Answer / rakesh

when a synchronous condenser is used in parallel with an
induction motor ( which normally operates at a low pf at
light loads) then the power supply to which an induction
motor is deriving its power from is relieved of providing
reactive power to im , while the im still draws the same
reactive power as before , the necessary kva is now
provided by the condenser as it exports reactive power.
hence the pf of im remains the same but the pf of the
combined system of im and sc is improved .

what is a DLC?[just dont reply its a Dual loop controller!] Plz do Explain the advantage of DLC over PLC?

3 Answers   Essae,

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1. what is difference between VCB and ACB.how its works please explian.

6 Answers   ABB, Accenture, HP, Minda, Mother Dairy, Satyam Pharma,

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Can you use step up generator transformer of voltage ratio 16.5kv/420kv in place of step up generator transformer 15.75kv / 420 kv

1 Answers  

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Would you recommend to replace all oil filled cables with xlpe cable for hv transmission with the current technolgy for xlpe cable?

0 Answers  

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Draw an S.L.D of the main panel for a hospital, showing meter position. Essential loads are: 1) Equipment load 100 KW 2) Critical load 500 KW 3) Life AID Safety load 400 KW 4) NON-Essential load 200 KW 5) Other service loads 200 KW Calculate and suggest the size of the transformer, size of main cable, capacitor bank, and calculate the capacity of an emergency load having above first three mentioned loads is supplied by an emergency generator.

0 Answers   FEWA, HMK,

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1.what is the basic difference between surge arrestor and lightning arrestor and where we use it. 1.what is the difference between metal oxide without gapped lightning arrestor and with gapped lightning arrestor

2 Answers  

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compare between starting charactristics of synchronous motor with those of 3Q Squirrel cage induction motor

0 Answers  

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What types domain of laplace transforms? What behavior can laplace transform predict how the system work?

0 Answers  

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What facility we get after CT secondary earthing and how?

0 Answers   Reliance,

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why electric shock due to dc is dangerous than that of ac

8 Answers  

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Can you used moeller lzm1 mccb in a dc system with 125vdc and 20ka short circuit current , beside is it have 24 or 48 volt shunt ? Beside how long current can through from An MCB shunt contacts? (like Z7-AS 24 V)?

0 Answers  

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What Happen When output Short of transformer

2 Answers   L&T, Saber Corporation,

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