ДСТУ IEC/TR 62271-306:2017 Пристрої контрольні розподільчі високовольтні. Частина 306. Настанова щодо ІЕС 62271-100, ІЕС 62271-1 та інших стандартів ІЕС, пов’язаних з автоматичними вимикачами змінного струму...

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IEC/TR 62271-306:2012

High-voltage switchgear and controlgear —
Part 306: Guide to IEC 62271-100, IEC 62271-1
and other IEC standards related to alternating current circuit-breakers

прийнято як національний стандарт
методом «підтвердження» за позначенням
 

ДСТУ IEC/TR 62271-306:2017
(IEC/TR 62271-306:2012, IDT)

Пристрої контрольні розподільчі високовольтні.
Частина 306. Настанова щодо ІЕС 62271-100, ІЕС 62271-1 та інших стандартів ІЕС,
пов’язаних з автоматичними вимикачами змінного струму

З наданням чинності від 2017-10-01

CONTENTS

FOREWORD

1 General

1.1 Scope

1.2 Normative references

2 Evolution of IEC standards for high-voltage circuit-breaker

3 Classification of circuit-breakers

3.1 General

3.2 Electrical endurance class E1 and E2

3.3 Capacitive current switching class C1 and C2

3.4 Mechanical endurance class M1 and M2

3.5 Class S1 and S2

3.6 Conclusion

4 Insulation levels and dielectric tests

4.1 General

4.2 Longitudinal voltage stresses

4.3 High-voltage tests

4.4 Impulse voltage withstand test procedures

4.5 Correction factors

4.6 Background information about insulation levels and tests

4.7 Lightning impulse withstand considerations of vacuum interrupters

5 Rated normal current and temperature rise

5.1 General

5.2 Load current carrying requirements

5.3 Temperature rise testing

5.4 Additional information

6 Transient recovery voltage

6.1 Harmonization of IEC and IEEE transient recovery voltages

6.2 Initial Transient Recovery Voltage (ITRV)

6.3 Testing

7 Short-line faults

7.1 Short-line fault requirements

7.2 SLF testing

7.3 Additional explanations on SLF

7.4 Comparison of surge impedances

7.5 Calculation of actual percentage of SLF breaking currents

7.6 TRV with parallel capacitance

8 Out-of-phase switching

8.1 Reference system conditions

8.2 TRV parameters introduced into Tables 1b and 1c of the first edition of IEC 62271-100

9 Switching of capacitive currents

9.1 General

9.2 General theory of capacitive current switching

9.3 Non-sustained disruptive discharge (NSDD)

9.4 General application considerations

9.5 Considerations of capacitive currents and recovery voltages under fault conditions

9.6 Explanatory notes regarding capacitive current switching tests

10 Gas tightness

10.1 Specification

10.2 Testing

10.3 Cumulative test method and calibration procedure for type tests on closed pressure systems

11 Miscellaneous provisions for breaking tests

11.1 Energy for operation to be used during demonstration of the rated operating sequence during short-circuit making and breaking tests

11.2 Alternative operating mechanisms

12 Rated and test frequency

12.1 General

12.2 Basic considerations

12.3 Applicability of type tests at different frequencies

13 Terminal faults

13.1 General

13.2 Demonstration of arcing time

13.3 Demonstration of the arcing time for three-phase tests

13.4 Power frequency recovery voltage and the selection of the first-pole-to-clear factors 1,0; 1,2; 1,3 and 1,5

13.5 Characteristics of recovery voltage

13.6 Arcing window and k_p requirements for testing

13.7 Single-phase testing to cover three-phase testing requirements

13.8 Combination tests for k_pp = 1,3 and 1,5

13.9 Suitability of a particular short-circuit current rated circuit-breaker for use at an application with a lower short-circuit requirement

13.10 Basis for the current and TRV values of the basic short-circuit test-duty T10

14 Double earth fault

14.1 Basis for specification

14.2 Short-circuit current

14.3 TRV

14.4 Determination of the short-circuit current in the case of a double-earth fault

15 Transport, storage, installation, operation and maintenance

15.1 General

15.2 Transport and storage

15.3 Installation

15.4 Commissioning

15.5 Operation

15.6 Maintenance

16 Inductive load switching

16.1 General

16.2 Shunt reactor switching

16.3 Motor switching

16.4 Unloaded transformer switching

16.5 Shunt reactor characteristics

16.6 System and station characteristics

16.7 Current chopping level calculation

16.8 Application of laboratory test results to actual shunt reactor installations

16.9 Statistical equations for derivation of chopping and re-ignition overvoltages

Annex A (informative) Consideration of d.c. time constant of the rated short-circuit current in the application of high-voltage circuit-breakers

Annex B (informative) Interruption of currents with delayed zero crossings

Annex C (informative) Parallel switching

Annex D (informative) Application of current limiting reactors

Annex E (informative) Explanatory notes on the revision of TRVs for circuit-breakers of rated voltages higher than 1 kV and less than 100 kV

Annex F (informative) Current and test-duty combination for capacitive current switching tests

Annex G (informative) Grading capacitors

Annex H (informative) Circuit-breakers with opening resistors

Annex I (informative) Circuit-breaker history

Bibliography