How can you test the vector group of power transformers?
Answers were Sorted based on User's Feedback
Answer / thowsif_emerson_csm team
A Vector group is the International Electrotechnical
Commission (IEC) method of categorizing the primary and
secondary winding configurations of three-phase
transformers. Within a polyphase system power transformer
it indicates the windings configurations and the difference
in phase angle between them.[1]
The phase windings of a polyphase transformer can be
connected together internally in different configurations,
depending on what characteristics are needed from the
transformer. For example, in a three-phase power system, it
may be necessary to connect a three-wire system to a four-
wire system, or vice versa. Because of this, transformers
are manufactured with a variety of winding configurations
to meet these requirements.
For More Information Log On to:-
http://en.wikipedia.org/wiki/Vector_group
Is This Answer Correct ? | 2 Yes | 0 No |
(2u-2n)+(2n-1W) = (1U-1W)
( 2v-1W ) = (2w-1W)
( 1V-2v ) < (1V-2w)
( 1U-2v ) = (1U - 2w)
In DYn11 connect 1U & 2u .and apply the 3 phase 415 v ac to
HV side. Check for the above condition .if its ok then
group is DYN11.
Is This Answer Correct ? | 2 Yes | 1 No |
a 3 phase motor was running with delta connected, suddenly one phase winding got burnt off, what will be the effect ?
line tester lamp working in which voltage?
if we increase frequency of line, then how will string efficiency varies with it.
which transmission is cheaper ac or dc?
why capacitor burst?
What is cut-off rate?
how moving coil indicator works?
How can w select the cable size for different rating load & also waht r factors affecting the during selection of cable?
11 Answers AB Inc, Bosch, BRB Cable, Lucas TVS, Trisome Technical Services,
Define filter?
Explain the functioning of diode?
If the ceiling fan is on slow speed, does it consume less electricity?
I am having a DG set.The 415 V from Generator is step up to 460 v and then the same is used for Induction furnace. before Step up, I am connecting LT load to my factory use. When Induction furnace is in service from DG, when i try to start a motor, the generator is tripped.Please tell me the reason.