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BS EN IEC 62044-3:2023 – TC

BS EN IEC 62044-3:2023 – TC

$258.95

Tracked Changes. Cores made of soft magnetic materials. Measuring methods – Magnetic properties at high excitation level

Published By Publication Date Number of Pages
BSI 2023 113
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PDF Pages PDF Title
62 undefined
65 Annex ZA (normative)Normative references to international publicationswith their corresponding European publications
66 English
CONTENTS
69 FOREWORD
71 INTRODUCTION
72 1 Scope
2 Normative references
3 Terms, definitions and symbols
3.1 Terms and definitions
74 Figures
Figure 1 – Pulse excitation without biasing field
Figure 2 – Pulse excitation with biasing field
76 3.2 Symbols
77 4 General requirements for measurements at high excitation level
4.1 General statements
4.1.1 Relation to practice
4.1.2 Core effective parameters and material properties
4.1.3 Reproducibility of the magnetic state
4.2 Measuring coil
4.2.1 General
78 4.2.2 Number of turns
4.2.3 Single winding and double winding
79 4.3 Mounting of cores consisting of more than one part
4.4 Measuring equipment
82 5 Specimens
6 Measuring procedures
6.1 General procedure
83 6.2 Measuring method for the effective amplitude permeability
6.2.1 Purpose
6.2.2 Principle of the measurement
6.2.3 Circuit and equipment
6.2.4 Measuring procedure
84 6.2.5 Calculation
6.3 Measuring methods for the power loss
6.3.1 Purpose
6.3.2 Methods and principles of the measurements
85 Tables
Table 1 – Some multiplying methods and related domains of excitation waveforms, acquisition, processing
87 7 Information to be stated
88 8 Test report
89 Annexes
Annex A (informative) Basic circuits and related equipment for the measurement of amplitude permeability
90 Figure A.1 – Basic circuits for the measurement of amplitude permeability
91 Annex B (informative) Root-mean-square method for the measurement of power loss – Example of a circuit and related procedure
B.1 Method of measurement
B.2 Measuring coil
Figure B.1 – Example of a measuring circuit for the RMS method
92 B.3 Measuring equipment
B.4 Measuring procedure
93 B.5 Pulse measurement and accuracy
94 Annex C (informative) Multiplying methods for the measurement of power loss – Basic circuits and related measurement procedures
C.1 Basic circuits
95 C.2 Requirements
C.3 Measuring coil
C.4 Accuracy
Figure C.1 – Basic circuits for multiplying methods
96 C.5 V-A-W (volt-ampere-watt) meter method
C.6 Impedance analyzer method
C.7 Digitizing method
97 C.8 Vector spectrum method
C.9 Cross-power method
98 Annex D (informative) Reflection method for the measurement of power loss – Basic circuit and related measurement procedures
D.1 Basic circuit
D.2 Requirements
D.3 Measuring coil
Figure D.1 – Basic circuit
99 D.4 Measuring procedure and accuracy
100 Annex E (informative) Calorimetric measurement methods for the measurement of power loss
E.1 Basic circuit
Figure E.1 – Basic circuit and related measurement procedures – Measurement set-up
101 E.2 Requirements
E.3 Measuring coil
E.4 Accuracy
E.5 Measurements at thermal equilibrium
E.5.1 General
E.5.2 Measurement across calibrated thermal resistance
102 E.5.3 Measurement by matching the temperature rise in the core and resistor
E.6 Measurements at non-thermal equilibrium
103 Annex F (normative) Magnetic properties under pulse condition
F.1 Object
F.2 Measurement methods
F.3 Principle of the methods
F.4 Specimens
F.5 Measuring coil
104 F.6 Measuring equipment
105 F.7 Measuring procedure
F.7.1 General
106 F.7.2 Measurement of pulse inductance factor and magnetizing current
Figure F.1 – Voltage pulse parameters
107 F.7.3 Measurement of the non-linearity of the magnetizing current
Figure F.2 – Typical measuring waveforms
108 F.8 Calculation
Figure F.3 – Non-linearity of magnetizing current
110 Annex G (informative) Examples of circuits for pulse measurements
Figure G.1 – Measurement without bias and with single pulses
Figure G.2 – Measurement with bias and with repeated pulses
111 Bibliography

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BS EN IEC 62044-3:2023 - TC
$258.95