* Question
| Problems that should be paid attention to during the operation of current transformer |
* Answer
| (1) The current transformer shall not open the circuit on the secondary side during operation. Once the secondary side is open, the iron loss is too large, the temperature is too high to burn, or the secondary winding voltage is increased to break the insulation, and a high voltage electric shock occurs.danger.If sparks are found when the short wires are removed, the current transformers are open, and should be short-circuited immediately to find out that there is no open circuit in the meter circuit before re-disconnecting the short wires.
(3) One end of the secondary side of the current transformer, the outer casing must be reliably grounded. (4) When the insulation resistance of the secondary side coil of the current transformer is lower than 10~20 megohms, it must be dried to restore the insulation before use. |
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