Power Grid Harmonic Pollution and Reactive Power Compensation

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Power grid harmonic pollutionWhen a sine wave voltage is applied to a nonlinear load, the current becomes a non-sinusoidal wave, and the non-sinusoidal current causes a voltage drop on the grid impedance.The voltage waveform will also become a non-sinusoidal wave. Perform Fourier series decompositio

Generator Excitation Method and Working Principle

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Generator excitationThe generator excitation system is the collective name for the power supply and its ancillary equipment that supplies the excitation current of the synchronous generator. It generally consists of two main parts: excitation power unit and excitation regulator.Generator excitation

The Function of Relay Protection and Troubleshooting Methods

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I. IntroductionWith the rapid development of power systems and the advancement of computer technology and communication technology, relay protection is further developing rapidly in the direction of computerization, networking, integration of protection, measurement, control, data communication and

Reasons and Solutions for Noise Generated by Switching Power Supplies

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Reasons why switching power supplies produce noise:1. Internal reasons(1) Noise generated during use of switching power supply. During the use of the switching power supply, factors such as current and resistance will instantly change, causing changes in the internal conditions of the switching powe

Substation Capacitor Fault Detection and Analysis

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1. Substation capacitor charged detection method1. Withstand voltage testWithstand voltage testing is one of the main methods to test the ability of electrical appliances, electrical equipment, electrical devices, electrical circuits and electrical safety equipment to withstand overvoltage. It is ma