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See Chinese contents: GB/T 7409.3-2007 GB/T 7409.3-2007: Excitation system for synchronous electrical machines -- Technical requirements of excitation system for large and medium synchronous generators
This Part specifies the technical requirements, test items, marking and packing of the excitation systems for synchronous electrical machines and phase modifiers and it applies to the excitation systems for those 10MW and above hydraulic generators, 50MW and above turbine-type synchronous electrical machines and phase modifiers that are connected with power system.
