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BS EN IEC 62271-110:2023 – TC

BS EN IEC 62271-110:2023 – TC

$217.84

Tracked Changes. High-voltage switchgear and controlgear – Inductive load switching

Published By Publication Date Number of Pages
BSI 2023 80
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IEC 62271-110:2023 is available as IEC 62271-110:2023 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 62271-110:2023 is applicable to AC switching devices designed for indoor or outdoor installation, for operation at frequencies of 50 Hz and 60 Hz on systems having voltages above 1 000 V and applied for inductive current switching. It is applicable to switching devices (including circuit-breakers in accordance with IEC 62271-100) that are used to switch high?voltage motor currents and shunt reactor currents and also to high-voltage contactors used to switch high-voltage motor currents as covered by IEC 62271-106. This fifth edition cancels and replaces the fourth edition published in 2017. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: references to IEC 62271-100 and IEC 62271-106 have been updated to the latest editions.

PDF Catalog

PDF Pages PDF Title
1 30473320
45 A-30454417
46 undefined
49 Annex ZA (normative)Normative references to international publicationswith their corresponding European publications
50 Blank Page
51 English
CONTENTS
53 FOREWORD
55 1 Scope
2 Normative references
56 3 Terms and definitions
57 4 Type tests
4.1 General
4.2 Miscellaneous provisions for inductive load switching tests
58 4.3 High-voltage motor current switching tests
4.3.1 Applicability
4.3.2 General
59 4.3.3 Characteristics of the supply circuits
Figures
Figure 1 – Motor switching test circuit and summary of parameters
60 4.3.4 Characteristics of the load circuit
4.3.5 Test voltage
61 4.3.6 Test-duties
4.3.7 Test measurements
4.3.8 Behaviour and condition of switching device
Tables
Table 1 – Test-duties at motor current switching tests
62 4.3.9 Test report
63 4.4 Shunt reactor current switching tests
4.4.1 Applicability
Figure 2 – Illustration of voltage transients at interruption of inductive current for first phase clearing in a three-phase non-effectively earthed circuit
64 4.4.2 General
4.4.3 Test circuits
Table 2 – In-service load circuit configurations
65 Figure 3 – Reactor switching test circuit – Three-phase test circuit for in-service load circuit configurations 1 and 2 (Table 2)
66 Figure 4 – Reactor switching test circuit – Single-phase test circuit for in-service load circuit configurations 1, 2 and 4 (Table 2)
67 4.4.4 Characteristics of the supply circuit
4.4.5 Characteristics of the connecting leads
4.4.6 Characteristics of the load circuits
Figure 5 – Reactor switching test circuit – Three-phase test circuit for in-service load circuit configuration 3 (Table 2)
68 Table 3 – Values of prospective transient recovery voltages – Rated voltages 12 kV to 170 kV for effectively and non-effectively earthed systems – Switching shunt reactors with isolated neutrals (Table 2: Inservice load circuit configuration 1)
69 Table 4 – Values of prospective transient recovery voltages – Rated voltages 100 kV to 1  200 kV for effectively earthed systems – Switching shunt reactors withearthed neutrals (See Table 2: Inservice load circuit configuration 2)
70 Table 5 – Values of prospective transient recovery voltages – Rated voltages 12 kV to 52 kV for effectively and non-effectively earthed systems – Switching shunt reactors with isolated neutrals (see Table 2: Inservice load circuit configuration 3)
71 Table 6 – Values of prospective transient recovery voltages – Rated voltages 12 kV to 52 kV for effectively and non-effectively earthed systems – Switching shunt reactors with earthed neutrals (see Table 2: Inservice load circuit configuration 4)
Table 7 – Load circuit 1 test currents
72 4.4.7 Earthing of the test circuit
4.4.8 Test voltage
4.4.9 Test-duties
Table 8 – Load circuit 2 test currents
73 Table 9 – Test-duties for reactor current switching tests
75 Figure 6 – Illustration of voltage transients at interruption of inductive current for a single-phase test
76 Annex A (normative) Calculation of t3 values
78 Bibliography

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BS EN IEC 62271-110:2023 - TC
$217.84