Type:Polypropylene Film Capacitor Rated Voltage:200VAC~600VAC Operating Temperature:-40~85 Application:General Purpose Material:RoHs Capacitance:1~60uF
Coupling capacitors are important equipment in the high-frequency channel of power systems. They are capacitors used to transmit signals in the power network. They are mainly used in power-frequency high-voltage and ultra-high-voltage AC transmission lines to achieve carrier wave, communication, measurement, control, and protection And extract electricity. It enables the two systems of strong current and weak current to be coupled and isolated through capacitors, provides a high-frequency signal path, prevents power frequency currents from entering the weak current system, and ensures personal safety.
1. Box type provides the identical outer appearance.
2. Withstanding overvoltage stressing.
3. Excellent active and passive flame resistant abilities.
4. Withstanding 2.5KV impulse voltage, Class X2.
The function of the coupling capacitor is to couple and isolate the strong and weak current systems through the capacitor, provide a high-frequency signal path, prevent the power frequency current from entering the weak current system, and ensure personal safety. In addition to the above functions, the coupling capacitor with a voltage extraction device can also extract the power frequency voltage for protection and reclosing, and functions as a voltage transformer.
The core of the coupling capacitor is installed in an insulating porcelain sleeve, which is filled with insulating oil. Both ends of the porcelain sleeve are equipped with metal flanges for combined connection and fixing. When the voltage is 110kV and above, the coupling capacitor is a combination of several capacitors connected in series. The coupling capacitor is equipped with a grounding switch, which is used as the security ground for the secondary parts such as high-frequency protection, automation systems and telecontrol signals, scheduling carrier communications, and voltage extraction devices.
1. As an across-the-line type noise suppression capacitor.
2. Grid power supply of electronic instruments and electronic equipment, switch, contacts produces a spark discharge sites.
3. Electric tools, lighting, hair dryers, water heaters and other household electrical appliances