Classify driling machines.

0 Answers   Essar,

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why we have to do tan delta test of the transformer oil???

5 Answers  

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Which fault is caused by lightening and thuderstorm a. Line to line fault b. Single line to ground fault c. Double line to ground fault

1 Answers  

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what is the similarity and difference between ups and inverter?

4 Answers   GMR,

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Can any body describe me why a soft starter is used for 6.6kv induction motor instead of VFD ?

1 Answers   Cairn,

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how to test an MCB

2 Answers  

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Which type of motor is used in trains, what is the rating of supply used explain working principal?

0 Answers  

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what are the safety of chiller.

7 Answers  

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what is a bus post insulator? explain its application in a substation.

1 Answers   Enercon, HAL,

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In aerodynamic turbines which element is NOT there a.stator b.compressor c. Fuel intake system d.fans

0 Answers  

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sometime battery charged and then automatically charged when rectifier ON conition, is there any chances please clarify the same.

0 Answers  

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when the PFR (POWER FACTOR REGULATOR)change a step to zero,one of the RCCB will triped off,is it the changing step of this PFR effect the RCCB?

2 Answers  

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