DISTRTIBUTING BOARD CABINET PANEL FOR TUNNEL LAMP CONTROLLING WITH CAPABILITY OF DETECTING FUNCTION LOOSE CONTACT AND ARC

摘要

PURPOSE: A distributing board cabinet panel for tunnel lamp controlling with capability of detecting function loose contact and arc is provided to detect a sign of electric fire due to the arc and poor contact in advance by detecting an electrical error state. CONSTITUTION: A detector(101) on a real time basis detects a state value of the power provided to the tunnel lamp. A data converter(110) digitizes the state value of the power source detected from detector. The state value of the digitized power source is changed into the power state data. The detection device of abnormal state detecting unit(120) executes the sensing algorithm for the electrical contact defect and ARC detection based on power source state data.