Summary
Developed via a cross-departmental initiative to mitigate risks introduced by DC battery grounds, the Advanced Battery Ground Monitoring System (ABGMS) aims to enhance the detection and management of DC battery grounds. Traditionally, the detection of battery grounds at ComEd has been a manual process, requiring field personnel to check voltages at the battery charger and confirm using a ComEd proprietary calculation, the Kugler
Read more Read lessMethod, to determine the DC ohmic resistance to ground. This is a time-consuming process and lacks real-time notification capabilities.
The ABGMS automates this process by applying the Kugler Method every hour using a Schweitzer SEL-451 relay and SEL-3350 RTU, providing immediate local and remote alarms through SCADA when an issue is detected. The ABGMS also stores historical ohmic values in a centralized database, enabling trend analysis and correlation with external factors like weather patterns. Lab tests have shown that the ABGMS is as accurate as traditional methods but offers more reliability by mitigating the opportunity for human error.
The first pilot installation was executed in June 2024 at a ComEd substation, where it will be compared against a competing third-party system. Field personnel will provide regular updates and manual Kugler readings to ensure the ABGMS's accuracy and reliability. This implementation represents a significant step forward in the detection, analysis, and management of battery grounds, potentially reducing the time required for troubleshooting and improving system reliability.
Additional informations
| Publication type | Session Materials |
|---|---|
| Reference | A3_12640_2026 |
| Publication year | |
| Publisher | CIGRE |
| Country | Serbia |
| Study committees | |
| File size | 765 KB |
| Price for non member | 30 € |
| Price for member | 30 € |
Authors
MARTINO Donato - ComEd U.S.A.; JIMENEZ Ramon - ComEd U.S.A.; SAUERS Travis - ComEd U.S.A.; SCHILLER Ryan - ComEd U.S.A.
Keywords
Floating DC Battery Systems, DC Battery Grounds, Monitoring, Critical Ground Resistance Values
