Milestones:World's First Reliable High Voltage Power Fuse, 1909: Difference between revisions

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{{ProposalNomination|docketid= 2009-09|proplink=Worlds First Reliable High Voltage Power Fuse}} <br>
{{Milestone box
|Date Dedicated=2012/08/03
|Dedication=126
|Location=Chicago, IL, U.S.A.
|IEEE Regions=4
|IEEE sections=Chicago
|Summary=S & C, Chicago, IL, USA. In 1909 Nicholas J. Conrad and Edmund O. Schweitzer developed an extremely reliable high voltage power fuse which used an arc-extinguishing liquid to assure proper interruption of short circuits. These fuses, later manufactured at this location, played a major role in the adoption of outdoor distribution substations, and the technology remains a central component of electrical transmission and distribution systems today.
|Abstract=Reliable High-Voltage Power Fuse, 1909In 1909 Nicholas J. Conrad and Edmund O. Schweitzer developed an extremely reliable high voltage power fuse which used an arc-extinguishing liquid to assure proper interruption of short circuits. These fuses, later manufactured at this location, played a major role in the adoption of outdoor distribution substations, and the technology remains a central component of electrical transmission and distribution systems today.
|Special citation=No
}}


== In the space below the line, please enter your proposed citation in English, with '''title''' and '''text'''. ''Text absolutely limited to 70 words; 60 is preferable for aesthetic reasons. NOTE: The IEEE History Committee shall have final determination on the wording of the citation''  ==
[[image:PowerFuse-Plaque.jpg|thumb]]


Reliable High Voltage Power Fuse, 1909&nbsp;
[[Image:S & C Fuse.jpg|thumb|right]]


In 1909 Nicholas J. Conrad and Edmund O. Schweitzer developed an extremely reliable high voltage power fuse, based on the injection of an arc-extinguishing liquid that assured proper interruption of short circuits. These fuses, later manufactured at this location, played a major role in the adoption of outdoor distribution substations, and the technology remains a central component of electrical transmission and distribution systems today.<br>
[[Image:Pat1135548.jpg|thumb|right|Schweitzer and Conrad Patent]]


<br><br><br><br><br><br>''Please also include references and full citations, and include supporting material in an electronic format (GIF, JPEG, PNG, PDF, DOC) which can be made available on the IEEE History Center’s Web site to historians, scholars, students, and interested members of the public. All supporting materials must be in English, or if not in English, accompanied by an English translation. If you are including images or photographs as part of the supporting material, it is necessary that you list the copyright owner.''
[[Image:S&C Fuse South Cal.jpg|thumb|right]]


== In the space below the line, please describe the historic significance of this work: its importance to the evolution of electrical and computer engineering and science and its importance to regional/national/international development. ==
[[Image:Consumers Power.jpg|thumb|right]]


This invention provided an economical, reliable means for interrupting high-current short-circuits in electric utility substations. It allowed utilities to expand their delivery of dependable electrical service to businesses and consumers.  
== Citation ==
 
''Reliable High-Voltage Power Fuse, 1909''
 
''In 1909 Nicholas J. Conrad and Edmund O. Schweitzer developed an extremely reliable high voltage power fuse which used&nbsp;an arc-extinguishing liquid to assure proper interruption of short circuits. These fuses, later manufactured at this location, played a major role in the adoption of outdoor distribution substations, and the technology remains a central component of electrical transmission and distribution systems today.''


<br><br><br><br><br>
== Historical significance ==


== What features or characteristics set this work apart from similar achievements?  ==
This invention provided an economical, reliable means for interrupting high-current short-circuits in electric utility substations. It allowed utilities to expand their delivery of dependable electrical service to businesses and consumers.


This fuse design was much more reliable than previous power fuses. At the time, breakdowns in electrical substations were common, negatively impacting service reliability for customers of electric utilities. Often, the problems were found to be attributable to poorly performing fault protection equipment.  
This fuse design was much more reliable than previous power fuses. At the time, breakdowns in electrical substations were common, negatively impacting service reliability for customers of electric utilities. Often, the problems were found to be attributable to poorly performing fault protection equipment.  
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<br>
<br>


== Please attach a letter in English, or with English translation, from the site owner giving permission to place IEEE milestone plaque on the property. ==
== Images and Further Reading ==
 
[[Media:Pat1135548.pdf|Schweitzer and Conrad Patent]]
 
[[Media:Bulletin_200-A_1-28-10.pdf|1910 Bulletin]]
 
[[Media:Bulletin_200-B_10-30-12.pdf|1912 Bulletin]]
 
[[Media:Instruction_Sheet_210.pdf|Fuse Installation Instructions]]
 
'''Additional Images:'''
 
[[Media:South._Cal._Ed._1.pdf|South. Cal. Ed. 1]]


''The letter is necessary in order to process your nomination form. Click the Attachments tab to upload your letter.''
[[Media:South._Cal._Ed._2.pdf|South. Cal. Ed. 2]]


[[Media:SC_Milestone_permission_Letter-2.doc|SC_Milestone_permission_Letter-2.doc]]  
[[Media:South._Cal._Ed._3.pdf|South. Cal. Ed. 3]]  


[[Media:Pat1135548.pdf|Media:Pat1135548.pdf]]  
[[Media:South._Cal._Ed._4.pdf|South. Cal. Ed. 4]]  


[[Media:1910_expenses-1-.pdf|1910_expenses-1-.pdf]]  
[[Media:Duquesne_Light_11-30-22.pdf|Duquesne Light]]  


[[Media:Bulletin_200-A_1-28-10.pdf|Bulletin_200-A_1-28-10.pdf]]  
[[Media:Consumers_Power_11-26-28.pdf|Consumers Power 11-26-28]]  


[[Media:South._Cal._Ed._4.pdf|Media:South. Cal. Ed. 4.pdf]]
<br>


[[Media:South._Cal._Ed._3.pdf|Media:South. Cal. Ed. 3.pdf]]
== Letter from the site owner giving permission to place IEEE milestone plaque on the property  ==


[[Media:South._Cal._Ed._2.pdf|Media:South. Cal. Ed. 2.pdf]]  
[[Media:SC_Milestone_permission_Letter-2.doc|High Voltage Fuse Milestone Support Letter]]  


[[Media:South._Cal._Ed._1.pdf|Media:South. Cal. Ed. 1.pdf]]
<br>


[[Media:Instruction_Sheet_210.pdf|Media:Instruction Sheet 210.pdf]]
== Proposal and Nomination  ==


[[Media:Duquesne_Light_11-30-22.pdf|Media:Duquesne Light 11-30-22.pdf]]  
[[Milestone-Proposal:Worlds First Reliable High Voltage Power Fuse]]<br><br>[[Milestone-Nomination:Worlds First Reliable High Voltage Power Fuse]]  


[[Media:Consumers_Power_11-26-28.pdf|Media:Consumers Power 11-26-28.pdf]]
{{Milestone|GeoLoc=42.001466, -87.679368|Description=S & C, Chicago, IL, USA. In 1909 Nicholas J. Conrad and Edmund O. Schweitzer developed an extremely reliable high voltage power fuse which used an arc-extinguishing liquid to assure proper interruption of short circuits. These fuses, later manufactured at this location, played a major role in the adoption of outdoor distribution substations, and the technology remains a central component of electrical transmission and distribution systems today.}}


[[Media:Bulletin_200-B_10-30-12.pdf|Media:Bulletin 200-B 10-30-12.pdf]]
[[Category:Computing_and_electronics]]
[[Category:Engineering_fundamentals]]

Latest revision as of 19:35, 20 March 2024

Date Dedicated
2012/08/03
Dedication #
126
Location
Chicago, IL, U.S.A.
IEEE Regions
4
IEEE sections
Chicago
Achievement date range
1909
PowerFuse-Plaque.jpg
S & C Fuse.jpg
Schweitzer and Conrad Patent
S&C Fuse South Cal.jpg
Consumers Power.jpg

Citation

Reliable High-Voltage Power Fuse, 1909

In 1909 Nicholas J. Conrad and Edmund O. Schweitzer developed an extremely reliable high voltage power fuse which used an arc-extinguishing liquid to assure proper interruption of short circuits. These fuses, later manufactured at this location, played a major role in the adoption of outdoor distribution substations, and the technology remains a central component of electrical transmission and distribution systems today.

Historical significance

This invention provided an economical, reliable means for interrupting high-current short-circuits in electric utility substations. It allowed utilities to expand their delivery of dependable electrical service to businesses and consumers.

This fuse design was much more reliable than previous power fuses. At the time, breakdowns in electrical substations were common, negatively impacting service reliability for customers of electric utilities. Often, the problems were found to be attributable to poorly performing fault protection equipment.

The inspiration for the device came to the inventors—two Commonwealth Edison engineers, Nicholas J. Conrad and Edmund O. Schweitzer—after they investigated a fire at the Fisk Street Generating Station. They concluded that the cause of the fire was a power fuse failure.

Schweitzer and Conrad’s fuse design differed from predecessors through its use of a special arc-extinguishing liquid that assured proper interruption of short circuits, and a fusible element that offered unmatched precision in operating only when called upon. The fuse was constructed to withstand the very high temperatures associated with interrupting high-current faults, and was sufficiently rugged so it could be applied outdoors.

The Schweitzer and Conrad Liquid Power Fuse played a major role in the adoption of outdoor distribution substations—a central component of electrical transmission and distribution systems today.


Images and Further Reading

Schweitzer and Conrad Patent

1910 Bulletin

1912 Bulletin

Fuse Installation Instructions

Additional Images:

South. Cal. Ed. 1

South. Cal. Ed. 2

South. Cal. Ed. 3

South. Cal. Ed. 4

Duquesne Light

Consumers Power 11-26-28


Letter from the site owner giving permission to place IEEE milestone plaque on the property

High Voltage Fuse Milestone Support Letter


Proposal and Nomination

Milestone-Proposal:Worlds First Reliable High Voltage Power Fuse

Milestone-Nomination:Worlds First Reliable High Voltage Power Fuse


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