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 Categories >> Engineering >> Electrical Engineering
 
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Question Asked @ Answers Views     Select
How to do cable sizing calculation for 750 A Neutral Earthing resistor for 33kv. the 33kv cable going to swbd. is 630mm2 3 runs.    0  2585
what is the voltage between nutral and earth?    2  2499
how can we connect the capacitor bank to improve the power factor?    5  4593
What is A.C Resistance for Earthing ?    2  2277
How to Measure A.C Resistance for Earthing ?    2  2081
What is difference between A.C & D.C Resistance ?    4  3631
what is the formula for calculating of dielectric strength of transformer oil. bhel   2  5570
1. 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  2881
instead of neutral can we use earth/ground to flow the current in the circuit infosys   2  3490
The 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  4080
What is Isolation Current transformer and what purpose to use it in REF relay ?    1  1647
In 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    0  516
Why high Voltages come in multiple of 11, like 11 KV, 33KV, 66 KV, 132 KV etc.    11  12727
what happen when generator neutral supply and transformer neutral supply linked    3  2659
What 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?    0  328
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Un-Answered Questions
 
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why servomotor motor? where i apply for best output? 406
wheather the size of windings in motor and generator are the same 400
1. How many types of mangers? 2.How many types of capacitors? 3.pls tell me normally types alternator problems? 416
Refernce currents are to be generated using refernce cueernts how can this be done?? 399
Does the motor power displayed on the Motor name plate is the mechnical power motor delivers or it is consumed power from the system? 1250
what are the possible reaons & remedies if resistance of NGR getting heat up 315
1. Why is the speed of shunt motor practically constant? 2. Why dc series motor use to start with heavy loads? 3. advantages & disadvantages of separately excited generator over self excited generator? 362
What are factors to be considered while we selecting the Core Balance Current Transformer for Earth fault protection 272
WHY BLADE & JOW OF ISOLETOR IN SUBSTATION? 1601
What is the formula to calculate the rating of power cable for three phase current. 461
hey guys i scored 910 on GRE and 67 on TOEFL respectively.I have an aggregate of about 74%in my B tech.For which colleges should i apply for an MS program in electrical engineering.I am looking for colleges in NJ,SC,NC,GEORGIA, NY. Please reply with a good response..... 300
WHAT ARE THE TYPES OF BUS DUCT? 486
What is the formula for calculating impedance of transformers connected parallel at fault level 50KA? 462
Why efficiency of generator is higher than motor at a particular load? 422
Is there possible to Test Transformer for Overfluxing Capability. Or is there any firm who does Overfluxing Test on Transformer? 1272
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