Industrial Repair & Servo Motor References
Industrial Motor Information
A&C Electric is dedicated to providing our customers with up-to-date information, statistics and schematics regarding the high quality electric and servo motors available in today’s market. Keeping our customers informed and knowledgeable about electric motor technical advancements and the wide range of electrical and servo motors available in our inventory is just one of the many ways A&C Electric works to provide our customers with the services they require.
Our Motor References section will feature regular informational updates from members of the A&C Electric staff. From important information to technical data, electric motor failure statistics, electric motor maintenance tips and tricks, and servo motor specifications. A&C Electric will supply our customers with the all information they need and more. Be sure to check back often as we will be continuously posting new and educational information.
Contact industrial motor experts at A&C Electric for a quote on repair services or to purchase a new or refurbished electric motor.
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Five Cases Where 3-Phase Motors May Run Single Phase
If a one phase conductor supplying a 3-phase running motor is opened the motor usually continues to run as a single-phase machine. But current drawn by the operating phase is greater than design conditions for the winding. You may not discover single-phasing until the winding is damaged. Under some conditions, you may not recognize it at all. Preventing trouble is simple: use overload protectors i ...Read More -
Motor Power Factor and Energy Conservation
Energy conservation is a hot topic these days and everybody "knows" that low power factor can mean waste of electrical energy. Many questions are asked about the power factor of induction motors. Some competitors stress the high power factor of their motors. Why don't we? Induction motors are only one of the kinds of electrical equipment that tend to reduce a plant's power factor. And it's the ov ...Read More -
Unbalanced Voltage On Polyphase Induction Motors
Three phase induction motors are designed and manufactured such that all three phases of the winding are carefully balanced with respect to the number of turns, placement of the winding, and winding resistance. When line voltages applied to a polyphase induction motor are not exactly the same, unbalanced currents will flow in the stator winding, the magnitude depending upon the amount of unbalance ...Read More -
Voltage & Frequency Variation Operation Requirements
Variation from Rated Voltage: In accordance with NEMA MG 1, 12.44, motors shall operate successfully under running conditions at rated load with variation in the voltage up to the following percentages of rated voltage: Universal motors except fan motors - plus or minus 6 percent (with rated frequency). Induction motors - plus or minus 10 percent (with rated frequency). Performance within ...Read More -
Electric Motor Terminology
Accelerating Time: The time required for a motor to reach full speed from standstill (zero speed) position. AC Contactor: An alternating current (ac) contactor is designed for the specific purpose of establishing or interrupting an AC power circuit. Accelerating Torque: The torque developed from standstill (zero speed) to full speed at nameplate voltage. Sometimes the term "Net Ac ...Read More -
Motor Pro Training
Nidec offers a "Motor Pro Training Program" that allows beginners to understand the basic components of an electric motor. Click here for the link. ...Read More
