• IEC 60044-7:1999

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

    Instrument transformers - Part 7: Electronic voltage transformers

    Available format(s):  Hardcopy, PDF, PDF 3 Users, PDF 5 Users, PDF 9 Users

    Superseded date:  27-04-2016

    Language(s):  English - French, English, French, Spanish, Castilian

    Published date:  17-12-1999

    Publisher:  International Electrotechnical Committee

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    Table of Contents - (Show below) - (Hide below)

    FOREWORD
    1 General
        1.1 Scope
        1.2 Normative references
        1.3 General block diagram of electronic
              voltage transformers
    2 Definitions
        2.1 General definitions
        2.2 Additional definitions for single-phase
              electronic protective voltage transformers
        2.3 Index of symbols
    3 General requirements
        3.1 General
        3.2 Information to be given for enquiries, tenders
              and orders
    4 Normal and special service conditions
        4.1 Normal service conditions
        4.2 Special service conditions
        4.3 Earthing system
    5 Ratings
        5.1 Standard values of rated voltages
        5.2 Standard values of rated output
        5.3 Standard values of rated voltage factor
        5.4 Standard values of rated auxiliary power
              supply voltage
        5.5 Standard reference values of other influencing
              parameters
    6 Design requirements
        6.1 Insulation requirements for primary voltage
              sensor
        6.2 Insulation requirements for low-voltage
              components
        6.3 Short-circuit withstand capability
        6.4 Limits of temperature rise
        6.5 Radio interference voltage requirements
        6.6 Transmitted overvoltage requirements
        6.7 Electromagnetic compatibility requirements
        6.8 Reliability
        6.9 Abnormal conditions withstand capability
        6.10 Abnormal conditions signalling
        6.11 Mechanical requirements
        6.12 Earthing terminals
    7 Classification of tests
        7.1 Type tests
        7.2 Routine tests
        7.3 Special tests
    8 Type tests
        8.1 Impulse test on primary voltage terminals
        8.2 Wet test for outdoor type electronic voltage
              transformers
        8.3 Tests for accuracy
        8.4 Test for abnormal conditions withstand capacity
        8.5 Radio interference voltage test
        8.6 Transmitted overvoltage test
        8.7 Electromagnetic compatibility tests
        8.8 Impulse voltage withstand test for low-voltage
              components
        8.9 Transient performance tests
    9 Routine tests
        9.1 Verification of terminal markings
        9.2 Power-frequency withstand tests on primary
              voltage terminals and partial discharge
              measurement
        9.3 Power-frequency voltage withstand test for
              low-voltage components
        9.4 Tests for accuracy
    10 Special tests
        10.1 Chopped lightning-impulse test on primary
              voltage terminals
        10.2 Measurement of capacitance and dielectric
              dissipation factor
        10.3 Mechanical strength tests
    11 Markings
        11.1 Rating plate markings
        11.2 Terminal markings
    12 Accuracy requirements for single-phase electronic
        measuring voltage transformers
        12.1 General requirements
        12.2 Maintenance requirements
        12.3 Accuracy class designation for electronic
              measuring voltage transformers
        12.4 Standard accuracy classes for electronic
              measuring voltage transformers
        12.5 Limits of voltage error and phase displacement
              for electronic measuring voltage transformers
    13 Additional requirements for single-phase electronic
        protective voltage transformers
        13.1 General requirements
        13.2 Maintenance requirements
        13.3 Accuracy class designation for electronic
              protective voltage transformers
        13.4 Standard accuracy classes for electronic
              protective voltage transformers
        13.5 Limits of voltage error and phase displacement
              for electronic protective voltage transformers
        13.6 Transient performance requirements
    Annex A (normative) Burdens for the transient response
    test
    Annex B (informative) Technical information for electronic
    voltage transformers
    Annex C (informative) Bibliography

    Abstract - (Show below) - (Hide below)

    Applies to newly manufactured electronic voltage transformers with analogue output, for use with electrical measuring instruments and electrical protective devices at frequencies from 15 Hz to 100 Hz. The standard covers optical arrangements with electronic components. Three-phase voltage transformers are not included, but some of the requirements apply.

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    Development Note Also numbered as BS EN 60044-7. (09/2005) Stability Date: 2016. (10/2012)
    Document Type Standard
    Publisher International Electrotechnical Committee
    Status Superseded
    Superseded By

    Standards Referenced By This Book - (Show below) - (Hide below)

    BS EN 61869-6 : 2016 INSTRUMENT TRANSFORMERS - PART 6: ADDITIONAL GENERAL REQUIREMENTS FOR LOW-POWER INSTRUMENT TRANSFORMERS
    15/30328086 DC BS EN 61557-12. 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. Power metering and monitoring devices (PMD)
    CEI EN 60044-8 : 2004 INSTRUMENT TRANSFORMERS - PART 8: ELECTRONIC CURRENT TRASFORMERS
    BS 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
    14/30284930 DC : 0 BS EN 62689-2 ED 1.0 - CURRENT AND VOLTAGE SENSORS OR DETECTORS TO BE USED FOR FAULT PASSAGE INDICATION PURPOSES - PART 2: GENERAL PRINCIPLES AND REQUIREMENTS
    BS EN 60255-1 : 2010 MEASURING RELAYS AND PROTECTION EQUIPMENT - PART 1: COMMON REQUIREMENTS
    10/30215568 DC : 0 BS EN 60255-121 - MEASURING RELAYS AND PROTECTION EQUIPMENT - PART 121: FUNCTIONAL REQUIREMENTS FOR DISTANCE PROTECTION
    EN 62689-1 : 2016 CURRENT AND VOLTAGE SENSORS OR DETECTORS, TO BE USED FOR FAULT PASSAGE INDICATION PURPOSES - PART 1: GENERAL PRINCIPLES AND REQUIREMENTS (IEC 62689-1:2016)
    BS EN 61557-12:2008 Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. Equipment for testing, measuring or monitoring of protective measures Performance measuring and monitoring devices (PMD)
    17/30326671 DC : 0 BS ISO 27919-1 - CARBON DIOXIDE CAPTURE - PART 1: PERFORMANCE EVALUATION METHODS FOR POST-COMBUSTION CO[2] CAPTURE INTEGRATED WITH A POWER PLANT
    BS EN 62689-1:2016 (published 2017-01) Current and voltage sensors or detectors, to be used for fault passage indication purposes General principles and requirements
    11/30241212 DC : DRAFT JAN 2011 BS EN 60688 - ELECTRICAL MEASURING TRANSDUCERS FOR CONVERTING A.C. ELECTRICAL QUANTITIES TO ANALOGUE OR DIGITAL SIGNALS
    EN 62689-2 : 2017 CURRENT AND VOLTAGE SENSORS OR DETECTORS, TO BE USED FOR FAULT PASSAGE INDICATION PURPOSES - PART 2: SYSTEM ASPECTS (IEC 62689-2:2016)
    12/30268049 DC : 0 BS EN 62689-1 - 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 60688:2013 Electrical measuring transducers for converting A.C. and D.C. electrical quantities to analogue or digital signals
    DD IEC TS 61850-2 : 2003 COMMUNICATION NETWORKS AND SYSTEMS IN SUBSTATIONS - PART 2: GLOSSARY
    BS EN 50327:2003 Railway applications. Fixed installations. Harmonisation of the rated values for converter groups and tests on converter groups
    14/30300261 DC : 0 BS EN 62689-1 ED 1.0 - CURRENT AND VOLTAGE SENSORS OR DETECTORS TO BE USED FOR FAULT PASSAGE INDICATION PURPOSES - PART 1: SYSTEM ASPECTS
    BS EN 62689-2:2017 Current and voltage sensors or detectors, to be used for fault passage indication purposes System aspects
    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
    03/113813 DC : 0 IEC 60034-2. ED.4 - ROTATING ELECTRICAL MACHINES - PART 2: METHODS FOR DETERMINING LOSSES AND EFFICIENCY FROM TESTS (EXCLUDING MACHINES FOR TRACTION VEHICLES)
    IEC 61557-12:2007 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)
    CLC/TS 50549-2:2015 REQUIREMENTS FOR GENERATING PLANTS TO BE CONNECTED IN PARALLEL WITH DISTRIBUTION NETWORKS - PART 2: CONNECTION TO A MV DISTRIBUTION NETWORK
    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
    NF EN 60044-8 : 2006 INSTRUMENT TRANSFORMERS - PART 8: ELECTRONIC CURRENT TRANSDUCERS
    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 60044-8:2002 INSTRUMENT TRANSFORMERS - PART 8: ELECTRONIC CURRENT TRANSFORMERS
    CSA C60044-8 :2007 INSTRUMENT TRANSFORMERS - PART 8: ELECTRONIC CURRENT TRANSFORMERS
    IEC TS 61850-2:2003 Communication networks and systems in substations - Part 2: Glossary
    CSA C60044-8 : 2007 : R2011 INSTRUMENT TRANSFORMERS - PART 8: ELECTRONIC CURRENT TRANSFORMERS
    BS EN 60044-8:2002 Instrument transformers Electronic current transformers
    CSA C60044-8 : 2007 : R2016 INSTRUMENT TRANSFORMERS - PART 8: ELECTRONIC CURRENT TRANSFORMERS
    I.S. EN 62689-2:2017 CURRENT AND VOLTAGE SENSORS OR DETECTORS, TO BE USED FOR FAULT PASSAGE INDICATION PURPOSES - PART 2: SYSTEM ASPECTS
    IEEE C37.241 : 2017 APPLICATION OF OPTICAL INSTRUMENT TRANSFORMERS FOR PROTECTIVE RELAYING
    I.S. EN 61869-6:2016 INSTRUMENT TRANSFORMERS - PART 6: ADDITIONAL GENERAL REQUIREMENTS FOR LOW-POWER INSTRUMENT TRANSFORMERS
    S.R. CLC/TS 50549-2:2015 REQUIREMENTS FOR GENERATING PLANTS TO BE CONNECTED IN PARALLEL WITH DISTRIBUTION NETWORKS - PART 2: CONNECTION TO A MV DISTRIBUTION NETWORK
    I.S. EN 60688:2013 ELECTRICAL MEASURING TRANSDUCERS FOR CONVERTING A.C. AND D.C. ELECTRICAL QUANTITIES TO ANALOGUE OR DIGITAL SIGNALS (IEC 60688:2012 (EQV))
    I.S. EN 61557-12:2008 ELECTRICAL SAFETY IN LOW VOLTAGE DISTRIBUTION SYSTEMS UP TO 1000 V A.C. AND 1500 V D.C. - EQUIPMENT FOR TESTING, MEASURING OR MONITORING OF PROTECTIVE MEASURES - PART 12: PERFORMANCE MEASURING AND MONITORING DEVICES (PMD)
    NF EN 60255-1 : 2010 MEASURING RELAYS AND PROTECTION EQUIPMENT - PART 1: COMMON REQUIREMENTS
    CEI EN 60255-1 : 2011 MEASURING RELAYS AND PROTECTION EQUIPMENT - PART 1: COMMON REQUIREMENTS
    CEI EN 61557-12 : 2013 ELECTRICAL SAFETY IN LOW VOLTAGE DISTRIBUTION SYSTEMS UP TO 1000 V A.C. AND 1500 V D.C. - EQUIPMENT FOR TESTING, MEASURING OR MONITORING OF PROTECTIVE MEASURES - PART 12: PERFORMANCE MEASURING AND MONITORING DEVICES (PMD)
    IEC 62689-2:2016 Current and voltage sensors or detectors, to be used for fault passage indication purposes - Part 2: System aspects
    CEI EN 62271-205 : 2012 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 205: COMPACT SWITCHGEAR ASSEMBLIES FOR RATED VOLTAGES ABOVE 52 KV
    NF EN 62271-205 : 2008 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 205: COMPACT SWITCHGEAR ASSEMBLIES FOR RATED VOLTAGES ABOVE 52 KV
    I.S. EN 60255-1:2010 MEASURING RELAYS AND PROTECTION EQUIPMENT - PART 1: COMMON REQUIREMENTS
    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
    IEC 61972:2002 Method for determining losses and efficiency of three-phase cage induction motors
    I.S. EN 62271-205:2008 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 205: COMPACT SWITCHGEAR ASSEMBLIES FOR RATED VOLTAGES ABOVE 52 KV
    IEC 61869-9:2016 Instrument transformers - Part 9: Digital interface for instrument transformers
    IEC 62689-1:2016 Current and voltage sensors or detectors, to be used for fault passage indication purposes - Part 1: General principles and requirements
    IEC 60044-8:2002 Instrument transformers - Part 8: Electronic current transformers
    IEC 60255-1:1967 Electrical relays - Part 1: Instantaneous all-or-nothing relays
    IEC 60688:2012 Electrical measuring transducers for converting A.C. and D.C. electrical quantities to analogue or digital signals
    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
    IEC TR 61869-103:2012 Instrument transformers - The use of instrument transformers for power quality measurement
    IEC 62271-205:2008 High-voltage switchgear and controlgear - Part 205: Compact switchgear assemblies for rated voltages above 52 kV
    UNE-EN 60688:2013 Electrical measuring transducers for converting A.C. and D.C. electrical quantities to analogue or digital signals
    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 (IEC 61869-6:2016)
    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
    EN 60688:2013 ELECTRICAL MEASURING TRANSDUCERS FOR CONVERTING A.C. AND D.C. ELECTRICAL QUANTITIES TO ANALOGUE OR DIGITAL SIGNALS (IEC 60688:2012)
    EN 50327 : 2003 AMD 1 2005 RAILWAY APPLICATIONS - FIXED INSTALLATIONS - HARMONISATION OF THE RATED VALUES FOR CONVERTER GROUPS AND TESTS ON CONVERTER GROUPS
    EN 61557-12 : 2008 ELECTRICAL SAFETY IN LOW VOLTAGE DISTRIBUTION SYSTEMS UP TO 1000 V A.C. AND 1500 V D.C. - EQUIPMENT FOR TESTING, MEASURING OR MONITORING OF PROTECTIVE MEASURES - PART 12: PERFORMANCE MEASURING AND MONITORING DEVICES (PMD)
    EN 60255-1 : 2010 MEASURING RELAYS AND PROTECTION EQUIPMENT - PART 1: COMMON REQUIREMENTS
    EN 60044-8:2002 Instrument transformers - Part 8: Electronic current transformers

    Standards Referencing This Book - (Show below) - (Hide below)

    IEC 61000-4-8 : 2.0 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-8: TESTING AND MEASUREMENT TECHNIQUES - POWER FREQUENCY MAGNETIC FIELD IMMUNITY TEST
    IEC 61000-4-10 : 2.0 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-10: TESTING AND MEASUREMENT TECHNIQUES - DAMPED OSCILLATORY MAGNETIC FIELD IMMUNITY TEST
    IEC 60255-22-1:2007 Measuring relays and protection equipment - Part 22-1: Electrical disturbance tests - 1 MHz burst immunity tests
    IEC 60038:2009 IEC standard voltages
    IEC 60270:2000+AMD1:2015 CSV High-voltage test techniques - Partial discharge measurements
    IEC 61000-4-4 : 3.0EN+(REDLINE+VERSION) ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-4: TESTING AND MEASUREMENT TECHNIQUES - ELECTRICAL FAST TRANSIENT/BURST IMMUNITY TEST
    IEC 61000-4-1:2006 Electromagnetic compatibility (EMC) - Part 4-1: Testing and measurement techniques - Overview of IEC 61000-4 series
    IEC 60050-601:1985 International Electrotechnical Vocabulary (IEV) - Part 601: Generation, transmission and distribution of electricity - General
    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 60044-2:1997+AMD1:2000+AMD2:2002 CSV Instrument transformers - Part 2 : Inductive voltage transformers
    IEC 60255-11:2008 Measuring relays and protection equipment - Part 11: Voltage dips, short interruptions, variations and ripple on auxiliary power supply port
    IEC 61000-4-12 : 3.0 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-12: TESTING AND MEASUREMENT TECHNIQUES - RING WAVE IMMUNITY TEST
    IEC 60694:1996+AMD1:2000+AMD2:2001 CSV Common specifications for high-voltage switchgear and controlgear standards
    IEC 61000-4-9 : 2.0 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-9: TESTING AND MEASUREMENT TECHNIQUES - IMPULSE MAGNETIC FIELD IMMUNITY TEST
    EN 50081-2 : 1993 ELECTROMAGNETIC COMPATIBILITY - GENERIC EMISSION STANDARD - INDUSTRIAL ENVIRONMENT
    IEC 60617-1:1985 Graphical symbols for diagrams. Part 1: General information, general index. Cross-reference tables
    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 60255-5:2000 Electrical Relays - Part 5: Insulation coordination for measuring relays and protection equipment - Requirements and tests
    IEC 60255-6:1988 Electrical relays - Part 6: Measuring relays and protection equipment
    IEC 60050-321:1986 International Electrotechnical Vocabulary (IEV) - Part 321: Instrument transformers
    CISPR 11:2015 RLV Industrial, scientific and medical equipment - Radio-frequency disturbance characteristics - Limits and methods of measurement
    IEC 60186:1987 Voltage transformers
    IEC 60060-1:2010 High-voltage test techniques - Part 1: General definitions and test requirements
    IEC 60071-1:2006+AMD1:2010 CSV Insulation co-ordination - Part 1: Definitions, principles and rules
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