BS EN 62823:2015
$189.07
Thyristor valves for thyristor controlled series capacitors (TCSC). Electrical testing
| Published By | Publication Date | Number of Pages |
| BSI | 2015 | 46 |
IEC 62823:2015 defines routine and type tests on thyristor valves used in thyristor controlled series capacitor (TCSC) installations for a.c. power transmission. The tests specified in this standard are based on air insulated valves operating in capacitive boost mode or bypass mode.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 4 | European foreword Endorsement notice |
| 5 | Annex ZA (normative) Normative references to international publications with their corresponding European publications |
| 6 | English CONTENTS |
| 9 | FOREWORD |
| 11 | 1 Scope 2 Normative references 3 Terms and definitions |
| 14 | 4 TCSC valve and valve operation in general 4.1 TCSC installation and TCSC valve |
| 15 | Figures Figure 1 – Typical connection and nomenclature of a TCSC installation Figure 2 – TCSC subsegment |
| 16 | 4.2 TCSC valve current and voltage at capacitive boost operation 4.2.1 General 4.2.2 Waveshapes of valve current and voltage in capacitive boost operation Figure 3 – TCSC steady state waveforms for control angle α and conduction interval σ |
| 17 | 4.2.3 Formulas for TCSC valve current and voltage stresses calculation Figure 4 – Thyristor valve voltage in a TCSC |
| 19 | 4.3 Typical operating pattern of TCSC installation 5 General requirements 5.1 Guidelines for the performance of type tests 5.1.1 Evidence in lieu Figure 5 – Example of operating range diagram for TCSC |
| 20 | 5.1.2 Sequence of tests 5.1.3 Ambient temperature for testing 5.1.4 Frequency for testing 5.1.5 Test reports 5.2 Test conditions for dielectric tests 5.2.1 General 5.2.2 Treatment of redundancy in dielectric tests |
| 21 | 5.2.3 Atmospheric correction factor 5.3 Test conditions for operational tests 5.3.1 General 5.3.2 Treatment of redundancy in operational tests |
| 22 | 5.4 Criteria for successful type testing 5.4.1 General 5.4.2 Criteria applicable to valve levels |
| 23 | 5.4.3 Criteria applicable to the valve as a whole 6 Summary of tests Tables Table 1 – Valve level faults permitted during type tests |
| 24 | 7 Dielectric tests between valve terminals and valve enclosure 7.1 Purpose of tests Table 2 – List of tests |
| 25 | 7.2 Test object 7.3 Test requirements 7.3.1 AC test |
| 26 | 7.3.2 Lightning impulse test 8 Dielectric tests between valve terminals 8.1 Purpose of tests 8.2 Test object |
| 27 | 8.3 Test requirements 8.3.1 AC test |
| 28 | 8.3.2 Switching impulse test 9 Periodic firing and extinction tests 9.1 Purpose of tests 9.2 Test object |
| 29 | 9.3 Test requirements 9.3.1 General 9.3.2 Maximum continuous capacitive boost test |
| 30 | 9.3.3 Maximum temporary capacitive boost test 9.3.4 Minimum capacitive boost test |
| 31 | 9.3.5 Operation at bypass |
| 33 | 10 Fault current tests 10.1 Purpose of tests 10.2 Test object 10.3 Test requirements 10.3.1 Fault current without subsequent blocking 10.3.2 Fault current with subsequent blocking |
| 34 | 11 Test for valve insensitivity to electromagnetic disturbance 11.1 Purpose of tests 11.2 Test object 11.3 Test requirements 12 Testing of special features 12.1 Purpose of tests |
| 35 | 12.2 Test object 12.3 Test requirements 13 Routine tests 13.1 General 13.2 Visual inspection 13.3 Connection check 13.4 Voltage grading circuit check 13.5 Voltage withstand check 13.6 Partial discharge tests |
| 36 | 13.7 Check of auxiliaries 13.8 Firing check 13.9 Cooling system pressure test 14 Presentation of type test results |
| 37 | Annex A (informative) TCSC valve operating and rating considerations A.1 Overview A.2 TCSC characteristics Table A.1 – Peak and RMS voltage relationships |
| 38 | A.3 Operating range Figure A.1 – TCSC power frequency steady state apparent reactance characteristics according to Formula (A.1) with λ = 2,5 |
| 39 | A.4 Reactive power rating A.5 Power oscillation damping (POD) A.6 SSR mitigation |
| 40 | A.7 Harmonics A.8 Control interactions between TCSCs in parallel lines A.9 Operating range, overvoltages and duty cycles A.9.1 Operating range A.9.2 Transient overvoltages |
| 41 | A.9.3 Duty cycles |
| 42 | Annex B (informative) Valve component fault tolerance |
| 43 | Bibliography |
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BS EN 62823:2015+A1:2020
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