Crown ERAM, LLC

12/01/2022

Thank you to a recent customer who brought in this large 70E training donut. Hard to tell but that donut was about 31.4159 inches in circumference! (10 inches in diameter for you sales guys!)

01/04/2022

TOPSY The Elephant entered (and departed) the "WAR of the CURRENTS" between Edison and Westinghouse (Tesla) on this day Jan 4th in 1903. R.I.P.

Looking for a good geek movie: THE CURRENT WAR.

03/19/2021

We will call that good days work! Ship'em!

02/24/2021

Some nice old GE 150 Amp fuses (4,800 Volt). Drained the sand out of one pair. You can see the remains of the conductors sticking up from ends of the class cylinder.
https://crowneram.com

02/23/2021

Product recall on Fluke Clamp Meters 37X

Fluke is voluntarily recalling certain 373, 374, 375 and 376 Digital Clamp Meters that were manufactured between September 1, 2010 and October 31, 2012.

02/19/2021

TROUBLESHOOTING TIP: Some times it is very difficult to find an intermittent problem... sometimes you just have to look for the obvious. (I think the problem may be the motor cut off switch on this GE Magnablast breaker). Thanks Jason for the footage!

01/20/2021

“ SHIP IT! "

11/10/2020

ALWAYS stay at least 10 feet from power lines!

A father died after he and his son were electrocuted while painting a church in Washington, The Seattle Times reported.

The two men were using an aluminum ladder outside the Madrona Grace Presbyterian Church in Seattle, according to the Times. The father, 52, and the son, 27, were standing on the ground Saturday when a gust of wind blew the ladder they were moving into a nearby power line and electrocuted them, a news release from the Seattle Police Department said.

The father died at the scene while the son was taken to a hospital, according to the release. The pastor of the church plans to launch a fund for the men’s families, the Times reported.

Read more here:

A gust of wind blew their ladder onto a power line, Seattle police say.

08/05/2020

PRODUCT RECALL ON ARC FLASH GEAR:

"During European CE testing, we have identified a Pro-Wear™ Plus fabric that is not performing to stated specifications. The Westex, Style 301 Red fabric, was found to perform lower than their stated ATPV value. This issue was immediately escalated to Westex for root cause analysis and correction. We are working urgently on this issue to minimize impact to our valued customers."

Honeywell Salisbury™ is committed to providing best in class Personal Protective Products (PPE) that offer superior protection to the end user. Rigorous testing, quality processes and specification compliance are part of our everyday culture. We take safety seriously and make every effort to ensur...

07/15/2020

How about this for a ‘surprise' service call? “Do you work on Allis-Chalmers?” “Yes, we have worked on thousands of them! ”

I mean we work on Allis-Chalmers Circuit breakers

06/30/2020

As a follow up, here is a little video of doing the “Cryo Cleaning”. While this switchgear wasn’t real dirty, you can still see how well the Dry ice (solid form of carbon dioxide) does “blasting” the hardened dirt of these cabinets. Since Dry Ice “sublimates” at (-109 degrees Farenheight) (turns from Solid to Gas with out going thru the liquid stage) there is no “bead blast” to clean up. It blows away in the wind (and cools off our hard working tech doing this job).

05/28/2020

WHAT IS ALL THAT WHITE POWDER? During a recent inspection and cryogenic cleaning of a customers medium voltage system, this large pile of white powder was found. Anyone know what it is? HINT: This mainly occurs in MV systems.

It is Nitric Acid that is eating away at your insulators. Who put Nitric Acid there.... you did. When you have dirty insulators (barriers, sleeving, air, etc) and the dielectric between your conductors gets low, electricity will start to arc across that insulator. When that arc happens the intense heat and the jumping electrons combine with elements in our air. Our Air is about 78%Nitrogen & 19% Oxygen so that will cause the creation of Nitric Oxide. With moisture H2O (humidity, steam, etc), nitric oxide reacts with oxygen and to form nitrous acid (HNO2).

[High School Chemistry Equation -> 4 NO + O2 + 2 H2O → 4 HNO2.]

That nitric acid eats causes insulation decay which compounds the arcing problem. Eventually it will fail and a flash over will occur.

How to detect it: Visual inspection, Ultrasound inspection (while running with doors closed), electronic detectors, etc.
How to prevent it: Cleaning (Cryogenic Cleaning), environmental controls.