Wiring principle of Electrical Current Transformer
Jul 10, 2021| 1. Open circuit is not allowed; secondary open circuit can easily lead to safety accidents, this is because secondary open circuit will cause iron core to overheat and induce high voltage.
2. The maintenance level and the measurement level cannot be connected incorrectly; once the two are connected incorrectly, it may lead to insensitive response of the relay maintenance and inaccurate power measurement.
3. Unnecessary windings need to be short-circuited; so as not to affect the measurement accuracy, but the Electrical Current Transformer has multiple taps, and unnecessary taps cannot be short-circuited.
4. There must be a point of grounding; the Electrical Current Transformer measures high voltage once it is measured. If there is a point of grounding, high voltage can be introduced into the ground, but pay attention to two points of grounding to avoid shunting.