Interested to Buy Any Domain ? << Click Here >> for more details...
How to take the Vector Group Test in Transformer? What is
the purpose of doing Vector Group Test?
- 3 Answers
- 7812 Views
- I also Faced
- E-Mail Answers
Answer Posted / arun
we can check the transformer vector group and polarity of
tansformer.ex.Dyn11 in name plate .11 "o" position we are
check th tansfomer
| Is This Answer Correct ? | 0 Yes | 3 No |
Post New Answer View All Answers
how does ELR works? explain
Dear all, I just want to ask an expert on this forum for some insights. For the magnetic balance test, when applied voltage on a Delta-Star transformer e.g. Dyn11, the following relationships apply for HV side: 1. H1-H2 = H2-H3 H3-H1 2. H2-H3 = H3-H1 H1-H2 3. H3-H1 = H1-H2 H2-H3 For the LV side also: 4. X1-X0 = X2-X0 X3-X0 5. X2-X0 = X3-X0 X1-X0 6. X3-X0 = X1-X0 X2-X0 Is there a similar pattern for Y-d, Y-Y, D-d? And how about Y-z, D-z, Z-y transformers? I've tested a YNzn5 transformer and for LV side I don't see the pattern. In this particular case I got for LV side the following (see values below): H1-H0 H2-H0 H3-H0 X0-X1 X0-X2 X0-X3 128.0 119.9 7.2 29.2 13.3 15.8 70.7 128.4 59.2 23.4 22.0 3.6 7.2 120.1 128.1 13.4 29.3 15.8 What is the relationship here for LV? For row 1 I see the relationship, for row 3 I also see but it's shifted, but for row 2 I don't see such relationship. Any suggestions, answers, someone?
What is the numerical quantity of sqcm?
What is the difference between rated and per unit in transformer?
why ct's&pt'S out put called as burden,why compelsary short ckt the secondary of ct's while removing the burden?
why we use the 100% and 95% stator earth fault protection for the synchronus generator ?
Why increase in current leads to increase in conductor temperature?
What kind of maintenance is conducted for Transformer
what are the applications of transistors with low dc gain, high dc gain and medium dc gain( beta)?
How can we increase fuel-power ratio of any DG set?
what is d check in dg 1500kva
A 10 MVA, 66KV, 50Hz, Y-connected 3-phase alternator has synchronous reactance of 0.635 Ù. It is working at full load at 0.8 lagging p.f. condition. Find torque angle, neglect armature resistance.
draw 3 phase rectifier diagram
How can maintain our H.T. motors used in cement plant. please send me procedure.
How to perform a DC resistance test In Alternator and their proceduces?
