ZW32-12/24G Outdoor high voltage vacuum circuit breake
Summary
ZW32 outdoor vacuum circuit breaker is for the rated voltage 12KV / 24KV, three-phase AC 50HZ outdoor distribution equipment. Mainly used for breaking and closing the load current, overload current and short circuit current in the power system. It apply For substations and industrial mining enterprises in the power distribution system for protection and control purposes, and rural power grid frequent operation places.Mainly used to open and close of electric power system load current, overload current and short circuit current. Suitable for transformer substation and industrial and mining enterprises for protection and control in power distribution system, more suitable for the urban and rural power grid and the site of frequent operation of construction and reform.
ZW32 vacuum circuit breaker with spring energy storage operation mechanism, can be manually operation, motor operation and remote control points and closing operation. Available in circuit breaker side with isolating switch, formation of outdoor high voltage vacuum circuit breaker a outdoor high-voltage isolating switch electric appliances, increases the visible isolation, and has reliable interlocking operation. According to user requirements, can communicate with the corresponding controller with high pressure vacuum automatic reclosing, automatic segmentation, self-provided power operation, is the realization of the ideal equipment of power distribution automation system. Adopt high voltage transformer external structure, integrated installation. ZW32-12 g / 1250-20, ZW32-12 series column type outdoor high voltage vacuum circuit breaker is three-phase ac 50 hz, rated voltage of 12 kv outdoor high voltage switch equipment. Apply to open and close the city or rural power distribution system load current, overload current and short circuit current. Circuit breaker for the miniaturization of new design, fully closed structure, unique arcing chamber packaging technology, sealed performance is good, moistureproof, prevent condensation, suitable for high temperature and wet area. Zw32-12 g disconnecting switch is combination by zw32 disconnecting switch is composed of two parts.
The circuit breaker with small size, light weight, anti-condensation, maintenance-free features, can adapt to harsh climatic conditions and polluted environment.
Ambient temperature
1. Ambient temperature: -40 ℃ ~ 40 ℃, daily temperature difference not exceeding 20 ℃
2. Pollution level: no greater than level 4
3. Altitude: no more than 2500mm
4. Wind pressure: no more than 700pa
5. Places free from fire, explosion, chemical corrosion
6. No regular strenuous exercise, earthquake intensity not exceeding 8 degrees
Structure description
1. The circuit breaker has the characteristics of stable and reliable breaking performance, no combustion and explosion risk, no maintenance, small size, light weight and long life.
2, the circuit breaker adopts the completely closed structure, the sealing performance is good, is helpful to improve the moisture-proof, the anti-condensation performance, specially applies to the cold or the damp area use.
3, the three phase pillar and current transformer adopt the imported outdoor epoxy resin solid insulation, or the indoor epoxy resin outsourcing silicone rubber solid insulation, which has the characteristics of high and low temperature resistance, ultraviolet resistance, aging resistance and so on.
4.the circuit breaker can install two phase or three phase current transformer for overcurrent or short circuit protection, and can also provide current acquisition signal to intelligent controller.
5. The circuit breaker can take out the isolating switch with three-phase linkage. It has obvious breakage in the state of the switch opening, and has the anti-error interlocking device between the circuit breaker body and the circuit breaker body. Circuit breakers can only be operated when the isolator is completely closed or fully opened. The insulator can be connected with arrester support and easy to maintain.
Main Technical Parameters
Items
Unit
Parameters
Rated voltage
KV
12
24
Rated Frequency
Hz
50
50
Rated Current
A
630
630
Rated short circuit breaking current
KA
20
20
Rated Peak withstand current
KA
50
50
Rated short time withstand current
KA
20
20
Rated short circuit current (peak)
KA
50
50
Mechanical Life
times
10000
10000
Rated short circuit breaking current times
times
30
30
Power frequency withstand voltage (1min
) (Wet) (dry) phase to ground / fracture
KV
42/48
65/79
Lightning impulse withstand voltage (peak) phase, to ground / fracture
KV
75/85
125/145
Secondary circuit 1min frequency withstand voltage
KV
2
2