• EN 60044-7 : 2000

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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

    Superseded date:  01-12-2016

    Language(s): 

    Published date:  24-01-2000

    Publisher:  European Committee for Standards - Electrical

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

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

    Abstract - (Show below) - (Hide below)

    Applies to newly manufactured electronic voltage transformers with analogue output, intended for use with electrical measuring instruments and electrical protective devices at frequencies between 15 Hz and 100 Hz.

    General Product Information - (Show below) - (Hide below)

    Committee TC 38
    Development Note 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)
    Document Type Standard
    Publisher European Committee for Standards - Electrical
    Status Superseded
    Superseded By

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

    I.S. EN 50327:2003 RAILWAY APPLICATIONS - FIXED INSTALLATIONS - HARMONISATION OF THE RATED VALUES FOR CONVERTER GROUPS AND TESTS ON CONVERTER GROUPS
    BS EN 60255-1:2010 Measuring relays and protection equipment Common requirements
    I.S. EN 60044-8:2002 INSTRUMENT TRANSFORMERS - PART 8: ELECTRONIC CURRENT TRANSFORMERS
    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
    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)
    BS EN 60044-8:2002 Instrument transformers Electronic current transformers
    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
    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
    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
    I.S. EN 62271-205:2008 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 205: COMPACT SWITCHGEAR ASSEMBLIES FOR RATED VOLTAGES ABOVE 52 KV
    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
    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)
    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
    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
    BS EN 61869-6:2016 INSTRUMENT TRANSFORMERS - PART 6: ADDITIONAL GENERAL REQUIREMENTS FOR LOW-POWER INSTRUMENT TRANSFORMERS
    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
    BS EN 62271-205:2008 High-voltage switchgear and controlgear Compact switchgear assemblies for rated voltages above 52 kV
    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 60044-8:2002 Instrument transformers - Part 8: Electronic current transformers

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

    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 60050-601:1985 International Electrotechnical Vocabulary (IEV) - Part 601: Generation, transmission and distribution of electricity - General
    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 60694:1996+AMD1:2000+AMD2:2001 CSV Common specifications for high-voltage switchgear and controlgear standards
    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 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 60071-1:2006+AMD1:2010 CSV Insulation co-ordination - Part 1: Definitions, principles and rules
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