The phrase OCV is an acronym for Open up Circuit Voltage. It is the unloaded DC voltage that is latest at the Weld output final of a Welder. This voltage normally averages among sixty-ninety VDC in Adhere (SMAW) mode of operation. The a simple exception to this (in which an AC voltage is latest) happens when dealing with a Transformer based Adhere Welder (generally termed a Buzz box) which has no DC rectification of the transformers secondary voltage. In other modes of operation (Weld processes) such as MIG (GMAW), or TIG (GTAW), the OCV will be numerous to that specified in telechargement gratuit PhotoFiltre Remain mode. The Weld procedure that is selected is centered on the effectiveness of the Welder. Not all Welders are able of various processes. For occasion, easier Welders have Keep mode of operation only.When Complications Capturing an SCR (Silicon Controlled Rectifier) predominantly based Welder, an OCV measurement offers a useful machine in direction of an efficient fix. The initial move in this procedure is to converse to the Welders Aid Manual. The Requirements world wide web webpage will exhibit the Maximum OCV for the selected Weld procedure.
Report this voltage!Subsequent, talk to the Schematic to reveal the quantity photofiltre of SCR’s in the format, and the efficient volume of switched current paths. Report the quantity of current paths! In this scenario, a current route is a department from the Transformers secondary winding, via an SCR (Anode to Cathode), and culminating into a latest node prior to filtering by the output Inductor (Reactor). The current node typically has numerous branches feeding into it with just one devoted output.Utilizing a DVM (Electronic Volt Meter) measure the OCV of the Welder. If it is near to the Maximum OCV then this signifies that all SCR’s are firing (triggered from an applied gating voltage), ffdshow download and would be an great circumstance. If not, divide the Optimum OCV by the quantity of switched current paths. This volume represents the Voltage that just about every SCR or current route offers as part of the format. Subtract this well worth from the Maximum OCV. If the worth (Voltage) equals the Welders measured voltage then just one SCR or current route is faulty. If not, carry on this method for the assortment of current paths that are remaining used.
0 comments:
Post a Comment