Related Standards for Harmonic ControlFrequency converter harmonic control should pay attention to the following several standards, anti-jamming standards: en 50082-1, -2n 61800-3: radiation standard: en 5008l-1, -2. EN61800-3. Especially IECl0003, IEC l800-3(EN61800-3), IEC555(EN60555) and IEEE519-

What are harmonics? The fundamental cause of harmonic generation is caused by the nonlinear load. When the current flows through the load, there is no linear relationship between the current and the applied voltage, so that the non-sinusoidal current is formed and the harmonics are generated. The ha

To sum up, we can clearly understand the causes of harmonic, in the specific treatment passive filter, active filter can be used to reduce loop impedance.Cutting off the transmission path of harmonics and developing and using the green inverter without harmonic pollution, the harmonic produced by th

The operating voltage of shunt capacitor must be strictly controlled within the allowable range. That is, the long-term operating voltage of shunt capacitor must not be greater than its rated voltage value of 10, the operating voltage is too high, will greatly shorten the service life of the capacit

In the normal environment, it is generally required that the hottest temperature of the shunt capacitor shell should not be greater than 60 ℃, otherwise, the cause must be found out and treated.

Shunt capacitors should be checked regularly, at least once every quarter, mainly to check whether there is dirt such as dust accumulation in the shell of capacitor, porcelain casing, installation support and so on, and to carry out a serious cleaning. Inspection should pay special attention to the

Load capacitance refers to the sum of all effective capacitors connected by two lead of crystal oscillator inside and outside IC blocks, which can be regarded as series capacitors of crystal wafers in the circuit. The oscillation frequency of the oscillator is different depending on the load frequen

In general, increasing the load capacitance will decrease the oscillation frequency, while decreasing the load capacitance will increase the oscillation frequency.

Load capacitance refers to the external total effective capacitance across the two ends of the crystal in the circuit. It is a test condition as well as a usage condition. In application, the accurate frequency can be obtained by adjusting the load capacitance value. The size of the capacitor mainly

Matching capacitances-- load capacitors are the capacitors required by the crystal oscillator to oscillate normally. General external capacitance is designed to make the equivalent capacitance at both ends of the crystal equal to or close to the load capacitance. The earth-to-ground capacitance of i