Electricity: electrical systems and devices – Safety and protection of systems and devices – Transformer protection
Patent
1993-12-27
1996-12-10
Gaffin, Jeffrey A.
Electricity: electrical systems and devices
Safety and protection of systems and devices
Transformer protection
361 41, H02H 704
Patent
active
055837298
ABSTRACT:
A terminal bushing having integral overvoltage and fault current protection includes an insulator having an upper and a lower chamber. Nonlinear resistors are disposed in the upper chamber between a top terminal and an intermediate terminal which are mounted on the insulator. The top terminal, the nonlinear resistors and the intermediate terminal form a first current path through the bushing. The bushing also includes a pair of mounting arms which support a current limiting dropout fuseholder. The fuseholder is disposed in series between the top terminal and a bushing stud which is retained in the lower chamber of the bushing body. A second current path through the bushing is thus formed by the top terminal, the fuseholder and the bushing stud.
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Goedde Gary L.
Hassler Stephen P.
Lapp John
Cooper Industries Inc.
Gaffin Jeffrey A.
Medley Sally C.
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