LW8-40.5 Outdoor High Voltage Sulfur Hexafluoride Circuit Breaker

LW8-40.5 Outdoor High Voltage Sulfur Hexafluoride Circuit Breaker

Product Introduction

LW8-40.5 outdoor AC high voltage sulfur hexafluoride circuit breaker is a three-phase AC 50Hz outdoor high voltage electrical appliance, which uses SF6 gas as the arc extinguishing and insulation medium, adopts a pressure type arc extinguishing structure, and has strong breaking capacity. It can be widely used in power systems with a rated voltage of 40.5kV as a substation, power plant for opening and closing rated current, short-circuit current, and can be used as a connecting circuit breaker and capacitor bank. Equipped with a current transformer for measurement and protection, it is an ideal replacement product for oil circuit breakers

structural characteristics

The circuit breaker is an outdoor small floor standing tank structure, equipped with CT14 spring operated mechanism; The mechanism is installed in conjunction with the main body, with simple installation, convenient debugging, reliable operation, and suitable for frequent operation; The institution has a lifespan of over 3000 times;

Adopting a compressed air arc extinguishing structure with strong breaking capacity, the accumulated breaking of 40kA reaches 12 times, setting a record in China;

The sealing performance is reliable. Imported sealing gaskets are used, and the dynamic seal adopts a "V" - shaped sealing ring with spring pressure compensation structure. The secondary wiring board of the transformer is provided by a joint venture to ensure an annual air leakage rate of less than 5%;

The internal current transformer is made of microcrystalline alloy with high magnetic permeability, with an accuracy level of up to 0.2 or 0.2 seconds. According to user needs, 12 transformers can be attached. Suitable for a 50 kilometer long unloaded line without reignition.

LW8-40.5 Outdoor High Voltage Sulfur Hexafluoride Circuit Breaker

Ordering Instructions

□ Circuit breaker model and specifications;

□ Rated electrical parameters (voltage, current, breaking current, etc.);

□ Environmental conditions for use (ambient temperature, altitude, environmental pollution level);

Operating voltage of the operating mechanism and motor voltage;

The quantity, current ratio, level combination, and secondary load of internal or external current transformers;

Name and quantity of spare parts, special tools, and equipment (to be ordered separately).