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The Same Data, a Second Use Case Electrical Signature Analysis is usually framed as a fault-detection tool, but the underlying data -- continuous current and voltage readings at the motor -- doubles as a genuinely useful energy performance dataset. Load, efficiency, and real operating conditions are all visible in the same signal used to catch a developing bearing fault or a phase imbalance. What It Reveals Analyzing that data over time can surface sources of energy waste tha

The Problem Note: this example is documented by Insens, the developer of the RED sensor technology Reliability AI deploys -- not a Reliability AI client engagement. We're sharing it because it illustrates exactly the kind of fault our RED sensor is built to catch. At an aggregate processing site, a vibrating screen driven by an induction motor through a belt-and-pulley transmission kept losing bearings. The maintenance team had chalked it up to normal wear -- the failures kep

The Core Idea: Mechanical Forces Become Electrically Visible It sounds counterintuitive at first: how can a sensor reading electrical current tell you anything about a worn bearing or a misaligned shaft? The answer lies in torque. Mechanical faults -- misalignment, imbalance, bearing degradation -- generate small cyclic forces with every rotation, and those forces produce tiny, repeating fluctuations in the torque the motor has to deliver to keep the shaft turning. A motor's

The Problem With Periodic Vibration Rounds Vibration analysis has been a mainstay of rotating equipment monitoring for decades, and it's genuinely good at what it does: detecting mechanical faults like imbalance, misalignment, and bearing wear at a specific measurement point. The limitation isn't accuracy -- it's timing. A monthly or quarterly vibration route only captures a snapshot. Between visits, a fault can appear, progress, and cause a failure with nobody watching. That

What Is Voltage Imbalance? Voltage imbalance occurs when the voltage supplied across a motor's three phases isn't equal -- often from an unbalanced utility supply, single-phasing upstream, or a developing connection problem. Even a small percentage of voltage imbalance produces a disproportionately larger current imbalance, which drives excess heating in the motor windings. Why a Small Imbalance Is a Bigger Problem Than It Looks NEMA guidance has long noted that voltage imbal

Why Loose Lugs Are So Dangerous A loose lug connection is one of the most common -- and most preventable -- causes of electrical failure in motor circuits. As a lug loosens or a terminal corrodes, contact resistance at that joint increases. Increased resistance means increased heat, and that heat accelerates further corrosion and loosening, forming a self-reinforcing cycle that can end in a burned terminal, an arc flash event, or an unplanned trip. Signs to Watch For Discolor

What Is a Phase-to-Phase Short Circuit? A phase-to-phase short circuit occurs when insulation breaks down between two of a motor's three phases, letting current arc directly between them instead of flowing through the winding as designed. Left undetected, it can escalate in seconds from a developing insulation fault to a catastrophic winding failure, a tripped breaker, and unplanned downtime. What Causes It Phase-to-phase shorts are typically the end stage of a slower-develop

One of the most common — and costly — causes of premature motor and equipment failure is shaft misalignment . Whether it’s between a...

Gearboxes are often at the heart of heavy industrial equipment, quietly transferring power between the motor and the driven machine. When...