Packet Power Blog

When good enough can be great: Current-only vs Full Power monitoring

Posted on Tuesday, February 12, 2019 by Packet Power Team

You've decided to monitor energy use in your facility. The good news is that you've got a number of options to do this. The not-so-good news is that the options can sometimes seem overwhelming. One such choice is to monitor current only or full power.  So when is current alone good enough?

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Topics: Packet Power, power monitoring, branch circuit monitoring, Power basics, selective circuit monitoring

Split core CTs and why size matters

Posted on Tuesday, January 8, 2019 by Packet Power Team

Current transducers (CTs) are a critical component of power monitoring. They come in a variety of formats, sizes, current ratings and accuracy levels.  The aspect we would like to focus on here is size, specifically inside diameter.  

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Topics: Packet Power, power monitoring, branch circuit monitoring, Power basics, selective circuit monitoring, Current Transducers (CTs)

Using Rogowski Coils

Posted on Tuesday, August 29, 2017 by Alan Katz

Conventional split-core CTs may not always be the best solution when installing current transducers on existing cable bundles. The CT may not fit around the conductor or in the required space. An easy alternative is to use a Rogowski coil.

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Topics: Power basics

Shower or bath?  IP44 vs IP67

Posted on Tuesday, June 14, 2016 by Alan Katz

Data center power connectors have several attributes. Maximum amperage and voltage are obvious, as is whether the conductor supports 3, 4 or 5 wires. You will also often see an "IP" designation, typically IP44 or IP67. Read on if you've ever wondered what that means -- or why IP67 can cost 10 times more than IP44.

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Topics: Power basics

Split core, solid core, and why you should care

Posted on Wednesday, May 18, 2016 by Alan Katz
At the heart of every power monitoring device is the current transducer (CT). If you have ever wondered why they are used or how they work, here's a quick review of AC CT basics.
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Topics: power monitoring, Power basics

Reader's choice:  Top 5 blog posts

Posted on Thursday, March 10, 2016 by Packet Power Team

Who can resist "top 5" lists? We can't. So we're sharing Packet Power's five most popular blog posts.

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Topics: wireless monitoring, DC, Power basics

Three-phase power or the magic of the missing Neutral

Posted on Wednesday, February 3, 2016 by Paul Bieganski

Few things seem to cause as much confusion as three-phase power, especially in a Delta configuration.  Plumbing and car enthusiasts: rejoice! In this post we'll present a plumber's (and car mechanic's) version of a three phase power system.  

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Topics: data center operations, Know your power, Data center power, Power basics, 3-phase power

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