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Understanding, Detecting, and Analyzing Voltage Sags for Improved Power Quality
This white paper explores voltage sags, short-duration reductions in supplied voltage that can disrupt sensitive equipment, especially in industrial settings. It explains the IEEE 1668 standard for sag definition and classification, demonstrates how to capture and analyze sags using power quality recorders and software, and highlights best practices for effective detection and mitigation.
Key topics include:
- The IEEE 1668 Standard
- What Are Sags?
- Sag Classifications
- Who Suffers Most from Voltage Sag?
- Configuring a Recorder to Capture Voltage Sags
- Analyzing a Waveform Capture in PQ Canvass
Why utilities should care:
Proactive voltage sag detection and analysis minimizes equipment downtime, reduces financial losses, and enhances power quality. Leveraging standards-based classification and advanced monitoring tools enables timely mitigation of disruptive events and operational risks.
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