Welcome to the new Schneider Electric Community

It's your place to connect with experts and peers, get continuous support, and share knowledge.

  • Explore the new navigation for even easier access to your community.
  • Bookmark and use our new, easy-to-remember address (community.se.com).
  • Get ready for more content and an improved experience.

Contact SchneiderCommunity.Support@se.com if you have any questions.

Close
Invite a Co-worker
Send a co-worker an invite to the Exchange portal.Just enter their email address and we’ll connect them to register. After joining, they will belong to the same company.
Send Invite Cancel
84464members
353671posts

APC Smart-UPS RT 8000VA 208V losing ground when transfering to battery

APC UPS Data Center & Enterprise Solutions Forum

Schneider Electric support forum for our Data Center and Business Power UPS, UPS Accessories, Software, Services, and associated commercial products designed to share knowledge, installation, and configuration.

Solved
r76et_apc
Cadet
0 Likes
1
120

APC Smart-UPS RT 8000VA 208V losing ground when transfering to battery

This was originally posted on APC forums on 1/3/2015


Can anyone help.

i am using a APC Smart-UPS RT 8000VA 208V. when online it has no problems powering the utilities. when switch to battery the ground becomes live and we lose the ground therefore the equipment cannot be powered. please advise


Accepted Solutions
BillP
Administrator Administrator
Administrator
0 Likes
0
120

Re: APC Smart-UPS RT 8000VA 208V losing ground when transfering to battery

This reply was originally posted by Angela on APC forums on 1/5/2015


think what you're referring to is the "phantom" voltage mentioned here?

http://www.schneider-electric.us/support/index?page=content&country=ITB〈=en&locale=en_US&id=FA156549

Does that sound accurate? What type of equipment is connected to this UPS and how did you verify the voltage on the ground is causing the specific issue (versus something else that happens when the UPS goes to battery)? Is the equipment directly connected to the rear of the UPS or is there anything between the UPS and the equipment (step down transformer, PDU, etc)?

See Answer In Context

1 Reply 1
BillP
Administrator Administrator
Administrator
0 Likes
0
121

Re: APC Smart-UPS RT 8000VA 208V losing ground when transfering to battery

This reply was originally posted by Angela on APC forums on 1/5/2015


think what you're referring to is the "phantom" voltage mentioned here?

http://www.schneider-electric.us/support/index?page=content&country=ITB〈=en&locale=en_US&id=FA156549

Does that sound accurate? What type of equipment is connected to this UPS and how did you verify the voltage on the ground is causing the specific issue (versus something else that happens when the UPS goes to battery)? Is the equipment directly connected to the rear of the UPS or is there anything between the UPS and the equipment (step down transformer, PDU, etc)?