AB-3S-12 Permanent-Magnet Pole-Mounted Circuit Breaker
The AB-3S-12 series outdoor high-voltage three-phase permanent-magnet vacuum circuit breaker can serve as a switch on the 10 kV side of the main transformer in a 35 kV substation and for 10 kV outgoing lines, as well as a pole-mounted switch in distribution networks. When combined with various control units manufactured by our company, it readily enables control, protection, measurement, and communication functions, making it the preferred equipment for achieving distribution network automation and miniaturization.
Keywords: High- and low-voltage complete sets – packaged substations – ring main units
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Product Description
Product Overview
The AB-3S-12 series outdoor high-voltage three-phase permanent-magnet vacuum circuit breaker can serve as a switch on the 10 kV side of the main transformer in a 35 kV substation and for 10 kV outgoing lines, as well as a pole-mounted switch in distribution networks. When combined with various control units manufactured by our company, it readily enables control, protection, measurement, and communication functions, making it the preferred equipment for achieving distribution network automation and miniaturization.
Product Features
● Employs a magnetostrictive (permanent-magnet) actuation mechanism, significantly reducing the number of components, substantially lowering the closing power requirement, ensuring stable and reliable operation, and eliminating the need for routine maintenance.
● Uses imported outdoor epoxy resin as the external insulation material, which is lightweight, has a service life of over 15 years, exhibits excellent weather resistance, is oil-free and SF6-free, and meets environmental protection requirements;
● Short operating time, enabling rapid fault clearance and flexible, convenient coordination of protective functions;
● Powered by solar cells or a CT, enabling electric operation without the need for an external power supply;
● A dedicated remote control can be used for remote operation, enabling power on/off operations without climbing the pole.
● An integrated high-voltage isolating switch is selected, resulting in a compact structure and extremely convenient installation and maintenance;
● Stainless steel enclosure, maintenance-free.
Main Technical Parameters of the Product
|
Serial Number |
Name |
Unit |
Parameters |
|
|
1 |
Rated voltage |
kilovolt |
12 |
|
|
2 |
Rated Insulation Level |
1 min power-frequency withstand voltage (RMS) |
kilovolt |
42 |
|
Lightning Impulse Withstand Voltage (Peak) |
kilovolt |
75 |
||
|
3 |
Rated frequency |
Hertz |
50 |
|
|
4 |
Rated current |
A |
630-1250 |
|
|
5 |
Rated short-circuit breaking current |
kA |
20 |
|
|
6 |
Rated Short-Circuit Making Current (Peak) |
kA |
50 |
|
|
7 |
Thermal Stability Current (4 s) |
kA |
20 |
|
|
8 |
Dynamic stability current (peak) |
kA |
50 |
|
|
9 |
Rated Number of Breaking Current Cycles |
next |
30 |
|
|
10 |
CT ratio |
\ |
30-125/1(5) |
|
|
11 |
Operating supply voltage |
V |
-220(-110) |
|
|
12 |
Creepage distance to clearance |
|
≥31 |
|
|
13 |
Number of machine cycles |
next |
10000 |
|
Contact Us
Address: No. 26, Tuan Shan East Road, Economic Development Zone, Lishui District, Nanjing City, Jiangsu Province
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