High Standard Plastic Silver Copper
Type:High Voltage Rated frequency:50Hz/60Hz Mechanical Life:10000 Times Color:Demand
High-voltage circuit breaker (also called high-voltage switch) It can not only cut off or close the no-load current and load current in the high-voltage circuit, but also cut off the overload current and short-circuit current through the role of the relay protection device when the system fails. The complete arc extinguishing structure and sufficient current interrupting capacity can be divided into: oil circuit breakers (more oil circuit breakers, less oil circuit breakers), sulfur hexafluoride circuit breakers (SF6 circuit breakers), compressed air circuit breakers and so on.
1. using vacuum arcing chamber, with spring operating mechanism, realizes the devoid of oil;
2. open circuit performance is good, long life, is 20 times;
3. can open circuit current is 630 a single capacitor group without renewed;
4. mechanical life is long, reliable action, frequent operation, low noise;
5. has lost the breaking capacity, can be used for contact circuit breaker;
6. products, beautiful shape, anti-corrosion ability is strong, simple structure, no maintenance cycle is long and easy in maintenance.
1. Control effect. According to the needs of power system operation, put some or all electrical equipment and some or all lines into or out of operation.
2. Protection. When a part of the power system fails, it cooperates with protection devices and automatic devices to quickly remove the faulty part from the system, reduce the scope of power outages, prevent accidents from expanding, protect various electrical equipment in the system from damage, and ensure the system Fault-free operation safely.
The main structure of the high-voltage circuit breaker is roughly divided into: a current-conducting part, an arc-extinguishing part, an insulating part, and an operating mechanism part. The main types of high-voltage switches are divided into arc-extinguishing media: oil circuit breakers, air circuit breakers, vacuum circuit breakers, sulfur hexafluoride circuit breakers, solid gas circuit breakers, and magnetic blow circuit breakers.
According to the nature of operation can be divided into: electric mechanism, pneumatic mechanism, hydraulic mechanism, spring energy storage mechanism, manual mechanism. 1. Oil circuit breaker. Transformer oil is used as the arc extinguishing medium, and it is divided into two types: more oil and less oil.
2. Sulfur hexafluoride circuit breaker. Use inert gas sulfur hexafluoride to extinguish the arc, and use its high insulation performance to enhance the insulation between the contacts.
3. Vacuum circuit breaker. The contacts are sealed in a high-vacuum arc extinguishing chamber, and the high-insulation performance of the vacuum is used to extinguish the arc.
4. Air circuit breaker. Use high-speed flowing compressed air to extinguish the arc.
5. Solid gas circuit breaker. The arc is extinguished by the gas decomposed by the solid gas-producing substance under the high temperature of the arc.
6. Magnetic blow circuit breaker. When the circuit is cut off, the arc is rapidly stretched by the electromagnetic force generated by the large current flowing in itself, and then sucked into the magnetic arc extinguishing chamber to cool down.