ZW27A-12/630-20 outdoor oil-free high-voltage vacuum circuit breaker on a pole

/Outdoor oil-free high-voltage vacuum circuit breaker on a pole - product description
/The oil-free outdoor high-voltage vacuum circuit breaker on a pole combines the advantages of current domestic pole-mounted vacuum circuit breakers
Absorbs Kakashi Toshiba The company's mature experience in column-mounted automatic segmenters is ahead of similar domestic products in terms of performance.
It better meets the needs of the electricity department and is my country's leading vacuum circuit breaker in this field.
This circuit breaker is suitable for AC three-phase power systems up to and below. It is used to break and close load current, overload current
and to break short-circuit current.
Two product features
Use vacuum interrupter to extinguish arc
Use air silicone rubber engineering plastic composite insulation
A voltage transformer can be installed inside the switch to provide operating power and voltage The sampling plan is flexible and can reserve automatic power distribution interfaces to facilitate the development of distribution automation
Mainly used for overhead lines as a switching load current, overload current and breaking short-circuit current
With The controller combination can be used as an automatic recloser or automatic segmenter.
Three main technical parameters
Rated voltage
Rated insulation level altitude power frequency withstand voltage pole to ground/fracture dry type
Lightning impulse withstand voltage pole to ground wet type
Lightning impulse withstand voltage fracture
Rated frequency
Rated current
Rated short-circuit breaking current
Rated operating sequence/
Rated short-circuit current breaking times
Rated short-circuit making current peak value
Rated peak withstand current
Rated short-time withstand current
Full breaking time
Rated short-circuit duration
Mechanical life times< br/>Contact operating voltage and auxiliary circuit rated voltage AC or DC
Rated current of overcurrent release
Four main mechanical parameters
Contact spacing
Contact overtravel
Average opening speed/
Average closing speed/
Contact closing bounce time
Three-phase opening synchronicity
Closing time
minutes Maximum rated operating voltage for gate time
Minimum operating voltage for shunt tripping
DC resistance of final phase circuit
The center distance between phases is measured from the arc extinguishing chamber end
The cumulative thickness of allowable wear of moving and static contacts
Rated contact spring pressure in closed state