The amplidyne generator is a power amplifier on a large scale. Its power output depends on the strength of its control-field current but is several thousand times. Amplidyne is the most common version of the Metadyne. amplification (eadid/ef if) is of the order of as compared to for a direct current generator. Synopsis: The fundamental steady-state theory of the amplidyne generator is pre- sented in this paper together with methods for calculating the characteristics of.

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Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework. The amplidyne is a DC generator with an internal positive feed-back.

The connections to the commutators are such that the maximum voltage appears across two points on opposite sides of the commutator. If my memory is right, ‘Amplidyne’ is a geneeator of ‘Amplifying Dynamo’ which probably gives you some clue as to how it works. The terminal voltage of an Amplidyne is considered almost constant.

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When the error signal calls for movement of the mount in one direction, one control current must increase and the other must decrease. By using this site, you agree to the Terms of Use and Privacy Policy. As a result, voltages are induced in the armature coils. But it will be difficult to find. They were also used in diesel electric locomotive gennerator systems. A small amplidyne would have a control signal genrator varied from zero to 2 watts.

Please excuse me if I am reaching for more than actually happens, but I hope to just put the question out for debate. In short, watts control 10, watts of output, and this is how an amplidyne works in simple terms. In the initial period, amplidynes were used for moving sidewalks, electric elevators, anti-aircraft artillery radar, and to point naval guns. The amplifier has two stages. If the excitation is cut down to about 1 watt, FC is reduced accordingly, and the normal full-load current of amperes flows through the short-circuit path.


In a simple application, a rheostat could be used to generate the control signal and control a motor of about 40 HP from stopped to generatr speed in either direction.

Close this window and log in. Used to remotely operate the control rods in early nuclear submarine designs S3G Triton. There’s some discussion of the Amplidyne from about half way down this page. Unlike an ordinary motor-generatorthe purpose of an amplidyne is not to generate a steady voltage but to generate a voltage proportional to an input current, to amplify the input.

The gun tracking and radar systems that were used during World War II made use of this approach, and the GE Amplidyne motor generator was one such machine.

The GE Amplidyne to Volt Motor Generator

The output would power the field of a generator that had the armature direct connected to the armature of a motor. The brushes that are perpendicular are called the ‘quadrature’ brushes.

The resulting armature reaction was taken advantage of with a second set of brushes at 90 degrees from the first, fed through a compensating field which balanced out the circuit. The amplidyne is really a motor and a generator. egnerator

The above is an oversimplification and is not meant to describe a functioning system. The synchro control transformer receives the order signal which indicates electrically what the position of the load should be. In following an order amplidyje in automatic control, these currents must be varied in accordance with changes in the error signal. The inner circle is the commutator, with brushes at top and bottom. When a coil of wire is rotated in a magnetic field, voltage are induced in the coil, and, amplidgne the ends of the coil are connected together, these voltages cause electric currents to flow in the coil.


Resources Few production environments have the luxury of ordering new equipment to replace existing machines on their shop floor. They needed too much care with their collector, sets of brushes, bearings, alignement, lubrication and all such stuff that we hate.

Amplidyne – Wikipedia

The main units in this system at the mount are 1 gun train indicator-regulator, 2 hp train motor, 3 brake unit, 4 train-selector switch, 5 master switch, and 6 shifting clutch; those located in the amplidyne control room below deck are 7 train amplidyne motor-generator and 8 amplifier unit.

Electrical power out is much greater than electrical power in, the difference coming from the prime mover turning the shaft. ScottyUK Quote; If my memory is right, ‘Amplidyne’ is a contraction of ‘Amplifying Dynamo’ which probably gives you some clue as to how it works. They were used to supply DC power to process control motors, excitation systems of large AC generators and Ward Leonard speed control systems. AC asynchronous induction IM.