● With capacity for open/close breaker
CKWZ outdoor vacuum breaker can open and close
load/overload/short-circuit current of power system, which can
protect the outside feeder.
● With manual and motor operating mechanism
---- Manual Operating Mechanism
＊Closing Operation
Pulling the stored-energy handle to move the gear sleeve, then gear
shaft rotates and drive the master gear to rotate. The
stored-energy spring is elongated gradually and drives the
mechanism to store energy. Once the stored-energy spring crosses
the center line, it will be hold by closing latch. The mechanism is
ready for closing.
When operate for closing, it needs to pull the closing handle, then
the tripping plate is driven and make the closing tripping
half-shaft rotate anticlockwise to release the holding of
stored-energy. The stored-energy spring will release the power and
make the cam rotate and drive the action of the output crank arm.
After closing, opening latch will fasten the half-shaft and make
the circuit breaker in closing status.
When the mechanism in status of closing, it needs to operate the
stored-energy system again and the stored-energy spring is
elongated again. Once the spring crosses the center line, it will
hold by closing latch, meanwhile, the interlocking between the
output crank arm and closing half-shaft will fasten the closing
latch and make the spring not to release energy. It can prevent the
no-load closing for mechanism.
When the mechanism in opening status, it can’t be closing until the
input crack arm and closing half-shaft release the interlocking.
＊Opening & Overcurrent Tripping Operation
Pulling the closing handle to move the trip lever, then the
half-shaft rotates anticlockwise and make the opening latch
release, finally the circuit breaker is opening. Similarly, if the
current exceeds the setting value when it goes through the
overcurrent tripping device, then the half-shaft will release from
the opening latch by the action of overcurrent coil, finally the
circuit breaker is opening.
---- Motor operating mechanism
＊ Stored energy
Pulling the stored-energy handle or providing power to make the
electromotor rotate the gear sleeve, both of these ways can make
the gear shaft rotates and drive the master gear to rotate. Then
the stored-energy spring is elongated gradually and drives the
mechanism to store energy. Once the stored-energy spring crosses
the center line, it will be hold by closing latch. The mechanism is
ready for closing.
＊ Closing
When operate for closing, it can pull the closing handle or apply
voltage to the closing release, then the tripping plate is driven
and make the closing tripping half-shaft rotate anticlockwise to
release the holding of stored-energy. The stored-energy spring will
release the power and make the cam rotate and drive the action of
the output crank arm. After closing, opening latch will fasten the
half-shaft and make the circuit breaker in closing status.
＊ Reclosing
When mechanism in the status of closing, it needs to operate the
stored-energy system again and the stored-energy spring is
elongated again. Once the spring crosses the center line, it will
hold by closing latch, meanwhile, the interlocking between the
output crank arm and closing half-shaft will fasten the closing
latch and make the spring not to release energy. It can prevent the
no-load closing for mechanism.
When mechanism in the status of opening, it can’t be closing until
the input crack arm and closing half-shaft release the
interlocking.
When the mechanism can store energy again after closing, then it
can ready for single shot reclosing by procedure of
opening-0.3s-closing & opening.
＊ Opening Operation & Overcurrent Trip
After the mechanism connects with circuit breaker tank and finish
closing, then pulling the opening handle to move the trip lever of
the mechanism opening half-shaft, and then the opening half-shaft
rotates anticlockwise. Or applying voltage to the opening coil and
make it move the trip lever of the opening half-shaft, and then the
opening half-shaft rotates anticlockwise. Both of these ways can
make the opening latch release, and then the circuit breaker is
opening.
When the current exceeds the setting value when it goes through the
overcurrent coil, the opening latch will release by the action of
the overcurrent tripping device, then the circuit breaker is
opening.
● With flexible configuration
In order to satisfy the different requirements for users, CKWZ can
be configured by flexible way, for example:
---- Standard type / Circuit-breaker & disconnecting switch
all-in-one type
---- Motor operating mechanism & manual operating mechanism
---- Two-phase CT/ Three-phase CT (or two-phase CT+ zero-sequence
CT)
---- Protection / Protection- Metering
---- Multiple current transformation ratio/ Current transformation
ratio
---- Dacromet enclosure / Stainless steel enclosure
If you have special request for configuration, please let us know
and we can do as customized product.
