Solving the Problem of Frequent Nuisance Trips & Failures in Power-Electronics, PLC & ACDC Motors in a Metal Industry

ABSTRACT

In this case study a world leader in a non-ferrous metal industry engaged in manufacturing of ACSR conductors for HT & EHV electrical power transmission & distributions had been facing high incidence of operational problems across its plants A & B, due to Power Quality (PQ) issues arising out of Harmonic Distortions. Problem arose not solely due to its usage of over 60% Non-Linear-Loads (NLL) like DC-drives in rolling mill, Variable-Frequency-Drives (VFD) in process, PLC in control; but primarily due to its operating near 80 to 100% Load-Factor (LF). That helped establishing factory with least project cost, operating them with least running cost that catapulted the company at top of the competitive chain amongst its peers.

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CS11-ENGG-2009-Solving-the-Problem-of-Frequent-Nuisance-Trips-&-Failures-in-Power-Electronics-PLC-&-ACDC-Motors-in-a-Metal-Industry.pdf

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