The advantages of ZW32-12 vacuum circuit breaker are as follows:
1. The shell is made of high-quality stainless steel with good corrosion resistance.
2. The insulation part adopts epoxy resin and silicone rubber insulation material, which has high insulation level and strong anti-pollution ability.
3. The operating mechanism is divided into two types: manual and electric. You can also install a remote control controller according to your own needs. .
4. The current transformer is made of high-quality magnetic conductive material and epoxy resin and silicone rubber load insulation, which has the advantages of large capacity, high precision level, maintenance-free, and high reliability.
Model Description
Z:Vacuum circuit breaker
W:Outdoor
32:Design Number
12:Rated voltage:12kV
▢: F:intelligeht type/blank(mannual type)/G:disconnector type
▢: Rated current:630A
▢: Rated short-circuit breaking current:20kA
Working Environment：
●Ambient temperature: not higher than +40°C, not lower than -40°C;
The relative humidity of the air: the daily average is not more than 95%, and the monthly average is not more than 90%;
●The altitude does not exceed 2000 meters;
●Wind pressure does not exceed 700Pa (equivalent to wind speed 34m/s);
● Earthquake intensity does not exceed 8;
●A place free from fire, explosion, serious pollution, chemical corrosion and severe vibration.
Main Technical Parameters
Parameter | Unit | Value |
Rated voltage | kV | 12 |
Rated frequency | Hz | 50 |
Rated current | A | 630 |
Rated short-circuit breaking current | kA | 20 |
Rated peak withstand current (peak) | kA | 50 |
Rated short-time withstand current | kA | 20 |
Rated short-circuit making current (peak value) | kA | 50 |
Mechanical life | times | 10000 |
Rated short-circuit breaking current breaking | times | 30 |
Power frequency withstand voltage (1min): (wet) (dry) phase-to-phase, to ground/to fracture | kV | 42/48 |
Lightning impulse withstand voltage (peak value) phase-to-phase, to ground/ to fracture | kV | 75/85 |
Secondary circuit 1min power frequency withstand voltage | kV | 2 |
Structure and Mounting Dimensions
Product Real Shot
Circuit Breaker Function Content
The function of ZW32-12 vacuum circuit breaker as an electrical switch :
①Close accurately
②The switch is reliably maintained in the closed position
③Accurately break the switch
④The switch is reliably kept in the breaking position
⑤Correctly execute the operation procedure and issue switching signals (including indication signals, control signals and interlock signals).
In the structural analysis of the ZW32-12 vacuum circuit breaker , the frame can be divided into the following units according to the functional structure modules.
(1) Energy storage mechanism unit
The unit completes energy storage → closing preparation.
The closing power of ZW32-12 vacuum circuit breaker generally does not exceed two aspects: energy storage spring or DC electromagnetic mechanism. Since the spring-operated mechanism enables the best matching of energy transfer and enables the same operating mechanism to be used for various circuit breakers with different breaking current specifications (only different energy storage springs need to be selected), it has the best cost performance ratio. Therefore, the more advanced circuit breakers are almost all spring-operated mechanism.
(2) Drive mechanism unit
The function of this unit is to close → close hold (lock) → close action; open → trip → open action.
Drive mechanism unit is mainly composed of four-rod mechanism or five-rod mechanism.
(3) Main drive unit
The main drive unit mainly includes the main drive shaft of circuit breaker, insulated push rod, adjusting head, connecting plate, etc. It is the bridge between the vacuum interrupter chamber operating mechanism and the dynamic guide column.
(4) Auxiliary unit
Such as switch buttons, switch status indication, auxiliary switches, terminal blocks and the necessary interlocking devices for circuit breakers, etc. It should be noted that the above functional units are not completely separate, but relatively independent, such as interlocking devices.
FAQ:
Q1: What's the rated voltage for ZW32-12 Vacuum Circuit Breaker?
A1:Rated voltege is 12kv/11kv/10kv.
Q2:Could I add an isolation knife switch?
A2:Yes,you can add isolation switches,PT, intelligent controllers, etc..
Customized according to your needs.
Q3. How to install ZW32-12 Vacuum Circuit Breaker?
A3: The installation method is very simple, for details,
please look through our website:how to install ZW32 vacuum circuit breaker
Hot Tags: zw32-12 vacuum circuit breaker, China, suppliers, manufacturers, factory, wholesale, cheap, ZW7 40 5 central mount type outdoor vaccum circuit breaker, medium voltage breaker, ZW32 Outdoor HV Vacuum Circuit Breaker, ZW20 12 Outdoor HV Vacuum Circuit Breaker, mv circuit breaker, ZW8 12
