1.Whole mechanism’s advantage
Operating mechanism’s structure is simple, operation is reliable, it goes with strong commonality, can be used in different specifications.
The modularized secondary controlling circuit panel adopts auto-fastening connection-peg, which is convenient for replacing and also ensure the reliability of the electric connection.
The coil is whole sealing designed, keeping the coil out of moisture.
Superficial treatment: 80% mechanical parts apply Ni-P alloy treatment, greatly improved spare parts' antiseptic power, assure machine's stable quality all the time.
Brief structure and reliable operating principle, thoroughly avoid some faults, such as can't keep making, can't break and so on, meanwhile, reduce release power
High powered breaking buffer will reduce moving-contact overswing or rebounding extent when circuit breaker is in process of breaking, thus reduced the rate of re-arcing when breaking, assured the vacuum interrupter bellows’ mechanical endurance.
Main technical specification of VBDc/R-24P
1 min power frequency withstand voltage
Rated lightning impulse withstand voltage
Rated short circuit breaking current
Rated thermal stable current (effective value)
Rated short circuit making current (peak)
Rated dynamic stable current (peak)
Breaking times of rated short circuit breaking current
Rated thermal stable time
Rated operating sequence