How each of the following losses occur in d.c machines (i) copper (2)core (3) windage (4)friction please help me

0 Answers  

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how the frequency was generated in power station

2 Answers  

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derive DC RMS value for half wave rectifier?

0 Answers   BARC,

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what is the diffrence between voltage and current?

11 Answers  

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why motors are rated in HP?

3 Answers   HCL, ncpl,

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What types of testing in 11Kv Ht switchgeat during testing?

3 Answers   TCE,

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why in dc generator field rheostate kept in maximum position?

1 Answers  

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what is the purpose of using semiconductors in HT cables

3 Answers   Sterling,

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what is tower earthing and what for it is required

1 Answers  

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6. A DC AMMETER HAS R=0.1 OHM & CURRENT RANGE IS 0-100 A IF THE RANGE IS TO BE EXTENDED TO 0-500 A THEN METER REQUIRES SHUNT RESISTANCE OF ..........

2 Answers   SSC,

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How can we measure the residual voltage in dc machines?

0 Answers   GPREC,

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WHAT IS counter flux IN CT?

0 Answers  

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