SF6 circuit breakers, through their unique technical features and structural design, significantly enhance grid stability, specifically in the following ways:
1.Sealing and low leakage rate: The fully enclosed GIS (gas-insulated switchgear) design achieves an annual leakage rate of less than 0.5%, preventing insulation failure caused by pressure drops. Intelligent density relays monitor gas conditions in real time and automatically lock the operating circuit when pressure is low, preventing faulty operation.
Intelligent Upgrade and Maintenance Optimization
1) Condition Monitoring and Predictive Maintenance: Integrated sensors monitor mechanical properties, gas purity, and other parameters in real time, and combined with big data analysis, predict faults (such as contact wear and excessive moisture content), improving operation and maintenance response speed by 60%.
2) Phase Selection and Closing Technology: The new intelligent controller precisely operates at the voltage/current zero-crossing point, suppressing inrush current (for example, reducing the magnetizing inrush current when closing an unloaded transformer by 80%) and switching overvoltage, protecting sensitive equipment.
2. Overvoltage Suppression to Protect Grid Equipment
1) Eliminating Cutoff Overvoltage: SF6 circuit breakers do not cut off when interrupting low currents, preventing insulation-threatening overvoltages. This makes them particularly suitable for interrupting capacitive loads (such as capacitor banks and unloaded long lines).
LTZ-40.5 indoor High Voltage SF6 circuit breaker is an indoor device used in AC 50Hz three-phase power system. It can be used in industrial and mining enterprises, power plants and substations for the control and protection of electrical equipment, and can be used in places where frequent operation is required, and can be used as a liaison circuit breaker and suitable for capacitor bank circuit breaker, and is a more ideal oil-free circuit breaker in the power system.
LTZ-40.5 indoor High Voltage SF6 circuit breaker has many features:
Strong breaking capacity: SF6 circuit breaker completes arc blowing by blowing out SF6 gas, its arc blowing speed is fast, arc burning time is short, and the breaking current is large, which can effectively protect the safety of medium and high voltage circuits. SF6 circuit breaker after disconnecting capacitive or inductive current, there is no danger of re-ignition and re-ignition.
Long electrical life: SF6 circuit breaker has a long service life, long overhaul cycle, and can adapt to frequent operation within a short period of time, with good safety and durability.
3.High insulation level: SF6 circuit breaker is using sulphur hexafluoride gas as insulation medium, the insulation level of this gas is extremely high.
4.Modular operation mechanism: SF6 circuit breaker adopts the modular spring operation mechanism which is independently developed by our company and adapted to the market popularity, which has good mechanical performance and convenient and quick maintenance in the later stage.
Shaanxi West Power Tongzhong Electrical Co., Ltd.
Contact: Ms.Grace Liu (Director of Sales Department)
Tel: +86 917 3661109 Fax: +86 917 6739416
Mobile: +86 18091765882(WhatsApp/Wechat/skype )
Website:https://www.xdtzelectrical.com
