Saturday April 18 at 7:24am – The San Francisco Bay area experienced a voltage sag that affected customers throughout the region. Grid voltage sagged to 38% of normal for 4.98 cycles, about 1/10 of a second.
This Voltage Sag Incident Captured by Recipe Analytics
Subsequently, customers reported impact from this power quality event only on their sensitive loads and equipment. Root cause not yet determined. APT provides solutions to identify failures as they happen. Further, we notify the people who need to know faster and with better information – reducing or avoiding impact.
Preparing for Voltage Sags
Power Quality Meters and an Electrical Power Monitoring System (EPMS) allow facilities to see the unseen. Moreover, the ability to see the effects/reactions your facility during a PQ event allows your team control of the unseen. Incidents like this can have further impact upon your facilities production and impact the bottom line.
For instance, check out Major Storms Causing an Increase in U.S. Utility Power Interruptions By William Atkinson for more info on how to prepare.
A new report from the U.S. Energy Information Administration found in 2018 (the most recent data available), U.S. electric utility power interruptions totaled an average of 5.8 hours per customer. The EIA came to this figure as a result of using data from utilities that represent 94% of the nation’s 154 million electric customers reported to the EIA.
“Interruptions in electricity service vary in frequency and duration across the nearly 3,000 electric distribution systems in the United States,” said the report. “Power interruptions are caused by many factors, including weather, vegetation patterns, and utility practices.”
Don’t wait for these events to happen before preparing. For the latest Voltage Sag Updates, Subscribe to APT’s blog to be notified when power quality events happen.
Andy Taylor, APT Chief Executive Officer