Lw9-72.5 Porcelain Column High Voltage Ac Sulfur Hexafluoride Circuit Breaker

Brand: lixiong

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Installation

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The circuit breaker uses sulfur hexafluoride gas as the arc extinguishing medium. Sulfur hexafluoride gas not only has excellent arc extinguishing performance, but also has good electrical insulation performance. When breaking, the gas is compressed by the gas cylinder and sprayed to the arc to extinguish the arc. The simple principle of breaking is shown in the figure.

The circuit breaker has many advantages such as simple structure, good breaking performance, and balanced operation. It is also an ideal switch for capacitor banks and reactor banks.

Excellent breaking performance The circuit breaker can smoothly break various abnormal short circuits, such as the simultaneous grounding of both poles on both sides of the circuit breaker in the reverse phase state, near-zone faults and other faults including circuit breaker end faults.

Low operating noise Since the circuit breaker is sealed and isolated from the atmosphere, there is no noise of gas ejection during operation.

Simple structure and compact size The arc extinguishing chamber adopts a single break and has no other valve system, so the structure is very simple and the size is compact.

Small maintenance workload Due to the simple structure and the small amount of burnout of the arc extinguishing chamber contacts when breaking in sulfur hexafluoride gas, the maintenance workload of the circuit breaker is small and the maintenance cycle is relatively long.

Safe and reliable Pure sulfur hexafluoride gas is non-toxic and non-flammable, and because the arc extinguishing chamber is well sealed, the circuit breaker is safe and reliable in use.

Ambient temperature: upper limit +40 degrees, lower limit -40 degrees

Altitude not exceeding 1000m

Wind pressure not exceeding 700Pa (wind speed not exceeding 35m/s)

Earthquake intensity not exceeding 8 degrees

Places without fire, explosion danger, serious dirt, chemical corrosion and severe vibration.

Three-level common box type, simple structure, compact layout; power output is rotary type, with good sealing effect. The small moving mass in the body reduces the operating work and improves the mechanical life. The application of rotating arc technology improves the arc extinguishing efficiency and electrical life. The independence of the body structure can derive products with different performance and installation methods. Compared with vacuum and oil circuit breakers, it has significant advantages in structure, weight, safety, electrical strength, electrical life, maintenance and cost. Special arrangements and configurations of protection and measurement transformers with different ratios can be made according to user needs.