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Early Electrification of Buffalo: 60-Hz Replaces 25-Hz

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[[Image:13-171 25-60hz slide 1 cropped.GIF|thumb|left|Graph of 25-Hz & 60 Hz Load]] This brings us up to 1930 when another great event took place, the start of the 60-Hz system in Western New York and the conversion from 25-Hz to 60-Hz. As outlined below, the conversion in Buffalo took 76 years. (Refer to the two-part article '25-Hz at Niagara Falls - end of an era on the Niagara Frontier' in the Jan/Feb and Mar/Apr 2008 issues of IEEE ''Power& Energy'' magazine)  
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[[Image:13-171 25-60hz slide 1 cropped.GIF|thumb|left|Graph of 25-Hz & 60 Hz Load]] This brings us up to 1930 when another great event took place, the start of the 60-Hz system in Western New York and the conversion from 25-Hz to 60-Hz. As outlined below, the conversion in Buffalo took 76 years. (Refer to the two-part article '25-Hz at Niagara Falls - end of an era on the Niagara Frontier' in the Jan/Feb and Mar/Apr 2008 issues of IEEE ''Power& Energy'' magazine; author’s recollections.)  
  
 
[[Image:13-172 25-60hz slide 2 cropped.GIF|thumb|right]]  
 
[[Image:13-172 25-60hz slide 2 cropped.GIF|thumb|right]]  
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== References<br> ==
 
== References<br> ==
  
i. Related to the author by Jack Pfohl NMP Electric Planner, ca. 1953; author’s recollections. == <br><pageby nominor="false" comments="false"></pageby>;  
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i. Related to the author by Jack Pfohl NMP Electric Planner, ca. 1953. == <br><pageby nominor="false" comments="false"></pageby>;  
  
 
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Revision as of 19:36, 21 November 2008

Graph of 25-Hz & 60 Hz Load
Graph of 25-Hz & 60 Hz Load
This brings us up to 1930 when another great event took place, the start of the 60-Hz system in Western New York and the conversion from 25-Hz to 60-Hz. As outlined below, the conversion in Buffalo took 76 years. (Refer to the two-part article '25-Hz at Niagara Falls - end of an era on the Niagara Frontier' in the Jan/Feb and Mar/Apr 2008 issues of IEEE Power& Energy magazine; author’s recollections.)

1947 - The beginning of end of the 25-Hz system when the company announced no new 25-hz customers. In 1949 the last arc lights were discontinued. They were on Main Street in downtown Buffalo.i

1952 - Western Division 60-Hz peak load exceeded the 25-Hz peak load. In 1956 the Buffalo downtown dc Edison System was shut down.

1956 - Schoellkopf disaster which destroyed Stations 3B and 3C. 25 Hz was still available from other sources but at a higher cost. In the 1960’s the Shredded Wheat Company in Niagara Falls was the last two-phase four-wire customer.

1998 - New York Public service Commission approves the elimination of the 25-Hz system by December 31, 2007. Customer contributions were required if repairs exceed $25,000. In 2002 the company initiated an incentive program that provided a limited matching grant to retrofit customer equipment for 60-Hz operation

2006 - On October 12 at 8:53 pm, 66-kV transmission conductors came down during the ‘October Surprise’ snow storm. The five remaining customers elected not to contribute to the cost of repairs. Thus ended almost 110 years of 25-Hz service in Buffalo.

References

i. Related to the author by Jack Pfohl NMP Electric Planner, ca. 1953. ==