advantages of vvvf drives over non vvvf drives for EOT cranes

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Hello seniors m an engineering student in 3rd yr..i want to know what are the software course in electrical field?i wanted to do certification course but i dont know much about the course?..Regards

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while calculating demand in my company the present load in kw is 212.... there 125kvar capacitor bank is installed by spliting as 50 in departments...the diasplay in panek biard shows 175kw... how could we know the amount of kvar used to compensate the kva

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Enlist four components of electrive drives.

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12.5 tons a/c is their how much kva generator can recommend to the customer.

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why do star-delta connection ? why do not connect any circuit direct connection ?

1 Answers   IBM, Sri Biotech,

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In a poly phase circuit if clamp on meter shows same load on three phases and their sum on neutral then why we use three and a half core cable or maximum the same size of core as that of phase?

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what may the reason for vector shift in a generator?

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is starting current of induction is high or stating current of ransformor is hign ,for the same rating

12 Answers   BARC,

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what is negative phase sequence

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to vary valtage from 0 - max a variac is necessary . so how to design for high power applications nearly about 200KW power

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Why DC Currents are not used in transformer?

4 Answers  

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