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| Capacitor-start induction run motor | a type of single phase induction motor that has a capacitor in series with the starting winding only during the startingoperation. This type of motor has high loked rotor otorque with low amp draw, high breakdowntorques used on hard starting applications such as compressors, positive displacement pumps, conveyors, etc. |
| Capacitor-start Capacitor run motor | Performance and applications are similar to capacitor start induction run, the capacitor run enables operation at lower current damend and improved efficiency. Used on larger single-phase HP ratings. |
| Permanant-split capicitor motor | Single phase inductionmotor which has a capacitor continuously in the auxiliary winding unlike the split phase or capacitor start type motors there is no centrifugal switch to disconnect the auxilliary winding. this type of motor has low starting torque and is best suited for direct drive applications such as fans, blowers, etc. PSC motors are much more efficient than shaded pole. |
| Rotating field speed | the speed of a rotating magnetic field |
| Resistance start induction run motor | a split-phase induction motor with a starter inserted in series with the startup winding, creating capacitance |
| split phase motor | the most common type of single phase induction motor. Equipped with a starting winding displaced in magnetic positon from, and connected in parallel with the main winding. Generally, the motor has low to moderate locked rotor torque with high locked rotor amps, high breakdown torques, and is used on belt drive blowers, fans, pumps, etc. |
| start winding | starting torque — the torque or twisting force delivered by a motoro at the |
| Magnetic flux | is a measure of quantity of magnetism, taking into account the strength and the extent of a magnetic field. |
| Shading coil | a part of a shaded pole motor; it's a copy coild that provides the necessary displacement for starting |
| Consequent pole motor | a motor that has a winding for every two speeds (three speed motors has two windings). |
| Interlocking | to connect so that the motion or operation of any part is constrained by another |
| slip ring | one of two or more continuous conducting rings from which the brushes take or to which they deliver current in a generator or motor |
| Isolation transformer | transformer used to reduce or eliminate electrical noise by modifying the amount of voltage or current on the line. |
| Step up transformer | Transformer in which the output AC voltage is greater than the input AC voltage. |
| Step down transformer | A type of transformer used for welding power sources that converts high-voltage, low-amperage industrial power to low-voltage, high-amperage power. |
| Volts per turn | commonly used for large transformers; developing voltage corresponding to the number of turns of the motor. |
| Stator | a component in a motor that contains the windings: it does not turn. |
| Bearing | a device that urrounds a rotating shaft and prvides a low-friction contact surface to reduce wear from the rotating shaft. |
| Bushing | an electrically insulating lining for a hole to protect a through conductor |
| B.T.U. | British Thermal Units |
| Calorie | heat required to raise the temperature of 1 gram of water 1 C, actually from 4 C to 5 C. Mean calorie = 1/100 part of the heat required to raise 1 gram of water from 0 to 100 C. |
| Condenser | The component in a refrigeration system that transfers heat from the system by condensing refrigerant. |
| N.E.M.A. | National Electrical Manufacturers' Association. This organization sets electrical and mechanical standards for electric motors |
| Rotor | The rotating part of most alternating current motors |
| Coupling | a means of electric connection of two electric circuits by having a part common to both |
