city of Pierz

One of three current transformers (CT) in the city of Pierz was damaged, possibly during a lightning storm several years ago. The crack seen above, caused the CT to register less electricity use than was used. The city noticed the error in January 2011, when numbers showed it was billing its customers for more electricity than Minnesota Power was charging the city for. Although the city contacted Minnesota Power in January 2011 and several times after that about the discrepancy, it wasn’t until May that Minnesota Power sent someone to do a field test who immediately saw from the ground the crack in the CT.

Minnesota Power says Pierz owes $62,000 more

Posted on June 15, 2012 at 10:11 am

Transformer damage results in faulty readings; rates may have to be increased By Terry Lehrke, News Editor terry.lehrke@mcrecord.com When a current transformer …