3 ways to control electrical utility costs

Power factor correction capacitors reduce energy costs by avoiding the premium rates that utilities charge when power factor falls below specified values. Capacitors are energy storage devices that can deliver a lethal shock long after the power to them is disconnected. Here is how to inspect power factor correction capacitors and avoid these problems. Problems such as loose connections, blown fuses or failing capacitors can reduce the amount of power correction available and, in extreme cases, even cause a total system failure or fire. Facilities typically install these capacitors when inductive loads cause power factor problems. Most capacitors are equipped with a discharge circuit but, when the circuit fails, a shock hazard still exists for an extended period of time. Capacitor bank maintenance requires training that&rsquo.

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