Design and development of distorted source device for circuit breakers failure analysis

Lee, Sang-Ick; Yoo, Jae-Geun; Jeon, Hyun-Jae; Choe, Gyu-Ha

doi:10.1109/icpe.2007.4692419

Cited by 2 publications

(1 citation statement)

References 2 publications

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“…Accordingly, power energy distorted sources threaten installed components and induce more severe power-down condition occurrences. Based on assumptions given in literature, an increased level of generated losses resulting from the presence of harmonics may be a source of premature aging of relay elements, e.g., contacts, or decreased effectiveness of the current interruption [11].…”

Section: Problem Statementmentioning

confidence: 99%

Study of Arc Parameters of AC Relays Operating under Distorted Supply Voltage Conditions

Smugala

Bonk

2020

Energies

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The paper presents a procedure for measuring and analyzing the switching arc parameters occurring in air-insulated low voltage (LV) relays operating in distorted supply voltage conditions. The main purpose of the research was the analysis of the switching arc duration and its energy affecting the current breaking capacity of the selected LV current interrupters (CI). The performed study and simple statistical analysis enabled the determination of the main factors and their impact level on parameters of the switching arc that comes about during switching-off operation. Experimental tests executed for various shapes of the supply voltage but similar RMS (Root Mean Square) and THD (Total Harmonic Distortion) values and for various breaking moments of the load current allowed recognition of the decisive factors for estimating the tested relay’s switching-off capacity. Tests stand combined with dedicated software developed in the frame of the research, permiting fast calculation of the arc parameters based on a large number of recorded diagrams.

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Section: Problem Statementmentioning

confidence: 99%