Answer / sunil dutt

dc has uniform continous magnetic field while the ac has alternating magnetic field .so we use dc .as u know most of electrical hiost crane dc supply is used for above said reason
sunil dutt.09416468290

Answer / mamun

the dc source can be found easily and also the dc voltage is
not fluctuate from battery, so the machine can start normally.

Why the earth cable have current 1A - 2A , it is safety for Electrical system or earth cable should be zero amps ? how to troubleshoot?

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how to calculate full load current of transformer & induction moter ?

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Why induction motors draws higher current during starting condition?

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what is the formula for calculating motor rating? Example: If we want to rotate a 1000 kg waight disc up to 100 RPM, which size motor will require?

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which supply is used in traction system

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after syncnhronistion how generator speed controlled by grid

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i need project topics along with circuit diagram in the electrical and electronics engg and also some websites regarding projets.

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why is the size of earth conductor is half of phase conductor.

1 Answers   Century Pulp and Paper, L&T,

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why we pefer the salient pole for synchronous motor ?

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750kva 11/415kv transformer having percentage impedence is5.64%. 11KV HV whose current 39.37A and 415V LV whose current 1043.43A.resistance is 2.5ohm. find no load loss and full load loss?

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in an industrical wiring, why we are using lighting DB and Power DB separately?

3 Answers  

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What is the effect of pi controller on the system performance?

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