Answer / ragu

WATER AND AIR CONDUCTS HEAT BY PROCESS CALLED CONDUCTION
THAT IS HEATING THE NEARER MOLECULES AND SO ON. BUT VACCUM
CONDUCT BY PROCESS CALLED RADIATION THAT IS FORM OF WAVES
EG. HEAT FROM SUN TO EARTH IN VACCUM SPACE

why is corona loss greater in a stranded conductor as compared to a solid conductor ?

2 Answers  

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what is the diference between base speed and rated speed in motor

1 Answers   Bhel,

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Why positive terminal of DC 48V was earthed?

1 Answers  

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IS there any mechanical connection between the field winding and armature winding of a dc generator?

11 Answers   IOCL,

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Why we use circular(Stepped) cross section in transformer core?

0 Answers  

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I know the Capacitor value- 12.5KVAR, voltage 440V gas filled, then what is the formula for calculate the microfarad value for this 12.5KVAR capacitor

2 Answers  

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what is the diference between the 4pole & 6pole DC Motors & what is advantage 6pole over the 4pole ?

0 Answers  

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We have laid the single core Armoured cable 7 nos ( 2 each phase & 1 neutral ) to cater our electrical load . the issue is though we have Glanded the cable both the end also givan the earthing to the panel both the end we are facing a heavy sparking at the gland side. what could be the reason.

12 Answers  

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operation principle of a generator? Gss, Diesel and HFO which is better and why?

1 Answers  

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According to general circuit diagram of 1-Phase t/f , why the primary is not get short circuited ,even though the supply terminals both are directly connected through primary winding?

4 Answers  

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To test Transformer we give HT side 440V to see wheather that it is producing 17.6V on LT to verify Voltage ratio is correct or not but when we give the 440V voltage to LT side then what will happen to HT voltage ?

3 Answers   Aditya Birla,

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we done magnetic balance test for 33KV /440V transformer in our company , but the ratio out is confusing us Voltage applied in RY = 440 , at RB = 320 and YB = 60 RY 440 = ( RB + YB ) 380 only Please let me know what type of problem is it.

2 Answers  

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