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IEC 60076-22-2
Edition 1.0 2019-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Power transformers –
Part 22-2: Power transformer and reactor fittings – Removable radiators
Transformateurs de puissance –
Partie 22-2: Accessoires pour transformateurs de puissance et bobines
d'inductance – Radiateurs détachables
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IEC 60076-22-2
Edition 1.0 2019-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Power transformers –
Part 22-2: Power transformer and reactor fittings – Removable radiators
Transformateurs de puissance –
Partie 22-2: Accessoires pour transformateurs de puissance et bobines
d'inductance – Radiateurs détachables
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.180 ISBN 978-2-8322-5669-5
– 2 – IEC 60076-22-2:2019 © IEC 2019
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 General requirements . 7
4.1 General . 7
4.2 External corrosion protection . 7
4.3 Internal corrosion protection . 7
4.4 Insulating liquid characteristics . 7
5 General characteristics and requirements . 7
5.1 Main components . 7
5.2 Radiator types defined in this document . 8
5.3 Materials . 8
5.4 Dimensions and tolerances . 8
5.5 Preparation for transport and storage . 9
5.6 Identification of radiators. 9
6 Tests . 9
6.1 Routine tests. 9
6.1.1 Tightness tests . 9
6.1.2 Surfaces . 10
6.2 Type tests . 10
6.2.1 Cooling performance . 10
6.2.2 Vacuum resistance type test . 17
7 Dimensions and drawings . 18
Annex A (normative) Alternative radiator designs – Dimensions and drawings . 20
Bibliography . 25
Figure 1 – Radiators' dissipation diagram . 11
Figure 2 – Coefficient KN . 12
Figure 3 – Coefficient KP . 12
Figure 4 – Coefficient KDH . 13
Figure 5 – Test layout . 15
Figure 6 – Type FG . 18
Figure 7 – Type FR . 19
Figure A.1 – Type FA . 20
Figure A.2 – Type FG-L . 21
Figure A.3 – Type FG-R . 22
Figure A.4 – Type FAR . 23
Figure A.5 – Type FG1A (with flanges) . 24
Table 1 – Radiator characteristics form . 9
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
POWER TRANSFORMERS –
Part 22-2: Power transformer and reactor fittings –
Removable radiators
FOREWORD
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International Standard IEC 60076-22-2 has been prepared by IEC technical committee 14:
Power transformers.
The text
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