what is the VVVFD and?

4 Answers  

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what are the safety of chiller.

7 Answers  

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how to find 5 kilo meter long under ground 33 kv cable fault location if IR VALUE shows 0.05 M ohm @5000 volt.and cable fault locator shows some time fault distance 3 kilo meter ,3.7 kilo meter and some time 1 kilo meter? now how to find the fault location that where is leakage. note--it is tested with 5000 kv megger and insulation resistance is 0.05 M ohm. and some time 0.03 M ohm comes.

0 Answers   OPS,

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in 220/132 substation in place of PT what equipment used & what r the role of that equipment

2 Answers  

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What is application/Function of Electro chlorinator in Offshore Oil & gas Platform ?

1 Answers  

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Why we use d.c. meger in a.c. induction motor?

1 Answers  

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How CT & PT ratings are decided for a 11KV or 33KV transmission line?

3 Answers  

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what is phase angle ? and also tells me why my phase-phase voltages are 390 rather then my single phase voltages are 221 and 223 respectivly?

2 Answers  

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What is the transformenr turns ratio.

5 Answers  

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Can anyone explain about Control and power circuits of star delta starter & DOL starter ? How it works? please!

1 Answers  

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Which system is best for industries 3ph 3w or 3ph 4w?

3 Answers  

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what is the soft starter principle? how is connection diagram? what is the procedure for checking the connection?

0 Answers   Siemens,

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