Efficiency Equations for AC Generators., Electrical Engineering

Assignment Help:
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.

Related Discussions:- Efficiency Equations for AC Generators.

Comparison of rs232c and rs422a standards, Explain explanatory notes on com...

Explain explanatory notes on comparison of RS232C and RS422A standards. Comparison of RS232C and RS422A standards: RS232C 1. Standard explained for asynchronous commu

Explain memory mapped i/o scheme, Explain Memory Mapped I/O Scheme. Me...

Explain Memory Mapped I/O Scheme. Memory Mapped I/O Scheme: In such scheme there is only one address space. These address space is defined as all possible addresses which m

Unconditional call instruction - call instruction , Unconditional Call Inst...

Unconditional Call Instruction CALL ( Unconditional Call) Instructions :This  instruction calls the subroutine program stored at memory  location specified  in the  instruction

What are program invisible registers, What are program invisible registers?...

What are program invisible registers? The global and local descriptor tables are determined in the memory system. So as to access and give the address of these tables, the prog

Properties of a semiconductor, Properties of a semiconductor: What pr...

Properties of a semiconductor: What properties of a semiconductor are determined from a Hall effect experiment ? Sol. The Hall Effect experiment is used to determine th

Determine the voltages, Question: a) For the circuit shown in figure ...

Question: a) For the circuit shown in figure (i) Determine the voltages across R1 and R2 and (ii) Determine the current which flows across R1 and R2. Both D1 and D2 a

Diode, #quetunnel diode stion..

#quetunnel diode stion..

Enhancement operation of p-channel enhancement mosfet, Q. Show the Enhancem...

Q. Show the Enhancement operation of p-channel enhancement mosfet? As the gate terminal is insulated from the channel by the silicon dioxide layer, we can also apply a negative

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd