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In an energy meter, the steady speed of disc can be achieved when

  • In an energy meter, the steady speed of disc can be achieved when the operating torque is equal to the braking torque.
  • In an energy meter, the disc rotates due to the flow of electrical energy through the meter.
  • The speed of the disc is directly proportional to the amount of energy that is being consumed.
  • In order to measure the amount of energy accurately, the disc needs to rotate at a steady speed.
  • This is achieved when the operating torque on the disc (due to the electromagnetic forces produced by the electrical current flowing through the meter) is equal to the braking torque on the disc (due to the drag caused by the meter's bearings and other components).
  • When the operating torque and the braking torque are equal, the disc rotates at a constant speed, allowing the meter to accurately measure the amount of energy being consumed.
  • Any imbalance between the operating torque and the braking torque will cause the disc to speed up or slow down, which can result in inaccurate measurements.
  • Therefore, it is important to ensure that the operating torque and the braking torque are properly balanced in an energy meter.