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  2. Current clamp - Wikipedia

    en.wikipedia.org/wiki/Current_clamp

    An electrical meter with integral AC current clamp is known as a clamp meter, clamp-on ammeter, tong tester, or colloquially as an amp clamp. A clamp meter measures the vector sum of the currents flowing in all the conductors passing through the probe, which depends on the phase relationship of the currents. Only one conductor is normally ...

  3. List of electrical and electronic measuring equipment

    en.wikipedia.org/wiki/List_of_electrical_and...

    Current clamp: Measures current without physical connection Curve tracer: Applies swept signals to a device and allows display of the response Cos Phi Meter: Measures the power factor Distortionmeter: Measures the distortion added to a circuit Electricity meter: Measures the amount of energy dissipated ESR meter

  4. Ammeter - Wikipedia

    en.wikipedia.org/wiki/Ammeter

    In the case of alternating current, the use of a current transformer also isolates the meter from the high voltage of the primary circuit. A shunt provides no such isolation for a direct-current ammeter, but where high voltages are used it may be possible to place the ammeter in the "return" side of the circuit which may be at low potential ...

  5. Talk:Clamp meter - Wikipedia

    en.wikipedia.org/wiki/Talk:Clamp_meter

    1 Minimum current. 2 comments. 2 Bare wires. 2 comments. 3 Grammar & sentence structure. 1 comment. 4 regarding amps. 2 comments. 5 Clamps and probes. ... Talk: Clamp ...

  6. Current sensing - Wikipedia

    en.wikipedia.org/wiki/Current_sensing

    The measurement of the electric current can be classified depending upon the underlying fundamental physical principles such as, Faraday's Law of Induction; Magnetic field sensors; Faraday effect; Transformer or current clamp meter, (suitable for AC current only). Fluxgate sensor, (suitable for AC or DC current).

  7. Current transformer - Wikipedia

    en.wikipedia.org/wiki/Current_transformer

    Many digital clamp meters utilize a current transformer for measuring alternating current (AC). Current transformers are used extensively for measuring current and monitoring the operation of the power grid. Along with voltage leads, revenue-grade CTs drive the electrical utility's watt-hour meter on many larger commercial and industrial supplies.

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