 Specification:
KYN28-24 metal-clad withdrawable switchgear(as switchgear hereafter called abbr.Switchgear)is an indoor units which is desighed for 24KV,3-phase,50/60Hz electric pwer system,mainly used for Power station,Substation,Power distributon infactories and mines,and high buildings,as well as for controlling,protecting and monitoring circuit.
The switchgear has such functions as to avoid error operating,loaded moving truck,closing the circuit-breaker schneider while the earthing switch in the closed place,close charged earthing switch,faulseentering electrict space,etc.The switchgear is equiped with the good fuction VD4,VS1,VN1,VN2 abb,mitsublishi, switchgear,siemensseries high-voltage vacuum circuit breaker and fix-enclosed circuit breaker.The secondary circuit is equipped with advanced control & protection elements;the busber select thermoplastic insulated metrials or epoxy resin-daubed isolution ways.Optimize electric-pole form,the structure of the switchgearis firmed.
The switchgear is the distribution equipment with aduanced technology,stable functions,rational structure,easy to be used,and safety.
Main technical data for the switchgear:
|
|
kV
|
24
|
|
|
Hz
|
50
|
1 min power-frquency withstand voltage(eff.)
|
kV
|
Phase to phase Phase to earth 65 50,Isolate Broken 79 65
|
lightning impulse withstand voltage(peak)
|
kV
|
125 95,145 110
|
|
vice-control circuit frequency withstand voltage
|
V
|
2000
|
|
rated current
|
A
|
630,1250,1600,2000,2500,3150
|
Rated short circuit breaking current (eff.)
|
kA
|
20,25,25,31.5
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|
Rated short circuit closing current (peak value)
|
kA
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50,50,63,80
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|
Rated short time withstand current(4s)
|
kA
|
20,25,25,31.8
|
Rated peak value withstand current
|
kA
|
50,63,63,80
|
|
vice-control circuit rated voltage
|
V
|
D.C or A.C 110/220
|
|
|
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IP4X(Circuit-breaker space door opened
or isolated gap is IP2X)
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|
