ArresterNEWS  

A Monthly eNewsletter from ArresterWorks November 2008  

ArresterNEWS is a totally independent monthly e-journal dealing with system reliability and arresters. 

Understanding the Arrester Energy Handling Issue
 

Bob HilemanThere is no arrester related subject these days that is any more misunderstood than Energy Handling.  The issue is not old, but somehow continues to grow worse rather than better.  Both the IEC and IEEE working groups are trying to develop a new test that will provide the arrester industry with a uniform method of assessing an arresters ability to handle energy.  The energy related to a lightning surge, the energy related to switching surge, or the energy related to a TOV all need to be evaluated in a way that users can understand.  Not only must there be a test, but it appears that there need to be some new definitions.  This month I have put an ArresterFacts together that may help us better understand the issue.

 Nov 9-14th the IEC and IEEE teams are meeting to work on a resolution.   Stay tuned.........
 
 

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The 1924 Bennett Arrester Story 
 
 
 
18 years after the Electrolytic Arrester introduction by GE, the Philadelphia Electric Power Company introduced what they called the Bennett Lightning Arrester.  It was named after the design engineer that invented it.   It was quite simple and its principal of operation depended on evaporating water in the surge current path.  The story of this arrester and its designer Charles E Bennett is this months Arrester History article.  Hope you enjoy it as much as I did writing it. 
 
 
 
Optimize Your Padmount Cabinets with Thomas and Betts Arresters
 

The inside of a padmounted transformer cabinet can be very crowded at times.   T&B says that with their low profile elbow arrester selection you can make this a better situation.   
 
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Surge Protection Hall of Fame

 



Eugene C Sakshaug
High Voltage MOV Technology and Arrester  Designer
 
"The influence of Gene Sakshaug in the early days of high voltage MOV arresters was not subtle" said co-worker James Kresge.  Gene and James were both long term GE employees in the arrester division.  Gene was the key person during the introduction of the new MOV technology.  At the IEEE SPD standards meetings, he will long be remembered for his impromptu and well received lessons on how to design and test arresters.  His now famous "bathtub curve" that described the energy handling capability of MOV stands true to this day.  Gene was the last of his kind at GE as a "King of arrester design in the US."  He closed the, often dominating, GE arrester design era that started some 100 years earlier by Edison and Steinmetz. 
 
Gene's words of wisdom for new engineers are very simple.  "Work like hell, it's a tough world."

Complete Hall of Fame Citation


 
 
Suggestions for inductees are welcome.  Send to Jwoodworth@arresterworks.com

 
 
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ArresterWorks is now available to visit your site to present 4-8 hour seminars on the protection of Distribution System Overvoltage Protection Seminars as well as Substation and Transmission Line