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Visualizing Power Quality Events with CBEMA/ITIC Curves for Enhanced Equipment Protection
This white paper explains how to plot voltage events on CBEMA and ITIC curves using data from PMI recorders and ProVision software. It details both automated and manual methods for graphing power quality events, highlights the importance of accurate voltage and duration data, and demonstrates how RMS Capture graphs simplify the process. Real-world and test examples illustrate the practical application of these techniques for analyzing and mitigating equipment vulnerability to voltage disturbances.
Key topics include:
- What Are CBEMA and ITIC Curves?
- ProVision Example
- Graphing the CBEMA/ITIC Curve by Hand
- Using RMS Capture Graphs
- Handling Extended Duration Events
Why utilities should care:
Understanding and plotting power quality events on CBEMA/ITIC curves enables more precise identification of voltage disturbances that may threaten sensitive equipment, supporting targeted mitigation strategies and improved reliability for critical operations.
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