Data on US Mains Power & Expensive Options

[EERecordist]

In the world of utilities and engineers we measure and ensure power quality. It is measured by power quality recorders like a Dranetz. Data center power engineers buy or rent these.

How good is utility power? Really good, here is the science:

Summary of U.S. Distribution System Power Quality Levels

Published by D. D. Sabin, Email: [email protected]. L. Brooks, Email: [email protected] Electrotek Concepts, Inc., 409 North Cedar Bluff Road, Suite 500, Knoxville, Tennessee 37923-3605, …

powerquality.blog

If you are a lab designing power supplies, one piece of test equipment you might have is an adjustable AC power source. Here is one that can generate 2-4kW AC and also run your DC power bricks. It starts at $6000.

ASR-3000 Series Programmable AC/DC Power Source

The ASR-3000 series is an AC+DC power source, featuring high-speed DC voltage rising and falling time (≦100us).There are three models of the series: ASR-3200(2kVA), ASR-3300(3kVA) and ASR-3400 (4kVA).

www.gwinstek.com

They also have an APS series. There would be several makers of similar equipment. You could also if you wanted to spend even more money put a Topaz transformer in front of it. Sometimes you can find a Topaz used when tech buildings decommission their electrical systems. They are very heavy.

 

[sam_adams]

In the world of utilities and engineers we measure and ensure power quality. It is measured by power quality recorders like a Dranetz. Data center power engineers buy or rent these.

How good is utility power? Really good, here is the science:

Summary of U.S. Distribution System Power Quality Levels

Published by D. D. Sabin, Email: [email protected]. L. Brooks, Email: [email protected] Electrotek Concepts, Inc., 409 North Cedar Bluff Road, Suite 500, Knoxville, Tennessee 37923-3605, …

powerquality.blog

If you are a lab designing power supplies, one piece of test equipment you might have is an adjustable AC power source. Here is one that can generate 2-4kW AC and also run your DC power bricks. It starts at $6000.

ASR-3000 Series Programmable AC/DC Power Source

The ASR-3000 series is an AC+DC power source, featuring high-speed DC voltage rising and falling time (≦100us).There are three models of the series: ASR-3200(2kVA), ASR-3300(3kVA) and ASR-3400 (4kVA).

www.gwinstek.com

They also have an APS series. There would be several makers of similar equipment. You could also if you wanted to spend even more money put a Topaz transformer in front of it. Sometimes you can find a Topaz used when tech buildings decommission their electrical systems. They are very heavy.

@amirm needs one of these. It's even ASR branded!

 

[kemmler3D]

How good is utility power? Really good, here is the science:

Seems like great data but it's 20 years old by now. Do we have any reason to think power quality might have changed over time? I also noticed that this data was collected from utility equipment and not homes, but I assume the quality at the two points must be related.

To be honest the main thing I took away in that report was that THD of the power waveform is only 1% on average... even some audio equipment is worth than that.

 

[Blumlein 88]

Old simple electric wall clocks were good enough, but not always super accurate. They simply worked on 60 hz. One of those odd things in this century they do such a good job of keeping an average of exactly 60 hz, such old clocks are now very accurate.