Efficiency Equations for AC Generators., Electrical Engineering

Most ac generators used in Power Stations are of the " Flux Cutting " types. Their effiencies range from less than 33% to slightly more than 60%. In their efficiency equations, they tend to stress on Power Factor correction. They tend to neglect the effect of " Lorentz Force " , F = BILN , which can be very huge, acting in the OPPOSITE direction to the rotation of the rotor. They have to use steam-turbines to overcome this force. My question is : Why " Lorentz Force " term not included in the Efficiency equations. If " Lorentz Force " is very difficult to solve, why not use " Magnetic Induction " type ac generators in Power Stations. Best Regards, UNGKU KAMAL.
Posted Date: 3/10/2013 7:35:39 AM | Location :







Related Discussions:- Efficiency Equations for AC Generators., Assignment Help, Ask Question on Efficiency Equations for AC Generators., Get Answer, Expert's Help, Efficiency Equations for AC Generators. Discussions

Write discussion on Efficiency Equations for AC Generators.
Your posts are moderated
Related Questions
write a note on vulcanization

Q. Write and execute a PSpice programto analyze the resistor bridge circuit shown in Figure to solve for the node voltages and the voltage-source current. Then find the voltage acr

The Three-phase alternator In this case, three separate sets of coils are wound on the stator and connected to produce three separate outputs. Because of the physical displace

Mathematical relationship between the induced e.m.f and the network Faraday noted that the e.m.f induced in a loop is proportional to the rate of change of magnetic flux by it:

What is the difference between near call and far call? The PROC directive specifies the start of a procedure, should also be followed along with a NEAR or FAR. A NEAR procedure

Energy Conservation Building Codes It encompass the norms and standards of energy consumption expressed in terms of per square meter of the area wherein energy is used. The


Athree-phase,wye-connected, 220-V, 10-hp, 60- Hz, six-pole inductionmotor (using Figure 13.2.6 for notation) has the following parameters in ohms per phase referred to the stator:


in case of a differentiator will the amplitude rise or falls?