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The motor–generator set may contain a large flywheel to improve its ride-through; however, consideration must be taken in this application as the motor–generator will lose speed and may draw a large current when power returns or the circuit-breaker is re-closed. If the speed loss is excessive (the power outage is too long), the re-closure ...
Turbine engine system ACC Accessory In gas turbine engine ACE Actuator control electronics ACFT Aircraft [3] ACI Airports Council International: ACLS Automatic carrier landing system: Aircraft carrier operations ACM Air cycle machine: Part of A/C air conditioning system ACMS Aircraft condition monitoring system ACP Audio Control Panel ACR
During the last 125 years, various Brush companies (Brush Switchgear, Brush Transformers, Brush Traction and Brush Control Gear) have existed on the Falcon Works site, but throughout this period Brush Electrical Machines Ltd manufacturing generators and motors has always been the largest company. Over 5,000 staff were employed on the site ...
An induction generator produces electrical power when its rotor is turned faster than the synchronous speed. For a four-pole motor (two pairs of poles on stator) powered by a 60 Hz source, the synchronous speed is 1800 rotations per minute (rpm) and 1500 RPM powered at 50 Hz. The motor always turns slightly slower than the synchronous speed.
The motor provides the power, turning the generator at a constant speed, and the signal to be amplified is applied to the generator's field winding. The higher the current applied to the winding, the stronger the magnetic field and thus the higher the output voltage of the generator. So the output voltage of the generator is an amplified copy ...
Separately-excited generators like this are commonly used for large-scale power transmission plants. The smaller generator can be either a magneto with permanent field magnets or another self-excited generator. A field coil may be connected in shunt, in series, or in compound with the armature of a DC machine (motor or generator).
Motor-generator; Rotary transformer This page was last edited on 28 December 2019, at 10:02 (UTC). Text is available under the Creative Commons Attribution ...
An early example of electromagnetic rotation was the first rotary machine built by Ányos Jedlik with electromagnets and a commutator, in 1826-27. [2] Other pioneers in the field of electricity include Hippolyte Pixii who built an alternating current generator in 1832, and William Ritchie's construction of an electromagnetic generator with four rotor coils, a commutator and brushes, also in 1832.