Among the commonly used electronic components, capacitors are the most complex types of components and specifications, especially in order to meet the requirements of different circuits and working environments. Even capacitors with the same capacitance value and rated voltage have many different ty

1.Leakage oilDue to improper handling methods, the porcelain casing is lifted, causing cracks in the welded portion of the flange, or the force of tightening the nut during wiring is too large, causing damage to the welded joint of the porcelain sleeve and some defects in the manufacturing process o

1. The capacitor bank should adopt appropriate protection measures, such as balanced or differential relay protection or transient overcurrent relay protection. For capacitors of 3.15kV and above, separate fuses must be installed on each capacitor. The rated current of the device should be selected

Capacitors are one of the most widely used electronic components in electronic devices, used in coupling, bypass, filtering, and tuning loops. The failure analysis of capacitors should follow the relevant principles. Some commonly used principles are as follows: 1. The principle of primary and secon

In electronic circuits, high voltage capacitors are used to block DC, as well as to store and discharge charge to act as a filter to smooth out the output ripple signal. Small-capacity capacitors are commonly used in high-frequency circuits such as radios, transmitters, and oscillators. Large-capaci

1. When testing a small power supply capacitor under 50pf, because the fixed capacitor under 50pf can hold a small amount, use a multimeter to detect, only to detect the presence or absence of leakage, internal burnout or breakdown. When testing, you can select the multi-meter R × 15k block, use two

1. Environment and temperature limits for high voltage capacitor installationThe ambient temperature of the capacitor should not exceed 40 °C, the relative humidity of the surrounding air should not exceed 80%, and the altitude should not exceed 1000 m; there should be no corrosive gas or vapor arou

1. It is forbidden to forcibly send power after the circuit is disconnected. It is necessary to detect the status of the protection measures. According to the status of the measures, the identification is determined. The switching voltage capacitor, the power series cable, the detection capacitor ha

1. The replacement rule of capacitor(1) When the capacity and withstand voltage are the same and the volume is not limited, the ceramic capacitor and the paper capacitor can be replaced with each other;(2) When the price is the same and the volume is not limited, the mica capacitors with the same wi

Capacitor capacitance(1) "Capacitor", which is an abbreviation of a capacitor, is a "charged container" and is a device that holds a charge. Any two conductors (including wires) that are insulated from each other and are closely spaced together form a capacitor. It is widely used in blocking, coupli