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BS EN IEC 60076-22-8:2021

$142.49

Power transformers – Power transformer and reactor fittings. Devices suitable for use in communication networks

Published By Publication Date Number of Pages
BSI 2021 28
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This part of IEC 60076-22 applies to a selection of accessories and fittings mounted on liquid immersed power transformers according to IEC 60076-1 and reactors according to IEC 60076-6 with or without conservator for indoor or outdoor installation. It outlines the operation requirements specific to each device as well as the data made available to the communication network and the type and routine test to be performed. The communication network is not part of the scope of this standard.

PDF Catalog

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 INTRODUCTION
12 1 Scope
2 Normative references
3 Terms and definitions
13 4 General requirements
4.1 Standard compliance
4.2 Modbus requirements
14 4.3 Type tests for EMC
4.3.1 Emission
4.3.2 Immunity
4.4 Additional requirements
4.4.1 Terminals
4.4.2 Signal and control ports
Table 1 – Summary of Modbus parameters
15 4.5 Cybersecurity
5 Power supply
6 Devices
6.1 Gas and liquid actuated relays (Buchholz relays)
6.1.1 General
6.1.2 4 mA to 20 mA output
6.1.3 Modbus output
16 6.1.4 Tests
6.2 Protective relays for hermetically sealed liquid-immersed equipment
6.2.1 General
6.2.2 4 mA to 20 mA output
6.2.3 Modbus output
6.2.4 Tests
17 6.3 Direct reading dial type liquid level indicators
6.3.1 General
6.3.2 4 mA to 20 mA output
6.3.3 Modbus output
6.3.4 Tests
6.4 Pressure relief devices with continuous pressure monitoring
6.4.1 General
18 6.4.2 4 mA to 20 mA output
6.4.3 Modbus output
6.4.4 Routine test
6.5 Electronic pressure and pressure rise monitoring systems
6.5.1 General
6.5.2 4 mA to 20 mA output
6.5.3 Modbus output
19 6.5.4 Tests
Figure 1 – Pressure rise response curves for oil (left) or gas (right) space applications
20 6.6 Direct reading mechanical dial type liquid temperature indicators
6.6.1 General
6.6.2 4 mA to 20 mA output
6.6.3 Modbus output
6.6.4 Routine tests
6.7 Direct reading mechanical dial type winding temperature indicators
6.7.1 General
6.7.2 4 mA to 20 mA output
21 6.7.3 Modbus output
6.7.4 Routine tests
6.8 Electrical and electronic liquid temperature measuring devices
6.8.1 General
6.8.2 4 mA to 20 mA output
6.8.3 Modbus output
6.8.4 Tests
22 6.9 Electrical and electronic winding temperature simulating devices
6.9.1 General
6.9.2 4 mA to 20 mA output
6.9.3 Modbus output
6.9.4 Tests
23 6.10 Dehydrating breathers, self-regenerating types
6.10.1 General
6.10.2 4 mA to 20 mA output
24 6.10.3 Modbus output
6.10.4 Routine tests
6.11 Dissolved gas analysis devices (DGA devices)
6.11.1 General
6.11.2 4 mA to 20 mA output
25 6.11.3 Modbus output
6.11.4 Tests
26 Bibliography
BS EN IEC 60076-22-8:2021
$142.49