Pole Mounted Circuit Breakers Automatic Circuit Reclosers Load Break Switches Feeder Terminal Units Fuse Cutouts Disconnect Switches Arrester Pole-Mounted Overhead Stations High Voltage Insulators
Pole Mounted Circuit Breakers Automatic Circuit Reclosers Load Break Switches Feeder Terminal Units Fuse Cutouts Disconnect Switches Arrester Pole-Mounted Overhead Stations High Voltage Insulators

24kV Intelligent Pole-Mounted Circuit Breaker (Spring Actuator)

ZNJWV1-24/T630-20

24kV Intelligent pole-mounted circuit breaker, three poles design, is mainly applicable for 24kV distribution network to interrupt the short circuit and earthing false, as demarcation switch, sectionalizer and connecting switch. It can interconnect with the main station to realize distribution network automation, together with intelligent feeder terminal unit.

24kV Intelligent Pole-Mounted Circuit Breaker (Spring Actuator)

ZNJWV1-24/T630-20

24kV Intelligent pole-mounted circuit breaker, three poles design, is mainly applicable for 24kV distribution network to interrupt the short circuit and earthing false, as demarcation switch, sectionalizer and connecting switch. It can interconnect with the main station to realize distribution network automation, together with intelligent feeder terminal unit.
24kV Intelligent Pole-Mounted Circuit Breaker (Spring Actuator)
24kV Intelligent Pole-Mounted Circuit Breaker (Spring Actuator)
24kV Intelligent Pole-Mounted Circuit Breaker (Spring Actuator)

Product introduction:

We encapsulate the vacuum interrupter, main circuit live parts, high-accuracy voltage and current sensors, and high voltage pickup capacitors inside the cycloaliphatic-epoxy poles, based on decades of experience in solid insulation technology, eliminating all the partial discharge problems. The poles can pick up the voltage or current signals from power source side and secondary side at the same time, also the capacitor can power supply the intelligent electronic device (IED).

The actuator is small and spring actuated, located in the sealed tank. The circuit breaker can be operated open and close manually, automatically and remotely.

It features as automatic reclosing enable and disable, remote/local lockout and mechanical lockout for switch operation.

Note: Technical datas and sketches are only for your reference. Such details in our contact prevail.


Model annotation:

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Technical parameter:


NOItemUnitZNJWV1-24/T630-20
1Interrupting medium-Vacuum
2Insulation medium-Solid insulation
3Rated voltage kV24
4Rated frequencyHz50
5Rated currentA630
6Rated short-time withstand currentkA20
7Rated short circuit breaking currentkA20
8Rated peak withstand currentkA50
9Duration of rated short circuit s4
10Interrupting times of short circuit current≥30
11Rated operation sequence-O-0.3s-CO-180s-CO
12Rated lightning impulse withstand voltage(1.2/50μs,peak)between phases, phase to earth kV125
between interrupters kV145
13Rated power frequency short-time withstand voltage (1min)between phases, phase to earth kV65
between interrupters kV79
14Partial discharge of the whole breaker(CS, VS and pickup capacitor are included)Testing voltagekV16.63
Partial discharge pC≤20
15Main resistanceμΩ≤80
16Mechanical operation lifetime≥10000
17Actuator type-Spring actuator
18Operation type-Motor,with manually opening and closing
19Operation voltage VDC24
20Closing timems≤60
21Opening timems≤40
22Synchronism in closing and openingms≤2 
23Current sensors inside the poleRated current ratiophase sequence600A/1V
Zero sequence20A/0.2V
Accurancyphase sequencemetering 0.5s,Protection 5P10
Zero sequenceclass 1,Protection 10P10
Temperature range-40℃~70℃
Implementation-low power electro-magnetic
24Voltage sensors inside the poleRated voltage ratiophase sequence(24kV/√3)/(3.25V/√3)
Zero sequence-
Accurancyphase sequenceclass 0.5
Zero sequence-
Temperature range-40℃~70℃
Implementation-capacitor divider
Sampling type-power side and load side voltage pickcup
25Capacitors inside the polepower supply-built-in capacitor power supply
Installation -capacitor power supply integrated in the pole
Single-phase rated output powerW≥10±10%
26Remote/Local lockout-optional
27Re-close enable / disable function-optional
28Manually close lockout-optional
29Closure protection level-not lower than IP67
30Circuit breaker liftimeYear20


Appearance size:

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Installation indication:

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