Vacuum High Voltage Circuit Breaker 17.5kV Outdoor Vacuum Circuit Breaker

20/25/31.5kA Indoor Vacuum Circuit Breaker

Product introduction
The MAC series indoor circuit-breaker is our independent developed new generation 17.5 kv vacuuum circuit breaker.
Its main characters as follows: the conductance circuit is installed in an three-phase insulating sleeve , its mechanism
and conductance circuit adopts front and rear layout. And the mechanism is our deveoped new design, with simple
construction, reliable operation,and rich manufacturing experiences of million sets , used and learned by many high-end
vacuum circuit breaker manufacturers.


Technical standard
All the technical parameters of breaker completely satisfy the Standards Of GB1984 AC Highvoltage Breaker,
GB/T 11022 -1999 Common Specifications For High-Voltage Switchgear And Controlgear Standards,
China Power Sector Standards DL403.Also meet the requirements of IEC62271-100, IEC56 and other main
industrialized country’s similar standards


Testing
MAC series circuit breaker have passed has passed following test , to ensure the product’s safe Operation.
Type tests : power-frequency withstand voltage tests , lighting impact withstand voltage tests, temperature rising tests, short-time withstand current tests , peak withstand current tests ,short circuit breaking ability tests , mechanical lift tests,etc.
Routine test before out of factory: mechanical performance test, power-frequency withstand voltage tests of the main circuit ,
insulating property tests on control and auxiliary circuits ,measurement of the resistance of the main circuit , interlock operating
tests , mechanical operating tests, Electrical Equipment operating tests.


Scope of application
It is universally used in power plant , electric network , metallurgy industry petrochemical industry and infrastructures,
such as airport , subway, building. MAC circuit breakers can be applied to control and protect cable , trolley wire,transformer,
generator and capacitor bank in distribution system


Safety
MAC circuit breaker possesses perfect mechanical and electric interlock equipment , meanwhile ,its high reliable operating
performance and mechanical life , coordinated with matched switchgear cabinet ,to ensure normal power distribution , operator
and equipment’s safety.