<html><body><div style="font-family: arial,helvetica,sans-serif; font-size: 12pt; color: #000000"><div>Walt,</div><div><br data-mce-bogus="1"></div><div>The current setup is a 208 100A panel. This will not provide adequate power to run both compressors at the same time. The options to remedy this are as follows.<br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div>Option 1: If both need to run at the same time, upgrade the existing 30kVA transformer to a 75kVA unit, and replace the existing 100A panel with a 225A panel.<br data-mce-bogus="1"></div><div><br></div><div>Option 2: If both need to run at the same time, install new 30kVA transformer and new 100A panel (will need additional floor space)<br></div><div><br data-mce-bogus="1"></div><div>Option 3: If only 1 needs to run at a time, install a new DPDT switch by the compressors and utilize the existing 70A feed to run either compressor. This switch runs about $950.<br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div data-marker="__SIG_PRE__">Jason Willoughby<br>FM&L Electrical Engineer<br>Thomas Jefferson National Accelerator Facility<br>628 Hofstadter Road STE 1<br>Newport News, VA 23606<br>(757)-269-5372<br></div><div><br></div><hr id="zwchr" data-marker="__DIVIDER__"><div data-marker="__HEADERS__"><b>From: </b>"Walt Akers" <akers@jlab.org><br><b>To: </b>"Brian Eng" <beng@jlab.org>, "Jason Willoughby" <jasonw@jlab.org><br><b>Cc: </b>"Bob Miller" <rmiller@jlab.org>, "dsg-rich" <dsg-rich@jlab.org><br><b>Sent: </b>Wednesday, January 10, 2018 10:57:43 AM<br><b>Subject: </b>Re: RICH Compressor in EEL<br></div><div><br></div><div data-marker="__QUOTED_TEXT__">I'll let Jason weigh in on this, but, I believe that, if the Bertha<br>is disconnected, this is no longer a hot system and you should<br>be able to remove the cables - if you know how to do that work.<br><br>Walt<br><br>Brian Eng wrote:<br>> Hi Walt,<br>><br>> The current schedule calls for taking the air compressor that is currently located in EEL/125 to Hall B tomorrow morning.<br>><br>> I've already unplugged the Bertha from the wall, but I wasn't sure if we needed plant services to disconnect the Bertha from the compressor.<br>><br>> Thanks<br></div></div></body></html>