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BS EN IEC 60076-22-6:2021

BS EN IEC 60076-22-6:2021

$102.76

Power transformers – Power transformer and reactor fittings. Electric fans for transformers

Published By Publication Date Number of Pages
BSI 2021 22
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This part of IEC 60076 covers the electric fans used in the cooling circuits of power transformers and reactors. It applies to electric fans mounted on liquid immersed power transformers according to IEC 60076-1 and reactors according to IEC 60076-6 with and without conservator for indoor or outdoor installation. It outlines the service conditions and the mechanical and electrical requirements that are common to all the equipment.

The electric fans concerned by this document are of the axially operating type and are for use on liquid to air coolers and for blowing out radiators.

This document also outlines the operation requirements specific to each equipment as well as the preferred dimensions relevant for interchangeability and uniform fan assembly and the type and routine tests to be performed.

PDF Catalog

PDF Pages PDF Title
2 undefined
5 Annex ZA(normative)Normative references to international publications with their corresponding European publications
7 English
CONTENTS
8 FOREWORD
10 1 Scope
2 Normative references
11 3 Terms and definitions
4 Service conditions
4.1 General
4.2 Degree of protection of electrical components (IP)
4.3 Corrosion protection
12 5 General characteristics and requirements
5.1 Main components and characteristics
5.1.1 Nameplate and rating plates
5.1.2 Motor drive
13 5.1.3 Connection box
5.1.4 Housing
5.1.5 Fan wheel
5.1.6 Protective grating
14 5.1.7 Materials
5.1.8 Vibration limits
5.2 Supply conditions
5.2.1 Transport and storage
5.2.2 Installation and operation, operational performance
5.2.3 Technical documentation
15 5.3 Performance requirements
5.3.1 General
5.3.2 Rated values
5.3.3 Ambient conditions for rated power and noise
5.4 Tests
5.4.1 General
16 5.4.2 List of tests
5.4.3 Routine tests
5.4.4 Type tests
17 Annex A (normative)Ordering designations
A.1 Minimal ordering designations
A.2 Additional specifications (if necessary)
18 Annex B (informative)Performance of the fans – Typical fan characteristic speed controlled curves
Figures
Figure B.1 – Performance of the fans
19 Annex C (informative)Design examples
Figure C.1 – Fan design example
20 Figure C.2 – Fan design example with guide vane
Table C.1 – Common selection of materials used in the construction
21 Bibliography

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BS EN IEC 60076-22-6:2021
$102.76