[Dsg-rich] Power for air compressor in EEL rm 125 (Bertha Unit)

[Jason Willoughby]

5% puts us at 210V, which may vary an additional ±5V from the bertha. Looking at the specs for the compressor I will need a 250V fused disconnect with 70A type k5 fuses and an 80A GE THQ 3p breaker. I will also need a 4/3 SO cord that is approximately 20' in length for the connection. I will check to see if I have any of these items in our overstock, but if I do not, I will need to get them purchased. 



Jason Willoughby 
FM&L Electrical Engineer 
Thomas Jefferson National Accelerator Facility 
628 Hofstadter Road STE 1 
Newport News, VA 23606 
(757)-269-5372 


From: "Brian Eng" <beng at jlab.org> 
To: "Walt Akers" <akers at jlab.org> 
Cc: "dsg-rich" <dsg-rich at jlab.org>, "Jason Willoughby" <jasonw at jlab.org> 
Sent: Friday, May 12, 2017 10:08:15 AM 
Subject: Re: [Dsg-rich] Power for air compressor in EEL rm 125 (Bertha Unit) 

I sent the manual for the compressor to Walt and Jason already (it does say that it is suggested to stay within 5% of nominal and must not deviate more than 10%, so maybe it's okay?). 

However, Tyler is contacting the company to get more information regarding supplying 208V 60Hz instead of 200V 60Hz. 

> On May 11, 2017, at 1:20 PM, Walt Akers <akers at jlab.org> wrote: 
> 
> That's a step in the right direction. Jason, when would you like to go over 
> and take a look at this setup? 
> 
> Walt 
> 
> Brian Eng wrote: 
>> Mindy moved a Bertha from physics storage to EEL/125 this morning. 
>> 
>> It is next to the compressor since we weren't sure where its final location would be. 
>> 
>>> On May 8, 2017, at 4:19 PM, Walt Akers <akers at jlab.org> wrote: 
>>> 
>>> Hey George: 
>>> 
>>> Yes. I spoke to Jason Willoughby about this earlier today. 
>>> He's going to schedule a walk through for us to determine 
>>> where it is going to go and how it will be connected - 
>>> after that, we can implement it. 
>>> 
>>> Walt 
>>> 
>>> 
>>> George Jacobs wrote: 
>>>> Hi Walt, 
>>>> 
>>>> The RICH group is ready for the air compressor in EEL rm 125. This unit needs a Bertha unit for power. Since the Hall B Bertha is already in use, we need to borrow an additional one. Rolf mentioned we could use the one in the ESB. 
>>>> 
>>>> thanks 
>>>> George 
> 
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