ZW32-12 outdoor vacuum circuit breaker (hereinafter referred to as circuit breaker) is an outdoor distribution equipment with rated voltage of 12kV and three-phase AC of 50Hz. It is mainly used to break and close the load current, overload current and short circuit current in the power system.
ZW32-12 outdoor vacuum circuit breaker (hereinafter referred to as circuit breaker) is an outdoor distribution equipment with rated voltage of 12kV and three-phase AC of 50Hz. It is mainly used to break and close the load current, overload current and short circuit current in the power system. It is suitable for protection and control in power distribution systems of substations and industrial and mining enterprises, and places where rural power grids are frequently operated.
The circuit breaker has the characteristics of small volume, light weight, anti-condensation, maintenance-free, etc., and can adapt to harsh climatic conditions and dirty environment.
Model Meaning
ZW
32
–
12
/
T
630
–
20
G
–
□
↓
↓
↓
↓
↓
↓
↓
↓
Outdoor
Vacuum
Circuit
Breaker
Design
sequence
number
Rated
voltage(kV)
Ammunition handling mechanism
Rated
current(A)
Rated
short circuit
breaking
current(kA)
Tape
isolation
S hand
exercise
D electric
exercise
Meet The Standard
• GB1984 AC High Voltage Circuit Breaker;
• GB11022 “Common Technical Requirements for High Voltage Switchgear and Control Equipment Standards”;
• GB31.1-6 “High voltage transmission and transformation equipment insulation cooperation”;
• GB763 “Heating of AC high voltage electrical appliances during long-term work”;
• GB2706 “AC high voltage electrical equipment dynamic, thermal stability test method”;
• GB3309 “Mechanical Test of High voltage Switchgear at normal temperature”;
• DL/T593 “High voltage switchgear joint order technical conditions”.
Main Technical Parameters
Item
Units
Argument
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 closing current(peak)
kA
50
Mechanical life
time
10000
Rated short circuit breaking current breaking times
time
30
Power frequency withstand voltage(1min):(wet)(dry)phase to phase,ground/fracture
kV
42/48
Lightning impulse withstand voltage(peak)phase to phase,ground/fracture
kV
75/85
Secondary circuit 1min power frequency voltage
kV
2
Dimensions And Mounting Dimensions (mm)
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