Title :
Event timing and shape analysis of vibration bursts from power circuit breakers
Author :
Polycarpou, A.A. ; Soom, A. ; Swarnakar, V. ; Valtin, R.A. ; Acharya, R.S. ; Demjanenko, V. ; Soumekh, M. ; Benenson, D.M. ; Porter, J.W.
Author_Institution :
State Univ. of New York, Buffalo, NY, USA
fDate :
4/1/1996 12:00:00 AM
Abstract :
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
Keywords :
automatic test equipment; automatic testing; data acquisition; power engineering computing; signal processing; switchgear testing; vibration measurement; chi-square based shape test; computer communication cards; data acquisition unit; decision-making; discrete energy statistics envelope; green-yellow-red condition; mechanical condition assessment; noninvasive vibration diagnostic techniques; normal-transitional-abnormal condition; portable computer; power circuit breakers; short-time power spectrum; signal processing techniques; timing extraction algorithm; voter program; Circuit breakers; Data acquisition; Hardware; Portable computers; Prototypes; Shape; Signal processing algorithms; Statistical analysis; Timing; Vibrations;
Journal_Title :
Power Delivery, IEEE Transactions on
