LW38-40.5 outdoor AC high voltage sulphur hexafluoride circuit breaker (hereinafter referred to as "circuit breaker") is an outdoor high-voltage power distribution switchgear with three-phase AC 50Hz and rated voltage of 40.5kV. It can be used to divide and match rated current and fault current, cast and cut capacitor group and conversion line. It is especially suitable for frequent operation or as a contact breaker. The circuit breaker uses SF6 gas as the arc extinguishing and insulating medium, and is installed outdoors. It adopts an elevated porcelain column structure. The circuit breaker complies with GB 1984-201 4 “High Voltage AC Circuit Breaker”, DL/T 402-2016 “High Voltage AC Circuit Breaker” and JB/T 9694-2008 “High Voltage AC Sulfur Hexafluoride Circuit Breaker” and other technical standards.

Environmental Conditions

2、 Ambient temperature: upper limit +45℃ , lower limit -40℃ , maximum daily temperature difference of 25K;

3、 Humidity: average daily relative humidity ≤ 95%, average monthly relative humidity ≤90%;

4、Solar radiation intensity: ≥0.1W/cm2;

5、Wind speed: 34m / s;

6、Wind pressure: 700Pa;

7、Pollution level: e level;

8、Ice thickness: ≤10mm;

9、 Tolerance to earthquake: horizontal acceleration 0.3g, vertical acceleration 0.2g

Main Features

2、The structure is simple, and the maintenance period is long;

3、Strong breaking ability and long mechanical life;

4、 Either built-in or external current transformer, high measurement accuracy;

5、 Built-in intelligent wet temperature controller to ensure safe and reliable operation of circuit breakers in high and cold regions;

6、 The overall sealing design of the housing has been improved to effectively prevent the bad weather caused by sandstorms and other bad weather.

Technical Information

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2、Please indicate the rated voltage, rated current and rated short-circuit breaking current;

3、Please indicate the operating voltage of the operating mechanism and the auxiliary (control) circuit;

4、Please indicate the number of current transformers, installation methods (built-in or external), ratio, accuracy and rated capacity;

5、Please specify other special requirements, such as the type of cold, mounting brackets and the number of auxiliary contacts;

6、Please indicate the order quantity and delivery time

Overall and installation dimensions