Event timing and shape analysis of vibration bursts from power circuit breakers
| Autor: | J.W. Porter, Andreas A. Polycarpou, Victor Demjanenko, V. Swarnakar, Andres Soom, R.A. Valtin, M. Soumekh, D.M. Benenson, R.S. Acharya |
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| Rok vydání: | 1996 |
| Předmět: |
Signal processing
Engineering Shape analysis (program analysis) business.industry Energy Engineering and Power Technology Power (physics) Portable computer Automatic test equipment Electric power system Data acquisition Electronic engineering Electrical and Electronic Engineering business Circuit breaker |
| Zdroj: | IEEE Transactions on Power Delivery. 11:848-857 |
| ISSN: | 0885-8977 |
| Popis: | Noninvasive vibration diagnostic techniques are implemented to assess the mechanical condition of power circuit breakers. A diagnostic system, the prototype commercial portable diagnostic system (PCPDS) has been developed Hardware of the PCPDS includes a portable computer, and a data acquisition unit and computer communication cards. Signal processing techniques include the discrete energy statistics envelope, short-time power spectrum, timing extraction algorithm and chi-square based shape test. Decision-making is carried out via a voter program, to which individual results from the timing and shape analysis programs are passed. Statistical and empirical thresholds have been established, that classify the circuit breaker as being in normal-transitional-abnormal (green-yellow-red) condition. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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