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专利名称：Device for monitoring voltage leads and
method of using same
发明人：Todd E. Kooken,Russell K. Myers申请号：US10054902申请日：20020125公开号：US06570130B1公开日：20030527
专利附图：
摘要：A device for terminating operation of the power source of an electric arc welderfor passing a current between an electrode and work piece from a first stud connectedto the electrode by a first cable and a second stud connected to the work piece by a
second cable to perform a welding process. The welder includes an output transformerwith a known turns ratio, a primary winding and secondary winding. A first voltage senselead is connected to the electrode and a second voltage sense lead connected to thework piece. The novel device comprises an executive program to implement a testsequence involving (a) a program routine for comparing a real time theoretical voltage,determined by the pulse waveform at a given time of the waveform, and the voltage atthe sense leads at the given time; (b) a program routine to terminate operation of thepower source when the theoretical voltage substantially exceeds the sense lead voltage;and, (c) a timing routine to perform the executive program at a set period.
申请人：LINCOLN GLOBAL, INC.
代理机构：Fay, Sharpe, Fagan, Minnich & McKee
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