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
AC contactor is an electrical device commonly used to control circuits. Its main function is to control the switching circuit by controlling the on and off of the electromagnetic coil.When selecting an AC contactor, you usually need to consider the coil voltage. Common coil voltages are 220V and 380
The whistling sound of the transformer is mainly due to the low-frequency oscillation contained in the excitation component of the transformer, which causes the magnetic molecules in the core to move under this low-frequency magnetic field, generating mechanical vibration, thereby causing vibration
中文
English
+86-312-6775656
+86 13731210226
sales03@bdhuazheng.com
