Answer / raghavendra

basically power is required for each and every appliance we use like motors ,fans,ac,tv's,fridges etc.for each and every load there should be different type of supply . the three phase supply increases the efficiency of single phase supply by 50 percentage .but further increase in phase like six phase increases the efficiency by only 7 percent only and also leading to more complications on the generator side , and further increase in phases also leads to same case increasing the complexity on generator . so 3 phase supply includes 3 phase double circuit supply ,3 phased 3 circuit supply and so on........................

Answer / nilamani umashankar jena

IN THREE PHASE POWER THE VOLTAGE REMAINS CONSTANT SO THE
EFFICIENCY IS MORE

Answer / nilamani umashankar jena

IN 3 PHASE POWER SYSTEEM THE VOLTAGE REMAINS CONSTANT AND
WE GET QUALITY POWER

A 200W,230V lamp is connected across 115V supply.The lamp will draw power?

6 Answers   SJVN, TCS,

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hello friends.. I have a doubt regarding the operation of dc machines.. I studied in a text book that a dc machine can be used as a generator and as a motor.. is this possible? If so,please send me the info about this topic.. you can also send your info to my mail.

0 Answers   Bhel, CVL,

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What is meant by IP55 motor.Where it is used?

2 Answers   Zuari,

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What is AVR? Explain the function AVR?

11 Answers   HSL, NHPC,

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for a 132/33kv transformer secondary is star and is connected to NER. and from secondary a cable is running to 33kv swbd. since the cable is single core do i have to run neutral cable also to 33kv swbd.???

5 Answers   PowerTech,

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Is potential difference materials property ..? if yes tnen how.. explain brifly.

0 Answers  

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what is the vvvf in the dumbwaiter?? or lift. what is the actual process?/

0 Answers  

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which type of amplifiers are used in multimete?

0 Answers   NTPC,

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how to CHECK CT AND PT AT THE FAULT OCCUR IN GENERATOR RELAY PANEL .

0 Answers   Birla,

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What are the various kind of cables used for transmission?

0 Answers  

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A 7 storey building has a floor area of 35,000sq.ft on each storey. On the ground floor 11KV electrical sub-station is to be erected. A load of 3kw for every 400sq.ft (p.f is 0.8) is proposed for each floor. fire pump 7.5hp, water pump 5hp, lift 2 nos, each 10hp and 20shop load of each shop is 5kw. calculate a. load each floor b. total load of building c. L.T feeders for aech floor and from transformer to main. d. distribution diagram e. capacity of sub-station/capacitor bank f. line diagram

0 Answers  

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for what purpose the star point is done in ct

0 Answers  

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