The load isolation switch is an important part of power equipment and has an important function to ensure the safe operation of power equipment. The load isolation switch ensures the safe operation of the equipment in dealing with circuit faults and power outages by isolating the power-fed equipment
Relay is an electrical device whose main function is to control small current to large current, thereby realizing the identification and conversion of signals in the circuit. It uses the principle of electromagnetic induction and uses the interaction between the current of the winding and the magnet
In low-voltage power grids, circuit breakers are widely used for overload and short-circuit protection. However, if the circuit breaker is improperly selected, it may cause malfunction or refuse to operate, losing its protective function and reducing the reliability of the power supply. The general
When the transformer suffers a sudden short circuit, both the high and low voltage sides will be subject to a large short circuit current. In a short period of time before the circuit breaker has time to open, the short circuit current generates an electric force proportional to the square of the cu
Three-phase imbalance is an important indicator of power quality. Although there are many factors that affect the power system, normal imbalance is mostly due to asymmetry of three-phase components, line parameters or loads. Since the three-phase load factor is not certain, the three-phase voltage a
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