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Course Code
EPET-010
Maintenance/Troubleshooting Of UPS Systems and Battery Power Supplies
- Where a company regards electrical power as critical then there will be a need for a continuous or back up power system. The installation of a UPS will provide the necessary continuity. There are however problems with these installations when there is a need for maintenance especially the use of by-pass. Power Quality compatibility problems may cause failure, which was the reason for the original UPS installation.
Learning Outcomes
- 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 Perform Test Lead-Acid and Ni-cad Battery Systems
- Be able to identify the Hazards and Safe Work Practices Related to UPS Systems and its Batteries
- Have learned basic troubleshooting techniques for UPS systems
- Be able to implement preventive maintenance for UPS battery and battery charger, and annual testing
Course Contents
- Rectifier
- Inverter
- Static switch
- Manual bypass switch
- What constitutes power quality?
- Sags and swells
- Voltage fluctuations and mitigation
- Interruptions
- Surges - their causes, effects and remedies
- Noise and harmonics
- UPS charging limitations
- AC Ripple current
- Equalize charge
- UPS efficiency and power factor
- Battery sizing calculation
- Adjusted battery load calculation
- Voltage windows and number of cells
- Cell selection
- Types of batteries: primary and secondary
- General features of lead-acid and nickel -cadmium batteries
- Comparison of the chemistry involved
- Lead acid batteries - subtypes, construction and relative features
- Manufacture of batteries
- Float charging and boost (equalizing) charging
- Facts about charging of lead acid batteries
- Internal loss and the factors that affect it
- Current during charging cycle - variants
- Overcharging and undercharging
- Sulphation and hydration
- The discharge processes
- Specifics about charging of UPS batteries
- Nickel cadmium batteries
- Charging strategy for nickel cadmium batteries
- Need for upkeep and monitoring
- Causes of failures and failure modes
- Periodic inspection and residual life assessment
- Test equipment and safety of personnel
- Predictive monitoring by conductance testing
- Disposal and recycling
- Comprehensive maintenance for your VRLA or flooded batteries
- Measure of cell voltage levels
- Visual inspection for leaks or bad cells
- Spot check for connection torques
- Load testing
- Inspection of battery environment
- Detailed report of battery test and inspection results and recommendations for corrective actions
- Preventive maintenance and recommendation of battery chargers
- Critically apply the manufacturer's recommendations
- Basic use of test equipment and tools
- Rectifier and battery charger troubleshooting
Ups System Overview & Power Quality Basics
Battery Chargers
Basics of Batteries
Charging and Discharging of Batteries
Battery Upkeep, Failures and Disposal
Battery and Battery Charger Preventative Maintenance
Ups System Troubleshooting and Maintenance
Our Methodology
- Make coaching and monitoring innovative and using modern
- Media training also using on the go training by using interactive means and focusing on
- The exercises, practical applications and real situations study
- Live delivery method, instructor-led training
- Experienced consultant, trainers, and professional
- Qualified trainer with high-level experience
Attendance Reports
- Send daily attendance reports to training departments
- Send full attendance report to training dep. by the end of the course
- Attend 100 % from the course days also provide daily
- Issue attendance certificate for participant who attend minimum 80% from the course duration
Pre/Post Reports
- Pre- assessment before starting training
- Post assessment after finish training
- Full report for the deferent between Pre-& Post assessment
Who Should Attend
- Maintenance Technicians
- Maintenance Supervisors
- Plant Engineers
- Operators
