Electrical Troubleshooting and Preventive Maintenance
Electrical
Course Number: ETP-302
Course Description:
This two-day course was created to improved electrical troubleshooting skills as efficiently as possible, and it was designed to cover the most commonly performed electrical troubleshooting tasks that a maintenance technician faces in their job every day. Classroom activities have plenty of hands-on and meter work training technicians to resolve problems using logic and testing. The attendee will work with schematics to diagnose problems related to MCC’s (motor control centers), timing circuits, remote starting circuits, and control circuits. Preventive maintenance includes testing and troubleshooting polyphase induction motors, checking lighting circuits, checking fuses and testing calibration of molded case circuit breakers using primary voltage injection to “exercise” the breaker.
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Each student will receive class books, work activity sheets, self-test progress evaluations, as well as questions from the instructor to make sure they understand the material presented. It is expected that an attendee will leave the class with the basic knowledge of the subject and possess new found skills to better equip them when they return to their job. A certificate suitable for framing will be issued to each attendee who successfully completes the course.
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Hands-on activities:
50% to 60% hands-on activities
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Free Materials included:
Ugly’s Electrical References ($30 value)
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2-day course: $1095 per person
Course Syllabus
BASIC SKILLS FOR ELECTRICAL TROUBLESHOOTING
· Safety First
· OSHA Requirements Regarding Troubleshooting and Qualified Persons
· Using Electrical Drawings for Troubleshooting
· Using Electrical Meters to Perform Circuit Measurements
· Developing a Logical, Systematic Approach to Troubleshooting
TROUBLESHOOTING CONTROL CIRCUITS
· Building a Circuit from a Ladder Diagram
· Control Circuit Industrial Applications
· Control Relay Logic Circuits
· Automatic Motor Control Circuits
· Timer Sequence Circuits
· Testing Field Components
· Control Relays
· Motor Starter Contactors
· Overload Devices
· Solid State Timers
· Limit Switches
· Auxiliary Contact Blocks
· Indicator Lamps
· Push Buttons and Selector Switches
· Circuit Breakers and Fuses
TROUBLESHOOTING MOTORS
· Most Common Motor Problems
· Electrical and Mechanical Concerns
· Performing Electrical Tests on a Motor
· Using the Megohmmeter on a Motor
· Testing Windings for Shorts, Opens and Ground Faults
· Phase Unbalance
· Phase Rotation Testing
· Forward/Reverse Motor Starters
TROUBLESHOOTING POWER DISTRIBUTION
· Wye and Delta Systems
· Overcurrent Protection
· Checking and Replacing Fuses
· Branch Circuits
POWER QUALITY PROBLEMS
· Sources of Power Quality Problems
· Test Equipment for Troubleshooting Power Quality Problems
· Harmonics
· Phase Unbalance
TROUBLESHOOTING LIGHTING CIRCUITS
· Lighting Terminology
· Types of Lighting Circuits
· Incandescent Lighting
· Fluorescent Lighting
· HID Lighting
· LED Lighting
TROUBLESHOOTING PROGRAMMABLE LOGIC CONTROLLERS
· Overview of PLCs
· Reading PLC Ladder Diagrams
· Status Indicators and Error Codes
· Force and Disable
· Startup Procedures
TROUBLESHOOTING VARIABLE FREQUENCY DRIVES
· VFD Terminology
· VFD Basic Operation
· Common Problems and Corrective Action
ELECTRICAL PREVENTATIVE MAINTENANCE
· Why Perform Electrical PM
· Overview of Electrical PM Program
· Building Your Own PM Checklist
Course Pictures
Demonstration of Large Breaker:
Troubleshooting at the MCC:
Try It This Way:
Safe Out the Switch Gear:
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Meggering a Motor:
