Post arc current of vacuum interrupter after large current interruption

Postarc current characteristics of a vacuum interrupter have been examined under a condition of high-current interruption. A measurement technique was developed in which a shunt for measuring postarc current was set in a synthetic test circuit voltage source. Postarc current was measured after a 20-...

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Bibliographic Details
Published in:IEEE transactions on power delivery 1988-10, Vol.3 (4), p.1692-1697
Main Authors: Hakamata, Y., Kurosawa, Y., Natsui, K., Hirasawa, K., Kurita, K.
Format: Article
Language:English
Subjects:
Applied sciences
Circuit breakers
Circuit testing
Connection and protection apparatus
Current measurement
Electrical engineering. Electrical power engineering
Electrical resistance measurement
Electrodes
Exact sciences and technology
Interrupters
Mathematical model
Measurement techniques
Vacuum arcs
Voltage
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Summary:Postarc current characteristics of a vacuum interrupter have been examined under a condition of high-current interruption. A measurement technique was developed in which a shunt for measuring postarc current was set in a synthetic test circuit voltage source. Postarc current was measured after a 20-57 kA current interruption. The magnitude was greatly influenced by the rate of current decline. Residual resistance between electrodes was calculated from the measured values of recovery voltage and postarc current. The recovery of residual resistance was very rapid immediately after current zero and become slow later.< >
ISSN:0885-8977
1937-4208
DOI:10.1109/61.193973