Answer / sinnadurai

readers please provide

Answer / moulali

to find phase displacement of 3 winding transformer, first of all consider the core construction of core and prepare sample model of core and draw a circle around the core which touches the end of the core arms. now core arm devides circle into three parts and measure the angle between two arms which is phase difference.

Can any horizontally mounted motor be used as vertical?

5 Answers  

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how to select the isolation tranformer for siemens 802dsl cnotroller

0 Answers   Siemens,

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i am an maintenance engineer. one distribution board have 5 feeder. recently its ELR trips frequently, but it take some times after trip( 10min,20min..)but 3 feeder no load. two feeder only loaded. i checked one feeder IR value all values are above 50Mohm.but B phase to Earth is only 9Mohm.any problem about low value

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HAI,HOW TO SET THERMAL OVERLOAD RELAY FOR DOL STATRTER FEEDER AT START AND RUNNING?

4 Answers   L&T,

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in domestic service connection,what is service main?

1 Answers  

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It is a three inch fan and i want it to rotate to other direction .I've tried cutting the wire and reconnecting them inverse like black to white and white to black ,but it won't start rotating when i plug it in that way.And then it works again when i rejoin the wire to the way it is. I don't know what causing the problem.Is there anyone familiar with these small mortor?Any suggestion would be appreciated.Thanks!! http://i296.photobucket.com/albums/mm163/sasukebloodwheel/110527-105859.jpg

2 Answers  

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how to modify DOL control panel into Delta Y connection?

0 Answers   ABB, PDCS,

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what is the Auto Mains Failure Panel function in DG?state its function?

3 Answers  

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Brief use of isolation transformer & how it works.

1 Answers  

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Can i connect all earth pits in ring system..., And wat IS 3043 says...please help me

1 Answers  

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difference between a four point starter and three point starter

9 Answers  

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why lightning arrestor are made in two stack of insulator but why not cvt

0 Answers  

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