Why current shoots up in the secondary on the knee point voltage during saturation test of CT? How core saturation effects the secondary current (while the primary side is open)? What the logic behind this?
1511dear friends, we are use 130 hp load run with 0.98 power factor ( 38KVAR capacitor connected ). if we need improve the the power factor to 1 (unity). how much kvar capacitor to be add. have any formula? please share with me.
3 4764What should be the percentage increase in length of the dead end clamp for bus bar conductor (Hawthorn) after hydraulic pressing and what should be the applied pressure?
1429In Designing the rating & accessories of a MCCB how to choose the type of releases..means what is the basis for selecting, thermal magnetic, electromagnetic & microprocessr based releases
1609The ratio of white balls and black balls is 1:2. If 9 gray balls is added it becomes 2:4:3. Then what is number of black balls ?
CTS,
3 74791. alternator has full load regulation of 4% when pf of the load is 0.8 lag, 1500 rpm. full load regulation of 1400 rpm for 0.8lag will be ________ ?? 2. torque angle of a sync m/c operating from a constt voltage bus is usually defined as space angle between _______ . 3. method most effective in finding out no load losses in large DC shunt motoris ______ . 4. current carrying capacity of fuse material depends on ______ . 5. coil has res. 10 ohm, inductance 1H. what wil be current after 0.1sec after switching on to a 500V DC SUPPL ? ? 6. effect of phase lag compensation on servo systems ___________ . 7. rotor of a dc machine is usually supported upon ______ . 8. DC motor is preferred to AC motor in which application ?? 9. 3 nos of 10:1 Xmer are connected in Star-Delta to supply a load at 230V.the supply voltage must be ______ . 10. voltage source produces max current in which circuit. 11. cal. power, if current and voltage are out of phase by 90 degree. 12. suitable length of Xmission line of power at 66 KV. 13. Which of the theorm helps in simple computation when the load across a ckt is varying ?? 14. what is the adopted line length for power Xmission of power by cables ??
TATA,
5 6998Post New Electrical Engineering Questions
how to calculate power consumption in slip ring motor at different step
i will applied in 1U-1W on 440 volt primary delta side. what is the result of magtic balance test
draw vector diagram and +ve,zero sequence diagram of symmetrical three phase fault.
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....
Why we used 690V in ACS 800 drives.Why dont use standard voltage like 415v or 1.1Kv
what is the transformer turn ratio formula and give some examples?
technically, what is the reason behind starting the motor star the delta connection .. and what other ways to do this rather than using " star-delta transformer"
What is the high series capacitance winding on high voltage power transformer ?
What is servo motor and what are the applications of servo motor?
What happens if we give the supply to the rotor of induction motor and make its terminal shorted?
what is the voltage rating of chiller unit sensors
What is meant by harmonic distortion?
what work will do diffrential realay DG set
what's producer of XLPE cable laying in undergroung
How can get elongation of 2 k.G aluminium, if elongated aluminium dia is 2.5 mm?
