Interested to Buy Any Domain ? << Click Here >> for more details...
why generation is done in delta nad transmission in star?
brief
- 3 Answers
- 9586 Views
- I also Faced
- E-Mail Answers
Answer Posted / gunasekaran
basically generator are star connected with neutral earthing
but GT are delta connected because one voltage level one earthing should be permissible it should be at source end if it is more than one earthing third harmonics getting closed path it will destroyed the normal wave form.for transmission transformer is source end so it is earthed.
| Is This Answer Correct ? | 1 Yes | 4 No |
Post New Answer View All Answers
what is control supply rating of a machine
1.What will be stored in online ups EPROM IC?
List the disadvantages of constant k filters?
sir plz send some previous year questions of jspl.
When calculating the speed of a rotor required for a particular frequency of synchronous generator we use the equation 60f/p Is this p is the number of pole pairs of rotor & do we consider the number of pole pairs in the stator is 1?
how could we calculate the no of outgoings from a 800 watt distribution board
How delta connection in the primary of distribution transformer reduces harmonics?how delta connections reduces harmonics?Please answer me...Hope that question is correct.
what's the difference between abs/inc encoders. apart from the position remembrance what are all the other differences. and what's mean by grey code.
In PFI plant one stage capacitor connection is directly connected(with out megnetic contact controll). but why?
HOE WE CAN IMPROOVE BY USE OF CAPACITOR
A cable with concentric PE conductor must be used with frequency converter circuits what does its means.?
234 MVA Generator 3 phase Short circuit current Values required? Gen set Rating-234 MVA, Gen Voltage-18kv, PF;0.8, Xdv:23.5 %, Transformer Rating-18/380KV, 680MVA,Yndd1 two winding, Step up TR, ZT:35.50 %,X/R 4.33 Gen CB Position, CB open ,Disconnected open, Generator Running Voltage 18 Kv, Bi mistakes generator side earth switch Closed during that time short circuit current level in 3 Phase required, and how to test on site 234MVA Generator Short circuit current,
Dg pf .71 i am improve pf 0.80 what capacitor connected in dg how?
We have 90mX100m hangar with 16 no.of supporting pillar. It is required to provide power supply on all pillars. what is suggested earthing scheme for hangars.
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?
