ROTATING ELECTRICAL MACHINES - PART 3: SPECIFIC REQUIREMENTS FOR SYNCHRONOUS GENERATORS DRIVEN BY STEAM TURBINES OR COMBUSTION GAS TURBINES
International Electrotechnical Committee
FOREWORD
1 Scope
2 Normative references
3 Terms and definitions
4 General
4.1 General rules
4.2 Rated conditions
4.3 Rated voltage
4.4 Power factor
4.5 Rated speed
4.6 Ranges of voltage and frequency
4.7 Direction of rotation
4.8 Stator winding
4.9 Generator rated field current and voltage
4.10 Winding insulation
4.10.1 Thermal class
4.10.2 Withstand voltage tests
4.11 Insulation against shaft current
4.12 Over-speed test
4.13 Critical speeds
4.14 P-Q capability diagram
4.15 Overcurrent requirements
4.16 Sudden short circuit
4.17 Short-circuit ratio
4.18 Direct axis transient and subtransient reactances for
generators
4.19 Tolerances on short-circuit ratio and direct axis
transient and subtransient reactances
4.20 Mechanical conditions for rotors
4.20.1 Number of starts
4.20.2 Turning gear operation
4.21 Coolers
5 Air-cooled generators
5.1 General
5.2 Generator cooling
5.3 Temperature of primary coolant
5.3.1 Temperature detectors
6 Hydrogen-cooled or liquid-cooled generators
6.1 General
6.2 Hydrogen pressure and purity in the casing
6.3 Generator housing and cover plates
6.4 Stator winding terminals
6.5 Temperature of primary coolants, temperatures and
temperature rises of the generator
6.6 Temperature detectors
6.7 Auxiliary system
7 Generators for combustion gas turbines or combined
cycle applications
7.1 General
7.2 Service conditions
7.2.1 General
7.2.2 Primary coolant temperature
7.2.3 Number of starts
7.2.4 Application of load
7.3 Rated output
7.4 Capabilities
7.4.1 General
7.4.2 Base capability
7.4.3 Temperature rise and temperature at base
capability
7.4.4 Peak capability
7.5 Rating plate
7.6 Temperature tests
Annex A (normative) Precautions to be taken when using
hydrogen cooled turbine-driven synchronous
generators
Bibliography
Applicable to three-phase synchronous generators, having rated outputs of 10 MVA and above driven by steam turbines or combustion gas turbines.
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | TC 2 |
| Supersedes |
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