Electrical Machines
Induction Machines
Stability of Induction Motor
Questions mapped to Stability of Induction Motor under Induction Machines.
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IncorrectThe torque-speed characteristics of motor and load for two cases are shown in the figures ((a) and ((b). The load torque is equal to motor torque at points P, Q, R and S
The stable operating points are
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Sign in to UnlockThe electromagnetic torque of a drive, and its connected load torque are as shown below. Out of the operating points A, B, C and D, the stable ones are
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Sign in to UnlockIf an induction machine is run at above synchronous speed, it acts as
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Sign in to UnlockAn induction motor is fed from a balanced three phase supply at rated voltage and frequency through a bank of three single phase transformers connected in delta-delta. One unit of the bank develops fault and is removed. Then,
Single phasing will occur and the machine fails to start
Single phasing will not occur but the motor terminal voltages will become unbalanced and the machine can be loaded to the extent of 57.7% of its rating.
The machine can be loaded to the extent of 57.7% of its rating with balanced supply at its terminals.
The machine can be loaded to the extent of with balanced supply at its terminals.
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