated?peak?withstand?current?(dynamic?stability)?(kA)
80
Inter-pole?center?distance?(mm)
350,?400
Rated?insulation?level
1min.PF?withstand?voltage?(kV)
95
Lightning?impulse?withstand?voltage?(kV)
185


Outline Dimension



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