ДСТУ EN IEC 60076-11:2022 Силовые трансформаторы. Часть 11. Трансформаторы сухого типа (EN IEC 60076-11:2018, IDT; IEC 60076-11:2018, IDT)

ДСТУ EN IEC 60076-11:2022
(EN IEC 60076-11:2018, IDT; IEC 60076-11:2018, IDT)

Силові трансформатори. Частина 11. Трансформатори сухого типу
 
 
     
Не є офіційним виданням.
Офіційне видання розповсюджує національний орган стандартизації
(ДП «УкрНДНЦ» http://uas.gov.ua)

CONTENTS

FOREWORD

1 Scope

2 Normative references

3 Terms and definitions

4 Service conditions

4.1 General

4.2 Normal service conditions

4.3 Electromagnetic compatibility (EMC)

5 Rating and general requirements

5.1 General

5.2 Rated power

5.3 Provision for unusual service conditions

5.4 Transportation and storage

5.5 Rated voltage and rated frequency

5.6 Operation at higher than rated voltage

5.7 Highest voltage for equipment U_m and dielectric tests levels

5.8 Identification according to cooling method

5.9 Guaranteed temperature rise at rated conditions

5.10 Additional information required for enquiry

5.11 Sound level

5.12 Components and materials

6 Tappings

7 Connections

8 Ability to withstand short circuit

9 Rating plate

9.1 Rating plate fitted to the transformer

9.2 Rating plate fitted to the transformer enclosure

10 Temperature-rise limits

10.1 Normal temperature-rise limits

10.2 Reduced temperature rises for transformers designed for high cooling medium temperatures or special cooling medium conditions

10.3 High altitude temperature rise correction

11 Insulation levels

11.1 General

11.2 Transformers for use at high altitudes

12 Climatic, environmental and fire behaviour classes

12.1 Climatic classes

12.2 Environmental classes

12.3 Fire behaviour classes

12.4 Test criteria for climatic, environmental and fire behaviour classes

13 Seismic

13.1 General

13.2 General seismic class approach

14 Test

14.1 General requirements for tests

14.2 Routine tests

14.3 Type tests

14.4 Special tests

15 Tolerances

16 Protection against direct contact

17 Degrees of protection provided by enclosures

18 Earthing terminal

19 Information required with enquiry and order

Annex A (informative) Installation and safety of dry-type transformers

Annex В (informative) Environmental test for evaluation of outdoor transformers without enclosure

Annex C (normative) Cooling of transformer in naturally ventilated room

Annex D (normative) Calculation of the losses with different reference temperatures and/or winding material

Bibliography