why we pefer the salient pole for synchronous motor ?
- 2 Answers
- 3584 Views
- I also Faced
- E-Mail Answers
Answer Posted / imrul
Salient-pole rotors are used in low-speed synchronous
generators such as those driven by water wheels. They are
also used in synchronous motors. Because of their low speeds
salient-pole generators require a large number of poles as,
for example, 60 poles for a 100-rpm
50 Hz generator.
| Is This Answer Correct ? | 2 Yes | 1 No |
Post New Answer View All Answers
PLS MENTION QUESTIONS ASKED IN IOCL INTERVIEW FOR ELECTRICAL EGG??
Why reactive power is needed in a power system? How is it being absorbed or delivered by alternators? For reactive power control we are changing excitation but reactive power absorbing or delivering related to stator. How these two are interlinked? i want a detailed explanation with necessary expressions and figures?
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.
anyone please send transformer parameter design formulas & details of tap changer ? plz i have interview this week its more helpful for me ?
what about electrical pannel.? What is meant by plc pannel.?
What is transmittance?
If more than rated DC voltage appears across trip coil of the breaker, what will happen? e.g. in 110V DC circuit system, if voltage across battery terminal showing 121 V
How i can decide that HVDC line is best for transmission.
how to check three phase motor torque value?
Define what is power quality meter ?
what is the diference between the 4pole & 6pole DC Motors & what is advantage 6pole over the 4pole ?
what is interpose? where it is used and why it is used?
WHAT IS THE FAULT WHEN 100HP TURBINE MOTOR TRIPS, LIST THE FAULTS AND ITS TRABULESHOOTING TIPS.. MY AUTO TARNSFORMER STARTER TRIPS
What the difference between ac and dc inductor an capacitor
Explain and give me an example of a time when you had to explain some new procedures to your co-workers for quality service delivery, how did you go about it?
