Transmission Sag March 17, 2020 San Francisco Bay Area voltage sag at 4:01pm.

Winter weather on Saturday March 17 at 4:01 pm the San Francisco Bay area experienced a voltage sag that affected customers throughout the region. Grid voltage sagged to 80% of normal for 3 cycles, about 1/10 of a second. This incident was captured by Recipe Analytics

Customers reported impact from this power quality event only on their sensitive loads and equipment.  Root cause has not been determined.

APT provides solutions to identify failures like this as they happen and notify the people who need to know faster and with better information – reducing or avoiding impact.

A Power Quality Event (PQ Event) can occur when for many reasons.

Is your facility capable of knowing when this type of event has occurred?

Did this event impact your facility?

Being prepared with the addition of Power Quality Meters and an Electrical Power Monitoring System (EPMS) will allow your facility to see the unseen.

The ability to see the effects and reactions your facility has a Power Quality event will give your team control of the unseen.

Incidents like this can have impacts upon your facilities production and impact the bottom line.

With the installation of a few metering devices in your facility electrical distribution system you will never have to guess what the answer is to this question.

Power Quality Events occur more often than you would think. Just because the power was not a 100% Sag Voltage or loss of power does not mean your facility was not impacted.

Electrical metering has become a more economical in the last few years.

Electrical Power Monitoring Systems (EPMS) are an excellent way to monitor, report and notify facility teams in real time the status of any electrical system. If this information is useful, please subscribe to APT’s power quality blog to be notified when this happens in the future.