Outdoor vacuum circuit breakers
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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:
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
1. Ambient
Temperature: -40℃~+65℃，daily 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.
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