The secondary winding of the magnetic loop inductance and the voltage transformer should be grounded in use to avoid the high voltage passing through the transformer into the low voltage after the transformer insulation is broken down, which will hurt the instrument and the operating personnel. Ground the secondary point of the transformer , Which does not affect the normal operation of the equipment, but also ensures the safety of personnel and equipment.

In order to ensure safety, the secondary side of the magnetic loop inductor must be grounded, and it is used for maintenance when there is a high voltage risk on the secondary side of the current transformer to ensure the safety of people and equipment.

Magnetic ring inductance

During the consumption process, stop monitoring the operation of each primary equipment in the system to ensure the safe operation of the power system. The current transformer usually converts the large current of the primary circuit into a secondary small current proportional to it, and finally outputs the small secondary current to the secondary instrument, relay maintenance, and automatic installation for use. Therefore, the current transformer is an AC current source for electrical control, conditioning, measurement and maintenance components, and it is also the hub of the electrical secondary circuit and the primary circuit.

Why can't the secondary side of the magnetic ring inductor be open? Since the secondary circuit of the current transformer is open, the secondary current disappears, and the demagnetization effect also disappears, which will cause high magnetic density in the iron core. And because the number of turns of the secondary winding is much greater than the number of turns of the primary winding, once the secondary side is open, it will present a high voltage, sometimes as high as several thousand volts, which not only endangers the secondary equipment, but also seriously human life. Safe.