BS EN IEC 60404-6:2018
$142.49
Magnetic materials – Methods of measurement of the magnetic properties of magnetically soft metallic and powder materials at frequencies in the range 20 Hz to 100 kHz by the use of ring specimens
| Published By | Publication Date | Number of Pages |
| BSI | 2018 | 30 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 7 | English CONTENTS |
| 9 | FOREWORD |
| 11 | 1 Scope 2 Normative references |
| 12 | 3 Terms and definitions 4 General principles of measurement 4.1 Principle of the ring method 4.2 Test specimen |
| 13 | 4.3 Windings |
| 14 | 5 Temperature measurements 6 Measurement of the relative amplitude permeability and the AC magnetization curve 6.1 General 6.2 Apparatus and connections |
| 15 | 6.3 Waveform of induced secondary voltage or magnetizing current Figures Figure 1 – Circuit of the measurement apparatus |
| 16 | 6.4 Determination of characteristics 6.4.1 Determination of the peak value of the magnetic field strength |
| 17 | 6.4.2 Determination of the peak value of the magnetic flux density 6.4.3 Determination of the r.m.s. amplitude permeability and the relative amplitude permeability |
| 18 | 6.4.4 Determination of the AC magnetization curve 7 Measurement of the specific total loss by the wattmeter method 7.1 Principle of measurement |
| 19 | Figure 2 – Circuit of the conventional analogue wattmeter method (also representing the metrological principle of the digital wattmeter method) Figure 3 – The wattmeter method when connected withthe digital sampling technique (example of circuit) |
| 20 | 7.2 Voltage measurement 7.2.1 Average type voltmeter 7.2.2 R.M.S. type voltmeter 7.3 Power measurement 7.4 Procedure for the measurement of the specific total loss 7.5 Determination of the specific total loss |
| 21 | 8 Uncertainties 9 Test report |
| 22 | Annex A (informative) Guidance on requirements for windings and instrumentation in order to minimise additional losses A.1 General A.2 Reduction of additional losses |
| 23 | Annex B (informative) Digital sampling technique for the determination of magnetic properties and numerical air flux compensation B.1 General B.2 Technical details and requirements |
| 27 | B.3 Calibration aspects B.4 Numerical air flux compensation |
| 28 | Annex C (informative) Sinusoidal waveform control by digital means |
| 29 | Bibliography |
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BS EN IEC 60404-6:2018+A1:2021
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