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Integrating meters are used for the measurement of:
1. Current
2. Phase
3. Energy
4. Voltage

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Correct Answer - Option 3 : Energy

Integrating instruments:

  • These instruments record the consumption of the total quantity of electricity, energy etc., during a particular period of time.
  • These instruments totalize events over a specified period of time.
  • No indication of the rate or variation or the amount at a particular instant are available from them.
  • Some widely used integrating instruments are: Energy meter, Ampere-hour meter, kilowatthour (kWh) meter, kilovolt-ampere-hour (kVARh) meter.

Indicating instrument:

  • Indicating instruments indicate, generally the quantity to be measured by means of a pointer which moves on a scale.
  • Examples are ammeter, voltmeter, wattmeter etc.


Recording instruments

  • Recording instruments record continuously the variation of any electrical quantity with respect to time.
  • In principle, these are indicating instruments but so arranged that a permanent continuous record of the indication is made on a chart or dial.
  • The recording is generally made by a pen on a graph paper which is rotated on a dice or drum at a uniform speed.
  • The amount of the quantity at any time (instant) may be read from the traced chart. Any variation in the quantity with time is recorded by these instruments. Any electrical quantity like current, voltage, power, etc., may be arranged to be recorded by a suitable recording mechanism.

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