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What is the starting method of DG?
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Describe the factors affecting energy performance assessment of a DG set.

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A motor has to exert power starting from zero and rising uniformly to 150 HP in 8 mins after which it works at constant power of 100 HP for 5 mins. The motor remains on no load for next 5 mins. The cycle again starts and repeats indefinitely. Determine suitable size of motor.

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What are the different methods for the starting of a synchronous motor ?

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List different starting methods of three phase synchronous motor. Explain any one of them.

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Describe any two methods of starting synchronous motors.

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Name any two methods of starting synchronous motors.

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What value of resistance/ph have so that the starting torque is half the max torque.

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A 3 φ I.M. has synchronous speed of 250rpm and 4% slip at full load. The rotor has a resistance of 0.02Ω/ph and stand still reactance of 0.15Ω/ph. Calculate i) The speed at which max torque is developed. ii) The ratio of maximum to F. L. torque. iii) The ratio of maximum to starting torque.

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Calculate speed of motor when delivery maximum voltage. Also calculate the resistance to be added to achieve 3/4th of maximum torque at time of starting.

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How can the starting current of an induction motor be reduced?
Answer : The starting current of an induction motor can be quite high, often several times the full-load current, which can cause issues like voltage drops in the supply line and damage to the motor windings ... -duty vs. light-duty), motor type, cost, and the need for controlling the acceleration profile....

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Why induction motor draws heavy current at starting?

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Mention the methods for starting an induction motor?

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In the motors starting purpose why the armature rheostats at maximum position while the field rheostat is kept in minimum position?

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Explain the reason for a single phase induction motor being not self-starting.

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How does a star-delta starter work in starting an induction motor?

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Which of the following is the best method to reduce eddy current?
Answer : The best method to reduce eddy currents is to **use laminated cores** in electrical devices such as transformers and electric motors. Here's why: - **Laminating the core** involves making the ... in the core). But laminating cores is the most common and practical method used in many applications....

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What are the classification of transmission line according to method of construction?

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