ZW43-12(G) Outdoor high voltage vacuum circuit breaker

Overview

ZW43-12(G) outdoor high-voltage vacuum circuit breaker (hereinafter referred to as switch) is an outdoor high-voltage switchgear with three-phase AC 50Hz and rated voltage of 12kV. The switch is mainly used as a 10kV outgoing switch in a substation and a line protection switch for splitting and combining load current, breaking overload current and short-circuit current in a 10kV three-phase AC power system.

The circuit breaker meets the technical standards such as GB1984-2003 "High Voltage AC Circuit Breaker", DL/T402-2007 "High Voltage AC Circuit Breaker Ordering Technical Conditions" and DL/T403-2000 "12kV~40.5 High Voltage Vacuum Circuit Breaker Ordering Technical Conditions".

Model meaning

Normal use environment

1. Ambient air temperature: upper limit +40°C, lower limit -40°C;

2. Altitude: no more than 3000m;

3. Wind pressure: no more than 700Pa (equivalent to wind speed of 34m/s);

4. Air pollution degree: no more than grade IV;

5. Ice thickness: no more than 10mm;

6. There is no fire, explosion hazard, chemical corrosion and violent vibration places.

Technical parameters (see table)