Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electrical power distribution systems and devices
Reexamination Certificate
2005-09-29
2009-12-22
Gandhi, Jayprakash N (Department: 2835)
Electricity: electrical systems and devices
Housing or mounting assemblies with diverse electrical...
For electrical power distribution systems and devices
C361S603000, C361S620000, C312S223600, C174S520000
Reexamination Certificate
active
07636233
ABSTRACT:
A compartmental transformer and a method maintenance therefore is provided. The transformer includes a first compartment housing first equipment electrically coupled to the high voltage side of the transformer and a second compartment housing second equipment electrically coupled with the low voltage side of the transformer. The transformer further includes a maintenance compartment, separate from the first and second compartments, for housing a plurality of maintenance devices used for servicing the transformer while the transformer is energized. The method includes co-locating and securing preventative maintenance devices in one secured compartment remote from a voltage at or above a level corresponding to the lower of the voltages of the primary or secondary sides of the transformer, maintaining the transformer in an energized state, opening the secured compartment, and performing preventative maintenance tasks on respective preventative maintenance devices while the transformer is maintained in the energized state.
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Callsen Thomas P.
Rave Martin A.
Commonwealth Edison Co.
Gandhi Jayprakash N
RatnerPrestia
Thomas Bradley H
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