COURSE OVERVIEW:

In critical power environments, the battery charger and the associated DC system are the final line of defense, ensuring that protection and control circuits remain operational during total AC power failure. This course provides a detailed technical examination of the design, operation, and maintenance of industrial battery chargers and stationary battery banks. Participants will explore the chemistry of lead-acid and nickel-cadmium batteries, alongside the power electronics used in modern rectifier systems to maintain precise float and equalize voltages.

The scope of this training addresses the entire DC subsystem, including the charging logic, ground fault detection, and distribution panels. It focuses on the critical importance of reliable DC power in substations, power plants, and telecommunications hubs, where failure can lead to catastrophic damage if protection relays fail to trip. The curriculum provides a framework for regular testing, including capacity discharge testing and impedance measurements, to ensure that the battery system can deliver the required current during emergency events.

Coverage includes troubleshooting common charger faults such as ripple voltage issues and component failures and the safety protocols required for handling corrosive chemicals and high-energy DC circuits. Attendees will learn to interpret battery health trends and determine the optimal time for replacement. By emphasizing a proactive maintenance approach, the course ensures that technical personnel can guarantee the "always-on" status of the critical DC infrastructure that protects high-value electrical assets.

COURSE OBJECTIVES:

After completion of this course, the participants will be able to:

• Describe the chemical principles of VRLA, Flooded Lead Acid, and NiCd batteries.
• Analyze the operation of SCR and Switch-Mode battery chargers.
• Calibrate the float and equalize the voltage settings for different battery types.
• Perform accurate battery capacity (discharge) testing and interpretation.
• Utilize impedance and conductance testers to evaluate cell health.
• Troubleshoot DC ground faults and identify leakage paths.
• Manage the thermal requirements and ventilation of battery rooms.
• Interpret charger alarms and event logs for fault diagnosis.
• Execute safe battery handling and acid spill neutralization procedures.
• Monitor AC ripple voltage and its impact on battery longevity.
• Develop a comprehensive preventative maintenance schedule for DC systems.
• Evaluate the sizing of batteries for different duty cycles and load profiles.

TARGET AUDIENCE:

This course is intended for Electrical Technicians, Substation Engineers, UPS Specialists, and Facility Maintenance Personnel responsible for critical DC power infrastructure.

TRAINING COURSE METHODOLOGY:

A highly interactive combination of lectures, discussion sessions, and case studies will be employed to maximize the transfer of information, knowledge, and experience. The course will be intensive, practical, and highly interactive. The sessions will start by raising the most relevant questions and motivating everybody to find the right answers. The attendants will also be encouraged to raise more of their questions and to share in developing the right answers using their analysis and experience. There will also be some indoor experiential activities to enhance the learning experience. Course material will be provided in PowerPoint, with necessary animations, learning videos, and general discussions.

The course participants shall be evaluated before, during, and at the end of the course.

COURSE CERTIFICATE:

National Consultant Centre for Training LLC (NCC) will issue an Attendance Certificate to all participants completing a minimum of 80% of the total attendance time requirement.