发明授权
- 专利标题: Terminal bushing having integral overvoltage and overcurrent protection
- 专利标题(中): 具有整体过压和过流保护的端子套管
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申请号: US173786申请日: 1993-12-27
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公开(公告)号: US5583729A公开(公告)日: 1996-12-10
- 发明人: Stephen P. Hassler , Gary L. Goedde , John Lapp
- 申请人: Stephen P. Hassler , Gary L. Goedde , John Lapp
- 申请人地址: TX Houston
- 专利权人: Cooper Industries, Inc.
- 当前专利权人: Cooper Industries, Inc.
- 当前专利权人地址: TX Houston
- 主分类号: H01H31/12
- IPC分类号: H01H31/12 ; H01H85/12 ; H01H85/38 ; H02H7/04
摘要:
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.
公开/授权文献
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