How do I know if my motor needs an overload relay and VSD?

An overload in a motor circuit can take several forms. For example, an overcurrent fault due to a short circuit or earth fault, or a motor overload. It raises the question “Does my motor need an overload relay and VSD?” Each fault type needs different handling, and the type of protection depends on the needs […]

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Monitoring system prevents losses from failing drives systems

Drives and rotating machines are at the heart of most production processes. Providing early warning for failing drives systems is straight forward in application and cost effective when using predictive maintenance. To a high degree, modern drive systems are reliable, but when failures occur, they are costly and time consuming. Direct and indirect costs from […]

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Why electric motors fail in industrial applications and how to prevent it

With their high reliability, we sometimes forget why electric motors fail and how avoiding this needs some simple TLC. Focussing on this important issue, ABB has an interactive online booklet examining the main reasons why electric motors fail and how to prevent it. They also identify the six main failure categories, and of these, bearing […]

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Functional safety definitions for inverter drives

ABB Drives published a white paper addressing (inverter) drive-based functional safety and part one includes the basic definitions for industrial systems. This addresses the replacement of electro-mechanical safety systems with electronic safety built into the drive’s safety logic. The white paper also addresses the EU Machinery Directive and harmonized standards, and ABB drives safety offering. […]

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Protecting motor driven systems with the correct breaker

Motor driven systems are in everything from processes, to commercial heating, ventilating, cooling, and refrigeration. With business productivity so dependent on them, it’s important that they’re protected. OEM machine builders and electrical contractors need to ensure that there is a circuit breaker used on all motor driven systems. According to Schneider Electric’s Henrique Matheus, selecting […]

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