Batteries, DC Systems – Traditional Loads and New Expectations

This course presents important considerations when using flooded cell and gel cell batteries and battery chargers. During this course, participants complete worksheets to size batteries for eight-hour and 24-hour discharge durations with constant, random and intermittent loads. Participants also complete worksheets to size battery chargers for eight-hour and 24-hour battery recharge durations. Considerations include float, equalize and discharge voltages; battery aging; charging cycle efficiency; continuous, random, momentary and intermittent loads; DC load characteristics; and battery and battery charger capabilities.

Participants gain an understanding of battery energy density, determine the impact of discharge cycle and ambient temperature on battery sizing, and learn to match battery chargers to battery applications.

Instructor

Anthony Sleva, PE

Mr. Sleva is director of engineering at Prescient Transmission Systems. His focus is to direct the development of new products and services that can be used to prevent wide area blackouts in the United States and across the globe. During ... read more

Who Should Attend

Project managers, engineers, supervisors, designers, technicians, analysts, contract managers, consultants, managers and others interested in or involved with DC systems.

Benefits and Learning Outcomes

• Understand battery energy density.
• Determine impact of discharge cycle and ambient temperature on battery sizing.
• Learn to match battery chargers to battery applications.

Course Outline/Topics

• DC system overview
• Battery voltage – float, equalize, normal and discharge
• Stationary batteries
• Battery chargers
• Battery loads – continuous, momentary and random
• Battery sizing
• Charger sizing
• System performance
• Fusing and short circuit considerations
• Ground detection, indication and alarms
• Special considerations – powering perimeter security cameras, entry/exit controls, etc.