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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?
1977dear 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 5912What 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?
1903In 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
2000The 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 88421. 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 8461Post New Electrical Engineering Questions
what is the power factor used by the PHCN in nigeria? 2. what is the difference between an alternator and generator. 3. Generation of poweris in KV but how is transmission is in MW. 4.If the transmission of power is 20,000MW how can it be increaesed to 80,000MW
What is meant by celling voltage & current in excitor ?
how does high earth to neutral voltage affects electronic circuit?
Witch do depand of Power factor and theory of power factor?
How to calculate energy stored in a capacitance
i completed my DEEE. and i want to electrical c license. how to get it..?
What is the function of probe in cro?
why sielent pole is used only in hydro generators and not in turbo generators
How to calculate Temp from Resister from PT100 equation,
What is the angle of inclination for the oil connection from transformer conservator to Bucholz relay and why?
How to calculate wire length,size & current? ( related to control panel)
Why does the radius of armature is less than the radius of pole shoe?
What is the loss of power of transformer 220kv/33kv,63/80mva of % imp12.05 at 80%load
What is the name of transformers oil filteration equipment?
we have 2.2kw,Y,3000rpm motor but 6leads found in TB what happen if we connect in delta?
