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Voltage source Inverter (VSI) technology, suitable for synchronous motor applications, now exists with high power ratings producing high output voltage (ges11 kV) with significant benefits over the widely used load commutated inverter (LCI) drives. The paper covers an existing VSI technology applied for the first time at a higher operating voltage. This 15.5 MW, 11 kV VSI Adjustable Speed Drive (ASD)...
High resistance grounding (HRG) of 480 V to 5 kV industrial power systems increases service continuity, enhances personnel safety and reduces equipment damage when a ground fault occurs. HRG allows maintenance personnel to quickly and safely locate a ground fault while avoiding unscheduled downtime. An abundance of literature has been published on HRG practices since the mid-1970s. Recent years have...
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