BS EN IEC 62146-2:2023
Capacitors for high‑voltage alternating current circuit‑breakers - TRV capacitors

Standard No.

BS EN IEC 62146-2:2023

Release Date

2023

Published By

British Standards Institution (BSI)

Latest

BS EN IEC 62146-2:2023

Scope

This part of IEC 62146 is applicable to TRV capacitors used on high-voltage alternating current circuit-breakers with rated voltages above 100 kV with 50 Hz or 60 Hz. circuit-breakers, or immersed inside the circuit-breaker, or freestanding close to the circuit- breaker. Their function is to limit the transient recovery voltage (TRV) and the rate of rise of recovery voltage (RRRV) on the circuit-breaker. Capacitors in compliance with this document can be used as TRV capacitor. This document applies to TRV capacitors falling into one or both of the following categories for: – mounting on or close to air insulated switchgear (AIS) dead tank and live tank circuit- breakers, or – mounting on gas insulated switchgear (GIS) circuit-breakers. The testing for each of the above applications is in some cases different. This document does not apply to grading capacitors installed in parallel to the chambers of the circuit-breaker, which are specified in IEC 62146-1. This document does not apply to capacitors not directly associated with high-voltage alternating current circuit-breakers. The object of this document is: – to define uniform rules regarding performances, testing and rating – to define specific safety rules – to provide a guidance for installation and operation The TRV capacitor is a sub-component for the circuit-breaker and is specified in accordance with the circuit-breaker specifications according to IEC 62271-1, IEC 62271-100, and if applicable to IEC 62271-203. insulators follow IEC 61462 or IEC 62155. Other housings can be used if they can sustain applicable type tests according to IEC 61462 and IEC 62155.

BS EN IEC 62146-2:2023 Referenced Document

• IEC 60060-1:2010 High-voltage test techniques - Part 1: General definitions and test requirements
• IEC 60358-1:2012 Coupling capacitors and capacitor dividers - Part 1: Common clauses
• IEC 60871-1:2014 Shunt capacitors for AC power systems having a rated voltage above 1000 V - Part 1: General
• IEC 61462:2007 Composite hollow insulators - Pressurized and unpressurized insulators for use in electrical equipment with rated voltage greater than 1000 V - Definitions, test methods, acceptance criteria and design recommendations
• IEC 62146-1:2013 Grading capacitors for high-voltage alternating current circuit-breakers - Part 1: General
• IEC 62146-1:2013/AMD1:2016 Amendment 1 - Grading capacitors for high-voltage alternating current circuit-breakers - Part 1: General
• IEC 62155:2003 Hollow pressurized and unpressurized ceramic and glass insulators for use in electrical equipment with rated voltages greater than 1000 V
• IEC 62271-100:2021 High-voltage switchgear and controlgear - Part 100: Alternating-current circuit-breakers
• IEC 62271-1:2017 High-voltage switchgear and controlgear - Part 1: Common specifications for alternating current switchgear and controlgear
• IEC 62271-1:2017/AMD1:2021 Amendment 1 - High-voltage switchgear and controlgear - Part 1: Common specifications for alternating current switchgear and controlgear
• IEC GUIDE 109 Environmental aspects - Inclusion in electrotechnical product standards

BS EN IEC 62146-2:2023 history

• 2023 BS EN IEC 62146-2:2023 Capacitors for high‑voltage alternating current circuit‑breakers - TRV capacitors