|ZW43-12 Type Outdoor HV AC Vacuum Circuit Breaker|
SummaryZW43-12 type outdoor HV AC vacuum circuit breaker is used to make and break load current, overload current and short-circuit current in the power system with rated voltage 12kV, three-phase AC 50/60Hz. The product is composed of a circuit breaker and a spring operating mechanism. It is applicable to substations, industrial and mining enterprises, unban and rural electric power networks, especially to those serious pollution environment and frequent operation places for power network control and equipment protection. The product conforms to the standards of IEC62271-100 & GB1984: AC high voltage circuit breaker, IEC60694 & GB/T11022: HV general technical requirement of switch and control apparatus.
Ambient conditions1. Altitude: ≤2000m;
2. Ambient temperature: -40℃～+45℃；diurnal temperature rang ≤25℃;
3. Wind speed: ≤35m/s, equivalent to wind pressure of 700Pa;
4. Earthquake intensity: ≤grade 8;
5. Relative humidity: monthly average ≤90%; daily average ≤95%;
6. Ice thickness: ≤10mm
7. Sunlight intensity: ≤1000W/m2
8. Pollution degree: ≤Ⅳ(GB5582);
9. Applicable occasions: no fire and explosion danger, no chemical corrosion and no frequent severe vibration.
Main function features1. The performance of the product is stable and reliable as the product adopts three-pillar type structure, and the vacuum arc-extinguishing chamber connects with the operating mechanism through insulation pulling rod;
2. Arc-extinguishing chamber, main conducting loop and insulation support are casted into an organic whole by epoxy resin with APG technology, and encapsulated with silicon rubber, it is provided with good anti-condensation performance and mechanical strength.
3. The switch adopts a high performance spring operating mechanism with the advantages of simple structure and long mechanical life, and with the functions of manual/electric energy storage and opening/closing operation.
4. An integrated isolation switch is optional for the product.
5. The product has the advantages of small size, novel appearance, light weight and easy installation.
6. The switch can be equipped with control terminal interface to apply to automation distributiong networks and the unattended substations.
Outline and installation dimension