Capacitors are usually silent when they are running, but sometimes exceptions. The causes of the sound are as follows: (1) Casing discharge. The sleeve of the capacitor is an assembler. If the open space is too long, the rain enters between the two layers of casing, and after the voltage is added, i

4. Working current and harmonic problemWhen capacitors work on power grids containing magnetic saturation regulators, large rectifiers and electric arc furnaces, high-order harmonics will appear in alternating current. For n harmonics, the capacitor reactance will be fundamental when 1/n, therefore,

2. Working temperatureWhen the capacitor is working, the temperature of its inner medium should be below 65 C, and the maximum temperature should not exceed 70 C, otherwise it will cause thermal breakdown or bulging. The temperature of the capacitor housing is between the medium temperature and the

Power capacitors are mainly used for reactive power compensation or phase-shifting in the power system, and are installed at various levels of substation.The normal operation of these capacitors plays an important role in ensuring the quality and efficiency of power supply and consumption. Following