JN22-40.5 Indoor Disconnector HV Grounding Isolation Switch for 40.5kV AC 50Hz Power System

Classification:Isolation switch

Inside Road & Administration Industry & Trading Garden,Houshan Industry Area,Fuzhou City,Fujian Province

0591-22806687 0591-22806697

0591-22806667

bs@china-grid.com.cn

Overview
Description:

JN22-40.5/31.5 indoor high voltage grounding switch is an advanced level product with high technical parameter performance developed by Xi'an High Voltage Electric Power Research Institute. After comprehensive assessment, its performance meets the requirements of GB1985-89 《AC high voltage isolation switch and grounding switch》

Applicable to 40.5kV AC 50Hz power system, can be used with KYN61-40.5 and other types of high voltage switchgear, can also be used as grounding protection for high-voltage electrical equipment maintenance.


Use environment:

Ambient air temperature: upper limit +40 ° C, lower limit -10 ° C

Altitude: no more than 1000 meters

Earthquake intensity: no more than 8 degrees

No fire,explosion hazard, severe dust, chemical corrosion and severe vibration

Project Unit Data
Rated voltage KV 40.5
Rated short-time withstand current HZ 31.5
Rated short circuit duration S 4
Rated short circuit closing current KA 80
Rated peak withstand current KA 80
Center distance between poles mm 280; 300; 350
Rated insulation level 1minPower frequency withstand voltage KV phase to ground and interphase 95
Lightning impulse withstand voltage 185
L (Interpase distance) L1 L2
280 750 1060
350 890 1200
Contact Us
0591-22806687 0591-22806697
0086-13950298099
0591-22806667
Inside Road & Administration Industry & Trading
      Garden,Houshan Industry Area,Fuzhou City,Fujian Province
Sampras@china-grid.com.cn
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