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IEEE C57.13.5-2019

IEEE C57.13.5-2019

$59.58

IEEE Standard for Performance and Test Requirements for Instrument Transformers of a Nominal System Voltage of 115 kV and Above

Published By Publication Date Number of Pages
IEEE 2019 81
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Revision Standard – Active. Single-phase instrument transformers of a nominal system voltage of 115 kV and above with capacitive insulation system for line-to-ground connection and for both indoor and outdoor application are discussed in this standard. This standard is intended for use as a supplement to IEEE Std C57.13-2016 and as a basis for performance and safety of equipment. Test sequences, criteria, methods, and documentation for the test are also described.

PDF Catalog

PDF Pages PDF Title
1 IEEE Std C57.13.5™-2019 Front cover
2 Title page
4 Important Notices and Disclaimers Concerning IEEE Standards Documents
7 Participants
9 Introduction
10 Contents
12 1. Overview
1.1 Scope
1.2 Purpose
1.3 Word usage
13 2. Normative references
3. Definitions
15 4. General
4.1 Insulation requirements
19 4.2 Mineral oil requirements
4.3 Requirements for accuracy and accuracy calibration systems
4.4 Mechanical performance requirements
21 4.5 Thermal performance requirements
4.6 Ground shield requirements
4.7 Dissolved gas and water content requirements for new oil-immersed transformers
22 4.8 Endurance capability for fast high voltage transient
4.9 Performance of internal arc protection
4.10 Identification of test sample in the type test report
4.11 Secondary short-circuit capability for voltage transformers
23 4.12 Relaying current transformers having an anti-remanence gap
4.13 Gas filling pressure and gas monitoring for gas-filled instrument transformers
5. Test conditions
24 6. Classification of tests
6.1 Routine tests and test sequences
27 6.2 Type tests and test sequences
30 6.3 Special tests
7. Routine test procedures (applicable to instrument transformers)
7.1 Verification of terminal markings and polarity
7.2 Capacitance and dissipation factor test
7.3 Applied voltage test on secondary windings
31 7.4 Insulation resistance test on windings
7.5 Lightning impulse voltage test on the primary winding
32 7.6 Power frequency voltage withstand test
7.7 Partial discharge test
33 7.8 Dissolved gas and water content analysis for oil-immersed transformers (of a nominal system voltage of 345 kV and above)
7.9 Sealing test
7.10 Ground shield check
34 7.11 Tests on the mineral oil
7.12 Inspection and routine pressure test for enclosure of gas-filled instrument transformers
8. Routine test procedures (applicable to current transformers)
8.1 Inter-turn over-voltage test
35 8.2 Accuracy test for the metering rated current transformers
8.3 Resistance measurement of relaying rated secondary windings
36 8.4 Performance characteristics of relaying current transformers
37 9. Routine test procedures (applicable to voltage transformers)
9.1 Applied voltage test on the neutral terminal
9.2 Accuracy test
9.3 Excitation characteristics with respect to rated voltage factor
38 9.4 Resistance measurement of windings
10. Type test procedures (applicable to instrument transformers)
10.1 Dissolved gas and water content analysis
10.2 Mechanical test
39 10.3 Lightning impulse voltage test on the primary winding
40 10.4 Switching impulse voltage test on the primary winding – wet
41 10.5 External radio influence voltage (RIV) test
10.6 Power frequency voltage withstand test – wet
10.7 Power frequency voltage withstand/partial discharge test – dry
42 10.8 Temperature rise test
44 10.9 Short-time mechanical and thermal rating test
45 10.10 Accuracy performance test
10.11 Creepage distance measurement
46 10.12 Leakage test at low temperature for gas-filled instrument transformers
10.13 Burst test on enclosure for gas-filled instrument transformers
11. Type test procedure (applicable to current transformers)
11.1 Secondary open-circuit voltage withstand test
47 12. Special test procedures
12.1 Endurance chopped wave test
48 12.2 Internal arc test
49 12.3 Seismic qualification
13. Identification of test sample in the type test report
50 13.1 Document package related to transformer type
51 Annex A (normative) Test code
A.1 Temperature rise test
52 A.2 Leakage test at low temperature for gas-filled instrument transformers
53 A.3 Endurance chopped wave test
55 Annex B (normative) Validity of type test reports and guidance for reviewing the design comparison report for the modified design
B.1 Validity of type test reports
B.2 Guidance of reviewing the comparison report
57 Annex C (normative) Current transformers used for the detection of unbalance current of capacitor banks
C.1 General
C.2 Definition
C.3 General requirements
63 C.4 Specific requirements
68 Annex D (normative) Gas tightness
D.1 Specification
D.2 Testing
D.3 Cumulative test method and calibration procedure
72 D.4 Time between replenishments
73 Annex E (informative) Dielectric tests performed at an altitude of 1000 m or less for instrument transformers designed for installation at altitudes greater than 1000 m
74 Annex F (informative) Dielectric tests, oil sampling, and other related measurements in the field
75 Annex G (informative) Internal arc protection for instrument transformers
76 Annex H (informative) Rated voltage factor
77 Annex I (informative) Current transformers having transient performance requirements
78 Annex J (informative) Electrical endurance test, explanatory note
79 Annex K (informative) Bibliography
81 Back cover

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