IEEE 122-1985
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IEEE Recommended Practice for Functional Performance Characteristics of Control Systems for Steam Turbine-Generator Units
| Published By | Publication Date | Number of Pages |
| IEEE | 1985 |
New IEEE Standard – Superseded. Superseded by 122-1991. Minimum functional and performance characteristics related to speed/load-control systems for steam turbine-generator units that may be interconnected on a power system are recommended. The recommendations apply to the following types of steam turbines, rated at 500 kW and larger, intended to drive electric generators at constant speed without initial steam-pressure control, exhaust steam pressure control, or either: (1) condensing or noncondensing turbines without initial steam-pressure control, exhaust steam-pressure control, or either, including turbines used with reheat, regenerative feedwater heaters, or both; (2) condensing or noncondensing turbines with initial and/or exhaust steam-pressure control, including turbines used with reheat, regenerative feedwater heaters, or both; (3) automatic extraction and/or induction and mixed-pressure turbines. Emergency governors, other overspeed control devices, and, in general, devices that are not responsive to speed are not covered.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 9 | 1 Object and Scope 1.1 Object 1.2 Scope 2 References |
| 10 | 3 Definitions and Descriptions of Terms 3.1 Types of Steam Turbine Straight Condensing Turbine Straight Noncondensing Turbine Nonautomatic Extraction Turbine Condensing or Noncondensing Automatic Extraction Turbine Condensing or Noncondensing |
| 11 | 3.2 Speed/Load-Control System Components Automatic Extraction or Induction Turbine or both Condensing or Noncondensing Fig 6 Mixed Pressure Turbine Condensing or Noncondensing Fig 7 Reheat Turbine Condensing or Noncondensing |
| 12 | (c) Typical Extraction Pressure Control (Single Automatic) |
| 13 | 3.3 Functions Characteristics and Definitions Fig 9 Deadband |
| 14 | Illustration of Steady-State Speed Regulation of |
| 16 | Illustration of Incremental Speed Regulation |
| 17 | Steady-State Control Load Band |
| 18 | 4.2 Standard Equipment Specdication 4.2.1 Speed/Load-Control System |
| 19 | 4.2.2 Speed/Load Reference Changer 4.2.3 Valve Position Limited (Load Limit) 4.2.4 Miscellaneous 4.3 Optional Equipment 4.3.1 Valve Position Limiter 4.3.2 Adjustment of Steady-State Regulation 4.4.3 Conditions for Stability |
| 20 | 4.4.4 Steady-State Speed Regulation 4.4.7 Overspeed 4.4.8 Range of Speed/Load Reference Changer Adjustment |
| 21 | 5 Equipment and Performance Specifications 5.1.1 Steam-Pressure-Control System 5.1.2 Pressure Reference Changer 5.2 Optional Equipment 5.3 Performance Specification 5.3.1 Stability of Steam-Pressure-Control System 5.3.2 Steady-State Pressure Regulation |
| 22 | 5.3.3 Range of Pressure Reference Adjustment 6 Equipment and Performance Specifications 6.1 Standard Equipment 6.2 Optional Equipment 6.3 Performance Specifications 6.3.1 Stability of Speed/Load-Control System 6.3.2 Steady-State Speed Regulation 6.3.3 Steady-State Incremental Speed Regulation (Modifying 6.3.5 Performance of Compensated Control System 7 Description Literature |
| 23 | 8 Acceptance Tests 9 Bibliography |
| 24 | System Fig A1 Typical EHC Speed/Load-Control System |
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