BS EN IEC 62271-203:2022

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High-voltage switchgear and controlgear – AC gas-insulated metal-enclosed switchgear for rated voltages above 52 kV

Published By	Publication Date	Number of Pages
BSI	2022	84

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Description

This part of IEC 62271 specifies requirements for gas-insulated metal-enclosed switchgear in which the insulation is obtained, at least partly, by an insulating gas or gas mixture other than air at atmospheric pressure, for alternating current of rated voltages above 52 kV, for indoor and outdoor installation, and for service frequencies up to and including 60 Hz. For the purpose of this document, the terms “GIS” and “switchgear” are used for “gas-insulated metal-enclosed switchgear”. The gas-insulated metal-enclosed switchgear covered by this document consists of individual components intended to be directly connected together and able to operate only in this manner. This document completes and amends, if applicable, the various relevant standards applying to the individual components constituting GIS.

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PDF Pages	PDF Title
2	undefined
5	Annex ZA (normative)Normative references to international publicationswith their corresponding European publications
7	English CONTENTS
9	FOREWORD
11	1 Scope 2 Normative references
12	3 Terms and definitions
15	4 Normal and special service conditions
16	5 Ratings Tables Table 1 – Reference table of service conditions relevant to GIS
17	Table 2 – Rated insulation levels for rated voltagesfor equipment of range I (245 kV and below)
18	Table 3 – Rated insulation levels for rated voltages for equipment of range II(above 245 kV)
19	6 Design and construction
24	Figures Figure 1 – Pressure coordination
25	Table 4 – Performance criteria
29	Figure 2 – Example of arrangement of enclosures and gas compartments
32	7 Type tests
33	Table 5 – Type tests
36	Table 6 – Test voltage for measuring PD intensity
46	8 Routine tests
49	9 Guide to the selection of switchgear and controlgear (informative) 10 Information to be given with enquiries, tenders and orders (informative) 11 Transport, storage, installation, operating instructions and maintenance
53	Table 7 – On-site test voltages
55	12 Safety
56	13 Influence of the product on the environment
57	Annexes Annex A (normative) Test procedure for dielectric test on three-phase encapsulated GIS, range II (above 245 kV) Table A.1 – Switching impulse test conditions above 245 kV
58	Annex B (normative) Methods for testing gas-insulated metal-enclosed switchgear under conditions of arcing due to an internal fault
61	Annex C (informative) Technical and practical considerations of site testing
66	Annex D (informative) Calculation of pressure rise due to an internal fault
67	Annex E (informative) Information to be given with enquiries, tenders and orders Table E.1 – Normal and special service conditions
68	Table E.2 – Ratings
69	Table E.3 – Design and construction
70	Table E.4 – Bus ducts Table E.5 – Bushing
71	Table E.6 – Cable connection Table E.7 – Transformer connection Table E.8 – Current transformer Table E.9 – Inductive voltage transformer
72	Table E.10 – Documentation for enquiries and tenders
73	Annex F (informative) Service continuity
76	Figure F.1 – MRE1X (e.g. repair of disconnector to busbar) Figure F.2 – MRE00 (e.g. during visual inspection)
77	Figure F.3 – MRE01 (e.g. repair of circuit-breaker) Figure F.4 – MRE11 (e.g. repair of disconnector)
78	Figure F.5 – MRE11 (e.g. extension of switchgear with a feeder bay) Figure F.6 – MRE13 (e.g. repair of disconnector)
79	Figure F.7 – MRE2X (e.g. on-site dielectric test of busbar section A) Figure F.8 – MRE2X (e.g. on-site dielectric test of busbar section 1)
80	Figure F.9 – MRE00 (e.g. repair of circuit-breaker)
81	Annex G (informative) List of notes concerning certain countries
82	Bibliography

Additional information

Status	Definitive
Pages	84
Publication Date	2024-05-22
ISBN	978 0 539 06756 9
Standard Number	BS EN IEC 62271-203:2022
Title	High-voltage switchgear and controlgear – AC gas-insulated metal-enclosed switchgear for rated voltages above 52 kV
Identical National Standard Of	EN 62271-203 Ed.3.0, IEC 62271-203 Ed.3.0
Replaces	BS EN 62271-203:2012
Descriptors	High-voltage equipment, Dielectric-strength tests, Switchgear, Watertightness tests, Rated current, Testing conditions, Insulating enclosures, Electric enclosures, Electrical equipment, Safety devices, Type testing, Artificial weathering tests, Leak tests, Rated voltage, Design, Electrical protection equipment, Non-destructive testing, Pressure testing, Short-circuit current tests, Rated frequencies, Relief valves, Protected electrical equipment, Temperature rise, Electrical testing, Marking, Gases, Type p protected electrical equipment, Circuits, Thermal testing, Impulse-voltage tests, Endurance testing, Ratings, Selection, Verification, Field testing, Earthing, Test equipment, Electric control equipment
Publisher	BSI
Committee	PEL/17
ICS Codes	29.130.10 - High voltage switchgear and controlgear

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