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Electrical Undervoltage and Power Quality

Category: PQ Theory, Voltage Sag, Voltage, IEEE Standards

Electrical Undervoltage and PQElectrical Undervoltage and PQ

Understand the importance of monitoring electrical undervoltage and power quality in order to avoid equipment damage.


It’s best practice for loads sensitive to undervoltage to include safeguards such as contactors to disconnect the load when voltage is too low.


From a utility perspective, good voltage regulation and monitoring is essential to provide some headroom when system loading is heavier than expected.


Active voltage monitoring allows for immediate detection of undervoltage conditions due to faults or equipment failures, thus avoiding customer equipment damage.


This may be accomplished with devices such as the Boomerang working in a SCADA system, or with the Boomerang sending alerts to PMI’s cloud-based Canvass system, which can then issue text message or email alerts.


This White Paper Includes:

  • Causes of Undervoltages
  • Detecting Undervoltage

Download White Paper Here