IEEE 393 1992

$58.50

IEEE Standard for Test Procedures for Magnetic Cores

Published By	Publication Date	Number of Pages
IEEE	1992	58

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Description

Revision Standard – Active. Reaffirmed September 2007. This standard specifies applicable tests to describe the significant properties of magnetic cores used in electronic applications. It is primarily concerned with magnetic cores of the type used in electronics transformers, magnetic amplifiers, inductors, and related devices. However, many of the tests specified herein are general in scope and adaptable to magnetic cores used in many other applications. Standards covered by this publication include tests for specifying or measuring, or both, permeability, core loss, apparent core, induction, hysteresis, thermal characteristics, and other properties of all commonly used typoes of magnetic cores.

PDF Catalog

PDF Pages	PDF Title
8	1 Scope Specific Types of Magnetic Cores to Which this Standard Applies Specific Applications to Which this Standard Is Directed References and Related Standards 1.3.1 References General Related Standards
9	2 Definitions 3 Configurations Effect of the Configuration or Geometry of the Core Material on Finished Product
10	Basic Core Shapes Epstein Strip Core 4 Materials 4.1 Ferromagnetic 4.2 Ferrites
11	Symbols and Terms Effective Parameters Permeability 5.2.1 Initial Permeability 5.2.2 Amplitude Permeability 5.2.3 Maximum Permeability
12	5.2.4 Incremental Permeability 5.2.5 Pulse Permeability 5.2.6 Complex Permeability 5.2.7 Differential Permeability 5.2.8 Impedance Permeability 5.2.9 Peak Permeability Core Loss Specific Core Loss Apparent Core Loss
13	Specific Apparent Core Loss Equivalent Series Circuit Elements Equivalent Parallel Circuit Elements Loss Angle (Dissipation Factor) Relative Dissipation Factor Quality Factor Q Legg‚s Equation Parameters
14	Saturation Induction B Peak Induction B Residual Induction B 5.10.1 Remanent Induction 5.10.2 Squareness Ratio Coercive Field or Force H and H2 Reset Field Strengths 5.12.1 AH Reset Gain G Temperature Coefficient Temperature Factor of Permeability Curie Temperature or Curie Point T Disaccommodation
15	5.16.1 Disaccommodation Factor Magnetic Aging Turns Factor Induction Factor AL Volt-Second.Area Hysteresis Constant q6 5.21.1 Hysteresis Core Constant qi
16	Test Methods Permeability Measurements Tests for Evaluating Cores With Pulsed Excitation Reference Pulse Shape
17	Pulse Magnetization Characteristics Reference Pulse Shape
18	Pulse Magnetization Characteristic
19	Test Circuit A
21	Pulse Magnetization Characteristics With and Without Bias
22	Core Pulse Magnetization Characteristic
23	6.2.3 Pulse Permeability Applications Pulse Permeability Test Circuit
28	Bridge Measurements
29	Series Bridge Low Impedance Series Bridge (Low Q>
30	Parallel Bridge (High Q) Parallel Bridge (Low Q) Core Loss and Apparent Core Loss Core-Loss Measurements With SinusoidaWoltage Excitation Core-Loss Measurements in Core Excited by Nonsinusoidal Signals
34	Block Diagram of Wattmeter
35	Saturing Core Tests Constant-Current Flux-Reset (CCFR) Core Test Method Test Points for the Constant-Current Flux-Reset Core Test Method Circuit for the Constant-Current Flux-Reset Core Test Method
38	Sine-Current-Excitation Core Test Method
39	Basic Circuit for Sine-Current Excitation Core Tester
42	Measuring Marker Traces
43	Presenting Magnetic Data on Core Materials Methods to Obtain Hysteresis Loops and Magnetization Curves 6.6.1 General Considerations
45	Elementary DC Hysteresis Loop Tester
46	Simplified Hysteresigraph
47	Direct Measurement of Flux Density 6.7.1 Hall-Effect Gaussmeter
48	Dynamic Hysteresis Loop Measurement 6.8.1 Oscilloscope Techniques
49	Voltmeter-hmeter Methods 6.9.1 Impedance Permeability 6.9.2 Sine-Flux Test
50	Sine-Flux Impedance Permeability Test
51	6.9.3 Sine-Current Test Sine-Current Impedance Permeability Test
52	Calculation of Mean Path Length Calculation of Flux-Path Cross-Sectional Area Standard Test Conditions Calculations of Induced Voltage 6.9.8 Test Procedure 7 Bibliography
55	Methods to Obtain Hysteresis Loops and Magnetization Curves With Older Equipment A1 Determination of the Basic Symmetrical Hysteresis Loop Hysteresis Loop Test Circuit
56	Hysteresis Loop
57	A2 Determination of the Normal Magnetization Characteristic A3 Determination of the Virgin Magnetization Curve