Answer / satya

it acts just like a inductor

why do we require two lines one phase and a neutral for an ac transmission..is neutral potential zero..?if yes y carry a neutral line from generating station itself...why dont we take it from ground

1 Answers  

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Why is the neutral point of a star connected winding of a motor not grounded?

1 Answers  

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what do you mean by type zero control sytem ?Give an practical example of type zero contol sytem?

0 Answers   Bhel,

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WE are using a 63A MCCB(SIEMENS MAKE) for one of the feeder in LV substation panel.It is supplying to a lighting & power socket DB.Settings in the MCCB is Ir = 63 * 1 , Isd = 8 times of Ir , tsd = 0.5 sec( I2 t off). Sometimes this MCCB is tripping .But no trip in DB MCB. Can anybody tell me reason ? From where i can know about the MCCB settings?

5 Answers  

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My question is abt backlog.I had dropped one subject in my second year, and completed this subject in the 3rd attempt, so how many backlogs i have got?1 or 3?plz sujjest the answer as soon as possible

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Any formula to calculate neutral current in 3 phase 4 wire system

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What difference between MCB,MCCB,RCCB,ELCB please explain briefly with its rating.

3 Answers  

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1. what is the power factor of a purely inductive load? (i) Zero (ii) Lagging (iii)Leading (iv) Unity 2. which type of transformer connection is preferred in case of power supply transformer? (i) Star/Star (ii) Delta/Delta (iii) Star/Delta (iv) Zig Zag/Star

2 Answers  

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what is ring main unit?

1 Answers   Otis,

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What is the purpose of Rotor earth fault relay and How to test the Rotor earth fault relay in generators and What is the procedure?.

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IN A MAGNETIC MATERIAL HYSTERYSIS LOSS CAN'T BE REDUCED TO ZERO. HY?

3 Answers  

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In UPS, battery connections if parallel connection given, what will happen?

2 Answers  

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