Answer Posted / debi prasad (o.i.e.t)

*Three point starter.
*Four point starter.
*Rotor resistance
starter.
*Direct online starter.
*Star-delta starter.
*Auto transformer
starter.
*Steps starter.
*Motor soft starter.

What is acsr cable and where we use it?

1203

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what is (+) and (-) in generator field detector stand for?

1893

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Why back emf used for a dc motor? Highlight its significance.

1246

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How to protect sensitive loads such as Dosing pumps inside a factory from voltage surge/voltage fluctuation.

1854

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Draw the line diagram of diffretial relay connected to transformer?

2495

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please give some hindalco placement papers for written exam

1858

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What are the factors which influence the choice of specific magnetic and electric loadings of a synchronous machine?

2142

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What is zero of the system?

1154

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In our factory so many iron pillors are exists for supporting the shed/Hangar. If do more no of earthings at one piller instead of doing more earth pits in many locations and running earth strip around the hanger, I can save the money. Please suggest this method is acceptable as per Is specifications though the Earth resitance of the farthest piller is with in the limits as per IS specifications.

2177

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is the value of inductance depends upon the value of thitha in doubly excited machine??

2093

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any one can explain the stages of a knee point which is taken during ct magnetising curve.

1821

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If anyone would like to know or practice for FEWA papers contact me on mohamedrashad2@hotmail.com Just completed the supervisor exam in April 2021

1230

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what is the difference between earth leakage and earth fault?

2392

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what do you mean by every IC 74 first digit.why are you using this no.why not using another no.

1950

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The ripple frequency in output of fullwave bridge rectifier is a. Half the input b. Twice the input c. Same as input

2312

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