what is the advantages of having in-built acvvvf (without seperate inverter in the control panel)in the drive system of elevators?

0 Answers  

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Why restricted earth fault protection is needed? Why can’t differential Protection is sufficient?

1 Answers  

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What is the need of black rock stones under the transformer yard?

5 Answers   TNEB Tamil Nadu Electricity Board,

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Could anyone clarify my wondering. What is the difference between knee point voltage and saturation voltage of the CT. Is their any formula to calculate these values?

2 Answers  

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what is the practical application of full adder circuit?

0 Answers   College School Exams Tests,

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How 48-relay (incomplete sequence) functions?

0 Answers  

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How Much Capacity of Diesel Genset is suitable for 20 no.s of 1.5ton AC's & Why?(Load Calculation)

11 Answers   Lapis Technologies,

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what is the Transmission line differential protection and why differential protection also have backup Line Distance Protection ?

1 Answers  

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condition Autotrip facia come on control panel of electrical transmission line?

0 Answers   Getco,

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toughest decision you ever had to make

1 Answers   Infosys,

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Anybody know how schematic diagram for reverse power relay? RPR for generator protection

0 Answers  

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We have 2 Nos. Transformer with the capacity of 2000KVA and 1250 KVA and currently using only one 2000KVA T/R during operational hours while non- operational hous 1250 KVA T/R also used to reduce T & D losses. Similarly, 2 capacitor bank of 500KVAR and 300 KVAR also installed to balance reactive power. Now problem is around 1000 KW load PF is not maintaning 0.99 as 350 KVAR capacitor is in healty condtion. Now the PF is maintain 0.95 to 0.96.

2 Answers  

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