IF we have three 30KW motor, these motors are connected in DOL, star-delta and VFD respectively, what will be the fuse rating for the above three?

7 Answers   DOL, GSK, Ojus,

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If I have Energy Meter Ratio as 100:5 & Also I have CT Ratio as 50:5 then what will be my multiplying Factor(M.F.)

0 Answers  

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transformer core are laminated for what purpose?

9 Answers   NTPC,

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Which motor connection is preferable star-delta or delta-star?

0 Answers   IOCL,

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what is vector surge & vector shift? we have 25.3 MW(11kv) generator & 11kv/132kv transformer, connected with with 132 kv grid.vector surge relay is tripping frequentaly.what is permissible maximum limit for this.

3 Answers  

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I have 2 transformers in two different plants, both are without OLTC but i am facing problem of voltage fluctuation at LV side from only one transformer. i have to change its taps manually twice in a day. Another transformer delivering voltage is ok. Please guide me about the problem

1 Answers  

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which loses are in transformer .explane each loses

4 Answers  

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what is the function of rccb how it diffrentiate between elcb

1 Answers  

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how we masure a cuurrent?

5 Answers  

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How should i design a 1ph & 3 ph transformer. Kindly let meknow all steps and formulaes related to design from scratch.

0 Answers  

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how does the harmonics enter into the induction motors?

1 Answers  

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what is difference between vcb and mccb

4 Answers   APTransco,

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