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Outdoor high voltage vacuum circuit breaker

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ZW32-12 Type Outdoor High Voltage Vacuum Circuit Breaker

Application

ZW32-12 type outdoor high voltage vacuum circuit breaker is 3-phase AC50/60Hz outdoor power distribution equipment with the rated voltage of 12kV. It is mainly used to break and close the load current, over load current, and short circuit current in the electric power system. It fits to be used to protect and control the circuit in substation, mining and industrial enterprises. And the frequently operation places such as the rural power network. It can also be the section switch of power grid, after adding controller, distribution network automation is available.

Technical parameter

No.

Item

Unit

Value

1

Rated voltage

kV

12

2

Rated frequency

Hz

50

3

Rated current

A

630

4

Rated short-circuit breaking current

kA

20

5

Rated peak withstand current

kA

50

6

Rated short-time withstand current (4s)

kA

20

7

Rated short circuit close current (peak)

kA

50

8

Mechanical life

times

10000

9

Rated short open circuit current switching frequency

times

30

10

1 min power frequency withstand voltage(wet)(dry) alternate with, on/fracture

kV

42/48

11

Lightning impulse withstand voltage(peak) relative to ground/fracture

kV

75/85

12

Secondary loop 1min power frequency withstand voltage

kV

2

 

 






















ZW32-12FG/T630-25 12kv remote control auto recloser circuit breaker

Overview:

ZW32-12FG/T630-25 Type Outdoor high voltage vacuum circuit breaker is a outdoor distribution equipment with AC 50Hz,rated voltage 12kV and three-phase ac. It is mainly used for open circuit power distribution network and close the load current, overload current, short circuit current in power system.It is suitable for the transformer substation and factory power distribution system for protection and control use. Especially suitable for urban power grid and rural power grids.

 

Service conditions:
1. Ambient Temperature: -40~+65daily temperature≤25;
2. Altitude: ≤2000m
 
3. Wind speed: ≤35m/s
4. Earthquake intensity: ≤8
5. Anti-fouling property: IV level
6. Installation site: Not putting inflammable, explosive, chemical corrosion.

 

Technical parameters:

NO.

Item

Unit

Numeric

1

Nominal Voltage

kV

12

2

Rated Frequency

Hz

50

3

Rated Current

A

630/1250

4

Rated Short-circuit Breaking Current

kA

20

5

Rated Stability rated current

kA

50

6

RMS/Rated the rmal stabilization

kA/S

20/4

7

Mechanism life

times

10000

8

Rated short-circuit closing breaking Number

times

30

9

Rated operating sequence

O-0.3s-CO-180s-CO

10

Rated breaking current number

tmes

10000

11

Rated short-circuit close-open current

kA

50

 

12

 

1min Power-frequency withstand

Dry

kV

42/48

Wet

kV

34

13

Lighting impulse withstand voltage(Peak Value)

kV

75/85

14

Secondary circuit 1min Power-frequency withstand

kV

2

 








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