Why an ac solenoid valve attract the plunger even though we interchanges the terminal? Will the poles changes?

0 Answers  

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What is the use of iron core in a transformer?

0 Answers  

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A cylindrical wire is compressed in length by 10%. The percentage decrease in the resistance will be?????

0 Answers  

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Is the installation of the filter cloths necessary before spreading the gravels at the transformer yards?

0 Answers  

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why maintain the Dg PF is 0.8? Explain?

4 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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why star point of HT motor not earthed?

0 Answers  

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Why not LED burn after showing alarm,as Alarm volt is 11- 13,But LED is of3 volt,why it isnt Burn??

1 Answers  

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What are the site acceptance tests for power cables, DG Sets, LT panels & 30kVA UPS ?

0 Answers  

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Hi.. I am a BE GRaduate in E&E. I have 8.5 Experience in Tendering & Estimation field. I have done SAP SD course few years back. But due to some reason i failed to get job in that field and continued my own field. Now I am thinking of changing into SAP seriously. How should i go ahead???

0 Answers  

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In power transformer YnD0 Vector Group is possible or not? if possible, what will be the vector diagram and what are the conditions?

2 Answers  

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Whether the over frequency protection is turbine or alternator and why?

1 Answers   Marg,

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