Do you know what are the advantages of using SF6 circuit breakers?
The main advantages of using SF6 circuit breakers can be summarized into the following five points, based on its high arc extinguishing performance, insulation characteristics, structural advantages and long life characteristics:
1. Good arc extinguishing and insulation performance
When electrons and SF6 molecules come into contact, they are almost 100% mixed to form heavy negative ions. This performance has great use value for the deionization and arc extinguishing of the residual arc column. That is, SF6 has good negative charge, and its molecules can quickly capture free electrons to form negative ions. The conductivity of these negative ions is very slow, which accelerates the recovery rate of the dielectric strength of the arc gap, so it has good arc extinguishing performance. Under a pressure of 1.01×105Pa, the arc extinguishing performance of SF6 is 100 times that of air, and it does not deteriorate after arc extinguishing and can be reused. It has strong breaking capacity, the break voltage is suitable for higher breaking, allows more continuous breaking times, is suitable for frequent operation, has low noise, no fire hazard, and low electromechanical wear. It is an excellent "maintenance-free" circuit breaker. It is increasingly widely used in high-voltage circuits.
2. High breaking capacity and long life
Since SF6 gas can be restored after decomposition, the decomposition products under the action of the arc do not contain carbon and other substances that affect the insulation capacity, and the substances generated under strict control of moisture are not corrosive. Therefore, the insulation strength of the gas does not decrease after the circuit is broken, and the maintenance cycle is long.
3. Compact design and low maintenance cost
The structure is compact, the volume is small, the footprint is low, and the anti-pollution ability is strong. Due to the reduction in the number of fractures and the number of parts, the equipment utilization rate is further optimized.
4. Safety, reliability and environmental protection
SF6 does not damage the ozone layer, but leakage must be strictly controlled to reduce the impact of the greenhouse effect.
5. Wide range of applications
It is mainly used in high-voltage and ultra-high-voltage systems, especially suitable for closed combination electrical appliances, and is the core equipment for controlling and protecting circuits in power systems.
LW9-72.5 Outdoor High Voltage Porcelain SF6 Circuit Breaker by Shaanxi West Power Tongzhong Electrical Co., Ltd. is an outdoor, three-phase AC 50Hz high voltage electrical equipment. It is primarily used to protect transmission and distribution lines and can also be used as a tie breaker. This circuit breaker features a three-phase mounted on one frame, with no provision for single-phase operation.
LW9-72.5 Outdoor High Voltage Porcelain SF6 Circuit Breaker has many advantages:
1.Superior Breaking Capability:
When interrupting magnetizing current, the overvoltage is less than twice the operating voltage. Additionally, when interrupting charging current, there is no re-striking or re-ignition occurs.
2.Reliable Insulation:
The properties of SF6 gas remain stable over time, protecting the insulating and conductive components from oxidation and ensuring stable temperature operation.
3.Minimal Maintenance:
The circuit breaker features a modular structure with advanced technology, reduced components, and excellent mechanical performance, and requires almost no maintenance.
If you need more details ,please feel free to contact us as per following information:
Email: xdtz04@westpowerelectric.com
Website: https://www.xdtzelectrical.com/
Tel:+86 917 3661109
Mobilephone(whatsapp ): +86 18091765882
