This course is designed to enhance the technical expertise of electricians, mechanics, maintenance personnel, operators, technicians, engineers, etc., that are associated with electric motors.
Our teaching methods include heavy class participation, visual aids, texts, and actual components.
Our instructors have many years of experience and take a non-intimidating, no-nonsense approach in their presentation. Attendees should bring note-taking material. This course is a minimum 16-hour course.
Overall Objectives: The objective of this course is to give the maintenance technicians the confidence
not in just servicing the DC motor, but to be able to identify the cause of a problem to prevent reoccurrence.
Attendees should have some mechanical skills and be able to attend to detail.
I. Terminology
II. Reducing Motor Failures
III. Causes of Insulation Failures
A. Thermo Aging
B. Line Disturbance
C. Mechanical
D. How Long Should Motor Insulation Last?
E. Types of Motor Insulation (Effects of Aging)
IV. Testing Insulation Systems
V. Testing Insulation Resistance of Rotating Machinery
A. Meg-OHM-Meter (The Can and Cannot Do)
VI. DC Motor Testing has Different Requirements
A. DC Hi-Pot Testing
B. Span Testing
C. Bar-Bar Testing
D. Milli Volt Testing
E. AC Crop Testing
F. Surge Testing
VII. Preparations Before Turning a Commutator in Place (Effects of Aging)
VIII. Commutator Stoning
IV. Testing Insulation Systems
V. Testing Insulation Resistance of Rotating Machinery
A. Meg-OHM-Meter (The Can and Cannot Do)
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