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What is Over Speed Guidance for Alternators about?

This document provides guidance on using standard Cummins alternators in applications where overspeed conditions could occur, such as with water turbines. It states that standard 4-pole rotors would not survive a 3000 RPM overspeed without damage. The rotor, exciter, and other components would need to be specially engineered to withstand such extreme overspeed. It concludes that for overspeed protection, the turbine control system must limit overspeed to under 2500 RPM for 30 seconds or 2250 RPM for up to 1

Author

ariwibowo

Language

EN