Answer / kamaleswaran

its well known tat der r 2 types of syn m/c..dey r salient pole and cylindrical... v kno tat speed s indirectly proportional to no. of poles..(N=120f/P)..Hydro gtr needs low speed operation.. salient pole has many poles which reduces it speed n its used fr hydro gtr and turbo gtr needs to b operated at high speed.. so cylindrical s used..

whenever a squirrel or a crow gets tangled near the out put of the feild transformer there is a discharge of 440 volts of current through the neutral due to which my appliances blow up causing a huge bang.will the RCCB help in these conditions

1 Answers  

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Why neutral has to switch on-off with phase in TN IT TT systems i.e neutral should be taken as fourth pole

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Why cannot we insulate HT over head cable to avoid ionization of air around the HT Cable?..By this we can minimise corona loss also..

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why capacitor offer reactance to alternating current?

1 Answers   Electrical,

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what is form factor

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why 30 ma elcb is used ?why cant 100 ma?

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On what basis primary and secondary of a transformer is chosen?

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What is meaning of DRU in gen.of AVR.

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Why we use Capacitor in Single Phase Induction Motor?

12 Answers   IIT,

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what is the function of cooling tubes in transformer

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For overhead protection we use which transformer?

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In ACS 1000 drive we used 12 pulse convertor.Why dont used 6 pulse or 3 pulse convetor

1 Answers  

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