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Uninterruptible Power Supplies

Troubleshooting and Maintaining Uninterruptible Power Supply Systems
Scope
This course is designed for the electrician, technician, or engineer who needs a basic understanding of the application, installation, operation and troubleshooting of UPS systems and storage batteries. The theory of operation and the routine testing, troubleshooting and maintenance of typical single phase and three phase uninterruptible power systems are thoroughly covered, as are the safety precautions to be observed when working with these systems.

 

 
Learning Outcomes

Upon completion of this course, the participant should be able to:

  • Understand the Basic Building Blocks Common to all UPS Systems;

  • Have a knowledge of the Construction and Operation of the Major Types of Industrial UPS Systems;

  • Understand how to Maintain and Performance Test Lead-Acid and Ni-cad Battery Systems;

  • Identify the Hazards and Safe Work Practices Related to UPS Systems and Batteries

Outline

  • Introduction
    • Pretest
    • Schedule
  • Why have a UPS?
    • Types and Duration of Power System Disturbances
      • Sags
      • Surges & Spikes
      • Outages
      • Phase Relationships
    • The ITIC (CBEMA) Curve
  • The Three General Types of UPSs
    • Kinetic (Motor Generator Sets)
    • Flywheel
    • Static
  • The Three Building Blocks of a UPS
    • Rectifier
    • Batteries
    • Inverter
  • The Three Types of Static UPSs
    • The Traditional UPS
    • The Static UPS
    • The Static UPS with Bypass
  • Review of Passive Electronic Components
    • Volts, Ohms, and Amps in DC and AC Circuits
    • Resistors
    • Capacitors
      • Formed Caps
      • Failure Mode of Electrolytic Capacitors
    • Inductors
      • Coils and Chokes
      • Single Phase Transformers
      • Three Phase Transformers
        • Wye
        • Delta
    • RLC Circuits in Series and Parallel
      • Tuned Circuits
      • Harmonics
      • Ferro Resonance
  • Review or Introduction to Active Components
    • Diodes
      • Half-wave Rectification
      • Full-wave Rectification
      • Polyphase (3F ) Rectification
      • Wye/Delta Rectification
      • Troubleshooting Diodes
      • Hands-on Laboratory Activities
    • Transistors
      • Applications of Transistors
      • Troubleshooting Transistors
      • Hands-on Laboratory Activities
    • Thyristors
      • SCRs
        • Applications
        • Troubleshooting
        • Hands-on Laboratory Activities
      • TRIACs
        • Applications
        • Troubleshooting
        • Hands-on Laboratory Activities
      • IGBTs
        • Applications
        • Troubleshooting
      • Triggering Circuits
    • How Batteries Work
      • Introductio
      • Primary Batteries
      • Secondary Batteries
    • Lead-Acid
      • The Chemistry
      • Battery Types
      • Capacity Factors
      • S-Curves
      • Battery Safety and Maintenance
      • Float and Equalize Voltages
      • Load Testing
    • Nickel Cadmium
      • The Chemistry
      • Battery Types
      • Capacity Factors
      • Battery Safety and Maintenance
      • Float and Equalize Voltages
      • Load Testing
  • UPS Topologies
    • Single Phase
      • Rectifiers
      • Inverters
    • Three Phase
      • Rectifiers
      • Inverters
  • Troubleshooting and Maintenance of UPS Systems
    • Manufacturer’s Recommended Preventive Maintenance
      • Installation
      • Quarterly Checklists
      • Annual Checklists
    • Tools and Equipment
    • Electrical Safety
  • Course Conclusion
    • Post Test
    • Completion of Course Evaluation


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