EXAMIANS
In which of the following DC Motor the ratio of starting torque to full load torque is minimum?
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Diverters are used only in
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Which of the following statements is/are correct ?
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A 3 - Φ, 400 / 200 V, Y - Y connected wound rotor induction motor has 0.06 Ω rotor resistance and 0.3 Ω standstill reactance per phase. To make the starting torque equal to maximum torque of the motor the additional resistance required
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An induction motor has a rotor resistance of 0.002 Ω / phase. If the resistance is increased to 0.004 Ω / phase then the maximum torque will
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Regenerative braking is possible in
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If starting current of a 3 - Φ induction motor is 5 times the rated current, while rated slip is 4 %, then ratio of starting torque to full load torque is
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In DC machine shape of main field flux distribution is?
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Normally for the design of transformer the ambient temperature is taken as
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The shaft of induction motor may be unbalanced due to
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