Electrical pliers are tools that measure electrical quantities: current, voltage, power, phase angle, etc. There is no need to break the current circuit or disrupt its operation.
Depending on the measured value, there are tick-borne:
- ammeters;
- ampervoltmeters;
- wattmeters;
- ohmmeters;
- phase meters.
The operation of the simplest clamps is based on the physical processes occurring in a single-turn current transformer, in which the primary winding is a bus with a measured current, and the secondary (with an ammeter) is connected to a detachable magnetic circuit.
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