Main causes of leakage of Capacitor. (1) Under the action of electric field, the impregnating material can separate the liberation gas to make the pressure in the shell one liter; (2) The welding between the metal shell and the sealing cover of the capacitor is not good; (3) The insulation is not we

Main failure Mechanism of causing Open Circuit Capacitor (1) The "self-healing" occurs in the lead position, which insulates the electrode from the lead wire; (2) The contact surface of the outlet line and the electrode are oxidized, resulting in low level open circuit; (3) Poor contact between the

Main failure mechanism of capacitor breakdown.1.The dielectric material has blemishes or defects, or contains conductive impurities or conductive particles; 2. Electrical aging and thermal aging of dielectric; 3. Electrochemical reaction in dielectric; 4. Silver ion migration; 5. Mechanical damage t

1.Breakdown short circuit; fatal failure. 2. Open circuit; fatal failure-change of electrical parameters (including excess capacitance, increased tangent of loss angle, decreased insulation performance or rising leakage current, etc.) partial function failure. 3. Leakage; partial functional failure.

The connection of individual compensation capacitors should be done: for induction motors started directly or through a rheostat, the capacitors that improve the power factor can be directly connected to the output terminals of the motors. Do not install switchgear or fuses between the two; For indu

Before the capacitor is installed, it is necessary to allocate the primary capacitance to balance the phase between the capacitors, and the deviation does not exceed 5% of the total capacity. When the relay protection device is installed, the balance current error should not exceed that of the relay

When a capacitor with a lower voltage grade runs in series in a higher voltage grade network, the insulators corresponding to the operating voltage grade shall be installed between the shells of each station to the ground, so that it can be reliably insulated. After the capacitor is connected by sta

When installing capacitors, it is best to connect each capacitor with a separate soft wire and not with a hard busbar, so as to prevent damage to the capacitor casing caused by assembly stress and damage of oil leakage caused by sealing. Any bad contact in the capacitor circuit may cause high freque

Main failure Mechanism causing deterioration of Electrical parameters of Capacitor. (1) Damp or surface contamination; (2) Silver ion migration; (3) Self-healing effect; (4) Electrical aging and thermal aging of dielectric; (5) Volatilization and thickening of working electrolyte; (6) Electrode corr

Main failure Mechanism of Capacitor caused by Open Circuit. (1) The "self-healing" occurs in the lead position, which insulates the electrode from the lead wire; (2) The contact surface of the outlet line and the electrode is oxidized, resulting in low level open circuit; (3) Poor contact between th