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uma sanker dwivedi


{ City } allahabad
< Country > india
* Profession * engineer electrical
User No # 24510
Total Questions Posted # 5
Total Answers Posted # 7

Total Answers Posted for My Questions # 13
Total Views for My Questions # 114090

Users Marked my Answers as Correct # 94
Users Marked my Answers as Wrong # 57
Questions / { uma sanker dwivedi }
Questions Answers Category Views Company eMail

what is the significance of KV & MVA rating of the transformer and how they are related.

 8 Electrical Engineering 83734

what is the permissible bend in the LT& HT CABLES.

 2 Electrical Engineering 5918

WHAT KIND OF LIGHTENING PROTECTION SCHEMS CAN BE ADOPTED FOR THE FLAT ROOF OF BIG DIMENSION.

 Electrical Engineering 2185

WHAT IS DGA TEST FOR THE TRANSFORMERS.

ABB,

3 Electrical Engineering 20079

WHAT IS THE PARTIAL DISCHARGE TEST?

ME,

Electrical Engineering 2174



Answers / { uma sanker dwivedi }

Question { 41027 }

what is the defination of electrical engineer.


Answer

ELECTRICAL ENGINEER IS A MANAGER WHO PLAN, LEAD, MANAGE AND
ORGANIZE ELECTRICITY BETTER THAN ANYBODY ELSE.

Is This Answer Correct ?    1 Yes 1 No

Question { SCS, 22557 }

How to increase the specific gravity of DG batteries?


Answer

by adding electrolyte to the battery distilled water plus
DIL. H2SO4.

Is This Answer Correct ?    6 Yes 6 No


Question { L&T, 69757 }

what is the difference between power and distribution
transformer?


Answer

POWER TRANSFORMERS ARE INTEGRAL PART OF TRANSMISSION SYSTEM
HOWEVER DISTRIBUTION TRANSFORMER ARE PART OF DISTRIBUTION
SYSTEM.

Is This Answer Correct ?    20 Yes 16 No

Question { Ashok Leyland, 107675 }

what is the difference between megger and earth tester?


Answer

megger is used to determine the value resistence of
insulation however earth tester is used to measure earth
resistence.

Is This Answer Correct ?    34 Yes 13 No

Question { Deepak Fertilisers, 36630 }

How to calculate earth flat size for 250 Kva DG and
transformer?


Answer

THE RATED CURRENT OUTPUT WILLBE 434AMP AND THE EARTH
CONTINUITY CONDUCTOR SHOULD BE HALF OF THE LARGEST CURRENT
CARRYING CONDUCTOR.
IF THERE IS CU CONDUCTOR OF SIZE 400SQ. MM IS USED THEN
EARTH CONDUCTOR SHOULD BE 200 SQ. MM OF DIMENSION 40X6 CU
STRIP CAN WORK EFFECTIVELY.

Is This Answer Correct ?    14 Yes 12 No

Question { HP, 29392 }

if AVR fails in alternator. what will be the effect.


Answer

GENERATOR WILL FAIL TO START AS THERE WILL NOT BE ANY
EXCITATION TO THE FIELD WINDINGS SO NO EMF WILL BE
GENERATED.

Is This Answer Correct ?    2 Yes 4 No

Question { Essar, 36133 }

Shall we get electrical shock if we touch the positive
terminal of a 230 volt dc supply?


Answer

NO YOU WILL NOT GET SHOCK UNTIL YOU COMPLETE THE RETURN
PATH EITER BY TOUCHING THE NEGATIVE OR TOUGINH THE BODY
WHICH IS EARTHED.

Is This Answer Correct ?    17 Yes 5 No