Why Medium Voltage Motors Are Form Wound

Most electrical engineers and industrial electricians have worked with low voltage (LV) motors throughout their careers, from a 4-copper-wire 15 V HVAC fan in an office building to an irrigation pump or a larger motor driving a conveyor at a mine site. Small and medium-sized LV motors like these are typically random-wound. In random-wound motors, […]
Cascaded H-Bridge Topology in TECO MV510 and MV550 Medium Voltage Variable Speed Drives

Medium voltage (MV) variable speed drives (VSDs) on large process loads carry significant risk when they fail. On a SAG mill, ball mill, conveyor or major pump station, unplanned downtime can cost tens or hundreds of thousands of dollars per hour. That is the direct production loss alone, before considering any indirect costs. When an […]