The EMI filter circuit consists of an X capacitor, an inductor, and a Y capacitor. The circuit exits the inductor to two Y capacitors. They are grounded at one end and connected to the neutral and live wires at one end. They are resistant to interference from two power lines to the ground, also know

The Y capacitor in the small appliance is one of the indispensable capacitors. The Y capacitor is used for common mode filtering. It is connected between L or ground and N, and filters out the common mode signal of L to ground or N to ground. Y Capacitors are usually used symmetrically, and the fun

The leakage of the power supply can be caused by many aspects. Is there a small partner who proposes that the power leakage is due to the Y capacitor? In fact, it is not all. If there is leakage, we need to find out the actual reason to solve the problem. If the capacity of the Y capacitor is select

The y capacitor is a capacitor that is connected across the power line between the two lines and the ground (L-E, N-E), usually in pairs. Based on the limitation of leakage current, the value of y capacitor should not be too large. Generally, the X capacitor is uF grade, and the y capacitor is nF gr

As a y capacitor for a safety capacitor, it must be certified by a safety inspection agency. The appearance of y capacitors is mostly blue, and they are generally marked with safety certification marks (such as UL; VDE; ENEC; CQC; KC, etc.) and pressure-resistant AC300V or AC400V. However, its true

There is no essential difference between the function of X capacitor and Y capacitor. The difference is their connection. It can be divided into two points:1. Difference is that the X capacitor is not grounded, and the Y capacitor must have a ground wire.2. Most X capacitors are square box shaped, a

Some people think that partial discharge is the main cause of fault, and if it is solved from partial discharge, the fault can be reduced. So, how to detect the medium voltage Y capacitors in operation?

In the AC power input, it is generally necessary to add three safe capacitors to suppress the EMI conduction interference. Ac power input is divided into three terminals: fire line LPU, zero line NCU, ground line (G). The capacitance connected between the fire line and the ground line and between th

The rated voltage of capacitor means that it can work safely under this voltage for a long time, and the voltage refers working voltage, that is to say, the capacitor has a certain desire to work with the voltage it can withstand, so as to ensure the normal operation of the capacitor. The rated volt