Voltage Sags: Understanding and Mitigating Their Impact
Voltage sags represent one of the most prevalent power quality issues affecting manufacturing processes and equipment reliability. Are you noticing heightened sensitivity to voltage sags in your industrial operations? In the discussion below, we delve into the concept of voltage sags, their causes, and proactive measures to prevent their occurrence.
What Are Voltage Sags? Voltage sags, a common power quality phenomenon, can significantly disrupt processes and equipment operations. They manifest as brief drops in voltage along the distribution line, triggered by sudden increases in electrical loads or fluctuations in grid demand. These fluctuations, ranging from minor voltage variations to severe disruptions, can adversely affect equipment performance and incur substantial downtime and maintenance costs.
Causes of Voltage Sags Voltage sags often stem from factors such as short circuits, motor startups, or spikes in electrical grid demand. They may originate within the facility or result from events occurring along the transmission lines. Despite their varied causes, voltage sags demand proactive measures to safeguard sensitive equipment from their adverse effects.
Addressing Voltage Sags: Actionable Steps To mitigate the impact of voltage sags, it's crucial to identify equipment susceptible to voltage variations and deploy effective corrective measures. Implementing an Active Voltage Correction (AVC) system can help stabilize voltage levels amidst fluctuations and sag activity. By isolating sensitive equipment and strategically installing correction devices, such as DVR devices, you can ensure consistent voltage supply and minimize equipment wear.
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Product Manager | Application Specialist for Partial Discharge at OMICRON electronics
1moYou can find these pattern and more information in the CIGRE Technical Brochure 676 „Partial Discharges in Transformer“ from 2017.