Cut the Copper
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Joe Guentert is owner and sole proprietor of Power Distribution Systems, located in Charlotte, N.C. He is a 1969 graduate of the University of Notre Dame (dual majors of Electrical Engineering and Business Management). He had an 18-year career with General Electric Co. with various assignments around the U.S., and worked five years as a vice president of IEM Inc., Fremont, Calif.
Still more on ‘cutting the copper’
September 19, 2012
One evening, an easy method to scale back on the amount of copper we were installing dawned upon us—a concept that was certainly not revolutionary, but simply logical. » more
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September 19, 2012
One evening, an easy method to scale back on the amount of copper we were installing dawned upon us—a concept that was certainly not revolutionary, but simply logical. » more
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Protection, arc flash mitigation using internal VFIs in liquid substation transformers
August 29, 2012
From our previous discussions about the Cooper HDC liquid transformer with internal, under-liquid VFI’s, expanding the use of the VFI takes this concept a step further, and makes a great way to mitigate arc flash hazards on the secondary. » more
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August 29, 2012
From our previous discussions about the Cooper HDC liquid transformer with internal, under-liquid VFI’s, expanding the use of the VFI takes this concept a step further, and makes a great way to mitigate arc flash hazards on the secondary. » more
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Efficiencies, losses of liquid versus dry-type transformers
August 21, 2012
There are important tradeoffs to be made when moving transformers from outdoor locations to inside a facility. » more
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August 21, 2012
There are important tradeoffs to be made when moving transformers from outdoor locations to inside a facility. » more
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The 'HDC' transformer: A liquid-filled transformer designed specifically for application within large data centers
August 15, 2012
Let me to introduce to you a new liquid substation transformer that I believe solves all of the problems we've been discussing for so many weeks. » more
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August 15, 2012
Let me to introduce to you a new liquid substation transformer that I believe solves all of the problems we've been discussing for so many weeks. » more
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The Summer of 2012--A most unusual summer, too much “heat”
August 01, 2012
I’d like to pause for a bit this week to discuss some of the very unusual events of this very unusual summer for the data center industry, and also to discuss, of all things, the WEATHER. » more
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August 01, 2012
I’d like to pause for a bit this week to discuss some of the very unusual events of this very unusual summer for the data center industry, and also to discuss, of all things, the WEATHER. » more
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Responses to some questions, more on snubbers
July 25, 2012
Over the course of this series of discussions, I have received a number of questions and comments from engineering firms by email. » more
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July 25, 2012
Over the course of this series of discussions, I have received a number of questions and comments from engineering firms by email. » more
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Snubber components inside transformer enclosures
July 18, 2012
Placing snubber components inside transformer enclosures creates a dilemma for dry-type transformer manufacturers. » more
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July 18, 2012
Placing snubber components inside transformer enclosures creates a dilemma for dry-type transformer manufacturers. » more
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“Snubber” Networks - Are they effective?
July 12, 2012
Installing RC snubbers connected directly to the transformer primary windings is a common recommendation, but can snubbers really produce the desired result? » more
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July 12, 2012
Installing RC snubbers connected directly to the transformer primary windings is a common recommendation, but can snubbers really produce the desired result? » more
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A game-changing transformer dielectric fluid
June 27, 2012
The fluid is nonhazardous, 100% biodegradable, and made from natural esters of edible seeds and soybean oil—and has all of the great characteristics of Askarels, with none of the drawbacks. » more
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June 27, 2012
The fluid is nonhazardous, 100% biodegradable, and made from natural esters of edible seeds and soybean oil—and has all of the great characteristics of Askarels, with none of the drawbacks. » more
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Let’s discuss the copper
June 20, 2012
Data center owners are opting for even larger servers, adding even more copper. » more
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June 20, 2012
Data center owners are opting for even larger servers, adding even more copper. » more
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The early 2000s: The amazing boom of data center construction
June 13, 2012
Data center engineers have split into two camps. Which camp are you in? » more
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June 13, 2012
Data center engineers have split into two camps. Which camp are you in? » more
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A quick summary and review of 10 previous blogs
June 06, 2012
Let’s take a look at what we’ve already discovered, and review the most important aspects of this “Cut the Copper” series. » more
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June 06, 2012
Let’s take a look at what we’ve already discovered, and review the most important aspects of this “Cut the Copper” series. » more
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How is transient voltage related?
May 30, 2012
While no single factor would positively assure longevity for a transformer, the combination of several things seems to be very effective. » more
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May 30, 2012
While no single factor would positively assure longevity for a transformer, the combination of several things seems to be very effective. » more
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Liquid transformers--the right stuff
May 23, 2012
In this installment, Guentert gives more reasons for the differences in reliability between liquid transformers and dry-types. » more
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May 23, 2012
In this installment, Guentert gives more reasons for the differences in reliability between liquid transformers and dry-types. » more
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Do primary windings of liquid-filled transformers fail?
May 17, 2012
The short answer is no, primary windings of liquid-filled transformers don't fail. Here's why. » more
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May 17, 2012
The short answer is no, primary windings of liquid-filled transformers don't fail. Here's why. » more
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Dry-type transformer failures versus liquid transformer failures
May 09, 2012
In this "Cut the Copper" installment, Guentert explains how, when properly installed, liquid-filled transformers in data center power systems are more reliable than air-cooled dry-type transformers. » more
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May 09, 2012
In this "Cut the Copper" installment, Guentert explains how, when properly installed, liquid-filled transformers in data center power systems are more reliable than air-cooled dry-type transformers. » more
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Vacuum Circuit Breakers Become Prevalent
May 02, 2012
This "Cut the Copper" blog examines how the medium-voltage (MV) vacuum circuit breaker came into surface and its benefits over air-magnetic breakers. » more
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May 02, 2012
This "Cut the Copper" blog examines how the medium-voltage (MV) vacuum circuit breaker came into surface and its benefits over air-magnetic breakers. » more
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The New Age of Ventilated Dry-Type Transformers
April 27, 2012
In this "Cut the Copper" blog, manufacturers use air as a transformer coolant after their attempts to replace Askarel fluids met with little to no success. » more
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April 27, 2012
In this "Cut the Copper" blog, manufacturers use air as a transformer coolant after their attempts to replace Askarel fluids met with little to no success. » more
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The U.S. Environmental Protection Agency Arrives
April 18, 2012
Here's how the term “PCB” achieved worldwide notoriety almost overnight. » more
( 2 Comments )
April 18, 2012
Here's how the term “PCB” achieved worldwide notoriety almost overnight. » more
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The 'loadcenter' unit substation concept and World War II
April 10, 2012
In this "Cut the Copper" installment, we learn about how the shortage of copper forced plant electrical engineers and consulting engineers to become more creative in their designs of electrical power systems for large industrial plants. » more
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April 10, 2012
In this "Cut the Copper" installment, we learn about how the shortage of copper forced plant electrical engineers and consulting engineers to become more creative in their designs of electrical power systems for large industrial plants. » more
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Trends In Major Power Distribution In Large Data Centers, the Rebirth of the 'Loadcenter' Unit Substation Concept
April 04, 2012
This series of "Cut the Copper" blogs is in direct response to questions I’ve received from many young engineers on the staffs of various data center owners and their consulting engineering firms I’ve recently met. » more
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April 04, 2012
This series of "Cut the Copper" blogs is in direct response to questions I’ve received from many young engineers on the staffs of various data center owners and their consulting engineering firms I’ve recently met. » more
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The beginning of a trend
March 20, 2012
Welcome to “Cut the Copper.” In this blog, we’ll discuss the topic of power distribution in data centers. For now, let’s just get acquainted. » more
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March 20, 2012
Welcome to “Cut the Copper.” In this blog, we’ll discuss the topic of power distribution in data centers. For now, let’s just get acquainted. » more
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| Helping Joe on these blogs posts is Brian Steinbrecher, an electrical engineer focused on medium-voltage power distribution systems. His 30 year career includes work with an end-user (IOU), a manufacturer of power systems equipment, and as a system designer/consultant. Brian has a wide breadth of experience within the utility segment from systems design to equipment specifications and from system studies to construction and start-up. He has written many technical documents, papers, and reports and holds more than a dozen active patents. A good portion of Brian’s career was with Cooper Power Systems where he performed engineering and marketing work in behalf of their major product groups. Prior to moving into his current role, Brian was the director of engineering for a product group at Cooper. Brian is currently the owner and principal engineer at Galt Engineering Solutions in Brookfield, Wis. |