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ZN23 Indoor handcart type vacuum circuit breaker
Release time:2015-06-05 22:25 Read:Time


 

 
●Overview
ZN23-40.5 type vacuum circuit breaker is rated voltage 40.5 KV, three-phase ac 50 hz indoor high voltage electrical equipment, applicable to industrial and mining enterprises, distribution system such as substation, control and protection switch, especially suitable for metallurgy, points, such arc steelmaking industry should be the frequency of the control and protection equipment.

This product comply with GB1984-89 ac high voltage breaker standard


●The data as follow:
Parameter Name Unit Data
Rated voltage KV 40.5
Lightning impulse withstand voltage rating (peak) KV 185
Power frequency withstand voltage(1min) KV 95
Rated frequency Hz 50
Rated current A 1250.1600.2000
Rated short circuit breaking current KA 25,31.5
Rated tolerance current KA 25,31.5
Rated peak withstand current KA 63,80
Duration of rated short circuit current s 4
The rated short circuit breaking time ms ≈90
Rated peak with stand current KA 80
Rated operating sequence   分0.3-分合-180s-分合
closing time ms 50-85
opening time ms 40-85
Rated current disconnect 20
Rated current disconnect 10000
Rated capacity breaking current A 630
Energy storage motor rated power W 275
Energy storage motor rated voltage V AC/DC220.110
energy storage time S <15
Break-brake electromagnet rated voltage V AC/DC220.110
Over-current trip rated current A 5
Auxiliary switch rated current
 
A 10

●  Outline Mounting Dimension


 
 
Technical note: the total width for the handcart is 1180. The center of the wheel and the wheel is 1130 (positive)
 
Last one:ZN12-40.5 A series of indoor high voltage vacuum circuit bre
 
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