BS EN 60099-9:2014
$215.11
Surge arresters – Metal-oxide surge arresters without gaps for HVDC converter stations
| Published By | Publication Date | Number of Pages |
| BSI | 2014 | 94 |
IEC 60099-9:2014 applies to non-linear metal-oxide resistor type surge arresters without spark gaps designed to limit overvoltages in HVDC converter stations of two terminal, multiterminal and back-to-back type up to and including an operating voltage of 1 100 kV. The standard applies in general to porcelain-housed and polymer-housed type arresters but also to gas-insulated metal enclosed arresters (GIS-arresters) solely used as d.c. bus and d.c. line/cable arresters. Arresters for voltage source converters are not covered. Arresters applied on the a.c. systems at the converter station and subjected to power-frequency voltage of 50 or 60 Hz principally without harmonics are tested as per IEC 60099-4. The arresters on a.c.-filters are tested according to this standard. Keywords: testing of gapless metal-oxide surge arrestors for HVDC converter stations
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 4 | Foreword Endorsement notice |
| 5 | Annex ZA (normative) Normative references to international publications with their corresponding European publications |
| 7 | English CONTENTS |
| 12 | 1 Scope 2 Normative references |
| 13 | 3 Terms and definitions |
| 22 | 4 Typical HVDC converter station schemes, arrester types, locations and operating voltage |
| 23 | Figures Figure 1 – Single line diagram of typical converter station with two 12-pulse converter bridges per pole |
| 24 | Figure 2 – Single line diagram of typical converter station with one 12-pulse converter bridge per pole |
| 25 | Figure 3 – Single line diagram of typical capacitor commutated converter (CCC) pole with two 12-pulse converters in series |
| 26 | Figure 4 – Typical continuous operating voltages for different arresters – low-frequency modelling (location as per Figures 1 to 3, fundamental frequency 50 Hz) |
| 27 | 5 Identification and classification 5.1 Arrester identification Figure 5 – Typical continuous operating voltages for different arresters – high-frequency modelling (location as per Figures 1 to 3, fundamental frequency 50 Hz) |
| 28 | 5.2 Arrester classification 6 Service conditions 6.1 Normal service conditions 6.2 Abnormal service conditions |
| 29 | 7 Requirements 7.1 Insulation withstand of the arrester housing 7.2 Reference voltage 7.3 Residual voltage |
| 30 | 7.4 Internal partial discharge 7.5 Seal leak rate 7.6 Current distribution in a multi-column arrester and between matched arresters 7.7 Long term stability under continuous operating voltage 7.8 Repetitive charge transfer withstand 7.9 Thermal energy capability |
| 31 | 7.10 Short-circuit performance 7.11 Requirements on internal grading components 7.12 Mechanical loads 7.12.1 General 7.12.2 Bending moment 7.12.3 Resistance against environmental stresses 7.12.4 Insulating base |
| 32 | 7.12.5 Mean value of breaking load (MBL) 7.13 Electromagnetic compatibility 7.14 End of life 8 General testing procedure 8.1 Measuring equipment and accuracy 8.2 Reference voltage measurements 8.3 Test samples 8.3.1 General |
| 33 | 8.3.2 Arrester section requirements |
| 34 | 9 Type tests (design tests) 9.1 General |
| 35 | 9.2 Insulation withstand test on the arrester housing 9.2.1 General 9.2.2 Tests on individual unit housings 9.2.3 Tests on complete arrester housing assemblies 9.2.4 Ambient air conditions during tests |
| 36 | 9.2.5 Wet test procedure 9.2.6 Lightning impulse voltage test 9.2.7 Switching impulse voltage test |
| 37 | 9.2.8 Power-frequency voltage test 9.3 Short-circuit tests |
| 38 | 9.4 Internal partial discharge tests |
| 39 | 9.5 Test of the bending moment 9.5.1 Test on porcelain-housed arresters |
| 40 | 9.5.2 Test on polymer-housed arresters |
| 43 | Figure 6 – Thermomechanical test |
| 44 | Figure 7 – Example of the test arrangement for the thermomechanical test and direction of the cantilever load |
| 45 | Figure 8 – Water immersion |
| 46 | 9.6 Environmental tests 9.6.1 General 9.6.2 Overview |
| 47 | 9.6.3 Sample preparation 9.6.4 Test procedure 9.6.5 Test evaluation 9.7 Weather ageing test 9.7.1 General 9.7.2 Test specimens 9.7.3 Test procedure |
| 48 | 9.7.4 Evaluation of the test |
| 49 | 9.8 Seal leak rate test 9.8.1 General 9.8.2 Overview 9.8.3 Sample preparation 9.8.4 Test procedure 9.8.5 Test evaluation 9.9 Radio interference voltage (RIV) test |
| 51 | 9.10 Residual voltage test 9.10.1 General |
| 52 | 9.10.2 Steep current impulse residual voltage test 9.10.3 Lightning impulse residual voltage test |
| 53 | 9.10.4 Switching impulse residual voltage test 9.11 Test to verify long term stability under continuous operating voltage 9.11.1 General |
| 54 | 9.11.2 Test procedure for arresters subjected to voltage reversal |
| 55 | Figure 9 – Test cycle for accelerated ageing test with polarity reversals, method a) |
| 56 | 9.11.3 Test procedure for arresters not subjected to voltage reversal |
| 57 | 9.12 Test to verify the repetitive charge transfer rating, Qrs 9.12.1 General |
| 58 | 9.12.2 Test procedure 9.12.3 Test evaluation |
| 59 | 9.12.4 Rated values of repetitive charge transfer rating, Qrs 9.13 Heat dissipation behaviour of test sample 9.13.1 General 9.13.2 Arrester section requirements 9.13.3 Procedure to verify thermal equivalency between arrester and arrester section |
| 60 | 9.14 Test to verify the thermal energy rating, Wth 9.14.1 General 9.14.2 Arrester section requirements 9.14.3 Test procedure |
| 61 | 9.15 Test to verify the dielectric withstand of internal components 9.15.1 General |
| 62 | 9.15.2 Test procedure 9.15.3 Test evaluation 9.16 Test of internal grading components 9.16.1 Test to verify long term stability under continuous operating voltage |
| 63 | 9.16.2 Thermal cyclic test |
| 64 | 10 Routine tests and acceptance test 10.1 Routine tests |
| 65 | 10.2 Acceptance tests 10.2.1 Standard acceptance tests 10.2.2 Special thermal stability test 11 Test requirements on different types of arresters 11.1 General 11.2 Valve arrester (V) 11.2.1 General 11.2.2 Continuous operating voltage |
| 66 | 11.2.3 Equivalent continuous operating voltage Figure 10 – Operating voltage of a valve arrester (V) (rectifier operation)and definition of PCOV and CCOV |
| 67 | 11.2.4 Type tests Tables Table 1 – Summary of type tests – 1 |
| 68 | 11.2.5 Routine and acceptance tests 11.3 Bridge arrester and HV and LV converter unit arresters (B, CH, CL) 11.3.1 Continuous operating voltage Figure 11 – Operating voltage of a bridge arrester and definition of DCOV, PCOV and CCOV |
| 69 | 11.3.2 Equivalent continuous operating voltage 11.3.3 Type tests 11.3.4 Routine and acceptance tests 11.4 Converter unit arrester (C) 11.4.1 General 11.4.2 Continuous operating voltage 11.4.3 Equivalent continuous operating voltage |
| 70 | 11.4.4 Type tests 11.4.5 Routine and acceptance tests 11.5 Mid-point d.c. bus arrester, mid-point bridge arresters and arrester between converters (M, MH, ML, CM) 11.5.1 Continuous operating voltage 11.5.2 Equivalent continuous operating voltage |
| 71 | 11.5.3 Type tests 11.5.4 Routine and acceptance tests 11.6 Converter unit d.c. bus arrester (CB) 11.6.1 Continuous operating voltage 11.6.2 Equivalent continuous operating voltage |
| 72 | 11.6.3 Type tests 11.6.4 Routine and acceptance tests 11.7 DC bus and d.c. line/cable arrester (DB, DL/DC) 11.7.1 General 11.7.2 Continuous operating voltage 11.7.3 Equivalent continuous operating voltage 11.7.4 Type tests |
| 73 | 11.7.5 Routine and acceptance tests |
| 74 | 11.8 Neutral bus arresters (EB, E1, E) 11.8.1 Continuous operating voltage 11.8.2 Equivalent continuous operating voltage 11.8.3 Type tests Table 2 – Summary of type tests – 2 |
| 75 | 11.8.4 Routine and acceptance tests 11.9 DC and AC filter arresters (FA, FD) 11.9.1 Continuous operating voltage 11.9.2 Equivalent continuous operating voltage |
| 76 | Figure 12 – Plot showing the relative duration of voltage above certain amplitudes |
| 77 | 11.9.3 Type tests 11.9.4 Routine and acceptance tests 11.10 Electrode line and metallic return arresters (EL, EM) 11.10.1 Continuous operating voltage 11.10.2 Equivalent continuous operating voltage 11.10.3 Type tests 11.10.4 Routine and acceptance tests 11.11 Smoothing reactor arrester (DR) 11.11.1 General 11.11.2 Continuous operating voltage 11.11.3 Equivalent continuous operating voltage 11.11.4 Type tests 11.11.5 Routine and acceptance tests |
| 78 | 11.12 Capacitor arrester (CC) 11.12.1 General 11.12.2 Continuous operating voltage 11.12.3 Equivalent continuous operating voltage 11.12.4 Type tests 11.12.5 Routine and acceptance tests 11.13 Transformer valve winding arrester (T) 11.13.1 General |
| 79 | 11.13.2 Continuous operating voltage 11.13.3 Equivalent continuous operating voltage 11.13.4 Type tests 11.13.5 Routine and acceptance tests |
| 80 | Annex A (normative) Test to verify thermal equivalency between complete arrester and arrester section |
| 82 | Annex B (normative) Determination of the start temperature in the thermal recovery test |
| 83 | Annex C (normative) Mechanical considerations C.1 Test of bending moment Figure C.1 – Bending moment – multi-unit surge arrester |
| 84 | C.2 Seismic test C.3 Definition of mechanical loads |
| 85 | Figure C.2 – Definitions of mechanical loads |
| 86 | C.4 Definition of seal leak rate C.5 Calculation of wind-bending-moment Figure C.3 – Surge arrester unit |
| 87 | C.6 Procedures of tests of bending moment for porcelain and polymer-housedarresters Figure C.4 – Surge-arrester dimensions |
| 88 | Figure C.5 – Flow chart of bending moment test procedures |
| 89 | Annex D (informative) Different circuit configurations Figure D.1 – Single line diagram of CSCC converter station with two 12-pulse converters in series |
| 90 | Figure D.2 – Single line diagram of back-to-back converter station with two 12-pulse converters in series |
| 91 | Bibliography |
