Answers were Sorted based on User's Feedback
Answer / mahadev kovalli
efficiency of "X"mer= out put power/in put power + I2R
and efficiency is in percentage.
The efficiency is 85% to 95% its good transformer we can
|Is This Answer Correct ?||14 Yes||1 No|
Answer / mihirlio1991
i thing ............
the efficiency of transformer is depends upon some factor
its right below:-
1) material use in coil
2) winding are properly done
use material in transformer are not good
then the efficiency are poor
its depends upon the upper factors..
|Is This Answer Correct ?||4 Yes||6 No|
Answer / guest
Just go to the transformer name plate, you will find the
|Is This Answer Correct ?||1 Yes||9 No|
132 KV TRFO BUSHING BURNT WHEN A 6.6KV HAS BEEN APPLIED TO IT .WHY .ANY REASON ?
HELLO EVERYONE, I RECENTLY HAVE FOUND ONE PROBLEM, I WAS TAKING NO LOAD TRIAL OF AN HT MOTOR 920 MOTOR , 1440 RPM , 6.6 KV, WITH AUTO TRANSFORMER. AT 450 V, LOAD WAS 40 AMP AND SPEED WAS 250 RPM. BUT AS WE INCREASE VOLTAGE FROM 450 TO 480V, LOAD BECOME 41 AND SPEED REDUCED TO SOME RPM . SO WHICH PHENOMENON ACTED HERE FOR REDUCING SPEED.?? AND IS IT HAPPENING ALWAYS OR IT IS RARE? I ALSO HAVE FACED SUCH PROBLEM WITH FEW LT MOTOR ALSO.
What is spill current in protection relays?
what are the necessary basic electrical topics to learn for mechanical engineer to deal practical problems.
hello friends.. I have a doubt regarding the operation of dc machines.. I studied in a text book that a dc machine can be used as a generator and as a motor.. is this possible? If so,please send me the info about this topic.. you can also send your info to my mail.
What is the usega of brking resistor? and how it will useful to Drive...?
hai friends i have BSNL JTO exam on next month so if any body have model question paper or give preparation tips to my mail id firstname.lastname@example.org this will helpfull for my future .plz & thank u by kumar
What is the difference between split AC and Casste AC?
Why machine give shock
In a 3 phase system a neutral exists so that any unbalanced currents can flow through it towards earth.... but a phase demands a particular current as per the load attached to it....then where does the extra current come from the goes in the neutral??....I mean in an unbalanced system a phase demands a current as per its load attached....then where does the unbalanced current come from??
what is different between auto transformer and vriac
Can earth resistance be measured without connecting the earth electrode? and should earthing connections be disconnected What is the effect of connecting two cables of different sizes in parallel with supply? Thanks in Advance. I am intrested to get in touch with some tecnocrats/engineers,my mail i.d is : email@example.com