Important Announcement: Community Back to Full Functionality
Dear Members, we are thrilled to announce that our Community is back to full functionality and that posts publication is now enabled again! We appreciate your patience during the last weeks. Learn more about our Community Guidelines. Thank you, Schneider Electric Community Team.
AVR (boost/trim) differences between UPS models
APC UPS Data Center & Enterprise Solutions Forum
Schneider, APC support forum to share knowledge about installation and configuration for Data Center and Business Power UPSs, Accessories, Software, Services.
Send a co-worker an invite to the portal.Just enter their email address and we'll connect them to register. After joining, they will belong to the same company.
You have entered an invalid email address. Please re-enter the email address.
This co-worker has already been invited to the Exchange portal. Please invite another co-worker.
Please enter email address
Send InviteCancel
Invitation Sent
Your invitation was sent.Thanks for sharing Exchange with your co-worker.
Link copied. Please paste this link to share this article on your social media post.
Posted: 2023-06-0412:35 PM
AVR (boost/trim) differences between UPS models
Hi all,
We have various models of APC UPSes deployed at one of our sites and I'm seeing an interesting difference in the performance of the Automatic Voltage Regulation functionality between different line-interactive UPS models.
Last night - due to an increase in voltage from the utility, we had multiple UPSes kick into AVR mode (Event message: "UPS: Compensating for a high input voltage.").
While in this state:
On a Smart-UPS 750, the output voltage dropped to ~ 110 - 112.5V
On a Smart-UPS 3000 X, the output voltage stayed at 119.9 - 120V the whole time
Looking at the event logs on the UPSes, it doesn't look like either of them kicked over to battery so I'm assuming the AVR feature is trimming the voltage.
Question: both of these UPSes list AVR as a feature but the performance is significantly different. Is there a way to tell from spec sheets, etc. what level of AVR exists on any given UPS model?