1. Overview recent years, the power grid in the gradual increase of nonlinear loads is a common trend around the world, such as variable frequency drive or SCR DC drives, computers, important uninterruptible power supply used in the load (UPS), energy-saving fluorescent light system, which will lead to power pollution nonlinear loads, power quality decline, causing trouble for the electrical equipment, and ULN2803A datasheet and even lead to serious fire accidents. Some of the world, including the building of the fire proved to burst with the power pollution. power pollution and ULN2803A price and power quality deterioration primarily in the following areas: voltage fluctuations, surges, shock, harmonics, phase unbalance, etc. 2. power pollution hazards power pollution would cause serious harm to electrical equipment, are: interfe...
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