[labnetwork] Power monitoring

[Collins, Deon]

The electricians through the university should have a simple data logger they can attach to the incoming 3 phase power. It's would seem odd to me that it is occurring on Saturday if it's a consumption issue. I would lean towards the unit seeing less load, therefore the system is satisfied and shutting down for energy conservation.

Is this unit a simple recip tank mounted compressor, an older screw compressor or a new plc/vfd driven screw compressor?

Deon D. Collins


Director of Facilities
The Grainger College Of Engineering UIUC
Holonyak Micro & Nanotechnology Lab
208 N Wright St Rm. 1114 | MC-249
Urbana, IL 61801
217-300-7531 | deonc69 at illinois.edu<mailto:deonc69 at illinois.edu>


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From: labnetwork <labnetwork-bounces at mtl.mit.edu> On Behalf Of Johnson, Michael W
Sent: Monday, June 17, 2024 9:29 AM
To: Fab Network <labnetwork at mtl.mit.edu>
Subject: [labnetwork] Power monitoring

Hello folks,

We have a problem with a large compressor in a building that keeps shutting down at almost the same time on weekends. I feel like the problem may be some regular anomaly with the three phase power feeding it.

Can somebody recommend a simple product or method to record the power characteristics so we can go back and review the recorded data to see what, if anything, is going on? We have NMR's and other instruments that record when the compressed air is lost. It would be very helpful to then review recorded sine wave or other useful information to determine if we have a power problem or if the issue is actually something else.

It really feels like a regular voltage loss that only happens on Saturday afternoons when not much is going on in the building. This is causing a lot of problems.

Appreciate any help with this.

-Michael.
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