GB/T 20995-2020Static var compensators(SVC). Testing of thyristor valves (English PDF)

1 Scope

This standard specifies the type test, factory test and option test of thyristor valves: These thyristor valves are suitable for parts in power systems

Sub-Static Var Compensation Device (SVC), namely Thyristor Controlled Reactor (TCR), Thyristor Switching Reactor (TSR) and Thyristor Switching Reactor (TSR)

Container (TSC): The requirements of this standard apply to both a single valve unit (single phase) and multiple valve units (multiphase):

Chapter 4~Chapter 7 of this standard details the type test, which is the test used to check whether the valve design meets the specified requirements: Chapter 8 Overview

Describes the factory test, which is the test used to determine the manufacturing quality: Chapter 9 and Chapter 10 detail optional tests, namely type tests and factory tests:

Additional tests other than the test:

2 Normative references

The following documents are indispensable for the application of this document: For dated reference documents, only the dated version applies to this article

Pieces: For undated references, the latest version (including all amendments) applies to this document:

IEC 60060 (all parts) High-voltage test techniques (High-voltage test techniques)

IEC 60060-1 High-voltage test techniques Part 1: General definitions and test requirements (High-voltagetest techniques-

Part 1:Generaldefinitionsandtestrequirements)

IEC 60060-2 High-voltage test technology Part 2: Measurement system (High-voltage test techniques-Part 2: Meas- uringsystems)

IEC 60071 (all parts) Insulation coordination (Insulationco-ordination)

IEC 60071-1:2006 Insulation coordination Part 1: Definitions, principles and rules (Insulationco-ordination-Part 1:

Definitions,principlesandrules)

IEC 60071-1:2006/AMD1:2010

IEC 60270 High-voltage test techniques-Partial discharge measurement (High-voltagetest techniques-Partialdischarge measurements)

IEC 60700-1:2015 Thyristor valves for high-voltage direct current transmission Part 1: Electrical test [Thyristorvalvesforhigh-volt- agedirectcurrent(HVDC)powertransmission-Part 1:Electricaltesting]

3 Terms and definitions

The following terms and definitions apply to this document:

3:1

Thyristorlevel

The component part of the thyristor valve is composed of a thyristor or multiple parallel or anti-parallel thyristors and the auxiliary equipment and electric

The reactor (if any) constitutes:

3:2

Thyristor (series) string

Tandem thyristors in the same direction that constitute the thyristor valve:

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