
ZW20AF-12 outdoor on-column circuit breaker
ZW20AF-12 outdoor on-column circuit breaker (referred to as boundary switch) is outdoor distribution equipment with rated voltage of 12 kV and three-phase AC 50 Hz. It is suitable for outdoor installation on column, with manual, electric and automatic operation functions (requiring supporting controller). It adopts vacuum interrupter and SF6 gas to strengthen insulation protection against ground, and is mainly used to break and close load current, overload current and short circuit current in power system. It is suitable for protection and control in power distribution system of substations and industrial and mining enterprises, and is more suitable for rural power grid and places with frequent operation. This product is matched with controller, which can meet the requirements of power distribution automation system and reliably and effectively complete the traditional recloser function.
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Product overview:
ZW20AF-12 outdoor on-column circuit breaker (referred to as boundary switch) is outdoor distribution equipment with rated voltage of 12 kV and three-phase AC 50 Hz. It is suitable for outdoor installation on column, with manual, electric and automatic operation functions (requiring supporting controller). It adopts vacuum interrupter and SF6 gas to strengthen insulation protection against ground, and is mainly used to break and close load current, overload current and short circuit current in power system. It is suitable for protection and control in power distribution system of substations and industrial and mining enterprises, and is more suitable for rural power grid and places with frequent operation. This product is matched with controller, which can meet the requirements of power distribution automation system and reliably and effectively complete the traditional recloser function.
The circuit breaker meets the technical standards of GB/T 1984-2014, GB/T 11022-2011 and IEC60056.
Technical parameter:
Project name |
Unit |
Data |
|
Rated voltage (kV) |
KV | 12 | |
Rated frequency |
Hz | 50 | |
Rated current |
A | 630 | |
Rated short circuit breaking current |
KA | 20 | |
Rated peak withstand current |
KA | 50 | |
Rated short-circuit withstand current |
KA | 20 | |
Rated short-circuit closing current |
KA | 50 | |
Rated operation sequence |
Breaking—0.3S—closing breaking—180S—closing breaking |
||
Rated short circuit duration |
S | 4 | |
Mechanical life |
time |
10000 | |
The number of times of rated current breaking |
time |
10000 | |
The number of times of rated short circuit breaking |
time |
30 | |
Power frequency withstand voltage 1min |
(Wet) phase to phase, to ground |
KV | 34 |
(Dry) phase to phase, to ground/port |
KV | 42/48 | |
Lightning impulse withstand voltage, phase to phase, to ground/port |
KV | 75/85 | |
1 min power frequency withstand voltage of secondary circuit |
V | 2000 |
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Tel:+86-371-55033377
Fax:+86-371-55033377
Email:hnyuhe@vip.126.com
Factory address: North Section of Xueyuan Road, Luoxin Industrial Cluster Area, Luoyang City
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