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ZN85-40.52000-31.5 Indoor high voltage vacuum circuit breake
Release time:2015-06-05 22:31 Read:Time


 
●   Overview

The circuit breaker is suitable for use in 40.5 KV three-phase ac 50 hz system, available for industrial and mining enterprises, power plants and transformer substations for points and load current, overload current, short circuit current, and apply a frequent operation occasion.

●  Model implication



●The data as follow:
Project Unit Ginseng?/TD>
Rated voltage KV 40.5
power frequency withstand voltage
(1 Min   effective values )
 
KV 95
Lightning shock resistance(Peak) KV 185
Rated frequency Hz 50
Rated current A 1250,1600,2000
rated short time current KA 25,31.5
Rated peak withstand current KA 63,80
rated duration of short-circuit
 
s 4
Rated short circuit breaking current
 
KA 25,31.5
Rated peak with stand current KA 63,80
Rated operating sequence   0-0.3s-C0-180s-C0
 
Project Unit Data
Break time ms < 80
Rated big open circuit current open circuit Times 20
rated single capacitor bank breaking current A 630
rated back-to-back capacity bank breaking current A 400
Rated operation V -110/-100,-220/-220
mechanical life 次Times 10000


●  Outline Mounting Dimension

 
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