ASME PTC 19.6 2018
$98.04
ASME PTC19.6 Electrical Measurements In Power Circuits
| Published By | Publication Date | Number of Pages |
| ASME | 2018 | 73 |
Measurement techniques and instrumentation used in electrical measurements associated with Performance Test of Power Plant Equipment.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 4 | CONTENTS |
| 7 | NOTICE |
| 8 | FOREWORD |
| 9 | ASME PTC COMMITTEE ROSTER |
| 10 | CORRESPONDENCE WITH THE PTC COMMITTEE |
| 12 | INTRODUCTION |
| 14 | Section 1 Object and Scope 1-1 OBJECT 1-2 SCOPE 1-3 TEST UNCERTAINTY Tables Table 1-3-1 Class Requirements for Active Power Measurement Uncertainty |
| 15 | 1-4 OTHER REQUIREMENTS AND REFERENCES 1-4.1 Other Requirements 1-4.2 References |
| 16 | Section 2 Definitions and Descriptions of Terms 2-1 GENERAL 2-2 DEFINITIONS |
| 18 | 2-2.1 Symbols and Subscripts Table 2-2.1-1 Symbols |
| 19 | Table 2-2.1-2 Subscripts |
| 20 | Section 3 Power System Measurement Techniques 3-1 INTRODUCTION 3-2 SINGLE-PHASE, TWO-WIRE POWER SYSTEMS 3-3 THREE-PHASE, THREE-WIRE POWER SYSTEMS Figures Figure 3-2-1 Single-Phase, Two-Wire Power Measurement |
| 21 | 3-4 THREE-PHASE, FOUR-WIRE POWER SYSTEMS 3-5 CALCULATION OF PRIMARY ACTIVE AND REACTIVE POWER 3-5.1 Primary Watts |
| 22 | Figure 3-3-1 Three-Phase, Three-Wire Generators |
| 23 | 3-5.2 Primary Vars Figure 3-4-1 Three-Phase, Four-Wire Wye Generator |
| 24 | 3-6 POWER FACTOR 3-6.1 Three-Phase, Three-Wire Power System |
| 25 | 3-6.2 Three-Phase, Four-Wire Power Systems 3-7 EXCITER POWER |
| 26 | 3-7.1 Derivation From Breaker Currents 3-7.2 Derivation From Field Voltage and Current |
| 27 | 3-7.3 Detailed Analysis of Exciter Load |
| 28 | 3-8 AUXILIARY POWER 3-9 ELECTRIC MOTOR POWER MEASUREMENT 3-9.1 Power Meter Method |
| 29 | 3-9.2 Calculated Method |
| 31 | Section 4 Power Meters 4-1 TYPES OF METERS 4-2 CATEGORIES OF INSTRUMENTATION 4-2.1 Test Instruments 4-2.2 Station Instruments 4-2.3 Performance Monitoring Instruments |
| 32 | 4-2.4 Clamp-on Instruments 4-2.5 Uncalibrated Instruments 4-3 WATTMETERS 4-4 WATT-HOUR METERS |
| 33 | 4-5 VARMETERS 4-6 VAR-HOUR METERS 4-7 POWER FACTOR METERS 4-8 CALIBRATION |
| 34 | 4-8.1 Wattmeter and Watt-Hour Meter Calibration 4-8.2 Varmeter and Var‐Hour Meter Calibration |
| 36 | Section 5 Instrument Transformers 5-1 PURPOSE 5-2 VOLTAGE TRANSFORMERS |
| 37 | 5-3 CURRENT TRANSFORMERS 5-4 INSTRUMENT TRANSFORMER CONNECTIONS 5-5 CALIBRATION REQUIREMENTS 5-5.1 VT Calibration |
| 38 | 5-5.2 CT Calibration |
| 39 | 5-5.3 Ratio Error Modeling of Instrument Transformers |
| 40 | 5-6 CORRECTION OF VT ERRORS 5-6.1 VT Burden Measurements 5-6.2 Analytical Calculation of VT Ratio and Phase-Angle Correction Factors |
| 42 | 5-7 VOLTAGE DROP CORRECTIONS FOR VT SECONDARY CIRCUITS 5-8 CORRECTION OF IRON-CORE CT ERRORS 5-8.1 Calculation of CT Phase-Angle Correction Factors |
| 43 | 5-8.2 Demagnetization 5-9 CALCULATION OF PHASE-ANGLE CORRECTION FACTORS 5-10 PRECAUTIONS IN THE USE OF INSTRUMENT TRANSFORMERS 5-11 UTILIZATION OF STATION INSTRUMENT TRANSFORMERS |
| 44 | Section 6 Net Power Output 6-1 INTRODUCTION 6-2 DIRECT MEASUREMENT OF NET POWER 6-3 CALCULATION OF NET POWER 6-3.1 Power Transformer Losses |
| 46 | 6-3.2 Line Losses |
| 47 | 6-4 NET PLANT POWER FACTOR 6-5 POWER RELATIONSHIPS BETWEEN PRIMARY AND SECONDARY WINDINGS OF MAIN POWER TRANSFORMER |
| 49 | Section 7 Test Uncertainty 7-1 UNCERTAINTY CALCULATION REQUIREMENTS 7-1.1 Uncertainty of the Result, UR 7-1.2 Sensitivity, Θ 7-1.3 Systematic Standard Uncertainty |
| 50 | 7-1.4 Random Standard Uncertainty 7-1.5 Other Considerations 7-2 POWER UNCERTAINTY CALCULATION |
| 51 | 7-2.1 Systematic Uncertainty and Correlation |
| 52 | 7-2.2 Random Standard Uncertainty 7-2.3 Gross Power Uncertainty 7-2.4 Corrected Gross Power Uncertainty Table 7-2.3-1 Typical Gross Power Uncertainties for Test Classes Table 7-2.4-1 Gross Power Correction Uncertainties |
| 53 | 7-3 UNCERTAINTY CONSIDERATIONS |
| 54 | Table A-2-1 Sample Wattmeter Data NONMANDATORY APPENDIX A SAMPLE CALCULATION OF CLASS A GROSS GENERATOR OUTPUT DERIVED FROM THREE-PHASE SECONDARY MEASUREMENTS A-1 INTRODUCTION A-2 GENERATOR OUTPUT METERING REQUIREMENTS A-3 CORRECTIONS FOR INSTRUMENT TRANSFORMER BURDENS AND WIRING LOSSES |
| 55 | Figure A-1-1 Example Electrical Single-Line Schematic |
| 56 | Table A-3.1-1 Example VT Burden Measurement Data Table A-3.1-2 Example VT Calibration Data A-3.1 VT Burden Measurements A-3.2 VT Ratio Correction Factors |
| 57 | Table A-3.2-1 VT and CT Ratio and Phase-Angle Correction Factor Results A-3.3 VT Phase-Angle Error A-3.4 CT Ratio Correction Factors A-3.5 CT Phase-Angle Error A-3.6 Phase-Angle Correction Factors |
| 58 | Figure A-3.4-1 Sample CT Ratio Correction Factor Curve A-3.7 VT Voltage Drop Corrections |
| 59 | Figure A-3.4-2 Sample CT Phase-Angle Error Curve Table A-3.7-1 Sample VT Wiring Voltage Drop Corrections A-4 CONVERSION OF SECONDARY SIDE READINGS TO PRIMARY SIDE VALUES |
| 60 | Table A-6-1 Conversion of Secondary Side Readings to Primary Side Values A-5 POWER FACTOR CALCULATION A-6 PHASE ANGLE |
| 61 | NONMANDATORY APPENDIX B SAMPLE CORRECTION OF GROSS GENERATOR OUTPUT TO RATED CONDITIONS B-1 INTRODUCTION B-2 POWER FACTOR CORRECTION B-3 GENERATOR HYDROGEN PRESSURE CORRECTION |
| 62 | Figure B-2-1 Sample Generator Electrical Loss Curve Table B-1-1 Sample Generator Data |
| 63 | Figure B-4-1 Density of Hydrogen/Air Mixture B-4 GENERATOR HYDROGEN PURITY CORRECTION |
| 64 | B-5 CORRECTED GROSS GENERATOR OUTPUT |
| 65 | Figure C-2-1 Farber Plot NONMANDATORY APPENDIX C DETERMINING VT RATIO CORRECTION FACTOR AND PHASE-ANGLE ERROR USING THE FARBER METHOD C-1 INTRODUCTION C-2 DATA AND ANALYSIS METHODOLOGY |
| 67 | Table D-2-1 Uncertainties Associated With Quality of Burden Value NONMANDATORY APPENDIX D ESTIMATING UNCERTAINTIES OF INSTRUMENT TRANSFORMERS D-1 INTRODUCTION D-2 VOLTAGE TRANSFORMERS |
| 68 | Table D-2-2 VT Uncertainty Summary in RCF Units D-3 CURRENT TRANSFORMERS D-4 SUMMARY |
| 69 | Figure D-3-1 Typical Current Transformer Characteristics Table D-3-1 CT Uncertainty Summary in RCF Units |
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