What role does the current transformer play?

2017-08-02 11:59:01 COMMENT：0 HITS：

Transformer is a special transformer, it is widely used in power supply system, to the measuring instrument and relay voltage coil or current coil power supply.

The function of instrument transformer:

(1) a circuit of high voltage and large current into the two loop standard of low voltage and small current, the instrumentation and protection equipment standardization and miniaturization, and the structure is light, cheap, and easy to install screen.

(2) isolating high voltage circuit. The primary side and the two side of the transformer have no electrical connection, only the magnetic connection. The two equipment is isolated from the high voltage part, and the two side of the transformer is grounded, so as to ensure the safety of the equipment and the human body

It should be noted that the transformer in the two side of the line (the side of the ammeter) is absolutely not allowed to open the circuit (disconnect wiring), otherwise there may be due to the high voltage of the two side of the risk or accident.

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