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A motor soft starter is a device used with AC electrical motors to temporarily reduce the load and torque in the powertrain and electric current surge of the motor during start-up. This reduces the mechanical stress on the motor and shaft, as well as the electrodynamic stresses on the attached power cables and electrical distribution network ...
From 2008, the business turned away from shops in town centres to larger out-of-town stores under the Currys PC World brand, combining the operations of Currys with Dixon's PC World under one roof; after the formation of Dixons Carphone in 2014, the stores gained Carphone Warehouse departments. It was announced in July 2021 that all Currys PC ...
The motor side of the unit in case Nos. 2 and 3 can be driven directly by an AC power source (typically when in inverter bypass), a 6-step double-conversion motor drive, or a 6-pulse inverter. Case No. 1 uses an integrated flywheel as a short-term energy source instead of batteries to allow time for external, electrically coupled gensets to ...
Negative-temperature-coefficient (NTC) thermistors are commonly used in switching power supplies, motor drives and audio equipment to prevent damage caused by inrush current. A thermistor is a thermally-sensitive resistor with a resistance that changes significantly and predictably as a result of temperature changes.
The motor from a 3.5 in floppy disk drive. The coils, arranged radially, are made from copper wire coated with blue insulation. The rotor (upper right) has been removed and turned upside-down. The gray ring inside its cup is a permanent magnet. This particular motor is an outrunner, with the stator inside the rotor. DC brushless ducted fan. The ...
Cordless phone The term cordless is generally used to refer to electrical or electronic devices that are powered by a battery or battery pack and can operate without a power cord or cable attached to an electrical outlet to provide mains power , allowing greater mobility. [ 1 ]
One voltage cycle of a three-phase system. A polyphase system (the term coined by Silvanus Thompson) is a means of distributing alternating-current (AC) electrical power that utilizes more than one AC phase, which refers to the phase offset value (in degrees) between AC in multiple conducting wires; phases may also refer to the corresponding terminals and conductors, as in color codes.
Batteries Plus (stylized as Batteries+, formerly Batteries Plus Bulbs stylized as Batteries+Bulbs) is an American retail chain of 600+ franchise outlets [2] founded in 1988 that sells and recycles [3] [4] [5] batteries of varying size and voltage that provide power to operate consumer electronics, watches, cell phones, digital cameras, automobiles and other devices that require DC power. [6]