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eLibrary > BS ISO 22266-1:2022 - TC Tracked Changes. Mechanical vibration - Torsional vibration of rotating machinery - Evaluation of steam and gas turbine generator sets due to electrical excitation >

BS ISO 22266-1:2022 - TC Tracked Changes. Mechanical vibration - Torsional vibration of rotating machinery - Evaluation of steam and gas turbine generator sets due to electrical excitation, 2022

30459869
A-30423420 [Go to Page]
National foreword
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Abbreviated terms and symbols [Go to Page]
4.1 Abbreviated terms
4.2 Symbols
5 Shaft train modelling and uncertainties [Go to Page]
5.1 General
5.2 Modelling of the shaft train and the electrical system [Go to Page]
5.2.1 General
5.2.2 Elastic blade modelling
5.2.3 Modelling generator rotor windings
5.2.4 Grid/excitation modelling
5.2.5 Damping modelling
5.2.6 Gear box modelling
5.2.7 Flexible coupling modelling
5.3 Design element uncertainties
5.4 Determination of calculation uncertainties
6 Shaft train evaluation [Go to Page]
6.1 General
6.2 Natural frequency assessment [Go to Page]
6.2.1 General
6.2.2 Torsional frequency margins
6.2.3 Natural frequency criteria
6.3 Stress assessments [Go to Page]
6.3.1 General
6.3.2 Expertise criterion
6.3.3 Stress/fatigue criterion
7 Calculation of shaft train torsional vibration [Go to Page]
7.1 General
7.2 Calculation data
7.3 Calculation results
7.4 Calculation report
8 Measurement of shaft train torsional vibration [Go to Page]
8.1 General
8.2 Method of measurement
8.3 Measurement report
9 General requirements [Go to Page]
9.1 Supplier and customer responsibilities
9.2 Acceptance criterion
Annex A (informative) Torsional vibration measurement techniques
Annex B (informative) Frequency margin examples relative to grid and twice grid frequencies for shaft train modes
Annex C (informative) Commonly experienced electrical faults
Bibliography [Go to Page]

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