Electrical preventive maintenance is a business practice critical to protecting essential equipment. Avoid unplanned interruptions to business operations by creating an action plan to proactively keep electrical equipment in good operating condition.
This course was created to improved electrical troubleshooting skills as efficiently as possible, and it was designed to cover the most performed electrical preventive maintenance tasks that a maintenance technician faces in their job every day. 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.
• Those working in maintenance that desire to increase their practical knowledge of electrical maintenance standards and practices.
• Industrial, commercial, and institutional electrical engineering
• Maintenance professionals,
• Plant electricians,
• Electrical maintenance supervisors,
• Field and plant personnel.
To enhance the participants’ competency necessary to professionally perform electrical preventive maintenance tasks.
By the end of this course, participant will be able to:
• Understand the reasons for establishing an Electrical Preventive Maintenance (EPM) program.
• Understand what is a EPM and determine its benefits?
• Learn How to design and implement a cost-effective electrical maintenance program.
• Learn the essential procedures for safe operation, repair, testing, and maintenance of major power equipment.
• Learn how to establish what electrical maintenance work can be done inhouse or contracted out.
1. Why Establish an Electrical Preventive Maintenance (EPM) Program
• Value and benefits of a properly administered EPM program EPM and energy conservation.
2. What is a EPM and What are its Benefits?
• planning an EPM program personnel safety equipment loss production economics main parts of an EPM program programmed inspections recordkeeping training for safety and technical skills.
3. Planning and Developing a Program
• survey of electrical installations data collection single line diagrams and data electrical equipment installation change lighting system diagrams ventilation HVAC control and monitoring emergency procedures test and maintenance equipment identification of critical equipment establishment of a systematic program inspection frequency forms, planning, records
4. Personal Safety
• Qualification, tools, equipment, training, arc flash, NFPA 70E, PPE
5. Fundamentals of Electrical Equipment Maintenance
• Scheduling, cleaning, environmental concerns, equipment additions and retrofits
6. Substations and Switchgear Assemblies
• Insulators conductors air-disconnecting switches grounding equipment enclosures switchgear assemblies air circuit breakers arc interrupters oil circuit breakers interrupter switches gas-insulated substations and gas-insulated equipment maintenance and repair of the gis and gie surge arresters instrument transformers and auxiliary transformers protective relays, meters, and instruments ground-fault indicators network protectors
7. Power and Distribution Transformers
• Liquid-filled transformers regular inspections current and voltage readings temperature readings liquid-level indicator and pressure/vacuum gauges special inspections and repairs liquid maintenance and analysis fault-gas analysis dissolved-gas-in-oil analysis dry-type transformers regular inspections current and voltage readings temperature readings
8. Power Cables
• Visual inspection aerial installations raceway installations cable testing
9. Motor Control Equipment
• Motor control preventive maintenance guide components and maintenance of motor controls enclosures bus bar, wiring, and terminal connections disconnects molded case breakers fuses contactors motor overload relays — thermal types pilot and miscellaneous control devices mechanical interlocks
10. Electronic Equipment
• Care and special precautions
11. Molded-case Circuit Breakers
• Types of molded-case circuit breakers phase-fault current conditions ground-fault tripping special-purpose breakers inspection and cleaning loose connections mechanical mechanism exercise
12. Ground Fault Protection
• Personal and equipment protection
13. Fuses
• Fuses rated 1000 volts or less fuses rated over 1000 volts installing and removing fuses inspection, cleaning and servicing replacement
14. Rotating Equipment
• Maintenance, cleaning, testing stator and rotor windings brushes, collector rings, and commutators bearings and lubrication
15. Lighting
• Cleaning, re-lamping, disposal.
16. Wiring Devices and Portable Tools
• Heavy-Duty industrial-type plugs, cord connectors, and receptacles periodic inspection of crucial wear points employee training cord and attachment plug care
17. Testing and Test methods
• Acceptance tests and maintenance tests frequency of tests special precautions and safety qualifications of test operators insulation testing dielectric absorption protective device testing circuit breaker tests transformer turns-ratio and polarity tests impedance testing of equipment grounding conductor infrared inspection meggaring, continuity, hi-pot testing of equipment
18. Uninterruptible Power Supply (UPS) Systems
• UPS system maintenance procedures — general system tests, routine maintenance, special tests
19. Power Quality
• Harmonics transients (surges) voltage sags and swells long-duration undervoltages and sustained voltage interruptions unbalanced voltages and single phasing symptoms — grounding voltage fluctuations and flicker
20. Grounding Symptoms and Causes of Inadequate Grounding
• Grounding system inspection, testing, and monitoring solutions to inadequate grounding
21. Supervisory Control and Data Acquisition (SCADA)
• Concurrent maintenance preventive maintenance testing reliability-centered maintenance (RCM)
22. EPM from Commissioning (Acceptance Testing) Through Maintenance
• Commissioning planning stages submit functional performance tests (FPTs) costs of commissioning, new construction suggestions for inclusion in a walk-through inspection checklist
23. Single line Diagrams and Symbols
24. Forms to Document all Tests and Inspections
• Battery inspections breaker inspections test results transformer tests, inspections, ground system tests long-term maintenance guidelines
