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Outdoor High Voltage Vacuum Breaker

12kV Outdoor Vacuum Breaker

12kV Outdoor Vacuum Breaker

Mostly purpose ZW8-12/□series outdoor HV vacuum automatic circuit reciosers,are used for switching on/off load current, overload current and short circult current in three-phase power system with AC 50hz and rated voltafe 10~12KV matching with recloser controllers, the breaker can identify......

Mostly purpose
ZW8-12/□series outdoor HV vacuum automatic circuit reciosers,are used for switching on/off load current, overload current and short circult current in three-phase power system with AC 50hz and rated voltafe 10~12KV matching with recloser controllers, the breaker can identify current characteristics and realize repetitious autoeclosing or permanent fault isolation.with it own PT power.


use circumstance conditon
1. ambient temperature:+40℃~-40℃;
2. altitude:≤2000M(if the place is at higher altitude,enhance tated insuiation level)it should be custom-made for >2000M
3. wind pressure: ≤ 700PA(equivalent to wind speed 34m/s)
4. earthquake intensity: ≤Ⅷ
5. pollution class: Ⅳ
6. maximum day temperature difference: ≤25℃

Technic parameter

item

unit

parameter

rated voltage

KV

12

rated insulation level

power frequency withstand coltage

dry

42

wet

34

lightning impulse withstand voltage(peak value)

75

rated current

A

630;400;200

rated short circult breaking current

KA

20;16;12.5

rated operating sequence


o-0.3s-co-180s-co

breaking current frequency under rated shout circlt

times

30

rated short current switching current (peak value)

ka

50

rated peak value withstand current

KA

rated short time withstand current

ka

20;16;12.5

rated short circult duration time

s

4


Externality & Build in Dimension 

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