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IEEE VTS Philadelphia Chapter Meeting (1 PDH)
IEEE VTS Philadelphia Chapter Meeting
Date: Monday, April 29, 2024
Time: 12:00 PM to 01:00 PM
Location: Virtual
Electrical Substation Battery Systems
This presentation discusses technical aspects of 125 V dc battery systems used in electrical substations. Utility and traction power substations typically use 125 V dc battery systems to provide uninterrupted backup power to protective relay systems, switchgear controls, and switchyard equipment. Batteries are selected based on owners’ preferences and applications. They are sized based on the anticipated dc load profile upon a loss of power. Load profiles often include first minute equipment operation, an 8-hour loss of power, and expected switching operations to restore power. IEEE 485 is a recommended practice for sizing lead-acid batteries for stationary applications. Mr. John Kim will give a presentation on the history of batteries used in substations and today’s latest battery technologies.
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