The ZW32-12/T630(1250)-25 Primary and Secondary Fused Polemounted Circuit Breaker (hereinafter referred to as the circuit breaker) is an outdoor distribution equipment with a rated voltage of 12KV and a three-phase AC frequency of 50HZ. It is mainly used for breaking, closing, and handling load currents, overload currents, and short-circuit currents in power systems. It is suitable for protection and control in substations, industrial and mining power distribution systems, as well as in places with frequent operations in rural power grids. With the addition of a controller, it can achieve automatic distribution network functions.
Ambient condition
Altitude: Up to 2000 meters
Ambient Air Temperature: -45°C to +70°C; Daily Temperature Difference: 30°C
Wind Speed: ≤35m/s
Suitable for places without flammable, explosive, chemically corrosive, and severe vibration hazards.
Compliance with Standards
– GB1984 “AC High Voltage Vacuum Circuit Breaker”
– GB11022 “General Technical Conditions for High Voltage Switchgear”
– GB311.1 “Insulation Coordination for High Voltage Transmission and Transformation Equipment”
– DL/TS93 “Common Ordering Technical Conditions for High Voltage Switchgear”
– DL/T402 “Ordering Technical Conditions for AC High Voltage Vacuum Circuit Breakers”
– GB2706 “Methods of Dynamic and Thermal Stability Tests for AC High Voltage Apparatus’
– GB3309”Mechanical Tests on High Voltage Switchgear under Common Conditions”
– DL403 “Ordering Technical Conditions for 10-35kV Indoor High Voltage Vacuum Circuit Breakers”
