Generally In transformer Tap Changer on HT side, but I have seen in 66KV side in 220/66 KV, 100 MVA, Areva make transformer. Why ?

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I am having dual speed motor of cromton greaves make of 3.7 KW -1400 rpm and 5 KW - 900 rpm. Please let me know groups and winding connction for rewinding purpose.

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how to design step down 12 V, 1mA small transformer from 220 V AC? Because according to VI relation and power transfer it results bulky...

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why in dc generator field rheostate kept in maximum position?

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Unbalance in voltages at motor terminals is caused by ____.

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AMF (auto mains failure) control for DG sets at home.

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Is a 300w induction motor used in a food processor as powerful as a 1000w DC motor.

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Difference between induction motor and synchronous motor? i Think Synchronous motors operate at synchronous speed (RPM=120f/p) while induction motors operate at less than synchronous speed (RPM=120f/p – slip). Slip is nearly zero at zero load torque and increases as load torque increases am a right pls guide & send Other Comments

5 Answers   Jindal,

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what is the purpose finding power factor?

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what is neutral grounding resistor?

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what are 3 factors when selecting a contactor for a job?

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motor is 12.5hp after starting few minets motot get hot? why?

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