{"id":80637,"date":"2024-10-17T18:46:25","date_gmt":"2024-10-17T18:46:25","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/ieee-c57-13-1978\/"},"modified":"2024-10-24T19:44:11","modified_gmt":"2024-10-24T19:44:11","slug":"ieee-c57-13-1978","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/ieee\/ieee-c57-13-1978\/","title":{"rendered":"IEEE C57.13 1978"},"content":{"rendered":"

New IEEE Standard – Inactive – Superseded. Superseded. Electrical, dimensional, and mechanical characteristics are covered, taking into consideration certain safety features, for current and inductively coupled voltage transformers of types generally used in the measurement of electricity and the control of equipment assoicated with the generation, transmission, and distribution of alternating current. The aim is to provide a basis for performance, interchangeability, and safety of equipment covered and to assist in the proper selection of such equipment. Accuracy classes for metering service are provided. The test code covers measurment and calculation of radio and phase angle, demagnetization, impedance and excitation measurements, polarity determination, resistance measurements, short-time characteristics, temperature rise tests, dielectric tests, and measurment of open-circuit voltage of current transformers.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
2<\/td>\nTypical Primary Connections for Voltage Transformers <\/td>\n<\/tr>\n
11<\/td>\n1 Scope
2 Definitions <\/td>\n<\/tr>\n
13<\/td>\n3 References
4 General Requirements
4.1 Service Conditions <\/td>\n<\/tr>\n
14<\/td>\nEffect of Air Density on Sparkover Voltage
4.3 Frequency
Temperature on Permissible Loading
1000 m (3300 ft) <\/td>\n<\/tr>\n
15<\/td>\nInstrument Transformer Creepage Distance and Wet Tests
55 “C Rise Current Transformer Basic Loading Characteristics <\/td>\n<\/tr>\n
16<\/td>\nBasic Impulse Insulation Levels and Dielectric Tests <\/td>\n<\/tr>\n
17<\/td>\nwith the Same Dielectric Test Requirements as Power Circuit Breakers <\/td>\n<\/tr>\n
18<\/td>\n4.6 Temperature Rise
4.8 Construction
Limits of Temperature Rise <\/td>\n<\/tr>\n
20<\/td>\n5 Accuracy Classes for Metering Service
Basis for Accuracy Classes
Metered Load <\/td>\n<\/tr>\n
21<\/td>\nStandard Accuracy Classes
Standard Accuracy Classes
6 Current Transformers
Terms in Which Ratings Shall be Expressed
6.2 Standard Burdens
Assignment of Accuracy Ratings for Metering Service
Accuracy Classes for Relaying
Factor of Metered Load Lagging) <\/td>\n<\/tr>\n
22<\/td>\nLimits of Accuracy Classes for Current Transformers for Metering Service
Basic Impulse Insulation Levels for Current Transformers <\/td>\n<\/tr>\n
23<\/td>\nLimits of Accuracy Classes for Voltage Transformers for Metering Service
the Same Dielectric Test Requirements as Power Circuit Breakers <\/td>\n<\/tr>\n
24<\/td>\nRatings for Current Transformers with One or Two Ratios
Current Transformer Ratings Multi-Ratio Type <\/td>\n<\/tr>\n
25<\/td>\nStandard Burdens for Current Transformers with 5 A Secondaries <\/td>\n<\/tr>\n
26<\/td>\nAmbient Air Temperature
Short-Time Current Ratings
Secondary Winding Induced Voltages
6.8 Nameplates
6.9 Terminals
6.10 Application Data <\/td>\n<\/tr>\n
27<\/td>\nTypical Excitation Curves for Multi-ratio C Class Current Transformers <\/td>\n<\/tr>\n
28<\/td>\n6.11 Routine Accuracy Tests
7 Voltage Transformers
Terms in Which Ratings Shall be Expressed
7.2 Standard Burdens
Assignment of Accuracy Ratings
Thermal Burden Ratings
Typical Overcurrent Ratio Curve <\/td>\n<\/tr>\n
30<\/td>\n7.5 Nameplates
7.6 Terminals
7.7 Short-circuit Capability
Ratings and Characteristics of Group 1 Voltage Transformers <\/td>\n<\/tr>\n
31<\/td>\n7.8 Application Data
Induced Potential Test
Ratings and Characteristics of Group 2 Voltage Transformers <\/td>\n<\/tr>\n
32<\/td>\n7.10 Routine Accuracy Test
8 Test Code
Ratings and Characteristics of Group 3 Voltage Transformers <\/td>\n<\/tr>\n
33<\/td>\n(Figs 6B and 6D)
Ratings and Characteristics of Group 5 Outdoor Voltage Transformers <\/td>\n<\/tr>\n
34<\/td>\nMeasurement and Calculation of Ratio and Phase Angle
Standard Burdens for Voltage Transformers <\/td>\n<\/tr>\n
37<\/td>\nCurrent Transformer Accuracy Test with Compensated Current Comparator
Current Transformer Accuracy Test with Composite Current Comparator <\/td>\n<\/tr>\n
39<\/td>\nand Operational Amplifier
Standard Current Transformer <\/td>\n<\/tr>\n
40<\/td>\nAccuracy Test with Direct-Null Network <\/td>\n<\/tr>\n
41<\/td>\nComparison Network) <\/td>\n<\/tr>\n
43<\/td>\nAccuracy Test with Current Comparator-Capacitance Ratio Method <\/td>\n<\/tr>\n
44<\/td>\nAccuracy Test with Resistance Divider Method (Direct-Null Network)
(Direct-Null Network) <\/td>\n<\/tr>\n
45<\/td>\nVoltage Transformer Accuracy Test with Comparative-Null Method <\/td>\n<\/tr>\n
46<\/td>\nTurns Base
Phasor Diagram of Fig <\/td>\n<\/tr>\n
48<\/td>\n8.2 Demagnetization
Method 1: Circuit for Demagnetizing Current Transformers <\/td>\n<\/tr>\n
49<\/td>\nImpedance and Excitation Measurements
Method 2: Circuit for Demagnetizing Current Transformers <\/td>\n<\/tr>\n
50<\/td>\nCircuit for Measuring Impedance: Three-Voltmeter Method <\/td>\n<\/tr>\n
51<\/td>\nCircuit for Measuring Impedance: Wattmeter Voltmeter Ammeter Method
Circuit for Measuring Excitation Current and Loss <\/td>\n<\/tr>\n
52<\/td>\n8.4 Polarity
Polarity by Inductive Kick <\/td>\n<\/tr>\n
53<\/td>\n8.5 Resistance Measurements
Known Polarity
Known Polarity
Polarity by Comparison of Winding Voltages <\/td>\n<\/tr>\n
54<\/td>\nFour-Terminal Network for Resistance Measurement <\/td>\n<\/tr>\n
55<\/td>\n8.6 Short-circuit Characteristics <\/td>\n<\/tr>\n
57<\/td>\nTemperature Rise Tests <\/td>\n<\/tr>\n
59<\/td>\n8.8 Dielectric Tests <\/td>\n<\/tr>\n
60<\/td>\nFull Voltage Duration for Induced Potential Tests <\/td>\n<\/tr>\n
62<\/td>\nMeasurement of Open-circuit Voltage of Current Transformers
Measurement of Open-circuit Voltage of Current Transformers <\/td>\n<\/tr>\n
63<\/td>\n9 Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

IEEE Standard Requirements for Instrument Transformers<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
IEEE<\/b><\/a><\/td>\n1978<\/td>\n66<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":80638,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2644],"product_tag":[],"class_list":{"0":"post-80637","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-ieee","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/80637","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/80638"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=80637"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=80637"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=80637"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}