Interested to Buy Any Domain ? << Click Here >> for more details...
IF we have three 30KW motor, these motors are connected in
DOL, star-delta and VFD respectively, what will be the fuse
rating for the above three?
- 7 Answers
- 10441 Views
- DOL, GSK, Ojus, I also Faced
- E-Mail Answers
Post New Answer View All Answers
what could be the RMS value and average value of a 4 phase sine wave?
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?
How to know th details about an electrical Drawing ? Please mention the easy method.
What happens if the negative to earth voltage is greater than positive to earth voltage in the battery of substation?
Discribe type of fault in DOL and stardelta startor.
please tell me how a surge protector work on a DC 48Volt.? please describe briefly.
Why should we hire you over the others waiting to be interview?
what is excitation/
how we sesign the transformer give some specifion regarding design of transformers
i am electrical and elctronics engg passed out in 2009 want to attend for reliance placements.plz send me apttitude ,technical and hr question answers to my mail plz. my mail id-kat.bindas@gmail.com
In siemens PLC, why do we want to move the data ?
how current is reverse from its normal direction during the fault?
What is Fire Panel ? How it works ?
HOW TO CALCULATE THE HEAT AND LOAD OF LT-SUBSTATION WHICH CONTAINS 2*1MVA TRANSFORMERS,LT SWITCH BOARD,MLDB,ACB,BUSBAR,ETC...?
what are the different methods for the starting of a synchronous motor.
