Transcription of Avoiding Flashover in Medium Voltage Switchgear
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Avoiding Flashover in Medium Voltage Switchgear
Highvec Canada Inc. Page 1 8/11/2009. Avoiding Flashover in Medium Voltage Switchgear Chuck Humphrey Highvec Canada Inc. Timmins, Ontario, Canada Abstract: This paper describes some of our experiences over the last 20 years related to damage from corona discharge in 5kv and 15kv indoor/outdoor Metal Clad Switchgear . Tracking it down and verifying our findings, using IR Imaging, UV Imaging, Ultrasonic Detection and visual inspection. Corona is a serious issue in metal clad Switchgear because of its highly destructive nature and is the cause of most flashovers in Medium Voltage metal clad electrical equipment. The fundamental cause of this symptom is an electrical breakdown of air brought on by electrical stress and poor air quality within the Switchgear .
Highvec Canada Inc. Page 1 8/11/2009 Avoiding Flashover in Medium Voltage Switchgear Chuck Humphrey Highvec Canada Inc. Timmins, Ontario, Canada
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