IEEE 600-1949
AIEE Recommended Specification for Speed Governing of Prime Movers Intended to Drive Electric Generators Rated 500 kw and Up
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About This Item
600-1949 is a superseded technical specification for speed governing of prime movers intended to drive electric generators rated 500 kW and up. The document addresses how governing systems should control generator-driving engines or turbines so operating speed remains suitable for stable electrical generation. In the context of power, energy, and related electromechanical systems, it is relevant to consistent performance, coordination, and dependable generator operation in larger installations.
600-1949 overview
This standard sets out recommended requirements for the speed governing function of prime movers used with sizeable electric generators. The focus of 600-1949 is on the governing response needed to support generating equipment that must operate within defined speed limits under changing load conditions. For engineering teams, it provides a technical reference for comparing designs, reviewing compliance, and understanding the intended control behavior of generator drive systems in utility and industrial power applications.
Typical use cases
600-1949 is most relevant when specifying or reviewing prime movers connected to generators rated 500 kW and above. It may be used for turbine-driven or engine-driven generator sets where speed control affects electrical output stability and load acceptance. Common applications include power plants, industrial backup generation, and other large-scale generating installations that need consistent governing performance during starting, loading, and operating transitions.
Why this standard matters
Speed governing has a direct effect on generator performance, and 600-1949 helps define a common basis for that control. Using a recognized specification can reduce ambiguity during procurement, design review, and testing of prime movers and governing equipment. It also supports more consistent evaluation of response characteristics, helping operators and engineers manage performance risks, avoid unstable operation, and maintain better coordination between the prime mover and the generator.
- Speed governing for prime movers
- Generators rated 500 kW and above
- Control behavior under changing load
- Applicable to large generating sets
- Superseded technical reference
- Publication Date: 1949
- Standard Status: Superseded
- Publisher: IEEE
- Subject: Power, Energy and Industry Applications; Components, Circuits, Devices and Systems; Fields, Waves and Electromagnetics
- Official IEEE: Doi link
- New Version Available: 600 (2021)
- This Version: 600 (1949)
- Previous Version: 600 (1944)
- Previous Version: 600 (1983)
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