How are calculated the aluminium busbar cross section area?2 6039
Are same transformer be employed for step up and step down services?3 2872
On what basis primary and secondary of a transformer is chosen?2 2325
how to male a d.c bettery to blow a 230v bulb?1 2059
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 4804
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 1608
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 1985
In UPFC,What is the need for Dc link ( DC capatior)?1 2574
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 1170
what is basically a pulse transformer?1 5040
whose motors self starting synchronous or Induction motor?give fact reason why not self starting another mother2 2365
what is a pulse transformer? how rise time of pulse changes when ever the voltage changes?
How to measure the earth resistance value in a concrete pavement(flood light area)?
IF I KNOW THE AREA OF CROSS SECTION OFTHE WIRE , WATTAGE OF THE LOAD ,VOLTAGE SUPPLY WHAT IM GIVING TO THE LOAD AND ALSO POWER FACTOR OF LOAD ....... SO GIVE ME FOR WHAT AMOUNT OF CURRENT I SHOULD USE WHICH TYPE OF CABLE?
Plugging is a phenomenon to= A braking the motor B to accelerate the motor C to run IM as generator D to start the motor
sir, I am from EEE branch.On feb 17 iam going to write an Exam for hindustan petrolium corporation Ltd.So plz send me the written exam pattern/Q's/interview questions.please mail to email@example.com
What is the high series capacitance winding on high voltage power transformer ?
does a DG set has low fault level as compared to that of a transformer.If yes then why.
what is an unbalance in acircuit? in a three phase 3wire circuit how an unbalance will come? in a three phase four wire system how an un balance is coming?
can you any one give exact mathematical relation between AC current and DC current?
In control room of our one plant there is a continuously the incoming power goes to PC is vary,means in stabilizer it continuously indicate from high input to low and low input to high. what is the reason and its solution.
HOE WE CAN IMPROOVE BY USE OF CAPACITOR
why -48 volts dc used in telecommucation
What is the difference between AC and DC injection methods for rotor earth fault protection
why the rotor current becomes in steady state during high slip region? please verify with equations.
What are the weight of 800KV DA,DB and DC type tower ?