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VCB

 

 

VCB(Vacuum Circuit Breaker)


 

 

 



 

The ADVAC series is a complete line of ANSI-rated vacuum circuit breakers offering power distribution system customers the advantages of the latest technology -- technology that reduces ownership costs through improved reliability and maintainability. ADVAC breakers are available as drawout breakers with modules for metal-clad switchgear, or as compact fixed-mount breakers for retrofits and stationary applications.

Ratings
Nominal voltage class (kV) 5 - 15
Nominal MVA class 250 - 1000
Rated voltage RMS (kV) 3.8 - 15

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G-VCB(Generator Vacuum Circuit Breaker)



 

 



 

Siemens Power Transmission and Distribution (PTD) has expanded its range of products upwards with the new high current and generator circuit breaker 3AH37. The circuit breaker can handle operating currents up to 6300 A at 17.5 kV and short-circuit breaking currents up to 72 kA. The first vacuum generator circuit-breaker worldwide type-tested according to the criteria of the generator circuit-breaker standard IEE Std C37.013 was the 3AH38. With a rated voltage of 17.5 kV, it switches operating currents up to 4000 A and short-circuit breaking currents up to 72 kA. These circuit-breakers developed for switching functions in power plants and in industry can be operated with no maintenance, thereby reducing life cycle costs.

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