what is the reason for drop in freq. from 50 hz at generating side to 49.8 ,49.6 etc.at receiving side???

2 Answers  

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What is effect of harmonic current (Draw by VFD) on power system/ electrical Equipments ?

0 Answers  

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Can u start a tube light without a starter?

8 Answers   Adani,

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How does a star connection and delta connection work? How does the star connection save starting current and how does it change to delta?

3 Answers  

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what is PWM in IGBT and how it works for drive.?

0 Answers   BRG,

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How to select batteries required for ups and the inverter if we Known load? And how AH is selected of battery?

0 Answers   Vodafone,

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hi can anyone pls tell me the eee interview core questions asked in l&t

0 Answers  

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how much current capacity of 300 sq. mm cable (4 core aluminium) and 150 sq. mm cable ( 4 core aluminium)

3 Answers   Bhel, RR Kabel,

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What is the difference between UPS & inverter ? which UPS is better and whos got the edge ? what is the difference between & inverter ? which UPS is better and whos got the edge 12 V , 24 V , 36 V etc what are the advantages of 12 V, 24 V , 36 V etc and what are the disadvantages of 12 V, 24 V, 36 V etc thanks

0 Answers  

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how to carry out Magnetizing Current Test on Distribution transformer and what purpose we are doing this test. why transformer rating in always in KVA ? what ispositive, negative, zero sequence impedence? How ElCB tripping if Neutral touch with ground Why AC & DC capacitor are use in UPS ? why motor rating in KW? how to syncronize two dg sets

0 Answers  

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how balanced in star delta connection ?

0 Answers  

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what is cut out fuse?

1 Answers  

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