BS EN IEC/IEEE 65700:2018
$198.66
Bushings for DC application
| Published By | Publication Date | Number of Pages |
| BSI | 2018 | 58 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 7 | CONTENTS |
| 11 | FOREWORD |
| 13 | INTRODUCTION |
| 14 | 1 Scope 2 Normative references |
| 15 | 3 Terms, definitions and symbols 3.1 Terms and definitions |
| 17 | 3.2 List of variables |
| 18 | 4 Ratings 4.1 Rated voltages 4.1.1 Rated continuous DC voltage 4.1.2 Rated peak voltage 4.2 Insulation levels 4.3 Rated currents 4.3.1 Pure DC applications |
| 19 | 4.3.2 Combined voltage applications 4.4 Rated frequency 4.5 Pollution parameters |
| 20 | 5 Operating conditions 5.1 General Tables Table 1 – Temperature of ambient air and immersion media (see 5.1) |
| 21 | 5.2 Factors affecting the design, testing and application 5.3 Altitude correction |
| 22 | Figures Figure 1 – Altitude correction factor |
| 23 | 5.4 Interchangeability 6 General requirements 6.1 Electrical requirements 6.2 Mechanical requirements 6.3 Nameplate markings |
| 24 | 7 Test requirements 7.1 General requirements 7.2 Test Conditions 7.2.1 Air temperature 7.2.2 Humidity 7.2.3 Correction factors |
| 25 | 7.3 Test classification 7.3.1 Type (or design) tests |
| 26 | 7.3.2 Routine tests 7.3.3 Special tests 8 Type tests 8.1 Dry power-frequency voltage withstand test with partial discharge measurement 8.1.1 Applicability Table 2 – Type, routine and special tests |
| 27 | 8.1.2 Test method and requirements 8.1.3 Acceptance 8.2 Dry lightning impulse voltage withstand test (BIL) 8.2.1 Applicability 8.2.2 Test method and requirements 8.2.3 Acceptance 8.3 Dry or wet switching impulse voltage withstand test (SIL) 8.3.1 Applicability |
| 28 | 8.3.2 Test method and requirements 8.3.3 Acceptance 8.4 Electromagnetic compatibility tests (EMC) 8.4.1 Emission test 8.4.2 Immunity test 8.5 Temperature rise test 8.5.1 Applicability |
| 29 | 8.5.2 Test method and requirements 8.5.3 Acceptance |
| 30 | 8.6 Cantilever load withstand test 8.6.1 Applicability 8.6.2 Test method and requirements Table 3 – Minimum values of cantilever withstand load |
| 31 | 8.6.3 Acceptance 8.7 Tightness test on liquid-filled, compound-filled and liquid-insulated bushings 8.8 Internal pressure test on gas-filled, gas-insulated and gas-impregnated bushings 8.9 Verification of dimensions 8.10 Draw-lead bushing cap pressure test 8.10.1 Applicability 8.10.2 Test method and requirements 8.10.3 Acceptance 9 Routine tests 9.1 Measurement of dielectric dissipation factor (tan δ) and capacitances 9.1.1 Applicability 9.1.2 Test method and requirements 9.1.3 Acceptance |
| 32 | 9.2 Dry lightning impulse voltage withstand test (BIL) 9.2.1 Applicability 9.2.2 Test method and requirements 9.2.3 Acceptance 9.3 Dry power-frequency voltage withstand test with partial discharge measurement 9.3.1 Applicability 9.3.2 Test method and requirements Table 4 – Maximum values of tan δ and tan δ increase |
| 33 | 9.3.3 Acceptance 9.4 DC applied voltage withstand test with partial discharge measurement 9.4.1 Applicability Table 5 – Maximum values of partial discharge quantity |
| 34 | 9.4.2 Test method and requirements 9.4.3 Acceptance |
| 35 | 9.5 Polarity reversal test with partial discharge measurement 9.5.1 Applicability 9.5.2 Test method and requirements Figure 2 – Polarity reversal test profile |
| 36 | 9.5.3 Acceptance 9.6 Dry Switching impulse withstand test 9.6.1 Applicability |
| 37 | 9.6.2 Test method and requirements 9.6.3 Acceptance 9.7 Test of tap insulation 9.8 Internal pressure test on gas-filled, gas-insulated and gas-impregnated bushings 9.9 Tightness test on liquid-filled, compound-filled and liquid-insulated bushings 9.10 Tightness test on gas-filled, gas-insulated and gas-impregnated bushings 9.11 Tightness test at the flange or other fixing device 9.12 Visual inspection and dimensional check 10 Special tests |
| 38 | 10.1 Artificial pollution test 10.1.1 Applicability 10.1.2 Test method and requirements 10.1.3 Acceptance 10.2 Even wetting DC voltage test 10.2.1 Applicability 10.2.2 Test method and requirements |
| 39 | 10.2.3 Acceptance 10.3 Uneven wetting DC voltage test 10.3.1 Applicability 10.3.2 Test method and requirements 10.3.3 Acceptance |
| 40 | 11 Recommendations for transport, storage, erection, operation and maintenance 11.1 Conditions during transport, storage and installation 11.2 Installation 11.3 Unpacking and lifting 11.4 Assembly 11.4.1 Mounting |
| 41 | 11.4.2 Connections 11.4.3 Final installation inspection 11.5 Operation |
| 42 | 11.6 Maintenance 11.6.1 General 11.6.2 Recommendation for the manufacturer 11.6.3 Recommendations for the user |
| 43 | 11.6.4 Failure report |
| 44 | 12 Safety 12.1 Electrical aspects 12.2 Mechanical aspects 12.3 Thermal aspects 13 Environmental aspects |
| 45 | Annex A (informative) A.1 Bushings used in voltage source converters (VSC) HVDC schemes A.1.1 Introduction |
| 46 | Figure A.1 – Two-level VSC HVDC converter station applied in a bipolar scheme with DC cable transmission |
| 47 | A.1.2 Design Figure A.2 – Multi-level VSC HVDC converter station applied in a monopolar scheme with DC overhead line transmission |
| 48 | A.1.3 Tests A.1.4 Supporting Published Material |
| 49 | Annex B (informative) B.1 Temperature rise test methods for the determination of the equivalent test current B.1.1 Introduction B.2 Basics concerning the losses in distorted operation |
| 50 | B.3 Analytical calculation B.4 Finite element method calculation |
| 51 | B.5 Calculation by enhancement factors as described in IEC 61378–1 |
| 52 | B.6 Examples of calculation Table B.1 – Valve side connected bushing current harmonic spectrum |
| 53 | B.6.1 Calculation based on the analytical method Table B.2 – Calculation based on the analytical method |
| 54 | B.6.2 Calculation based on Finite Element Method Table B.3 – Calculation based on Finite Element Method |
| 55 | B.6.3 Calculation based on the enhancement factor according IEC 61378–1 Table B.4 – Calculation based IEC 61378-1 enhancement factor FCE |
| 56 | B.7 References |
| 57 | Bibliography |
