UPS System & Battery Chargers: Maintenance & Troubleshooting
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COURSE DATES AND LOCATIONS
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INTRODUCTION
he power supply systems must provide maximum reliability and power quality
while its costs are to be minimized. These requirements present a major design, operation,
and maintenance challenges due to the dilemma between supply improvements and the
associated investments. Therefore, the design, operation, and maintenance of power supply
systems are usually a compromise between the reliability and quality of supply from one
side and the required investments from the other side. The main impacts of power
interruptions and low power quality are the costs and safety associated with them.
Therefore, electrical loads are classified according to the impacts of interrupting their
power supply; loads are classified to non-essential, essential, and critical. The impact of
power interruptions on non-essential loads are minor while interruptions have a significant
impact on the essential loads, especially if the interruption duration is above a specific
threshold value. Critical loads are a class of the loads that should not be interrupted under
any circumstances. The hazards, and costs associated with interrupting critical loads are
usually intolerable even if the interruption duration is very small
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COURSE OBJECTIVES
By the end of the course, you‘ll be able to:
- Understanding and assessment of power supply reliability and power quality.
- Defining load classes and assessment of the impacts of poor supply reliability
- and quality.
- Understanding and analysis of the sources, and effects of various power quality (PQ) disturbances.
- Analysis and design of various power distribution system configurations and their relation to power supply reliability and power quality.
- Configurations of practical UPS systems as well as their characteristics, and operation.
- Selection criteria of UPS systems for providing adequate power supply reliability and quality considering various load classes.
- Install and operate UPS systems.
- Maintenance requirements and procedures as well as troubleshooting UPS systems.
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COURSE AUDIENCE
This course is made for
- Electrical engineers
- Technicians,
- Maintenance professionals who would like to expand their knowledge of UPS system.
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COURSE OUTLINE
Day One
- Introduction
- Power supply Reliability
- Classification of Power Quality Disturbances
- Standby power supply alternatives
- Duplicate Feeder from the Grid
- Engine generating sets (EGS)
- Battery storage
- Uninterruptible power supply (UPS) systems
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Determine the general need for UPSs.
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Determine the purpose of the UPS.
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Determine the power requirements.
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Select the Type of UPS.
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Determine if the safety of the selected UPS is acceptable.
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Determine if the availability of the selected UPS is acceptable.
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Determine if the selected UPS is maintainable.
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Determine if the selected UPS is affordable.
Day Two
- Main PE energy conversion process
- Power electronic switches and their specifications
- Power electronics as interfaces – applications
- The use of heat sinks
- Future trends of PE
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Determining static UPS system rating.
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Battery sizing
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Computation sheets.
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Static UPS system selection criteria
Day Three
- Separating the Essential and Nonessential Loads
- Special equipment to support continuous operation
- Defining failure in a 7 × 24 facility
- Reliability and availability as tools in evaluation of critical facilities
- Critical distribution system configurations
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Determining rotary UPS system rating.
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Motor and generator ratings.
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Flywheel sizing.
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Rotary UPS system selection criteria
Day Four
- Reliability and availability of critical distribution system configurations
Typical configurations of UPS systems for power generating station loads - Typical configurations of UPS systems for power generating station loads
- Charging Methods
- Service Conditions
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Construction features of rotary systems.
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Installation requirements for rotary systems.
Day Five
- Equipment Rating
- Output Ripple
- Output Regulation
- Fusing
- Surge Voltage Withstand Capability
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Power distribution equipment.
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Grounding.
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Computer power centers.
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Shielding.
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Radio frequency interference (RFI).
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Noise and noise reduction methods
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Maintenance costs.
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Maintenance access.
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Preventive maintenance.
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Maintenance procedures.
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Maintaining flooded lead-acid cells.
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Maintenance considerations.
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Maintaining valve-regulated lead-acid cells.
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Ni-cad cells.
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Safety.
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