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Unlocking Detailed Power Disturbance Insights with PMI Event Capture
This white paper explores the Event Capture function in PMI power quality analyzers, detailing its role in recording cycle-by-cycle power disturbances such as sags and swells. It compares Event Capture to waveform capture, outlines optimal configuration practices, and demonstrates how the Event Change Table Report provides granular data for in-depth analysis of power events. The paper also discusses memory management, event grouping, and practical examples to guide effective deployment.
Key topics include:
- Introduction to Event Capture Function
- Event Capture vs. Waveform Capture
- Event Change Table Report: Data and Interpretation
- Configuring Event Capture: Nominal Voltage, Threshold, and Minimum Event Time
- Memory Management and Channel Handling
- Super-Events and Grouping Logic
- Practical Examples and Use Cases
Why utilities should care:
Event Capture enables precise identification and analysis of short-duration voltage sags and swells, using minimal memory while providing cycle-level detail. This supports root cause analysis, efficient troubleshooting, and optimized resource allocation for power quality management.
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