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Schematic of a permanent magnet motor using brushes and magnets in the stator. A permanent magnet motor is a type of electric motor that uses permanent magnets for the field excitation and a wound armature. The permanent magnets can either be stationary or rotating; interior or exterior to the armature for a radial flux machine or layered with ...
A permanent magnet synchronous generator is a generator where the excitation field is provided by a permanent magnet instead of a coil. The term synchronous refers here to the fact that the rotor and magnetic field rotate with the same speed, because the magnetic field is generated through a shaft-mounted permanent magnet mechanism, and current is induced into the stationary armature.
Engineered fire suppression systems are design specific and most commonly used for larger installations where the system is designed for a particular application. Examples include large marine and land vehicle applications, server rooms, public and private buildings, industrial paint lines, dip tanks and electrical switch rooms. Engineered ...
An electropermanent magnet or EPM is a type of permanent magnet in which the external magnetic field can be switched on or off by a pulse of electric current in a wire winding around part of the magnet. The magnet consists of two sections, one of "hard" (high coercivity) magnetic material and one of "soft" (low coercivity) material. The ...
Suitably qualified and experienced fire protection engineers may qualify for registration as a professional engineer. The recognition of fire protection engineering as a separate discipline varies from state to state in the United States. [24] NCEES recognizes Fire Protection Engineering as a separate discipline and offers a PE exam subject. [25]
The main objectives of the fire and gas system are to: Detect at an early stage the presence of flammable gas using gas detectors. Detect at an early stage hazardous liquid spills. Detect incipient fire and the presence of fire using fire detectors. Provide automatic and/or facilities for manual activation of the fire protection system as required.
Top transfer portal target Eric Singleton Jr., who led Georgia Tech in receiving each of the past two seasons, is on his way to Auburn, the school announced Monday. Singleton was rated as the No ...
A fire alarm pull station is an active fire protection device, usually wall-mounted, that, when activated, initiates an alarm on a fire alarm system. This is the most common design in North America. This is the most common design in North America.