High-voltage switchgear and controlgear - Part 37-013: Alternating-current generator circuit-breakers

IEC/IEEE 62271-37-013:2015(E) is applicable to three-phase a.c. high-voltage generator circuit-breakers, hereafter called generator circuit-breaker, designed for indoor or outdoor installation and for operation at frequencies of 50 Hz and 60 Hz on systems having voltages above 1 kV and up to 38 kV. It is applicable to generator circuit-breakers that are installed between the generator and the transformer terminals. Requirements relative to generator circuit-breakers intended for use with generators and transformers rated 10 MVA or more are covered specifically. Generator circuits rated less than 10 MVA and pumped storage installations are considered special applications, and their requirements are not completely covered by this standard. This standard is also applicable to the operating mechanisms of generator circuit-breakers and to their auxiliary equipment. This standard has been prepared by a joint working group comprised of members both from IEC 17A/WG 52 representing subcommittee 17A: High-voltage switchgear and controlgear, of IEC technical committee 17: Switchgear and controlgear, in cooperation with IEEE WG P62271-37-013 representing the Switchgear Committee of the Power and Energy Society of the IEEE, under the IEC/IEEE Dual Logo Agreement.
The contents of the corrigendum of June 2017 have been included in this copy.

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Status
Published
Publication Date
22-Oct-2015
Technical Committee
Current Stage
PPUB - Publication issued
Start Date
23-Oct-2015
Completion Date
23-Oct-2015
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IEC/IEEE 62271-37-013
Edition 1.0 2015-10
INTERNATIONAL
STANDARD
colour
inside
High-voltage switchgear and controlgear –
Part 37-013: Alternating-current generator circuit-breakers
IEC/IEEE 62271-37-013:2015-10(en)
---------------------- Page: 1 ----------------------
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IEC/IEEE 62271-37-013
Edition 1.0 2015-10
INTERNATIONAL
STANDARD
colour
inside
High-voltage switchgear and controlgear –
Part 37-013: Alternating-current generator circuit-breakers
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.130.10 ISBN 978-2-8322-2871-5

Warning! Make sure that you obtained this publication from an authorized distributor.

® Registered trademark of the International Electrotechnical Commission
---------------------- Page: 3 ----------------------
– 2 – IEC/IEEE 62271-37-013:2015
© IEC/IEEE 2015
CONTENTS

CONTENTS .......................................................................................................................... 2

FOREWORD....................................................................................................................... 12

1 General ....................................................................................................................... 14

1.1 Scope ................................................................................................................. 14

1.2 Normative references .......................................................................................... 14

2 Normal and special service conditions .......................................................................... 15

2.1 Normal service conditions ................................................................................... 15

2.2 Special service conditions ................................................................................... 15

3 Terms and definitions .................................................................................................. 15

3.1 General terms ..................................................................................................... 16

3.2 Assemblies of switchgear and controlgear ........................................................... 18

3.3 Parts of assemblies ............................................................................................. 18

3.4 Switching devices ............................................................................................... 18

3.5 Parts of generator circuit-breakers ....................................................................... 20

3.6 Operation ............................................................................................................ 23

3.7 Characteristic quantities ...................................................................................... 25

3.8 Index of definitions .............................................................................................. 40

4 Ratings ........................................................................................................................ 44

4.1 Rated voltage U ................................................................................................. 44

4.2 Rated insulation level .......................................................................................... 44

4.2.101 Dielectric strength ....................................................................................... 45

4.2.102 Rated power frequency withstand voltage U ............................................. 45

4.2.103 Rated lightning impulse withstand voltage U ............................................ 45

4.3 Rated frequency f .............................................................................................. 45

4.4 Rated normal current I and temperature rise ....................................................... 45

4.4.1 Rated normal current I ................................................................................ 45

4.4.2 Temperature rise.......................................................................................... 46

4.4.3 Particular points of Table 3 of IEC 62271-1:2007 .......................................... 46

4.4.101 Emergency current ratings during loss of cooling .......................................... 46

4.5 Rated short-time withstand current I .................................................................. 47

4.6 Rated peak withstand current I .......................................................................... 47

4.7 Rated duration of short circuit t ........................................................................ 47

4.8 Rated supply voltage of closing and opening devices and of auxiliary and

control circuits U ............................................................................................... 48

4.8.1 General ....................................................................................................... 48

4.8.2 Rated supply voltage U .............................................................................. 48

4.8.3 Tolerances ................................................................................................... 48

4.8.4 Ripple voltage .............................................................................................. 49

4.8.5 Voltage drop and supply interruption ............................................................ 49

4.9 Rated supply frequency of closing and opening devices and auxiliary circuits ....... 49

4.10 Rated pressure of compressed gas supply for controlled pressure

systems .............................................................................................................. 49

4.11 Rated filling levels for insulation, interruption and/or operation ......................... 49

4.101 Rated short-circuit current ................................................................................... 50

4.101.1 General ....................................................................................................... 50

4.101.2 Rated system-source short-circuit breaking current ....................................... 50

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4.101.3 Rated generator-source short-circuit breaking current ................................... 52

4.101.4 Rated single-phase-to-earth fault breaking current ........................................ 54

4.102 Rated peak short-circuit making current I ........................................................ 54

4.103 Rated load making and breaking current .............................................................. 54

4.104 Rated out-of-phase making and breaking current ................................................. 55

4.105 Rated transient recovery voltage (TRV) related to the breaking currents ............... 55

4.105.1 Representation of TRV waves ...................................................................... 55

4.105.2 Rated values of TRV .................................................................................... 56

4.106 Standard operating sequence .............................................................................. 57

4.106.1 General ....................................................................................................... 57

4.106.2 Rated short-circuit current operating sequence ............................................. 58

4.106.3 Rated load current operating sequence ........................................................ 58

4.106.4 Rated out-of-phase current operating sequence ............................................ 58

4.107 Rated time quantities .......................................................................................... 58

4.107.1 General ....................................................................................................... 58

4.107.2 Rated break-time ......................................................................................... 58

4.107.3 Rated minimum opening time ....................................................................... 59

4.108 Mechanical operation endurance capability classes M1 and M2 ............................ 59

5 Design and construction .............................................................................................. 59

5.1 Requirements for liquids in generator circuit-breakers .......................................... 59

5.2 Requirements for gases in generator circuit-breakers ........................................... 60

5.3 Earthing of generator circuit-breakers .................................................................. 60

5.4 Auxiliary and control equipment ........................................................................... 60

5.5 Dependent power operation ................................................................................. 61

5.6 Stored energy operation ...................................................................................... 61

5.7 Independent manual or power operation (independent unlatched operation) ......... 61

5.8 Operation of releases .......................................................................................... 61

5.8.1 Shunt closing release ................................................................................... 61

5.8.2 Shunt opening release ................................................................................. 61

5.8.3 Capacitor operation of shunt releases ........................................................... 61

5.8.4 Under-voltage release .................................................................................. 61

5.8.101 Multiple releases .......................................................................................... 61

5.8.102 Operation limits of releases .......................................................................... 61

5.8.103 Power consumption of releases .................................................................... 61

5.9 Low- and high-pressure interlocking devices ........................................................ 62

5.10 Nameplates ......................................................................................................... 62

5.10.101 Accessories ................................................................................................. 64

5.10.102 Modification of generator circuit-breakers ..................................................... 64

5.11 Interlocking devices ............................................................................................ 64

5.12 Position indication ............................................................................................... 64

5.13 Degrees of protection provided by enclosures ...................................................... 64

5.13.1 Protection of persons against access to hazardous parts and protection

of the equipment against ingress of solid foreign objects (IP coding) ............. 65

5.13.2 Protection against ingress of water (IP coding) ............................................. 65

5.13.3 Protection of equipment against mechanical impact under normal

service conditions (IK coding) ....................................................................... 65

5.14 Creepage distances for outdoor insulators ........................................................... 65

5.15 Gas and vacuum tightness .................................................................................. 65

5.16 Liquid tightness ................................................................................................... 65

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© IEC/IEEE 2015

5.17 Fire hazard (flammability) .................................................................................... 65

5.18 Electromagnetic compatibility (EMC) .................................................................... 65

5.19 X-ray emission .................................................................................................... 65

5.20 Corrosion ............................................................................................................ 65

5.101 Requirements for simultaneity of poles during single closing and single

opening operations .............................................................................................. 65

5.102 General requirement for operation ....................................................................... 66

5.103 Pressure limits of fluids for operation ................................................................... 66

5.104 Vent outlets ........................................................................................................ 66

5.105 Warning labels .................................................................................................... 66

5.106 Instructions ......................................................................................................... 66

6 Type tests ................................................................................................................... 67

6.1 General ............................................................................................................... 68

6.1.1 Grouping of tests ......................................................................................... 68

6.1.2 Information for identification of specimens .................................................... 68

6.1.3 Information to be included in type-test reports .............................................. 68

6.2 Dielectric tests .................................................................................................... 68

6.2.1 Ambient air conditions during tests ............................................................... 68

6.2.2 Wet test procedure ....................................................................................... 69

6.2.3 Condition of the generator circuit-breaker during dielectric tests .................... 69

6.2.4 Criteria to pass the test ................................................................................ 69

6.2.5 Application of test voltage and test conditions ............................................... 69

6.2.6 Tests of generator circuit-breakers of U ≤ 245 kV ........................................ 69

6.2.7 Tests of generator circuit-breakers of U > 245 kV ........................................ 70

6.2.8 Artificial pollution tests for outdoor insulators ................................................ 70

6.2.9 Partial discharge tests .................................................................................. 70

6.2.10 Dielectric tests on auxiliary and control circuits ............................................. 70

6.2.11 Voltage test as a condition check ................................................................. 70

6.3 Radio interference voltage (r.i.v.) tests ................................................................ 70

6.4 Measurement of the resistance of circuits ............................................................ 71

6.4.1 Main circuit .................................................................................................. 71

6.4.2 Auxiliary circuits ........................................................................................... 71

6.5 Temperature-rise tests ........................................................................................ 71

6.5.1 Conditions of the generator circuit-breaker to be tested ................................ 71

6.5.2 Arrangement of the equipment ..................................................................... 71

6.5.3 Measurement of the temperature and the temperature rise ............................ 73

6.5.4 Ambient air temperature ............................................................................... 73

6.5.5 Temperature-rise tests of the auxiliary and control equipment ....................... 73

6.5.6 Interpretation of the temperature-rise tests ................................................... 74

6.5.101 Demonstrations of emergency conditions ...................................................... 74

6.6 Short-time withstand current and peak withstand current tests ............................. 74

6.6.1 Arrangement of the generator circuit-breaker and of the test circuit ............... 74

6.6.2 Test current and duration ............................................................................. 74

6.6.3 Behaviour of generator circuit-breaker during test ......................................... 74

6.6.4 Conditions of generator circuit-breaker after test ........................................... 74

6.7 Verification of the degree of protection ................................................................ 75

6.7.1 Verification of the IP coding .......................................................................... 75

6.7.2 Verification of the IK coding .......................................................................... 75

6.8 Tightness tests .................................................................................................... 75

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IEC/IEEE 62271-37-013:2015 – 5 –
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6.9 Electromagnetic compatibility (EMC) tests ........................................................... 75

6.10 Additional tests on auxiliary and control circuits ................................................... 75

6.10.1 General ....................................................................................................... 75

6.10.2 Functional tests ........................................................................................... 75

6.10.3 Electrical continuity of earthed metallic parts test .......................................... 75

6.10.4 Verification of the operational characteristics of auxiliary contacts ................. 75

6.10.5 Environmental tests ..................................................................................... 75

6.10.6 Dielectric tests ............................................................................................. 76

6.11 X-radiation test procedure for vacuum interrupters ............................................... 76

6.101 Mechanical and environmental tests .................................................................... 76

6.101.1 Miscellaneous provisions for mechanical and environmental tests ................. 76

6.101.2 Mechanical operation test at ambient air temperature ................................... 79

6.101.3 Low and high temperature tests .................................................................... 81

6.101.4 Sound level tests ......................................................................................... 85

6.102 Miscellaneous provisions for making and breaking tests ....................................... 85

6.102.1 General ....................................................................................................... 85

6.102.2 Number of test specimens ............................................................................ 86

6.102.3 Arrangement of generator circuit-breaker for tests ........................................ 86

6.102.4 General considerations concerning testing methods ...................................... 88

6.102.5 Synthetic tests ............................................................................................. 94

6.102.6 No-load operations before tests .................................................................... 94

6.102.7 Alternative operating mechanisms ................................................................ 94

6.102.8 Behaviour of generator circuit-breaker during tests ....................................... 95

6.102.9 Condition of generator circuit-breaker after tests ........................................... 96

6.102.10 Demonstration of the most severe switching conditions ................................. 98

6.102.11 Methods of determining prospective transient recovery voltage waves ......... 115

6.103 System-source short-circuit making and breaking tests ...................................... 115

6.103.1 Power factor of test circuit .......................................................................... 115

6.103.2 Frequency of test circuit ............................................................................. 115

6.103.3 Earthing of test circuit ................................................................................ 115

6.103.4 Connection of test circuit to generator circuit-breaker.................................. 117

6.103.5 Applied voltage for system-source short-circuit making tests ....................... 117

6.103.6 System-source short-circuit making current ................................................ 117

6.103.7 System-source short-circuit breaking current .............................................. 117

6.103.8 Transient recovery voltage (TRV) for system-source short-circuit

breaking tests ............................................................................................ 118

6.103.9 Measurement of transient recovery voltage during test ................................ 119

6.103.10 Power frequency recovery voltage .............................................................. 119

6.103.11 System-source short-circuit test operating sequence ................................... 119

6.103.12 System-source short-circuit test-duties ....................................................... 119

6.104 Load current breaking tests ............................................................................... 121

6.104.1 General ..................................................................................................... 121

6.104.2 Conditions of test severity .......................................................................... 122

6.104.3 Number of tests ......................................................................................... 122

6.105 Generator-source short-circuit current making and breaking tests ....................... 122

6.105.1 Power factor of test circuit .......................................................................... 122

6.105.2 Frequency of test circuit ............................................................................. 122

6.105.3 Earthing of test circuit ................................................................................ 123

6.105.4 Connection of the test circuit to the generator circuit-breaker ...................... 123

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6.105.5 Applied voltage for generator-source short-circuit making tests ................... 123

6.105.6 Generator-source short-circuit making current ............................................ 124

6.105.7 Generator-source short-circuit breaking current .......................................... 124

6.105.8 Transient recovery voltage (TRV) for generator-source short-circuit

breaking tests ............................................................................................ 125

6.105.9 Measurement of transient recovery voltage during test ................................ 125

6.105.10 Power frequency recovery voltage .............................................................. 125

6.105.11 Generator-source short-circuit test operating sequence .............................. 125

6.105.12 Generator-source short-circuit breaking test-duties ..................................... 125

6.106 Out-of-phase making and breaking tests ............................................................ 131

6.106.1 General ..................................................................................................... 131

6.106.2 Out-of-phase current switching capability .................................................... 132

6.106.3 Conditions of test severity .......................................................................... 132

6.106.4 Test circuit ................................................................................................. 134

6.106.5 Applied voltage before out-of-phase making tests ....................................... 136

6.106.6 Transient recovery voltage (TRV) for out-of-phase breaking tests ................ 136

6.106.7 Demonstration of the most severe switching conditions during test-duty

OP1 ........................................................................................................... 136

6.106.8 Demonstration of the most severe switching conditions during test-duty

OP2 ........................................................................................................... 136

7 Routine tests ............................................................................................................. 136

7.1 Dielectric test on the main circuit ....................................................................... 137

7.2 Tests on auxiliary and control circuits ................................................................ 137

7.2.1 Inspection of auxiliary and control circuits, and verification of conformity

to the circuit diagrams and wiring diagrams ................................................ 137

7.2.2 Functional tests ......................................................................................... 137

7.2.3 Verification of protection against electrical shock ........................................ 137

7.2.4 Dielectric tests ........................................................................................... 137

7.3 Measurement of the resistance of the main circuit .............................................. 138

7.4 Tightness test ................................................................................................... 138

7.4.1 Controlled pressure systems for gas ........................................................... 138

7.4.2 Closed pressure systems for gas ................................................................ 138

7.4.3 Sealed pressure systems ........................................................................... 138

7.4.4 Liquid tightness tests ................................................................................. 138

7.5 Design and visual checks .............................................
...

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