how can we test the polarity of a 3-phase transformer?
Answers were Sorted based on User's Feedback
Answer / mark from the philippines
we can use a Transfromer Turn Ratiometer(TTR) instrument to
identify the polarity of the three phase transformer. say
for wye-delta configuration at H-X format of transformer
leads, we can read the following:
H1H0/X1X2; H2H3/X2X3; and, H3H1/X3X1.
Note that Ho stands for neutral since connection is in
Y-config.
The slash (/) indicates the test lead connections, two per
sides. Good polarity indicates a positive sign value(+),
otherwise, negative(-) which means there exists a wrong
connection.
Is This Answer Correct ? | 3 Yes | 9 No |
What is differance between Slip ring motor and Squirrel cage Motor ?
What is RSS Meter
0 Answers Krishna Constructions,
single sphase energy meter measur
what is the difference between elcb and rccb ?
what type of cables exsisting in the world and how many types
I have finish diploma electronics and five years experience in electrical field in ht service how can i get c licensce or other electrical certificate
what the is the distance between 110kv termination point and the ground. how to calculate
in 33/11kv stepdown transfomer, transformer will stepdown to 11kv & remaining 22kv where it will go..
what about GD square and its important for motor design?
What is the deference between earth fault & earth leakage
you have a 2 tonne ac that operates for 2 hrs daily what will be you monthly bill (this is complete question asked nothing else was given)?
why delta delta connection generally not use in transformer