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BS EN 50708-2-4:2022

BS EN 50708-2-4:2022

$86.31

Power transformers. Additional European requirements – Medium power transformer – Special tests

Published By Publication Date Number of Pages
BSI 2022 12
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This document describes the special tests for Medium Power Transformers ≤ 3150 kVA compliant with the EN 50708 2 series: – for corrugated tank for liquid immersed transformers, – for the method of measurement of losses for one winding in Highest Voltage (HV) and windings in Lowest Voltage (LV) for liquid immersed and dry type transformers.

PDF Catalog

PDF Pages PDF Title
2 undefined
7 1 Scope
2 Normative references
3 Terms and definitions
4 Service conditions
5 Special test for corrugated tank
5.1 General information
5.2 Temperature variation
8 5.3 Sealing temperature
5.4 Calculation of the liquid volume variation
5.5 Test procedure
5.5.1 General
5.5.2 Measurement of pressure range
9 5.5.3 Endurance test
5.5.4 Leakage test
5.5.5 Evaluation of the tests
6 Method of measurement of losses on double LV windings
6.1 Introduction
6.2 Limits of this method
6.3 Resistance measurement
10 6.4 Measurement of load losses and short circuit impedance

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BS EN 50708-2-4:2022
$86.31