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JN12-40.5/31.5 type indoor H.V earthed switch
JN12-40.5/31.5 type indoor H.V earthed switch
Supplier Info
[China Supplier]
Contact Person : Ms. Shan Yuki
Tel : 86-571-88334228
Fax : 86-571-88334228
Product Detail
JN12-40.5/31.5 type indoor H.V earthed switch can ensure device and servicemans safety.

General 

JN12-40.5/31.5 type indoor H.V earthed switch series indoor H.V electrical equipment, its function meets GB1985-89<<AC H.V disconnector and earthed switch>>and IEC129 requirement, apply to rated voltage 40.5KV, three phase AC 50HZ system. As the reliable earth of H.V electrical equipment when it is repairing,  to ensure device and serviceman’s safety.  

Operating Environment Condition:

Environment temperature:   -25°C~ +40°C   Average value below 35°C

Sea level elevation: not exceeding 2000m

Relative humidity: day average value not more than 95% month average value not more than 90%

Steam pressure day average value not more than 2.2×10-3Mpa   Month average value not more than 1.8×10 -3Mpa

Earthquake Intensity: not exceeding 8°

Filthy rank:II

Main technology data:

Rated Voltage :                           40.5kv

Most working voltage  :                    40.5kv

4s rated short time withstand current :      20kv        25kv        31.5kv   

Rated peak withstand current :               50KA       63KA        80KA 

Cut and shut:                             50KA       63KA  

Power frequency withstand voltage  :          95KV/min

Lighting shock withstand voltage  :           185KV 

Secondary circuit power frequency  :          2KV/min ;

JN12-40.5/31.5 type indoor H.V earthed switch

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