Battery-free wireless sensor system monitors busbars and busways

April 20, 2011
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Degraded or loose joins of high current busway elements and likewise connections of current consumers to busbars are subject to improper assembly and they degrade over time. Any loose or corroded joint or connection causes increasing resistive heat before eventually a fatal burnout occurs when the load peaks.

Manual inspection often interferes with continuous production, it cannot be applied under full load, and leaves large periods of non-attendance. Fiberoptic temperature sensors are an acceptable method of monitoring critical spots under galvanic insulation in medium voltage applications, but usually too costly in low voltage switchboards.

Article source: http://eetimes.eu/en/battery-free-wireless-sensor-system-monitors-busbars-and-busways.html?cmp_id=7&news_id=222906893&vID=209 The feed :

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