Advantages of a.c generator - the alternator, Electrical Engineering

1) only one pair of slip rings are required (to energise the rotating field coil) regardless of the number of phases produced by the alternator (three phases is common because of torque considerations).

2)  The rotating coil can be supplied from a low voltage DC source and it is easier to use slip rings for this purpose than it would be to output a (typically) high output voltage if connected as a generator.

3) Insulation of the output is easier to achieve if the coils in which the emf is generated are stationary rather than rotating (as they would be if connected as a generator).

4) If permanent magnets can be used in the rotor then no electrical connection is required to the rotor and therefore no slip rings are needed at all. This is a major advantage from the point of view of system reliability. 

Posted Date: 8/27/2012 6:52:53 AM | Location : United States







Related Discussions:- Advantages of a.c generator - the alternator, Assignment Help, Ask Question on Advantages of a.c generator - the alternator, Get Answer, Expert's Help, Advantages of a.c generator - the alternator Discussions

Write discussion on Advantages of a.c generator - the alternator
Your posts are moderated
Related Questions
Name the materials used in case of Fuses . Also give reasons. Fuses : For rewirable fuses, copper-tin and lead-tin alloy is used. For HRC and cartridge fuses silve

Probelm: (a) Explain indexed addressing in 8051. (b) How does the 8051 distinguish between a byte address and a bit address? (c) How do open-loop and closed loop appli

Capacitor-input filter: The capacitor-input filter, as well called pi filter because of its shape which looks like the Greek letter pi, is a sort of electronic filter. Filter

On which principle the generator works?

Q. Sketch the idealized (asymptotic) Bode plot for the transfer function Find the angular frequency at which H(ω) is 0dB and the angular frequency at which θ(ω) = -60°.

coding for vehicle tracking system using gsm in avr atmega16 microcontroller

Q. Illustrate simple telephone communication system with circuit and equation of current flow in microphone? Ans: Simple  Telephone  Communication: In the simplest form of

Give the properties and application of permanent magnetic materials. Permanent magnetic materials: Properties: Permanent magnetic materials have a huge area of hyster

emitter followers regulator

decimal to BCD code encoder active low