hey guys i recently saw a long transmission line in which a sort of balloons in red and white color were hanging at each section.do u have any idea why are they kept for?

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What happens on the secondary of a 33kV/11kV when one phase of the primary fuse blows?

3 Answers  

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Can we calculate the P.F if we know the only load on alternator .

1 Answers   Medha, Medha Servo,

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what is skin effect? why is it absentin dc system

22 Answers  

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1)which height building required lightning arrester? 2)how to calculate the requirement of lightning arrester? 3)what is the pro instrument? 5)how to test protective relay like overload?earth fault relay?

1 Answers  

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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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What is difference between A.C & D.C Resistance ?

4 Answers  

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why the colour of insultor stack , petticoat is brown. Is it has some technical reason.

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how to measure earth resistance of a substation

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hi, i finished b.tech eee in 2008, im worked in dg sets mfg company , now i left job in 6months back, now again i want get job core side, how can i get? is there any couses we have learn to get better oppurtunity? /

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in our sub station why we step down firstly 33kv\11kv then 11kv to 430v. can we direct step down 33v to 430.v.

7 Answers  

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700KW 6.6KV slip ring induction motor to use VFD to control the speed

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