5 Disadvantages of DC Tachometers

5 undesirable properties associated with DC tachometers:

  1. Noise generated voltages are present
  2. Commutation sparking phenomenon exists in DC tachometers
  3. Wear and tear of brushes necessitates regular maintenance
  4. More torque is required
  5. Small ripple is present

Also see: Top 5 advantages of DC Tachometers

See below: Working of DC tachometer generator

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