How are calculated the aluminium busbar cross section area?2 5815
Are same transformer be employed for step up and step down services?3 2733
On what basis primary and secondary of a transformer is chosen?2 2201
how to male a d.c bettery to blow a 230v bulb?1 1951
Can a 50-Hz designed transformer be used at 60-Hz system? Is the same remains true, when a 60-Hz designed transformer be used at 50-Hz system? Consider only frequency variation. The voltage remains as rated value in all cases. Justify the answer.2 4598
Hello, im taking an introduction to PLC..and i'm having a hard time on creating a program for 2 lamps blinking alternately with this button characteristics: 1.) One push button (starts upon pressing) 2.) Same push button (when pressed again, will pause the system) 3.) Same push button (when pressed again, will continue the paused system) 4.) Same push button (when pressed within 2 seconds, will shut off the system) Pls..i know this is just a simple problem for you guys..2 1512
In n high voltage 11kv system What happened if 1 of CT cable (IDMT) loose.Will e/f or o/c trip.please explain detail1 1886
In UPFC,What is the need for Dc link ( DC capatior)?1 2499
Can a transformer designed for a particular voltage and frequency rating be used for different set of mentioned ratings? Assume that the winding does not get burnt because of overheating at higher voltage. If yes, then under which constraint it is possible?1 1104
what is basically a pulse transformer?1 4542
whose motors self starting synchronous or Induction motor?give fact reason why not self starting another mother2 2282
What does the a,b,c of 95a,95b,95c relays denotes?
armature is that part in which current is induced since in dc motor we supply current to the conductor so why we call it armature?
i need of the bhel question papers along with answers and also give some website names for the downloading question (electrical and electronics engg question)please help me....
what will happens if one phase is missing for 33/11kv power transfomer and why?
why star point of HT motor not earthed?
How will change the frequency in distribution side?
I have done my m.tech in electrical engg discipline. Can any one please suggest me how should I prepare for getting into phd in iit or nit.How should I prepare for getting into lecturership
i have install 750 kva distribution transformer at my site and want to do neutral earthing. what calculations should i follow to determine earthing conductor material and size?
do we use links in a dc circuit?if so what s its use in it?
what is the operating time for LBB and how does the LBB relay realise whether cb is opened or not?
diameter of cable and core is doubled then the value of capacitance is
FOR 16/20 MVA 132/33 KV ONAN/ONAF TYPE TRANSFORMER IT IS DESIGNED FOR 16 MVA WITH ONAN CONDITION.IT BECOMES 20 MVA UNDER ONAF CONDITION.LOAD LOSS IS GUARANTEED FOR 65KW AT 20 MVA AND % IMPEDANCE 13.75. PLEASE TELL US AT WHAT LOAD LOSS AND % IMPEDANCE IT SHOULD BE DESIGNED FOR 16 MVA AND WHAT WILL BE ITS EFFICIENCY AT 20 MVA?
What should be the voltage between Neutral and Ground in secondary side of the step down transformer (230 V to 110 V) with no load condition?
what is the id1 & id2 setting in differential protection relay of CSPC?
wish of these transformer uses oil?