| Vacuum interrupter, high reliability component of distribution switches, circuit breakers and contactors |
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| 作者姓名： | SLADE Paul G LI Wang-pei MAYO Stephen SMITH R. Kirkland TAYLOR Erik D |
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| 作者单位： | Eaton Electrical Horseheads，NY 14845，USA，Eaton Electrical，Horseheads，NY 14845，USA，Eaton Electrical，Horseheads，NY 14845，USA，Eaton Electrical，Horseheads，NY 14845，USA |
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| 摘 要： | The use of vacuum interrupters(VIs)as the current interruption component for switches,circuit breakers,reclosers and contactors operating at distribution voltages has escalated since their introduction in the mid-1950’s.This electrical product has developed a dominating position for switching and protecting distribution circuits.VIs are even being introduced into switching products operating at transmission voltages.Among the reasons for the VI’s popularity are its compactness,its range of application,its low cost,its superb electrical and mechanical life and its ease of application.Its major advantage is its well-established reliability.In this paper we show how this reliability has been achieved by design,by mechanical life testing and by electrical performance testing.We introduce the“sealed for life”concept for the VI’s integrity.We discuss this in terms of what is meant by a practical leak rate for VIs with a life of over 30 years.We show that a simple high voltage withstand test is an easy and effective method for monitoring the long-term vacuum integrity.Finally we evaluate the need for routine inspection of this electrical product when it is used in adverse ambient environments.
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| 关 键 词： | Vacuum interrupter (Ⅵ) |
| 收稿时间： | 2006-12-19 |
| 修稿时间： | 2007-01-10 |
Vacuum interrupter,high reliability component of distribution switches,circuit breakers and contactors |
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| SLADE Paul G LI Wang-pei MAYO Stephen SMITH R. Kirkland TAYLOR Erik D.Vacuum interrupter, high reliability component of distribution switches, circuit breakers and contactors[J].Journal of Zhejiang University Science,2007,8(3):335-342. |
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| Authors: | Slade Paul G Li Wang-pei Mayo Stephen Smith R Kirkland Taylor Erik D |
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| Institution: | (1) Eaton Electrical, Horseheads, NY 14845, USA |
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| Abstract: | The use of vacuum interrupters (VIs) as the current interruption component for switches, circuit breakers, reclosers and contactors
operating at distribution voltages has escalated since their introduction in the mid-1950’s. This electrical product has developed
a dominating position for switching and protecting distribution circuits. VIs are even being introduced into switching products
operating at transmission voltages. Among the reasons for the VI’s popularity are its compactness, its range of application,
its low cost, its superb electrical and mechanical life and its ease of application. Its major advantage is its well-established
reliability. In this paper we show how this reliability has been achieved by design, by mechanical life testing and by electrical
performance testing. We introduce the “sealed for life” concept for the VI’s integrity. We discuss this in terms of what is
meant by a practical leak rate for VIs with a life of over 30 years. We show that a simple high voltage withstand test is
an easy and effective method for monitoring the long-term vacuum integrity. Finally we evaluate the need for routine inspection
of this electrical product when it is used in adverse ambient environments.
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| Keywords: | Reliability Mechanical life Electrical life |
| 本文献已被 CNKI 维普 SpringerLink 等数据库收录！ |
