in Contactor opearation Why there is a difference in the values of the operate and release voltage in case AC supply

0 Answers  

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what is meant by unity power factor?unity means one why dont call 2,3,4......?

6 Answers  

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Can any body tell me what is use of END OF LINE RESISTOR in fire alaram circuit?

2 Answers  

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3- What is the target from Zero Impedance, Single Phase Imp., S/C Imp. and magnetic balance tests?

0 Answers  

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How to convert farad to kvar. both are the unit of capacitor.

5 Answers   College School Exams Tests, UltraTech, Vikram Ispat Industries,

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WHAT IS ND RELAY AND HOW DOES IT WORK?

2 Answers  

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What is Autodialer used in FAS????

2 Answers   Emerson,

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what will happen if a 3 phase motor is connected to a single phase circuit and vice versa?

3 Answers  

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What is meant by impedance? difference between high & low impedance ?

0 Answers  

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some meggers have three terminals. wat is the real function of the earth terminal?

2 Answers  

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where we use stardelta starter and dol starter

4 Answers   HCL,

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why the field winding in dc motor is not short circuited eventhough dc supply is applied across the winding

0 Answers   Torrent Pharma,

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