BS EN 60143-2:2013
$198.66
Series capacitors for power systems – Protective equipment for series capacitor banks
| Published By | Publication Date | Number of Pages |
| BSI | 2013 | 62 |
IEC 60143-2:2012 covers protective equipment for series capacitor banks, with a size larger than 10 Mvar per phase. Protective equipment is defined as the main circuit apparatus and ancillary equipment, which are part of a series capacitor installation, but which are external to the capacitor part itself. The recommendations for the capacitor part are given in IEC 60143-1:2004. The protective equipment is mentioned in Clause 3 and 10.6 of IEC 60143-1:2004. This second edition cancels and replaces the first edition published in 1994. It constitutes a technical revision. The main changes with respect to the previous edition are: – updated with respect to new and revised component standards; – updates with respect to technology changes. Outdated technologies have been removed, i.e. series capacitors with dual self-triggered gaps. New technologies have been added, i.e. current sensors instead of current transformers; – the testing of spark gaps has been updated to more clearly specify requirements and testing procedures. A new bypass making current test replaces the old discharge current test; – Clause 5, Guide, has been expanded with more information about different damping circuits and series capacitor protections. Keywords: protective equipment for series capacitor banks
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 8 | English CONTENTS |
| 10 | 1 Scope |
| 11 | 2 Normative references Figures Figure 1 – Typical nomenclature of a series capacitor installation |
| 13 | 3 Terms and definitions |
| 19 | 4 Quality requirements and tests 4.1 Overvoltage protector |
| 20 | 4.2 Protective spark gap 4.2.1 Purpose 4.2.2 Classification of triggering principles 4.2.3 Tests Figure 2 – Classification of overvoltage protection |
| 23 | Figure 3 – Illustration of waveforms in recovery voltage test |
| 25 | 4.3 Varistor 4.3.1 Purpose 4.3.2 Classification |
| 26 | 4.3.3 Tests |
| 30 | 4.4 Bypass switch 4.5 Disconnectors and earthing switches 4.5.1 Purpose |
| 31 | 4.5.2 Classification 4.5.3 Tests |
| 32 | 4.6 Discharge current-limiting and damping equipment (DCLDE) 4.6.1 Purpose 4.6.2 Classification 4.6.3 Tests |
| 36 | 4.7 Voltage transformer 4.7.1 Purpose 4.7.2 Classification 4.7.3 Tests |
| 37 | 4.8 Current sensors 4.8.1 Purpose 4.8.2 Classification 4.8.3 Current transformer tests 4.8.4 Electronic transformer tests 4.8.5 Optical transducer tests |
| 38 | 4.9 Coupling capacitor 4.9.1 Purpose 4.9.2 Tests 4.10 Signal column 4.10.1 Purpose 4.10.2 Tests 4.11 Fibre optical platform links 4.11.1 Purpose |
| 39 | 4.11.2 Tests 4.12 Relay protection, control equipment and platform-to-ground communication equipment 4.12.1 Purpose 4.12.2 Classification 4.12.3 Tests |
| 40 | 5 Guide 5.1 General 5.2 Specification data for series capacitors |
| 41 | 5.3 Protective spark gap |
| 42 | 5.4 Varistor 5.4.1 General Table 1 – Summary of varistor energy absorption design criteria (example) |
| 43 | 5.4.2 Varistor voltage-current characteristic |
| 44 | 5.4.3 Varistor current and voltage waveforms during a system fault Figure 4 – Typical voltage-current characteristics of one specific metal oxide varistor element (95 mm diameter) |
| 45 | 5.4.4 Comments on varistor definitions and type tests Figure 5 – Current, voltage and energy waveforms for a phase-to-earth fault |
| 48 | 5.5 Bypass switch 5.6 Disconnectors 5.7 Discharge current-limiting and damping equipment 5.7.1 Purpose of the Discharge Current-Limiting and Damping Equipment |
| 49 | 5.7.2 Location of the DCLDE Figure 6 – Conventional location in the bypass branch Figure 7 – DCLDE in series with the capacitor and the parallel connected MOV Figure 8 – DCLDE in series with the capacitor and parallel to the MOV |
| 51 | 5.7.3 Configuration of the DCLDE Figure 9 – Only a discharge current-limiting reactor Figure 10 – Discharge current-limiting reactor connected in parallel with a damping resistor. A varistor is connected in series with the resistor Figure 11 – Discharge current-limiting reactorconnected in parallel with a damping resistor.A small spark gap is connected in series with the resistor |
| 52 | 5.7.4 Miscellaneous comments regarding the DCLDE Figure 12 – Current-limiting and damping equipment with and without damping resistor |
| 53 | 5.8 Voltage transformer 5.9 Current transformer 5.10 Relay protection, control equipment and platform-to-ground communication equipment |
| 55 | 5.11 Protection redundancy Table 2 – Overview of typical series capacitor bank protections |
| 56 | 5.12 Commissioning tests 5.13 Energization tests |
| 58 | Bibliography |
