Answer / ajit

power factor correction improve with capacitor or reduce
reative load

Answer / vijay balu raskar

Power factor is ratio of active power to appearant power. we have to use capacitor bank to improve power factor.Also, removing inductive loads. As per power factor error.

Answer / parmod kumar

Power factor can be improved by following method:

1. By use of Capcitor Bank
2. By use of Synchronous motors.

i want to know that how the height of Ct ,cvt ,LA calculated on the basis of creepage distance

0 Answers   Vedanta,

---

In PFI plant one stage capacitor connection is directly connected(with out megnetic contact controll). but why?

0 Answers   Aegis,

---

In Swinburne's Test on D.C.machines, why the efficiency is more when the machine runs as generator than when it runs as motor???

6 Answers   College School Exams Tests, GE, MVR, Practical Viva Questions,

---

5. What is PMG in Alternators?

11 Answers   L&T,

---

why we are connecting the alternator to a steam turbine of higher RPM then the rated RPM of alternator? For example:( connecting 1500 rpm alternator to 7600 rpm steam turbine). we can directly connect the same rpm turbine to alternator know??? is there any special reason ???

2 Answers  

---

determine two methods to find loose connection in operational electrical system?

0 Answers  

---

In electrostatic precipitator why positive terminal of tranformer rectifier unit is grounded?

2 Answers  

---

what happens when a power transformer neutral earthing broken???

11 Answers   MacLellan,

---

Write the force balance equation of ideal dashpot element.

0 Answers  

---

What are various impedence in any machine

2 Answers   Engineers India Limited, NTPC,

---

What are methods to avoid the inrush current at the time of starting of power transformer ?

8 Answers   Wipro,

---

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 ??

5 Answers   TATA,

---