Current transformer circuit

Current transformers are widely used in high-voltage electrical equipment or low-voltage electrical equipment.
The current transformer is called a current transformer. The function of the transformer is:
    I) Convert the high voltage and high current of the primary circuit into the standard low voltage (loo.0 and small current (SA or 1A) of the secondary circuit
, so that the measurement Instruments and protection devices are standardized and miniaturized
, making them lightweight, cheap and easy to install inside the screen.
  2) Isolate the secondary equipment from the high-voltage part, and ground the secondary sides of the transformer
to ensure that the equipment and Personal safety. Current transformer circuit principle.
  The following matters should be paid attention to when installing and using current transformers:
  1) It can only be put into operation after passing the withstand voltage test.
  2) The secondary coil circuits of high-voltage current transformers and low-voltage current transformers must not be open circuited, and one end must be reliably grounded. Otherwise, the magnetic flux in the core of the current transformer
will increase sharply and generate a high induced electromotive force on the secondary coil.