Does frequency change with increasing voltage i.e 220v to 11kv? explain if not?

6 Answers  

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In DC generator, we use commutator, having no. of segments. Then how it is possible to get a half wave of voltage and current for half rotation of armature?

0 Answers  

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we have two generators different capacity on 15 MW and other 6MW at 11 KV , 15 MW gen. bus short level current 40KA,and 6MW short level current 25KA,, length of cable 100MTR between 6 MW from 15MW gen. for bus coupling . kindly tell any one can we use both NGR OR one NGR from any GEN. BOTH NGR has diff. rating. Tariq pakistan

0 Answers   RYK Mills,

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what is impedence of transformer? its formula

1 Answers  

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Capacitor is load free component but why ampere meter shows current when capacitor bank breaker close?

0 Answers  

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what mean by power factor

2 Answers  

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What is function of inverter? and who it's operate & what are controlling devices are used?

2 Answers   Carrier, Dalkia,

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Discribe type of fault in DOL and stardelta startor.

0 Answers  

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Why armature rheostat is kept in maximum position?

0 Answers  

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What is the function of RCCB? What are the different sensitivity ratings & each application?

6 Answers   Wipro,

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Describe the test procedure to determine the vector group

0 Answers   MPSEB,

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what is the function of Droop CT and where it is used?

3 Answers   Lanco,

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