Analyze the effect of frequency converter harmonics on the power supply line
Inverter is a non-linear load, it absorbs non-sinusoidal current from the grid, causing grid voltage distortion, it is a harmonic source, but also a harmonic receiver. As a source of harmonics, it has varying degrees of influence on various electrical equipment, robots, computers, gauges, and communication systems. For the power supply line, because of the harmonic effect, the deterioration of the grid quality indicators, reducing the reliability of the grid, increasing grid losses and shorten the life of electrical equipment. Its main hazards are: (1) Increasing the possibility of resonance in the grid, resulting in a high risk of accidents due to high over-current or over-voltage. (2) increase the additional loss, transmission and electrical equipment efficiency and equipment utilization. (3) The electrical equipment (rotating electrical machines, capacitors, transformers, etc.) to run abnormal, accelerated insulation aging, thereby shortening their service life. (4) Improper operation or operation of measuring and measuring instruments, meters, robots, computer systems, and many electrical consumers. (5) Interfere with the communication system, reduce the signal transmission quality, destroy the normal signal transmission, and even damage the communication equipment. (6) In some cases, it not only produces harmonics, but also causes fluctuation and flicker of the supply voltage and even unbalanced three-phase voltage, which may endanger the safe and economic operation of the power grid and affect the normal power consumption and surrounding users of electrical equipment . To reduce the extent of the impact of harmonics, can take various measures, but for the inverter, the main reactor is installed in the loop reactor. Custom Reflective Keychain,Custom Pvc Reflective Keychain,Custom Reflective Keychain For Child,Relective Animal Keychain Ningbo Deying Reflective Products Co.,Ltd , https://www.deyingsafe.com