- Settore: Electrical equipment
- Number of terms: 4774
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Armature resistance is measured in ohms at 25f C. (cold.)
Industry:Electrical equipment
A motor using an external cooling system. This is required in applications where the motor's own fan will not provide sufficient cooling; this is true for certain duty cycle applications, slow speed motors, also in environments with extreme dirt. Often a duct with an external blower is used to bring clean air into the motor's air-intake.
Industry:Electrical equipment
The force or loads that are applied to the motor shaft in a direction parallel to the axis of the shaft. (Such as from a fan or pump.)
Industry:Electrical equipment
A term commonly used to describe the stationary (Stator) member of a DC Motor. The field provides the magnetic field with which the mechanically rotating (Armature or Rotor) member interacts.
Industry:Electrical equipment
The back end of a normal motor is the end which carries the coupling or driving pulley. (NEMA) This is sometimes called the drive end (D.E., pulley end P.E.) etc.
Industry:Electrical equipment
The introduction of resistance in series with the shunt wound field of a DC motor to reduce the voltage and current which weakens the strength of the magnetic field and thereby increases the motor speed.
Industry:Electrical equipment
The speed which a DC motor develops at rated armature and field voltage with rated load applied.
Industry:Electrical equipment
Mounting endshield with special rabbets and bolt holes for mounting such equipment as pumps and gear boxes to the motor or for overhanging the motor on the driven machine.
Industry:Electrical equipment
Are used to reduce friction and wear while supporting rotating elements. For a motor it must provide a relatively rigid support for the output shaft.
The bearing acts as the connection point between the rotating and stationary elements of a motor. There are various types such as roller, ball, sleeve (journal), and needle.
The ball bearing is used in virtually all types and sizes of electric motors. It exhibits low friction loss, is suited for high speed operation and is compatible in a wide range of temperatures. There are various types of ball bearings such as open, single shielded or sealed. Reliance offers a unique PLS bearing system.
Industry:Electrical equipment
The magnetic field which is established around an energized conductor or permanent magnet. The field is represented by flux lines creating a flux pattern between opposite poles. The density of the flux lines is a measure of the strength of the magnetic field.
Industry:Electrical equipment
