1. What is a microcomputer protection device?Answer: A microcomputer protection device is an automatic device that can reflect the faults or abnormal working status of various electrical equipment in the power system, and act on circuit breakers to trip or send signals.What are the basic tasks of mi

Switchgear has overload and short circuit. Short-circuit current is an overcurrent caused by a short circuit due to a fault or wrong connection in the circuit. Overload current is an overcurrent caused by operating conditions in an undamaged circuit.Every electrical device used in the power grid or

(1) The matching relationship between the performance of lubricating grease and the operating conditions of the motor. In the technical conditions of the motor, the standard operating environment of the motor will be specified, such as ambient temperature, altitude, etc. When selecting lubricating g

I.Characteristics of transformer excitation inrush current(1) The waveform presents a pointed shape, indicating the presence of significant non periodic components and second and third harmonic components. Over time, the second harmonic content of a certain phase may exceed half of the fundamental c