UPS Rectifier DC Output Voltage

Notifications

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.

Invite a Co-worker

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.

Send Invite Cancel

Top Experts

User

Count

5060

196

112

108

Invite a Colleague

Found this content useful? Share it with a Colleague!

Invite a Colleague

Back to APC UPS Data Center & Enterprise Solutions Forum

439

Link copied. Please paste this link to share this article on your social media post.

Hello all,

Someone can help, I am connecting a new UPS Galaxy 5500 for the 1st time (This unit for the first time I mean), and during the commissioning paces I happened to measure the Rectifier output on the DC bus..gives 260VDC on open circuit (Battery Breaker OFF. The Battery bank is a 36 unit bank with12V batteries, nominal voltage 432VDC. I hesitated to connect the battery breaker QF1 on with such a disparity in voltage; is this normal?

Will the rectifier ramp up to the battery voltage? If not, will the battery higher voltage not damage the UPS/Rectifier?

Any ideas welcome and appreciated.

Thanks

Replies 0

To The Top!