Ventilation-on-demand systems can deliver energy savings exceeding 20% in underground mines, but success demands more than simply bolting on a VFD. by Jonathan Rowland Out of sight, and out of mind: at many mines, fans run at maximum capacity around the clock, regardless of actual demand. The consequences of this approach are costly: excessive energy consumption, equipment wear, and dust…
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Why predicting vertical motor resonance is a more accurate method for equipment protection. by Harendra Singh and Ravi Kumar, Wolong Electric America Vibration in rotating machinery is a leading cause of premature failure, costly downtime, and safety hazards. For operators of vertical motors, one of the most important vibration-related concepts to understand is reed critical frequency (RCF). This natural frequency…
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How premature motor failures for one of its Pennsylvania customers, causing downtime and raising even more questions, resulted in a solution from Franklin Electric: reliability through equipment optimization. Water management is a central issue at virtually every mine and facility, active or not, in nearly every corner of the globe. While others suffer from drought conditions, others are simultaneously contending…
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