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A domestic energy meter disc moves slowly, even when main switch is off, the reason is-

A domestic energy meter disc moves slowly, even when main switch is off, the reason is- Correct Answer Creep error

Creeping in energy meter:

  • Creeping in the energy meter is the phenomenon in which the aluminum disc rotates continuously when only the voltage is supplied to the pressure coil, and no current flows through the current coil.
  • In other words, the creeping is the kind of error in which the energy meter consumes a very small amount of energy even when no load is attached to the meter.
  • The creeping error occurs because of the excessive friction.
  • The vibration, stray magnetic field, and the extra voltage across the potential coil are also responsible for the creeping.
  • The creeping is avoided by drilling the hole in the disc.

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