Interested to Buy Any Domain ? << Click Here >> for more details...
Dear All, I am new in construction company , my boss ask a question at time of interview , If we have 60MW generation and Single Power Transformer step-up we have. if CMR 50/60MVA , ONAN, ONAF respectively , is it sufficient or not ? for that much power to transfer,
1647Dear all, I'm manikandan I have done by DIPLOMA EEE from 2011 , I have 5 years of experience from Power plant instrumentation field , which one field is give long life & which one field is best ,I confused a lot and also I'm studying AMIE, can I choose which department from Section B examination? pls tell me
1662We have a distribution transformer of 750KVA/11kv/440v and an AVR (Servo Stabilizer) of 750KVA on the LT side of distribution transformer. Also we have an ACB of 1200A on the output of distribution transformer (that is on the input of AVR). We want to have an MCCB on the output of AVR. What should be the rating?
SSPL,
2103can we replace Dyn11 transformer to Yy0 transformer and what is the difference between the two type
1 2816Post New Electrical Engineering Questions
how to calculate insulation level of transformer?
what is the transiant condition in alternator? and how it can be prevanted?
1. what is usage for power factor in industries?? 2.why we need to monitor power factor??
ult of expression 'document.FrmQF.myem
brief notes on ammeters
I am B.E.electrical engineer having 7 years of experience in Transformer testing upto 315 MVA.I want to khow how I can get the 'Electrical Valuer' License.
Can any answer me ,What will be the range of C.T coil for L&T energy meter EM301 used for 180 kva DG set
Why frequency changes due to load variation in power system ? i.e why when load increases frequency decreases?
Zone of protection and tripping scheme of arc protection relay.
what is the reqirred voltage in HT motor to get full RPM on no load test?
difference between power surge and switching transient
what is the best transformer oil breakdown voltage?
3phase motor can be used as a Prime mover for alternator.
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?
if the motor rated speed is 950rpm. how to change the above rated speed? is it possible?
