By Leona Coste. wiring. Published at Monday, March 25th, 2019 - 14:00:21 PM.
For wiring a single-phase motor, the most important objective is to distinguish the starting circuit from the main winding. These two circuits are isolated from one another electrically if the lead wires are separated and not in contact with each other. Initially, the ohmmeter can be used to determine which wire belongs to which circuit as well as checking continuity between leads. You should be able to isolate into two groups any leads which have continuity with one another. The starting circuit is likely to isolate to two leads, the running circuit may have two or more leads that show continuity. If the running circuit has more than two leads, you will need to determine how those leads are to be used for voltage or speed changes.
Porter said he first started selling to local Oklahoma dealers ”who liked it and came back for more.” Then local distributors wanted to be involved; they now stock his products. A larger southern utility company, Georgia Power Supply, got word of his product and invited him to make a presentation at an open house in Atlanta. ”Those dealers present who were opposed to heat pumps now recognize it as a good thing,” Porter said. ”Georgia is one of our best markets.”
Anyone whose job involves servicing electric motors has encountered the problem of a missing nameplate. Other articles in the Motor Doctor series have covered ways of determining the specifications of a motor lacking the nameplate, but what if you are trying to figure out how to wire that motor? For some kinds of motors, principally motors with terminal-based connections, basic wiring is self evident. The terminal board itself usually has markings that indicate where line one and line two are to be connected. But what if you need to reverse that motor, use a different (but available) voltage setting, or have a motor that has nothing more than a bunch of color-coded or numbered leads coming out of it?
The book also includes end of section review questions and exercises that can be torn out and handed into the instructor for grading. A separate instructor supplement containing the answers to the end of section exercises is also available.
Any content, trademark’s, or other material that might be found on the Eventionline website that is not Eventionline’s property remains the copyright of its respective owner/s. In no way does Eventionline claim ownership or responsibility for such items, and you should seek legal consent for any use of such materials from its owner.