If a current -8+6sin6t is flowing three ammeter, one is a centre zero PMMC meter, one is true rms meter and one is moving iron meter. What are the reading of these three meter respectively?
2304The 3 phase 400 hp 440 volt slip ring induction motor do not take one phase amps why ? The motor is running good condition
1 1974Can anyone explain about Control and power circuits of star delta starter & DOL starter ? How it works? please!
1 4273why do we connect voltmeter in parallel,why not in series,and why do we connect ammeter in series why not in paprallel...
4 9872Post New Electrical Engineering Questions
please send me last 5 year interview questions
what is the minimum pay scale for electrical engineer (building construction)in kuwait? plz revert back with yrs of experience & pay scale respectively.
pls someone send me sample question papers along with the key.thanks in advance
What types of CMOS memories have you designed? What were their size? Speed? Configuration Process technology?
what is meant by IGBT how they differ from tyristor ?
what will happen if synchronous machine rotor fed from single phase ac supply
1- XC and the RC time constant are both measures of the reaction of C to a change in ____? 2-The power factor is a numerical ratio with a value between 0 and 1 equal to the ______________ of the phase angle. 3-When V and I are out of phase because of reactance, the product of V times I is called ______________ power 4-For _____________ inductors, the branch currents can be added algebraically. 5- The ______________ power in watts can be calculated as I^2R 6-Calculate XL with L = 30mH and f = 1kHz ( I have Xl=2piFL 2*3.141592653*1kHz*30mH =188 ohms Please check) 7-A parallel RL circuit has the values, R = 5kohms, XL = 5kohms. A voltage source of Vt = 10Vrms is connected in parallel to R and L. Determine the total current, It delivered by the voltage source Vt. 8-A series RC circuit has R = 1Mohm and C = 1microF. How long would it take for the capacitor to fully discharge if it is initially fully charged? 9-A circuit has real power = 300W and an apparent power of 500VA. Determine the power factor and phase angle. 10-The time constant for an LR series circuit is T = 0.1s and R = 10ohms. Calculate the inductance L.
what is a reactive power? what is the relation with power factor?
I am shobana from Chennai. I am having my personal interview on 19th Dec at Chennai.kindly mail me the questions to mail id shobana.shanthi@gmail.com
i karmveer bharti persuing b.tech . plz send me syllabus and name of reference books. for preparation of section eng.
HI SIR, AM PREPARING FOR RRB FOR SECTION ENGINEER POST. PLZ SEND ME THE PREVIOUS QUESTION PAPERS AND HELP ME. I HAVE NO ENOUGH TIME MY EXAM DATE IS 22ND JUNE.... MY EMAIL ID IS nalla.amarnath@gmail.com
Hi, This is Laila. I am selected for syndicate bank interview. Could you please share your views and the questions asked if you have faced the interview My email id is laila_honey09@yahoo.com Please send as fast as u can.Thank You Thanks... Laila.
RESPECCTED SIR/MADAM- I AM PRERING FOR SECTION ENGINEER (ELECTRICAL) RRB CHANDIGARH PLEASE SEND ME SOME PREVIOUS YEAR QUESTION PAPER OR MODEL PAPER.MY EXAM IS ON (30- NOVEMBER 2008).I AM VERY THANKFUL TO YOU. FROM- HARENDRA SINGH YADAV
Pls mail me utility & Dg related question with answer
Q.1:What protection will be used on HT and LT side of 33/0.4 KV, MVA transformer. Indicate capacities of protective device to be used. Q.2:Which types of back-up protections are used in the power transformers? What do you understand by the term over travel in the relay? Q.3:How star and delta connected winding transformer are provided from earth fault