ДСТУ EN 60076-11:2015 Силовые трансформаторы. Часть 11. Трансформаторы сухого типа (EN 60076-11:2004, IDT)

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EN 60076-11:2004

Power transformers - Part 11: Dry-type transformers

прийнято як національний стандарт
методом «підтвердження» за позначенням
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ДСТУ EN 60076-11:2015
(EN 60076-11:2004, IDT)

Силові трансформатори. Частина 11. Трансформатори сухого типу

З наданням чинності від 2016–01–01

CONTENTS

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)

4.4 Provision for unusual service conditions

4.5 Transport and storage conditions

5 Tappings

6 Connections

7 Ability to withstand short circuit

8 Rating

8.1 General

8.2 Rated power

8.3 Preferred values of rated power

8.4 Operation at higher than rated voltage

8.5 Operation with fan cooling

8.6 Operation in an enclosure

9 Rating plate

9.1 Rating plate fitted to the transformer

9.2 Rating plate fitted to the transformer enclosure

10 Identification according to cooling method

10.1 Identification symbols

10.2 Arrangement of symbols

11 Temperature-rise limits

11.1 Normal temperature-rise limits

11.2 Reduced temperature rises for transformers designed for high cooling air temperatures or special air cooling conditions

11.3 High altitude temperature rise correction

12 Insulation levels

12.1 General

12.2 Transformers for use at high altitudes

13 Climatic, environmental and fire behaviour classes

13.1 Climatic classes

13.2 Environmental classes

13.3 Fire behaviour classes

13.4 Test criteria for climatic, environmental and fire behaviour classes

14 General requirements for tests

15 Measurement of winding resistance (routine test)

16 Measurement of voltage ratio and check of phase displacement (routine test)

17 Measurement of short-circuit impedance and load loss (routine test)

18 Measurement of no-load loss and current (routine test)

19 Separate-source AC withstand voltage test (routine test)

20 Induced AC withstand voltage test (routine test)

21 Lightning impulse test (type test)

22 Partial discharge measurement (routine and special test)

22.1 General

22.2 Basic measuring circuit (typical only)

22.3 Calibration of the measuring circuit

22.4 Voltage application

22.5 Partial discharge acceptance levels

23 Temperature-rise test (type test)

23.1 General

23.2 Methods of loading

23.3 Winding temperature-rise correction for reduced current

23.4 Determination of steady state conditions

24 Measurement of sound level (special test)

25 Short-circuit test (special test)

 26 Environmental test (special test)

26.1 General

26.2 Validity of the test

26.3 Testing procedure

27 Climatic test (special test)

27.1 Thermal shock test (special test)

27.2 Validity of the test.

27.3 Thermal shock test for C1 class transformers

27.4 Thermal shock test for C2 class transformers

28 Fire behaviour test (special test)

28.1 General

28.2 Checking of corrosive and harmful gases emission

28.3 Fire behaviour test for F1 class transformer

28.4 Quantities to be measured and measuring devices

28.5 Calibration of the test chamber without test object

28.6 Test method

28.7 Test report

28.8 Criteria for evaluating the test results

29 Tolerances

30 Protection against direct contact

31 Degrees of protection provided by enclosures

32 Earthing terminal

33 Information required with enquiry and order

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

Annex ZA (normative) Normative references to international publications with their corresponding European publications