Site Overlay

AMPLIDYNE GENERATOR PDF

An Amplidyne is a rotating amplifier. It is a prime-mover-driven d.c. generator whose output power can be controlled by a small field power input. An amplidyne is. 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. Amplidynes are special-purpose dc generators. They supply large dc.

Author: Zulumi Sharn
Country: Algeria
Language: English (Spanish)
Genre: Software
Published (Last): 12 November 2015
Pages: 248
PDF File Size: 12.86 Mb
ePub File Size: 18.45 Mb
ISBN: 592-8-92990-574-9
Downloads: 8969
Price: Free* [*Free Regsitration Required]
Uploader: Dadal

Both synchros are connected to the input of an electronic amplifier, but a relay, switching circuit, or electrical gejerator automatically selects the output of either the coarse or the fine synchro. There are two basic types of inverter available, known as modified sine-wave inverter and pure sine wave inverter, the former being the most common and least costly.

The magnet is genwrator the screw head. Most electric motors operate through the interaction between the motor’s magnetic field and winding currents to generate force in the form of rotation.

In fluid powered devices, the stator guides the flow of fluid to or from the rotating part of the system. When the source of the input voltage senses the correct movement of the object, it drops the voltage to zero.

How an amplidyne works An amplidyne is an electric motor which turns a generator on the same shaft. Characteristically, linear induction motors have a finite primary or secondary gennerator, which generates end-effects, whereas a conventional induction motor is arranged in an endless loop.

The amplidyne’s frequency response is limited to low frequencies, it cannot even handle audio frequencies, so its use is limited to amplifying low frequency control signals in industrial processes.

In addition to AC versus DC types, motors may be brushed or brushless, may be of various phase see single-phase, two-phase, or three-phaseand may be ei Such brushes provided poor commutation as they moved from one commutator segment to the next.

What is an Amplidyne? – Circuit Globe

They supply large dc currents, precisely controlled, to the large dc motors used to drive heavy physical loads, such as gun turrets and missile launchers. Specifically, the phase of the control transformer’s output in phase with the synchro power source, or opposite phase provided the polarity of the error signal.

  BENJAMIN BRITTEN HYMN TO THE VIRGIN PDF

The rotor of the synchro control transformer is turned by the response shaft, which is geared to the load and so indicates what the position of the load actually is.

These provided a amplivyne characteristic useful for propulsion, providing high torque at lower speeds for acceleration of the vehicle, and smplidyne torque as speed increased. A further measure of control was provided by using pairs of motors on a vehicle; for slow operation o A “horseshoe magnet” made of alnico, an iron alloy. The next circle represents the armature, and the outer structure is the stator with a coil carrying the exciting current wound on its pole piece. The brake unit is a safety mechanism which locks the drive and holds the mount stationary if power supply fails during power operation.

In response to an increased error, the amplidyne generator promptly supplies the necessary added power. These challenges are being overcome by advances in the theory, by the use of sophisticated computer design tools, and by the us As a result the inrush current is reduced. It was superseded, first by a two-brush dynamo equipped with an external voltage regulator, and benerator by an alternator. The simplest case is a switch to connect a motor to a power source, such as generayor small appliances or power tools.

Member feedback about Amplidyne: Brushes Ampludyne and B 2 on this axis are short-circuited and so permit currents to flow in amplidynf armature conductors. An electric generator is mechanically identical to an electric motor, but operates in the reverse direction, accepting mechanical energy such as from flowing water and converting this mechanical energy into electrical energy.

Metadyne topic A metadyne is a direct current electrical machine with two pairs of brushes. Line regenerative variable frequency drives, showing capacitors top cylinders and inductors attached which filter the regenerated power. The first stage is primarily a rectifier stage ampkidyne which two direct currents are produced whose magnitudes are controlled by the error signal.

The GE Amplidyne 115 to 250 Volt Motor Generator

The moving parts in a machine can be rotating rotating machines or linear linear machines. Brushes B 3 and B4 on the horizontal axis make these voltages available at the load terminals.

  CHANGELING RITES OF SPRING PDF

Disadvantages The third brush dynamo had the advantage of simplicity but, by modern standards, it gave poor voltage regulat The ends of the armature coils in a DC generator are connected to copper bars on a commutator which rotates with the armature.

A current through any conductor creates a circular magnetic field around the conductor due to Ampere’s law. A field coil is an electromagnet used to generate a magnetic field in an electro-magnetic machine, typically a rotating electrical machine such as a motor or generator.

The balanced rotor upper right has been removed and turned upside-down. The technical description is “a cross-field direct current machine designed to utilize armature reaction”.

The other end of the field winding was connected to a switch which could be adjusted by inserting or removing resistance to give “low” or “high” charge.

Connected to automatic anti-aircraft gun directors, the tracking motion in two dimensions had to be extremely smooth and precise.

Amplidyne – Wikipedia

The view is perpendicular to the channel axis. A traction motor is an electric motor used for propulsion of a vehicle, such as an electric locomotive or electric roadway vehicle. As with other types of synchro units, synchro control transformers can be used in pairs in a double-speed arrangement. The system diagram right is a feedback control system in which a feedback signal from a sensor representing the current position of the gun is compared with the control signal which represents the desired position, and the difference is amplified by the amplidyne generator to turn the gun mount motor.

As a result, voltages are induced in the armature coils. Electric motors Revolvy Brain revolvybrain bldfig harshal. Electrical generators Revolvy Brain revolvybrain. Brushed motors continue to be used for electrical propulsion, cranes, paper machines and steel rolling mills.