ДСТУ EN 61378-1:2016 Трансформаторы преобразовательные. Часть 1. Трансформаторы промышленного назначения (EN 61378-1:2011, IDT)

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EN 61378-1:2011

Convertor transformers — Part 1: Transformers for industrial applications

прийнято як національний стандарт
методом «підтвердження» за позначенням
Відповідає офіційному тексту

ДСТУ EN 61378-1:2016
 (EN 61378-1:2011, IDТ)

Трансформатори перетворювальні. Частина 1. Трансформатори
промислової призначеності

З наданням чинності від 2016-09-15

CONTENTS

FOREWORD

1 Scope

2 Normative references

3 Terms, definitions and acronyms

3.1 Terms and definitions

3.2 Acronyms

4 Classification

4.1 General

4.2 Normal service conditions

4.3 Provision for unusual service conditions

5 Ratings

5.1 General

5.2 Rated power at rated frequency and load capability

5.3 Rated and service voltages

5.3.1 Transformer energized from an a.c. power system

5.3.2 Transformer energized from a converter/inverter with or without variable frequency

5.4 Rated current

5.5 Phase displacement and terminal identification for three-phase transformer

5.6 Rating plate

5.7 Units with tertiary windings loaded with filter and compensation

5.8 On load tap-changers

6 Load loss and voltage drop in transformers and reactors

6.1 General

6.2 Determination of transformer load loss under distorted current loading

6.3 Current sharing, losses and hot spot in high current windings

6.4 Effect of geometrical winding arrangement and magnetic coupling between windings on their eddy current losses due to harmonics in transformers with three or more windings wound on the same core limb

6.5 Losses in interphase transformers, current-balancing reactors, series-smoothing reactors and transductors

6.5.1 General

6.5.2 Interphase transformers

6.5.3 Current-balancing reactors

6.5.4 Series-smoothing reactors

6.5.5 Transductors

6.6 Voltage drops in transformers and reactors

6.6.1 General

6.6.2 Transductors

7 Tests for converter transformers

7.1 General

7.2 Measurement of commutating reactance and determination of the inductive voltage drop

7.2.1 Commutating reactance

7.2.2 Inductive voltage regulation

7.3 Measurement of voltage ratio and phase displacement

7.4 Dielectric tests

7.4.1 General

7.4.2 Dielectric test between interleaved valve windings

7.5 Load loss test

7.5.1 General

7.5.2 Load loss measurement in rectifier transformers with transductors in the same tank

7.5.3 Test bus bars configuration for short circuit of high current valve windings

7.6 Temperature rise tests

7.6.1 General

7.6.2 Total loss injection

7.6.3 Rated load loss injection

7.6.4 Test of temperature rise on dry-type transformers

8 On load noise level with transductors and/or IPT

Annex A (informative) Determination of transformer service load loss at rated non-sinusoidal converter current from measurements with rated transformer current of fundamental frequency

Annex B (informative) Short-circuit test currents and load losses in transformers for single-way converters (total loss injection)

Annex C (informative) Current sharing measurement in high current valve windings

Annex D (informative) Examples of duty cycles

Annex E (informative) Guidelines for design review

Annex F (informative) Determination of loss in transformer tank due to magnetic field. 3D simulation and guidelines for tank losses evaluation and tank hotspot calculation

Annex G (informative) Short-circuit measurements of rectifier transformers equipped with built in transductors

Annex H (informative) Determination of the transformer voltage ratio and phase displacement by the turn ratio measurements

Annex I (informative) Phase displacement connections and terminal indications of converter transformers

Annex J (normative) Correlation between IEC 61378-1 and IEC 60146-1-1 ratings

Bibliography