Answer / loganathan

IN DC MOTOR WHILE WE Giving THE DC supply THE COMMUTATOR
CHANGE into ac current.

Answer / ranjit mallick

The above answer is correct but i just want to add that in
general commutator works in converting AC to DC and vice
versa as in case of DC generator.

Answer / gopal manda

i m agree both answer.but commutator is also used for
input&output in dc machine to the help of carbon brush

i ha done my 10th with 71% ,ITI with 81% 11th with 75% 12th 43% apprentiship with 71% in SAT i secure 1390 ,TOEFL 27 i was refused four times and in all me interview visa officar told that i am not Qualify for study in USA but i completed my 12th yes i got low persentage in my 12th but i seen to much student they already got visa with them 3 or 4 backlocs so why they are refused me ?

0 Answers  

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How to connect a Restricted earth fault relay for 2000KVA,11/0.433 KV Distribution Transformer and What is the neutral CT ratio should be selelcted for 2000 MVA Transformer for estabilishing the Restricted earth fault relay

1 Answers  

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do anyone out there know where to find a compleete list on acronyms/abbreviations used in offshore electric engineering. MCB - Micro Circuit Breaker, MCCB-Mouldes Case Circuit Breaker, ELCB-Earth Lekage Circuit Breaker, ELMCB- etc.....

0 Answers   Aibel,

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what is the purpose of vector group in a transformer ? if 2 tranaformers r connected in parallel the vector group is same or not? for parallel operation 2 transformers of different manufacturers maintain same vector group or not?

3 Answers   Orchid,

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why fan consume constant power even when we increase or decrease its circuit resistance through speed regulator???

2 Answers  

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How to check op amp using multimeter

1 Answers  

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explain why tap changer is always connected to high voltage winding side of the transformer.

10 Answers   IOCL, UPPCL,

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Why do we give DC excitation to AC Synchronous motor??

9 Answers   Lance, MBM, Polycab,

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how to check avr of dg set of 125kva

0 Answers  

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what is the speed of electricity?

11 Answers   Bhel,

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How delta connection in the primary of distribution transformer reduces harmonics?how delta connections reduces harmonics?Please answer me...Hope that question is correct.

0 Answers  

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What is dry and wet flashover.

1 Answers  

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