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EN 60044-8:2002
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Instrument transformers - Part 8: Electronic current transformers
01-12-2016
10-09-2002
FOREWORD
1 Scope
1.1 General
1.2 General block diagram of electronic current
transformers
1.3 General block diagram of electronic transformers
with a digital output
2 Normative references
3 Definitions
3.1 General definitions
3.2 Additional definitions for measuring electronic
current transformers
3.3 Additional definitions for protective electronic
current transformers
3.4 Additional definitions for digital output
3.5 Additional definitions for analogue voltage output
3.6 Index of main definitions and abbreviations
4 Normal and special service conditions
4.1 General
4.2 Normal service conditions
4.3 Special service conditions
4.4 System earthing
5 Ratings
5.1 General ratings
5.2 Standard values for rated phase offset
5.3 Rating for digital output
5.4 Ratings for analogue voltage output
6 Design requirements
6.1 General design requirements
6.2 Design requirements for digital output
6.3 Design requirements for analogue voltage
output
7 Classification of tests
7.1 General
7.2 Type tests
7.3 Routine tests
7.4 Special tests
8 Type test
8.1 Short-time current tests
8.2 Temperature-rise test
8.3 Impulse tests on primary terminals
8.4 Wet test for outdoor type electronic current
transformers
8.5 RIV tests
8.6 Transmitted overvoltage test
8.7 Low-voltage components voltage withstand test
EMC tests
8.9 Accuracy test
8.10 Additional accuracy tests for protective electronic
current transformers
8.11 Verification of the protection
8.12 Tightness tests
8.13 Vibration tests
8.14 Additional type test for digital output
9 Routine tests
9.1 Verification of terminal markings
9.2 Power-frequency withstand test on primary terminals
and partial discharge measurement
9.3 Power-frequency voltage withstand test for low-voltage
components
9.4 Accuracy tests
9.5 Tightness tests
9.6 Additional routine tests for digital output
9.7 Additional routine tests for analogue output
10 Special tests
10.1 Chopped lightning-impulse test on primary terminals
10.2 Measurement of capacitance and dielectric dissipation
factor
10.3 Mechanical tests
10.4 Tests for accuracy versus harmonics
10.5 Tests in accordance with the technology applied
11 Marking
11.1 Terminal marking - General rules
11.2 Rating plate markings
12 Additional requirements for measuring electronic current
transformers
12.1 Accuracy class designation
12.2 Limits of current error and phase error at rated
frequency
12.3 Accuracy requirements on harmonics
13 Additional requirements for protective electronic current
transformers
13.1 Accuracy classes
13.2 Accuracy requirements on harmonics
14 Information to be given with enquiries, tenders and orders
14.1 Designation
14.2 Dependability
15 Rules for transport, storage and installation
15.1 Conditions during transport, storage and installation
15.2 Installation
15.3 Unpacking and lifting
15.4 Assembly
15.5 Operation
15.6 Maintenance
16 Safety
16.1 Electrical aspects
16.2 Mechanical aspects
16.3 Thermal aspects
Annex A (informative) Transient performance of ECTs
Annex B (informative) Technical information for electronic
current transformers with digital output
Annex C (informative) Technical information for electronic
current transformers with analogue output
Annex D (normative) Frequency response and accuracy requirements
on harmonics for electronic current and voltage
transformer
Annex E (informative) Graph explaining the accuracy requirements
Annex ZA (normative) Normative references to international
publications with their corresponding European
publications
Bibliography
This part of EN 60044 applies to newly manufactured electronic current transformers having an analogue voltage output or a digital output, for use with electrical measuring instruments and electrical protective devices at nominal frequencies from 15 Hz to 100 Hz.
Committee |
CLC/TC 38
|
DevelopmentNote |
Superseded by EN 61869-6 but remains current and will be withdrawn until all the relevant parts of EN 61869 series will be published. (01/2017)
|
DocumentType |
Standard
|
PublisherName |
European Committee for Standards - Electrical
|
Status |
Superseded
|
SupersededBy |
Standards | Relationship |
NF EN 60044-8 : 2006 | Identical |
PN EN 60044-8 : 2006 | Identical |
I.S. EN 60044-8:2002 | Identical |
NEN EN IEC 60044-8 : 2003 | Identical |
IEC 60044-8:2002 | Identical |
VDE 0414-44-8 : 2003 | Identical |
BS EN 60044-8:2002 | Identical |
UNE-EN 60044-8:2005 | Identical |
CEI EN 60044-8 : 2004 | Identical |
DIN EN 60044-8 : 2003 | Identical |
NBN EN 60044-8 : 2003 | Identical |
UNE-EN 62271-205:2011 | High-voltage switchgear and controlgear -- Part 205: Compact switchgear assemblies for operation at rated voltages above 52 kV |
BS EN 60255-1:2010 | Measuring relays and protection equipment Common requirements |
I.S. EN 50463-2:2017 | RAILWAY APPLICATIONS - ENERGY MEASUREMENT ON BOARD TRAINS - PART 2: ENERGY MEASURING |
PREN 50463-2 : DRAFT 2015 | RAILWAY APPLICATIONS - ENERGY MEASUREMENT ON BOARD TRAINS - PART 2: ENERGY MEASURING |
15/30329546 DC : 0 | BS EN 50463-2 - RAILWAY APPLICATIONS - ENERGY MEASUREMENT ON BOARD TRAINS - PART 2: ENERGY MEASURING |
BS EN 50463-2:2017 | Railway applications. Energy measurement on board trains Energy measuring |
EN 62271-205:2008/corrigendum:2008 | HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 205: COMPACT SWITCHGEAR ASSEMBLIES FOR RATED VOLTAGES ABOVE 52 KV |
EN 61869-6:2016 | Instrument transformers - Part 6: Additional general requirements for low-power instrument transformers |
EN 61850-9-1:2003 | Communication networks and systems in substations - Part 9-1: Specific Communication Service Mapping (SCSM) - Sampled values over serial unidirectional multidrop point to point link |
I.S. EN 50327:2003 | RAILWAY APPLICATIONS - FIXED INSTALLATIONS - HARMONISATION OF THE RATED VALUES FOR CONVERTER GROUPS AND TESTS ON CONVERTER GROUPS |
UNE-EN 61557-12:2010 | Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. - Equipment for testing, measuring or monitoring of protective measures -- Part 12: Performance measuring and monitoring devices (PMD) |
I.S. EN 62689-1:2016 | CURRENT AND VOLTAGE SENSORS OR DETECTORS, TO BE USED FOR FAULT PASSAGE INDICATION PURPOSES - PART 1: GENERAL PRINCIPLES AND REQUIREMENTS |
BS EN 50327:2003 | Railway applications. Fixed installations. Harmonisation of the rated values for converter groups and tests on converter groups |
CEI EN 61850-9-1 : 2015 | COMMUNICATION NETWORKS AND SYSTEMS IN SUBSTATIONS - PART 9-1: SPECIFIC COMMUNICATION SYSTEM MAPPINGS (SCSM) - SAMPLED VALUES OVER SERIAL UNIDIRECTIONAL MULTIDROP POINT TO POINT LINK |
BS EN 60143-2:2013 | Series capacitors for power systems Protective equipment for series capacitor banks |
EN 50463-2:2017 | Railway applications - Energy measurement on board trains - Part 2: Energy measuring |
CEI EN 60143-2 : 2014 | SERIES CAPACITORS FOR POWER SYSTEMS - PART 2: PROTECTIVE EQUIPMENT FOR SERIES CAPACITOR BANKS |
I.S. EN 62271-205:2008 | HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 205: COMPACT SWITCHGEAR ASSEMBLIES FOR RATED VOLTAGES ABOVE 52 KV |
BS EN 61850-9-1:2003 | Communication networks and systems in substations. Specific communication service mapping (SCSM) Sampled values over serial unidirectional multidrop point to point link |
EN 62689-1:2016 | Current and voltage sensors or detectors, to be used for fault passage indication purposes - Part 1: General principles and requirements |
BS EN 62271-205:2008 | High-voltage switchgear and controlgear Compact switchgear assemblies for rated voltages above 52 kV |
BS EN 62689-1:2016 | Current and voltage sensors or detectors, to be used for fault passage indication purposes General principles and requirements |
I.S. EN 61850-9-1:2003 | COMMUNICATION NETWORKS AND SYSTEMS IN SUBSTATIONS - PART 9-1: SPECIFIC COMMUNICATION SERVICE MAPPING (SCSM) - SAMPLED VALUES OVER SERIAL UNIDIRECTIONAL MULTIDROP POINT TO POINT LINK |
CEI EN 60255-1 : 2011 | MEASURING RELAYS AND PROTECTION EQUIPMENT - PART 1: COMMON REQUIREMENTS |
CEI EN 62271-205 : 2012 | HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 205: COMPACT SWITCHGEAR ASSEMBLIES FOR RATED VOLTAGES ABOVE 52 KV |
UNE-EN 60255-1:2010 | Measuring relays and protection equipment -- Part 1: Common requirements |
BS EN 61869-6:2016 | Instrument transformers Additional general requirements for low-power instrument transformers |
I.S. EN 60143-2:2013 | SERIES CAPACITORS FOR POWER SYSTEMS - PART 2: PROTECTIVE EQUIPMENT FOR SERIES CAPACITOR BANKS (IEC 60143-2:2012 (EQV)) |
I.S. EN 60255-1:2010 | MEASURING RELAYS AND PROTECTION EQUIPMENT - PART 1: COMMON REQUIREMENTS |
EN 50327 : 2003 AMD 1 2005 | RAILWAY APPLICATIONS - FIXED INSTALLATIONS - HARMONISATION OF THE RATED VALUES FOR CONVERTER GROUPS AND TESTS ON CONVERTER GROUPS |
EN 60255-1:2010 | Measuring relays and protection equipment - Part 1: Common requirements |
EN 60143-2:2013 | Series capacitors for power systems - Part 2: Protective equipment for series capacitor banks |
IEC 61025:2006 | Fault tree analysis (FTA) |
IEC 60480:2004 | Guidelines for the checking and treatment of sulfur hexafluoride (SF<sub>6</sub>) taken from electrical equipment and specification for its re-use |
IEC 60874-10:1992 | Connectors for optical fibres and cables - Part 10: Sectional specification - Fibre optic connector type BFOC/2,5 |
IEC 60255-22-1:2007 | Measuring relays and protection equipment - Part 22-1: Electrical disturbance tests - 1 MHz burst immunity tests |
EN 50160 : 2010 AMD 1 2015 | VOLTAGE CHARACTERISTICS OF ELECTRICITY SUPPLIED BY PUBLIC ELECTRICITY NETWORKS |
IEC 60038:2009 | IEC standard voltages |
IEC 60270:2000+AMD1:2015 CSV | High-voltage test techniques - Partial discharge measurements |
IEC 60044-7:1999 | Instrument transformers - Part 7: Electronic voltage transformers |
EN 60068-2-75:2014 | Environmental testing - Part 2-75: Tests - Test Eh: Hammer tests |
IEC 60028:1925 | International standard of resistance for copper |
IEC 61850-9-1:2003 | Communication networks and systems in substations - Part 9-1: Specific Communication Service Mapping (SCSM) - Sampled values over serial unidirectional multidrop point to point link |
EN 61000-4-1:2007 | Electromagnetic compatibility (EMC) - Part 4-1: Testing and measurement techniques - Overview of IEC 61000-4 series |
IEC 61000-4-1:2006 | Electromagnetic compatibility (EMC) - Part 4-1: Testing and measurement techniques - Overview of IEC 61000-4 series |
EN 61000-4-11:2004/A1:2017 | ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-11: TESTING AND MEASUREMENT TECHNIQUES - VOLTAGE DIPS, SHORT INTERRUPTIONS AND VOLTAGE VARIATIONS IMMUNITY TESTS (IEC 61000-4-11:2004/A1:2017) |
IEC 60812:2006 | Analysis techniques for system reliability - Procedure for failure mode and effects analysis (FMEA) |
IEC TS 61462:1998 | Composite insulators - Hollow insulators for use in outdoor and indoor electrical equipment - Definitions, test methods, acceptance criteria and design recommendations |
IEC 60050-601:1985 | International Electrotechnical Vocabulary (IEV) - Part 601: Generation, transmission and distribution of electricity - General |
EN 61000-4-9:2016 | Electromagnetic compatibility (EMC) - Part 4-9: Testing and measurement techniques - Impulse magnetic field immunity test |
IEC 60304:1982 | Standard colours for insulation for low-frequency cables and wires |
IEC 61000-4-11:2004+AMD1:2017 CSV | Electromagnetic compatibility (EMC) - Part 4-11: Testing and measurement techniques - Voltage dips, short interruptions and voltage variations immunity tests |
IEC 60255-24:2013 | Measuring relays and protection equipment - Part 24: Common format for transient data exchange (COMTRADE) for power systems |
HD 625.1 : 200S1 | INSULATION COORDINATION FOR EQUIPMENT WITHIN LOW-VOLTAGE SYSTEMS - PRINCIPLES, REQUIREMENTS AND TESTS |
IEC 60599:2015 | Mineral oil-filled electrical equipment in service - Guidance on the interpretation of dissolved and free gases analysis |
HD 485 : 200S1 | ANALYSIS TECHNIQUES FOR SYSTEM RELIABILITY - PROCEDURE FOR FAILURE MODE AND EFFECTS ANALYSIS (FMEA) |
EN 60870-5-1:1993 | Telecontrol equipment and systems - Part 5: Transmission protocols - Section 1: Transmission frame formats |
EN 61166:1993 | High-voltage alternating current circuit-breakers - Guide for seismic qualification of high-voltage alternating current circuit-breakers |
EN 61000-4-2:2009 | Electromagnetic compatibility (EMC) - Part 4-2: Testing and measurement techniques - Electrostatic discharge immunity test |
EN 61000-4-7:2002/A1:2009 | ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-7: TESTING AND MEASUREMENT TECHNIQUES - GENERAL GUIDE ON HARMONICS AND INTERHARMONICS MEASUREMENTS AND INSTRUMENTATION, FOR POWER SUPPLY SYSTEMS AND EQUIPMENT CONNECTED THERETO (IEC 61000-4-7:2002/A1:2008) |
IEC 61508-3:2010 | Functional safety of electrical/electronic/programmable electronic safety-related systems - Part 3: Software requirements (see Functional Safety and IEC 61508) |
EN 60707 : 1999 | FLAMMABILITY OF SOLID NON-METALLIC MATERIALS WHEN EXPOSED TO FLAME SOURCES - LIST OF TEST METHODS |
IEC 60056:1987 | High-voltage alternating-current circuit-breakers |
IEC 60376:2005 | Specification of technical grade sulfur hexafluoride (SF<sub>6</sub>) for use in electrical equipment |
IEC 60567:2011 | Oil-filled electrical equipment - Sampling of gases and analysis of free and dissolved gases - Guidance |
HD 588.1 : S1 AMD 1 | HIGH VOLTAGE TEST TECHNIQUES - GENERAL DEFINITIONS AND TEST REQUIREMENTS |
EN 60044-6 : 1999 | INSTRUMENT TRANSFORMERS - REQUIREMENTS FOR PROTECTIVE CURRENT TRANSFORMERS FOR TRANSIENT PERFORMANCE |
IEC 61166:1993 | High-voltage alternating current circuit-breakers - Guide for seismic qualification of high-voltage alternating current circuit-breakers |
EN 60255-5:2001 | Electrical relays - Part 5: Insulation coordination for measuring relays and protection equipment - Requirements and tests |
IEC 60694:1996+AMD1:2000+AMD2:2001 CSV | Common specifications for high-voltage switchgear and controlgear standards |
EN 61000-4-3 : 2006 AMD 2 2010 | ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-3: TESTING AND MEASUREMENT TECHNIQUES - RADIATED, RADIO-FREQUENCY, ELECTROMAGNETIC FIELD IMMUNITY TEST |
IEC 60085:2007 | Electrical insulation - Thermal evaluation and designation |
IEC 60172:2015 | Test procedure for the determination of the temperature index of enamelled and tape wrapped winding wires |
IEC 60296:2012 RLV | Fluids for electrotechnical applications - Unused mineral insulating oils for transformers and switchgear |
IEC 60721-2-2:2012 | Classification of environmental conditions - Part 2-2: Environmental conditions appearing in nature - Precipitation and wind |
EN 60044-7:2000 | Instrument transformers - Part 7: Electronic voltage transformers |
IEC 60707:1999 | Flammability of solid non-metallic materials when exposed to flame sources - List of test methods |
IEC 60044-6:1992 | Instrument transformers - Part 6: Requirements for protective current transformers for transient performance |
IEC 60437:1997 | Radio interference test on high-voltage insulators |
EN 60694:1996/A2:2001 | COMMON SPECIFICATIONS FOR HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR STANDARDS |
IEC 60121:1960 | Recommendation for commercial annealed aluminium electrical conductor wire |
HD 566 : 200S1 | THERMAL EVALUATION AND CLASSIFICATION OF ELECTRICAL INSULATION |
IEC 60529:1989+AMD1:1999+AMD2:2013 CSV | Degrees of protection provided by enclosures (IP Code) |
IEC 60044-1:1996+AMD1:2000+AMD2:2002 CSV | Instrument transformers - Part 1: Current transformers |
EN 60068-2-17:1994 | Environmental testing - Part 2: Tests - Test Q: Sealing |
EN 61000-4-8:2010 | Electromagnetic compatibility (EMC) - Part 4-8: Testing and measurement techniques - Power frequency magnetic field immunity test |
IEC 60068-2-17:1994 | Basic environmental testing procedures - Part 2-17: Tests - Test Q: Sealing |
EN 61850-3:2014 | Communication networks and systems for power utility automation - Part 3: General requirements |
HD 348 : 200S7 | HIGH-VOLTAGE ALTERNATING-CURRENT CIRCUIT-BREAKERS |
EN 61000-4-12:2017 | Electromagnetic compatibility (EMC) - Part 4-12: Testing and measurement techniques - Ring wave immunity test |
IEC 61000-4-2:2008 | Electromagnetic compatibility (EMC) - Part 4-2: Testing and measurement techniques - Electrostatic discharge immunity test |
IEC 61000-4-3:2006+AMD1:2007+AMD2:2010 CSV | Electromagnetic compatibility (EMC) - Part 4-3: Testing and measurement techniques - Radiated, radio-frequency, electromagnetic field immunity test |
IEC 60376B:1974 | Second supplement: Clause 26 |
IEC 60255-5:2000 | Electrical Relays - Part 5: Insulation coordination for measuring relays and protection equipment - Requirements and tests |
EN 60071-1:2006/A1:2010 | INSULATION CO-ORDINATION - PART 1: DEFINITIONS, PRINCIPLES AND RULES |
HD 617 : 200S1 | FAULT TREE ANALYSIS (FTA) |
IEC 61850-7-4:2010 | Communication networks and systems for power utility automation - Part 7-4: Basic communication structure - Compatible logical node classes and data object classes |
IEC 60050-321:1986 | International Electrotechnical Vocabulary (IEV) - Part 321: Instrument transformers |
HD 402 : 200S2 | STANDARD COLOURS FOR INSULATION FOR LOW-FREQUENCY CABLES AND WIRES |
IEC 60071-2:1996 | Insulation co-ordination - Part 2: Application guide |
IEC 61000-4-7:2002+AMD1:2008 CSV | Electromagnetic compatibility (EMC) - Part 4-7: Testing and measurement techniques - General guide on harmonics and interharmonics measurements and instrumentation, for power supply systems and equipment connected thereto |
IEC 60721-3-3:1994+AMD1:1995+AMD2:1996 CSV | Classification of environmental conditions - Part 3-3: Classification of groups of environmental parameters and their severities - Stationary use at weatherprotected locations |
EN 60068-2-6:2008 | Environmental testing - Part 2-6: Tests - Test Fc: Vibration (sinusoidal) |
IEC 60068-2-75:2014 | Environmental testing - Part 2-75: Tests - Test Eh: Hammer tests |
EN 60044-1:1999/A2:2003 | INSTRUMENT TRANSFORMERS - PART 1: CURRENT TRANSFORMERS |
EN 61000-4-4:2012 | ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-4: TESTING AND MEASUREMENT TECHNIQUES - ELECTRICAL FAST TRANSIENT/BURST IMMUNITY TEST (IEC 61000-4-4:2012) |
CISPR 11:2015 RLV | Industrial, scientific and medical equipment - Radio-frequency disturbance characteristics - Limits and methods of measurement |
IEC 60721-2-4:1987+AMD1:1988 CSV | Classification of environmental conditions - Part 2-4: Environmental conditions appearing in nature - Solar radiation and temperature |
TIA 485 : A1998(R2012) | ELECTRICAL CHARACTERISTICS OF GENERATORS AND RECEIVERS FOR USE IN BALANCED DIGITAL MULTIPOINT SYSTEMS |
IEC 60870-5-1:1990 | Telecontrol equipment and systems. Part 5: Transmission protocols - Section One: Transmission frame formats |
IEC 61508-1:2010 | Functional safety of electrical/electronic/programmable electronic safety-related systems - Part 1: General requirements (see Functional Safety and IEC 61508) |
EN 60529:1991/AC:2016-12 | DEGREES OF PROTECTION PROVIDED BY ENCLOSURES (IP CODE) (IEC 60529 EDITION 2.2 CORRIGENDUM 2:2015) |
IEC 60060-1:2010 | High-voltage test techniques - Part 1: General definitions and test requirements |
IEC 61754-15:2009 | Fibre optic interconnecting devices and passive components - Fibre optic connector interfaces - Part 15: Type LSH connector family |
IEC 60071-1:2006+AMD1:2010 CSV | Insulation co-ordination - Part 1: Definitions, principles and rules |
IEC 61000-4-29:2000 | Electromagnetic compatibility (EMC) - Part 4-29: Testing and measurement techniques - Voltage dips, short interruptions and voltage variations on d.c. input power port immunity tests |
IEC 61754-1:2013 | Fibre optic interconnecting devices and passive components - Fibre optic connector interfaces - Part 1: General and guidance |
EN 60721-3-4:1995/A1:1997 | CLASSIFICATION OF ENVIRONMENTAL CONDITIONS - PART 3: CLASSIFICATION OF GROUPS OF ENVIRONMENTAL PARAMETERS AND THEIR SEVERITIES - SECTION 4: STATIONARY USE AT NON-WEATHER-PROTECTED LOCATIONS |
IEC 60664-1:2007 | Insulation coordination for equipment within low-voltage systems - Part 1: Principles, requirements and tests |
EN 61000-4-13:2002/A2:2016 | ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-13: TESTING AND MEASUREMENT TECHNIQUES - HARMONICS AND INTERHARMONICS INCLUDING MAINS SIGNALLING AT A.C. POWER PORT, LOW FREQUENCY IMMUNITY TESTS (IEC 61000-4-13:2002/A2:2015) |
IEC 61000-4-13:2002+AMD1:2009+AMD2:2015 CSV | Electromagnetic compatibility (EMC) - Part 4-13: Testing and measurement techniques - Harmonics and interharmonics includingmains signalling at a.c. power port, low frequency immunity tests |
IEC 61850-3:2013 | Communication networks and systems for power utility automation - Part 3: General requirements |
EN 61000-4-10:2017 | Electromagnetic compatibility (EMC) - Part 4-10: Testing and measurement techniques - Damped oscillatory magnetic field immunity test |
EN 61000-4-29:2000 | Electromagnetic compatibility (EMC) - Part 4-29: Testing and measurement techniques - Voltage dips, short interruptions and voltage variations on d.c. input power port immunity tests |
EN 60721-3-3 : 95 AMD 2 97 | CLASSIFICATION OF ENVIRONMENTAL CONDITIONS - CLASSIFICATION OF GROUPS OF ENVIRONMENTAL PARAMETERS AND THEIR SEVERITIES - STATIONARY USE AT WEATHER-PROTECTED LOCATIONS |
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