Thyristor valves for thyristor controlled series capacitors (TCSC) - Electrical testing (IEC 62823:2015/A1:2019)

DAV on 2020-02-28.

Thyristorventile für thyristorgesteuerte Reihenkondensatoren (TCSC) - Elektrische Prüfung (IEC 62823:2015/A1:2019)

Valves à thyristors pour condensateurs série commandés par thyristors (CSCT) - Essai électrique (IEC 62823:2015/A1:2019)

Tiristorski ventili za tiristorsko upravljane zaporedne kondenzatorje (TCSC) - Električno preskušanje (IEC 62823:2015/A1:2019)

General Information

Status
Published
Public Enquiry End Date
19-May-2019
Publication Date
14-Jun-2020
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
12-Mar-2020
Due Date
17-May-2020
Completion Date
15-Jun-2020

Relations

Overview

SIST EN 62823:2016/A1:2020 is a European standard developed by CENELEC that focuses on the electrical testing of thyristor valves used in thyristor controlled series capacitors (TCSC). This standard ensures the reliable and consistent evaluation of thyristor valves, which are critical components in power electronic systems for electrical transmission and distribution. It is harmonized with IEC 62823:2015/A1:2019 and defines rigorous testing methods to verify valve performance under normal and extreme electrical conditions.

This amendment A1, approved in 2020, refines testing procedures and clarifies technical specifications related to valve conduction, capacitive boost operation, and transient overvoltage withstand capability, maintaining the standard’s alignment with the latest industry practices.


Key Topics

  • Thyristor Valve Testing Procedures
    Detailed methods for conducting electrical tests such as capacitive boost operation, lightning impulse tests, and switching impulse tests, ensuring valves meet insulation and voltage withstand requirements.

  • Capacitive Boost Operation Mode
    Mathematical formulas and models describing the thyristor valve current and voltage behavior during capacitive boost conditions, essential for evaluating valve dynamic response.

  • Test Values and Waveshapes
    Defined parameters and waveforms for impulse and AC voltage stresses accurately simulate operational and fault conditions, including standard lightning impulse shaped according to IEC 60060-1.

  • Valve Insensitivity to Electromagnetic Disturbance
    Guidelines to verify the valve's robustness against electromagnetic interference, predominantly using switching impulse tests to assure operational integrity.

  • Atmospheric and Environmental Corrections
    Factors correcting test conditions to account for environmental influences on dielectric performance, such as changes in enclosure altitude or humidity.

  • Test Object Definition Updates
    Clarifications in components like "valve base electronics units" emphasize consistent testing across different valve parts.


Applications

The SIST EN 62823:2016/A1:2020 standard applies predominantly to the design, manufacturing, testing, and quality assurance processes for thyristor valves used in:

  • Power Transmission Systems
    Thyristor controlled series capacitors enhance power flow control and stability in high-voltage AC transmission networks.

  • Series Capacitor Installations
    Improvements in power oscillation damping and mitigation of sub-synchronous resonance through validated thyristor valve performance.

  • Electrical Equipment Certification
    Ensuring compliance with electrical endurance and insulation coordination requirements before field deployment.

  • Substation Equipment Testing Labs
    Standardized test procedures help verification bodies and manufacturers perform consistent and repeatable electrical tests on TCSC components.


Related Standards

  • IEC 62823:2015/A1:2019 – International equivalent providing foundational electrical testing methods for thyristor valves.

  • IEC 60060-1 – Defines standard impulse voltage test procedures referenced for lightning impulse testing in EN 62823.

  • IEC 60071-1 – Addresses insulation coordination principles applicable to selecting test voltages for thyristor valves.

  • EN 61869 Series – Covers instrument transformers and related testing which may interface with thyristor valve systems in power networks.

  • IEC 62271 Series – High-voltage switchgear and controlgear standards related to electrical equipment performance and testing.


Keywords: EN 62823, thyristor valves, TCSC, electrical testing, thyristor controlled series capacitors, power electronics, capacitive boost, lightning impulse test, electromagnetic disturbance, power transmission standards, CENELEC electrical standards.


By adhering to SIST EN 62823:2016/A1:2020, manufacturers and testing facilities ensure that thyristor valves for TCSC are evaluated with rigor and precision, contributing to the safety, reliability, and performance of modern power transmission systems.

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SIST EN 62823:2016/A1:2020
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Frequently Asked Questions

SIST EN 62823:2016/A1:2020 is a amendment published by the Slovenian Institute for Standardization (SIST). Its full title is "Thyristor valves for thyristor controlled series capacitors (TCSC) - Electrical testing (IEC 62823:2015/A1:2019)". This standard covers: DAV on 2020-02-28.

DAV on 2020-02-28.

SIST EN 62823:2016/A1:2020 is classified under the following ICS (International Classification for Standards) categories: 17.220.20 - Measurement of electrical and magnetic quantities; 31.080.20 - Thyristors. The ICS classification helps identify the subject area and facilitates finding related standards.

SIST EN 62823:2016/A1:2020 has the following relationships with other standards: It is inter standard links to SIST EN 62823:2016. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

You can purchase SIST EN 62823:2016/A1:2020 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of SIST standards.

Standards Content (Sample)


SLOVENSKI STANDARD
01-julij-2020
Tiristorski ventili za tiristorsko upravljane zaporedne kondenzatorje (TCSC) -
Električno preskušanje (IEC 62823:2015/A1:2019)
Thyristor valves for thyristor controlled series capacitors (TCSC) - Electrical testing (IEC
62823:2015/A1:2019)
Thyristorventile für thyristorgesteuerte Reihenkondensatoren (TCSC) - Elektrische
Prüfung (IEC 62823:2015/A1:2019)
Valves à thyristors pour condensateurs série commandés par thyristors (CSCT) - Essai
électrique (IEC 62823:2015/A1:2019)
Ta slovenski standard je istoveten z: EN 62823:2015/A1:2020
ICS:
17.220.20 Merjenje električnih in Measurement of electrical
magnetnih veličin and magnetic quantities
31.080.20 Tiristorji Thyristors
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 62823:2015/A1

NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2020
ICS 29.240.99
English Version
Thyristor valves for thyristor controlled series capacitors (TCSC)
- Electrical testing
(IEC 62823:2015/A1:2019)
Valves à thyristors pour condensateurs série commandés Thyristorventile für thyristorgesteuerte
par thyristors (CSCT) - Essai électrique Reihenkondensatoren (TCSC) - Elektrische Prüfung
(IEC 62823:2015/A1:2019) (IEC 62823:2015/A1:2019)
This amendment A1 modifies the European Standard EN 62823:2015; it was approved by CENELEC on 2020-01-08. CENELEC members
are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this amendment the status of a
national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This amendment exists in three official versions (English, French, German). A version in any other language made by translation under the
responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as
the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 62823:2015/A1:2020 E

European foreword
The text of document 22F/518/CDV, future IEC 62823/A1, prepared by SC 22F "Power electronics for
electrical transmission and distribution systems" of IEC/TC 22 "Power electronic systems and
equipment" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2020-10-08
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2023-01-08
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.

Endorsement notice
The text of the International Standard IEC 62823:2015/A1:2019 was approved by CENELEC as a
European Standard without any modification.

IEC 62823 ®
Edition 1.0 2019-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
A MENDMENT 1
AM ENDEMENT 1
Thyristor valves for thyristor controlled series capacitors (TCSC) – Electrical

testing
Valves à thyristors pour condensateurs série commandés par thyristors

(CSCT) – Essai électrique
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.240.99 ISBN 978-2-8322-7599-3

– 2 – IEC 62823:2015/AMD1:2019
© IEC 2019
FOREWORD
This amendment has been prepared by subcommittee 22F: Power electronics for electrical
transmission and distribution systems, of IEC technical committee 22: Power electronic systems
and equipment.
The text of this amendment is based on the following documents:
CDV Report on voting
22F/518/CDV 22F/532/RVC
Full information on the voting for the approval of this amendment can be found in the report on
voting indicated in the above table.
The committee has decided that the contents of this amendment and the base publication will
remain unchanged until the stability date indicated on the IEC website under
"http://webstore.iec.ch" in the data related to the specific publication. At this date, the
publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
_____________
3.23
boost factor
Replace the words "divided by" by the word "and".

Figure 2 – TCSC subsegment
Replace the existing Figure 2 by the following new figure:

IEC 62823:2015/AMD1:2019 – 3 –
© IEC 2019
NOTE Valve arrester is optional.
Figure 2 – TCSC subsegment
Figure 4 – Thyristor valve voltage in a TCSC
Replace the existing Figure 4 by the following new figure:

– 4 – IEC 62823:2015/AMD1:2019
© IEC 2019
Figure 4 – Thyristor valve voltage in a TCSC
4.2.3.1 Capacitive boost operation mode
Replace the existing text by the following new text:
In TCSC capacitive boost operation mode, the TCSC valve current follows the formulation below:
λI⋅
 
n L_peak cosβ
i =−1 ⋅ ⋅ cos(ωt⋅−) ⋅cos(λ⋅ωt⋅ ) , n⋅π − β ≤ (ω ⋅t) ≤ n⋅π + β
( )
 
v N N N
cos(λβ⋅ )
λ −1
 
i = 0 n⋅π + β < (ω ⋅t) < (n + 1)⋅π
...

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