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Vbi Series Indoor Vacuum Circuit Breaker

Product Description

VBI series Vacuum circuit breaker, Indoor type
1.Description

VBI indoor high voltage vacuum circuit breaker is a three-phase AC 50/60HZ, rated voltage of 12kv and 24kv indoor swtichgear, control and prtotection for industrial and mining enterprises power plants and substations, electrical facilities, and for frequent operation place. Adopting Spring operating mechanism and circuit breaker integrated, design can be used as a fixed installation unit can also be equipped with special advance mechanism, the composition of handcart unit used. Some of the main circuit can use the whole solid seal post, in order to achieve saller circuit breakers, high reliability, maintenance-free, can be equipped with KYN28A and Other handcart switch cabinet in the home can alse be used with fixed XGN Switchgear.
2. Parameters
Technical Information
Technical Specification       
Rated voltageKV 12  24
Rated Short circuit breaking capacity 4sec.KA20/2531.54020/25 31.5
   630 1251250
1600
  1250
1600
  6301600
2000
 
630
  
Rated CurrentA 2500
3150
2000
2500
  2000
2500
  1250  1250  
   
4000
3150
4000
  3150
4000
Rated power frequencyHZ  50/60   
Power frequency withstand voltage 50HZ 1 minKV 45  65
Impulse withstand voltage 1.2/50μsKV 75  125
Peak withstand currentKA
Peak.

63

80

100

50/63
  
Making capacityKA638010050/63  
Operation sequencetimes/h      
Mechanism Endurancecycles  10000   

Overall and installation dimensions
Vbi Series Indoor Vacuum Circuit Breaker
 

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