"Low voltage" operation has big harm
In the operation of the power system, when electricity consumption or have other reasons too, can cause the network voltage is too low, use electric equipment in low voltage operation. This power equipment, to power lines are very bad, and even cause serious harm.
The main harm: one is the burning motor. Low voltage more than 10%, will make motor current increases, the coil temperature serious when even the burning of the motor. Two is to reduce power system stability. Due to the lower voltage, reduced lines conveying limit capacity, and reduce the stability. Voltage too low voltage collapse accident may occur. Three is increasing line loss. In transmission must power, voltage reduction, current increases accordingly, cause line loss increases. Four is reduced output generator. If the voltage by more than 5%, the output will also reduced generator, and also reduce equipment ability.
English
简体中文