1 Scope
This Standard specifies relevant requirements on the operating range and degree of turbo generators under various abnormal operations.
This Standard is applicable to turbo synchronous generator with the capacity range greater than l00MW.
This Standard may serve as the basis for the user department and manufacturing department to sign the technical agreement. The special requirements for specific products, if any, may be decided by the supplier and the purchaser.
2 Normative References
The following standards contain provisions which, through reference in this Standard, constitute provisions of this Standard. For dated reference, subsequent amendments (excluding corrigendum) to, or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this Standard are encouraged to study whether the latest edition of these documents applies. For undated references, the latest edition of the normative documents referred to applies.
GB 755-2000 Rotating Electrical Machines - Rating and Performance (idt IEC 60034-1:1996)
GB/T 7064-2002 Requirements for Turbine Type Synchronous Machine (IEC 60034-3:1988, NEQ)
3 Terminologies and Definitions
Contents
Foreword i
1 Scope
2 Normative References
3 Terminologies and Definitions
4 Technical Requirements
4.1 Reactive Power Absorption of Turbo Generator
4.2 Short-time Asynchronous Operation of Turbo Generator
4.3 Out-of-step Operation of Turbo Generator
4.4 Stator Overcurrent Limit
4.5 Rotor Overvoltage Limit
4.6 Unbalanced Load
4.7 Operation with Abnormal Frequency
4.8 Water Cut-off Operation
4.9 Out-of-phase Synchronization
4.10 Single-phrase Reclosing
4.11 Startup and Shutdown Times of the Generator Unit
4.12 Inspection of the Turbo Generator after Large System Disturbance
Table 1 Rotor Capability for Withstanding Short Time Overvoltage
Table 2 Unbalanced Load Operation Limit
Table 3 Permissible Operating Time with Abnormal Frequency
