EN 60953-2:1995
Current
The latest, up-to-date edition.
Rules for steam turbine thermal acceptance tests - Part 2: Method B - Wide range of accuracy for various types and sizes of turbines
12-15-1995
FOREWORD
PREFACE
INTRODUCTION
1 Scope and object
1.1 Scope
1.2 Object
1.3 Matters to be considered in the contract
2 Units, symbols, terms and definitions
2.1 General
2.2 Symbols, units
2.3 Subscripts, superscripts and definitions
2.4 Definition of guarantee values and test results
3 Guiding principles
3.1 Advance planning for test
3.2 Preparatory agreements and arrangements for tests
3.3 Planning of the test
3.4 Preparation of the tests
3.5 Comparison measurements
3.6 Settings for tests
3.7 Preliminary tests
3.8 Acceptance tests
3.9 Repetition of acceptance tests
4 Measuring techniques and measuring instruments
4.1 General
4.2 Measurement of power
4.3 Flow measurement
4.4 Pressure measurement (excluding condensing turbine
exhaust pressure)
4.5 Condensing turbine exhaust pressure measurement
4.6 Temperature measurement
4.7 Steam quality measurement
4.8 Time measurement
4.9 Speed measurement
5 Evaluation of tests
5.1 Preparation of evaluation
5.2 Computation of results
6 Correction of test results and comparison with guarantee
6.1 Guarantee values and guarantee conditions
6.2 Correction of initial steam flow capacity
6.3 Correction of maximum output
6.4 Correction of thermal and thermodynamic efficiency
6.5 Definition and application of correction values
6.6 Correction methods
6.7 Variables to be considered in the correction
6.8 Guarantee comparison
6.9 Deterioration of turbine performance (ageing)
7 Measuring uncertainty
7.1 General
7.2 Determination of measuring uncertainty of steam
and water properties
7.3 Calculation of measuring uncertainty of output
7.4 Determination of measuring uncertainty of mass flow
7.5 Calculation of measuring uncertainty of results
APPENDIX A - Feedwater heater leakage and condenser leakage
tests
APPENDIX B - Throat tap nozzle
APPENDIX C - Evaluation of multiple measurements, compatibility
APPENDIX D - Mass flow balances
APPENDIX E - Typical generalized correction curves for
correction of test results according to guarantee
conditions
APPENDIX F - Short statistical definition of measuring and
uncertainty error propagation in acceptance tests
APPENDIX G - Calculation of measuring uncertainty of output -
Electrical measurement
Annex ZA (normative) Normative references to international
publications with their corresponding
European publications
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