Difference Between AC and DC Generator

1. Design of AC and DC Generator


The stator in DC generators is in form of a hollow roller with magnetic poles on the inside. The rotor consists of a core, a shaft, a winding and a collector. The core consists of mutually insulated dynamo sheets with grooves. The grooves are wrapped in copper wire whose ends are connected to the collector. The collector is in the form of slices attached to the shaft. Carbon brushes move along the collector and can charge/discharge current. The stator of AC generators has on the inside of the roller a longitudinal grooves in which there are windings, in contrast to a DC electromotor where magnetic poles are located. When the current flows through the windings in the stator, a magnetic field appears. The rotor is similar to that of a DC generator, only instead of the collector on the shaft there are two mutually isolated rings. Rotating of the rotor creates alternating current in the stator coils which is passed to the receiver.

2. Application of AC and DC Generator


Dc power machines can work both as a motor and generator. DC generators suppressed the semiconductor rectifier use. AC generators are vastly used for electrical energy generating/transmitting.


AC vs. DC Generator: Comparison to show the difference between AC and DC Generator

..C Generator

  1. Current flows in one direction
  2. coil is fixed but magnet is rotating
  3. power up applances ,electricty generation

..C Generator

  1. Current flow periodically changes  direction
  2. coil rotates in fixed field
  3. power up motors ,battery charging , small power supply



Comments

Post a Comment

Popular posts from this blog

What is AC Generator? Modern AC sources are, almost exclusively, induction generators, where the principle of work is based on electromagnetic induction. In this case, the electromagnetic current is obtained by rotating the conductors in the magnetic field. Today, almost all alternating current generators are three-phase. This means that in their movable part, which is called a rotor, they have three separate coils, placed between each other at an angle of 120◦, in which three EMC are phase-shifted precisely by 120◦, or in time sequence for a third period. Coils are usually indicated by the letters R, S and T, each of which defines a single phase. Depending on the binding of these coils, the transmission of electricity from the generator to the consumer is carried out with 4 or with 3 conductors. If at the beginnings of all the coils are bound at one point (the so-called zero point), then we are talking about star connection. In that case, the other ends of each coil, are connected wit
Read more

MODULE 3 CHAPTERR 3 QUIZ 1

03. Electrical Terminology .................................. Question Number. 1. If a photon radiating into an electronic device causes the production of an electron/hole pair, the device is known as a. Option A. light emitting diode. Option B. laser diode. Option C. photodiode. Correct Answer is. photodiode. Explanation. NIL .................................. Question Number. 2. Faraday's Law States that. Option A. the magnitude of the EMF is indirectly proportional to the rate of change of flux. Option B. the magnitude of the EMF is directly proportional to the magnetic flux. Option C. the magnitude of the EMF is directly proportional to the rate of change of flux. Correct Answer is. the magnitude of the EMF is directly proportional to the rate of change of flux. Explanation. NIL .................................. Question Number. 3. Which of the following is 1 Amp?. Option A. 1000 mA. ... Option B. 1000 kA. Option C. 1000 μA. Correct Answer is. 1000 mA. Explanation. NIL .
Read more

EASA MODULE 13 AIRCRAFT STRUCTURES AND SYSTEMS

                EASA MODULE 13 AIRCRAFT STRUCTURES AND SYSTEMS SUB-MODULE 01 THEORY OF FLIGHT  SUB-MODULE 03 AUTOFLIGHT                                                                            (ATA 22)  SUB-MODULE 04 COMMUNICATION / NAVIGATION                                       (ATA 23/34) SUB-MODULE 05 ELECTRICAL POWER                                                             (ATA 24) SUB-MODULE 06 EQUIPMENT AND FURNISHINGS                                        (ATA 25) SUB-MODULE 07 FLIGHT CONTROLS                                                                (ATA 27) SUB-MODULE 08 INSTRUMENTS                                                                        (ATA 31) SUB-MODULE 09 LIGHTS                                                                                      (ATA 33) SUB-MODULE 10 ON BOARD MAINTENANCE SYSTEMS                              (ATA 45) SUB-MODULE 11 AIR CONDITIONING AND CABIN PRESSURISATION       (ATA 21) SUB-MODULE 12 FIRE PROTECTION           
Read more