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2021-01-05
How to tell if the transformer is faulty
- Categories:Industry news
- Author:
- Origin:
- Time of issue:2021-12-31
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(Summary description)During the use of the inverter and the governor, they are often hit by inrush current and surge voltage, which will seriously damage the performance and service life of the inverter and the governor. Therefore, an input reactor should be installed in front of them. , to protect the inverter and regulator, prolong its service life and prevent harmonic interference.
How to tell if the transformer is faulty
How to tell if the transformer is faulty
How to tell if the transformer is faulty
(Summary description)During the use of the inverter and the governor, they are often hit by inrush current and surge voltage, which will seriously damage the performance and service life of the inverter and the governor. Therefore, an input reactor should be installed in front of them. , to protect the inverter and regulator, prolong its service life and prevent harmonic interference.
- Categories:Industry news
- Author:
- Origin:
- Time of issue:2021-12-31
- Views:0
Information
During the use of the inverter and the governor, they are often hit by inrush current and surge voltage, which will seriously damage the performance and service life of the inverter and the governor. Therefore, an input reactor should be installed in front of them. , to protect the inverter and regulator, prolong its service life and prevent harmonic interference.
In addition, since the frequency converter and the speed governor are speed-regulated by frequency conversion, high-order harmonics and waveform distortion are often generated during speed regulation, which will affect the normal use of the equipment. Install an output reactor to filter out harmonic voltage and current to improve the quality of the power grid.
What is a reactor?
1. The DC reactor (also known as the smoothing reactor) is mainly used for the DC side of the converter, and the DC current with the AC component flows through the reactor. The main purpose is to limit the AC component superimposed on the DC current to a certain value, keep the rectified current continuous, reduce the current ripple value, and improve the input power factor.
2. The incoming line reactor is used to limit the sudden change of the grid voltage and the current impact caused by the operating overvoltage, to smooth the spikes contained in the power supply voltage, or to smooth the voltage defects generated when the bridge rectifier circuit is commutated. It can also reduce the pollution of the power grid caused by the harmonic current generated by the rectifier unit.
3. Reactors are suitable for reactive power compensation and harmonic control systems, which can improve power factor and filter harmonics to suppress grid voltage waveform distortion, thereby changing grid quality and ensuring safe operation of the power system.
4. The main function of the output reactor is to compensate the influence of long-line distributed capacitance, and can suppress the output harmonic current, improve the output high-frequency impedance, and effectively suppress dv/dt. Reduce high-frequency leakage current, protect the inverter and reduce equipment noise.
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