Capacitor housing is sealed. Generally internal media is not leakage. However, it is sometimes found that after the capacitor has been running for a period of time, a small amount of oil stains appear around the outlet terminal on the cover of the capacitor, which is due to the fact that the rem

With the increase of operation time, the capacitance of low-voltage capacitor will decrease, and the average attenuation rate of capacitance in five years is less than 1 %/ year. Since the capacitance is directly proportional to the working current of the capacitor, during daily inspection, attentio

When the fast fuse core of the capacitor is fused, the core shall not be replaced until the cause is determined and the capacitor shall be forced to be put again. The power supply should be cut off and discharged first, and then external checks should be carried out: whether there are flashover mark

There are anti-riot isolating devices inside the capacitors. When the shell expands sharply due to the fault of the capacitor, the isolating device acts, thus cutting off the external power supply of the capacitor to avoid explosion. In extreme bad conditions, if the riot isolation device does not a

Capacitor explosionCauses of capacitor explosion:(1) Positive and negative electrode coupling; (2) The quality of capacitance is not up to standard; (3) Poor sealing and oil leakage; (4) Internal dissociation and bloating; (5) Damage of shell insulation; (6) The charge closing causes the capacitor t

Failure safety. Failure may lead to a short circuit when the capacitor is damaged. In order to avoid causing electrical shock, smoke, fire and other dangerous conditions during short circuit, use fuse and other components in the circuit to set up automatic fault prevention function. If the above war

Test conditions for voltage resistance. (1) Test equipment. The AC voltage-resistant test equipment should have the capability to produce a sinusoidal wave similar to 50 / 60 Hz. If a deformed sine wave is applied or an overload voltage exceeds a specified voltage value, failure may occur. (2)Voltag

Working temperature and spontaneous heat (applicable to the B / E / F property). The surface temperature of the capacitor should be kept below the upper limit of its rated operating temperature range. It is important to take into account the inherent heat of the capacitor. The capacitor is at high f

Working voltage:When using a DC rated voltage capacitor in an AC circuit or a ripple current circuit, be sure to maintain the Vp-p value of the applied voltage or the Vo-p value containing the DC bias voltage within the rated voltage range. If a voltage is applied to the circuit, a temporary abnorma

When the capacitor bank adopts fuse protection (the drop fuse must be used, the capacitor itself is affected by a barrier or overvoltage of the system, etc., all of these will make the capacitor bank fuse. Once the capacitor fuse a wire, it will cause the three-phase current indication to be out of