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IEEE C57.13.6 - STANDARD FOR HIGH-ACCURACY INSTRUMENT TRANSFORMERS Organization: IEEE
Date: 2005-09-22
Description: This standard defines one new 0.15 accuracy class for voltage transformers, two new 0.15 accuracy classes for current transformers, two new current transformer burdens, and two new current transformer routine accuracy test methods.
DS/EN 60044-8 - INSTRUMENT TRANSFORMERS - PART 8: ELECTRONIC CURRENT TRANSFORMERS Organization: DS
Date: 2002-10-24
Description: Clause 12 covers the accuracy requirements that are necessary for electronic current transformers for use with electrical measuring instruments.
IEC 60044-1 - INSTRUMENT TRANSFORMERS - PART 1: CURRENT TRANSFORMERS - EDITION 1.2; EDITION 1:1996 CONSOLIDATED WITH AMENDMENTS 1:2000 AND 2:2002 Organization: IEC
Date: 2003-02-01
Description: This part of IEC 60044 applies to newly manufactured current transformers for use with electrical measuring instruments and electrical protective devices at frequencies from 15 Hz to 100 Hz.
CSA C60044-1 - INSTRUMENT TRANSFORMERS – PART 1: CURRENT TRANSFORMERS - FIRST EDITION; UPDATE NO. 1: JULY 2010 Organization: CSA
Date: 2007-03-01
Description: This part of IEC 60044 applies to newly manufactured current transformers for use with electrical measuring instruments and electrical protective devices at frequencies from 15 Hz to 100 Hz.
IEC 60044-8 - INSTRUMENT TRANSFORMERS - PART 8: ELECTRONIC CURRENT TRANSFORMERS - EDITION 1.0 Organization: IEC
Date: 2002-07-01
Description: Clause 13 covers the accuracy requirements that are necessary for electronic current transformers for use with electrical protective relays, and particularly for forms of protection in which the prime requirement is to maintain the accuracy up to several times the rated current.
CSA C60044-8 - INSTRUMENT TRANSFORMERS – PART 8: ELECTRONIC CURRENT TRANSFORMERS - FIRST EDITION Organization: CSA
Date: 2007-01-01
Description: A secondary converter can be used also for the acquisition of signals coming from conventional voltage instrument transformers or current instrument transformers and may be integrated into the merging unit.
CENELEC - EN 60044-1 - INSTRUMENT TRANSFORMERS - PART 1: CURRENT TRANSFORMERS - INCORPORATES AMENDMENTS A1: 2000 AND A2: 2003 Organization: CENELEC
Date: 1999-08-01
Description: This part of IEC 60044 applies to newly manufactured current transformers for use with electrical measuring instruments and electrical protective devices at frequencies from 15 Hz to 100 Hz.
IEC 60044-2 - INSTRUMENT TRANSFORMERS - PART 2: INDUCTIVE VOLTAGE TRANSFORMERS - EDITION 1.2; EDITION 1:1997 CONSOLIDATED WITH AMENDMENTS 1:2000 AND 2:2002 Organization: IEC
Date: 2003-02-01
Description: This part of IEC 60044 applies to new inductive voltage transformers for use with electrical measuring instruments and electrical protective devices at frequencies from 15 Hz to 100 Hz.
CSA C60044-2 - INSTRUMENT TRANSFORMERS – PART 2: INDUCTIVE VOLTAGE TRANSFORMERS - FIRST EDITION Organization: CSA
Date: 2007-03-01
Description: This part of IEC 60044 applies to new inductive voltage transformers for use with electrical measuring instruments and electrical protective devices at frequencies from 15 Hz to 100 Hz.
BSI - BS EN 60044-1 - INSTRUMENT TRANSFORMERS - PART 1: CURRENT TRANSFORMERS - AMD 13034: JUNE 2001; AMD 14397: JUNE 30, 2003 Organization: BSI
Date: 1999-11-15
Description: This part of IEC 60044 applies to newly manufactured current transformers for use with electrical measuring instruments and electrical protective devices at frequencies from 15 Hz to 100 Hz.
IEC 61869-6 - INSTRUMENT TRANSFORMERS – PART 6: ADDITIONAL GENERAL REQUIREMENTS FOR LOW-POWER INSTRUMENT TRANSFORMERS - EDITION 1.0 Organization: IEC
Date: 2016-04-01
Description: According to the technology, it is not absolutely necessary that all parts described in Figure 601 are included in the instrument transformer. As an example, for low-power passive transformers (LPITs without active electronic components) the blocks are composed only with passive components and there is no power supply.
BSI - BS 3938 - CURRENT TRANSFORMERS Organization: BSI
Date: 1973-02-02
Description: Current transformers for frequencies 14 Hz to 100 Hz for use with electrical measuring instruments and electrical protective devices.
DSF/FPREN 61869-10 - INSTRUMENT TRANSFORMERS - PART 10: ADDITIONAL REQUIREMENTS FOR LOW POWER STAND ALONE CURRENT SENSORS Organization: DS
Description: Clause 5.6.1001 covers the accuracy requirements that are necessary for low-power passive current transformers for use with electrical measuring instruments.
NEMA EI 21.2 - INSTRUMENT TRANSFORMERS FOR REVENUE METERING (125 KV BIL THROUGH 350 KV BIL) Organization: NEMA
Date: 1991-01-01
Description: These standards cover general requirements, ratings, accuracy classifications, burdens and pertinent dimensions applicable to instrument current and voltage transformers for revenue metering rated 125 kV BIL through 350 kV BIL.
IEEE C57.123 - GUIDE FOR TRANSFORMER LOSS MEASUREMENT Organization: IEEE
Date: 2010-06-17
Description: 2 This guide applies to liquid-immersed-power and distribution transformers, dry-type transformers, and step-voltage regulators. Additionally, it applies to both single- and three-phase transformers.
IEEE PC57.13.7 DRAFT - DRAFT STANDARD FOR DRAFT STANDARD FOR CURRENT TRANSFORMERS WITH MAXIMU MA SECONDARY CURRENT OF 250MA Organization: IEEE
Date: 2016-10-01
Description: Accuracy classes, burdens and test methods supplement but are not subordinate to IEEE C57.13™ Standard Requirements for Instrument Transformers. Purpose The Purpose of this standard is to provide the performance requirements for electrical system and test Interchangeability for current transformers with milli-ampere output.
IEC 61181 - MINERAL OIL-FILLED ELECTRICAL EQUIPMENT – APPLICATION OF DISSOLVED GAS ANALYSIS (DGA) TO FACTORY TESTS ON ELECTRICAL EQUIPMENT - EDITION 2.1 CONSOLIDATED REPRINT Organization: IEC
Date: 2012-03-01
Description: This International Standard specifies oil-sampling procedures, analysis requirements and procedures, and recommends sensitivity, repeatability and accuracy criteria for the application of dissolved gas analysis (DGA) to factory testing of new power transformers, reactors and instrument transformers filled with mineral insulating oil when DGA testing has been specified.
CENELEC - EN 61181 - MINERAL OIL-FILLED ELECTRICAL EQUIPMENT - APPLICATION OF DISSOLVED GAS ANALYSIS (DGA) TO FACTORY TESTS ON ELECTRICAL EQUIPMENT - INCORPORATES AMENDMENT A1: 2012 Organization: CENELEC
Date: 2007-04-01
Description: This International Standard specifies oil-sampling procedures, analysis requirements and procedures, and recommends sensitivity, repeatability and accuracy criteria for the application of dissolved gas analysis (DGA) to factory testing of new power transformers, reactors and instrument transformers filled with mineral insulating oil when DGA testing has been specified.
IEC 60145 - VAR-HOUR (REACTIVE ENERGY) METERS - EDITION 1.0 Organization: IEC
Date: 1963-01-01
Description: They do not apply to special types of var-hour meters except multi-rate meters. They do not apply to instrument transformers, even when used in conjunction with the meters covered by these recommendations.
DSF/EN 61181/FPRA1 - MINERAL OIL-FILLED ELECTRICAL EQUIPMENT - APPLICATION OF DISSOLVED GAS ANALYSIS (DGA) TO FACTORY TESTS ON ELECTRICAL EQUIPMENT Organization: DS
Description: Specifies oil-sampling procedures, analysis requirements and procedures, and recommends sensitivity, repeatability and accuracy criteria for the application of dissolved gas analysis (DGA) to factory testing of new power transformers, reactors and instrument transformers filled with mineral insulating oil when DGA testing has been specified.The most effective and useful application of DGA techniques to factory testing is during the performance of long-term tests, typically temperature-rise (heat run) and overloading tests on power transformers and reactors, also impulse tests on instrument transformers.

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