NBN EN 60404-6 : 2003

INTRODUCTION
1 Scope
2 Normative references
3 General principles of measurement
   3.1 Test specimen
   3.2 Windings
4 Temperature measurements
5 Measurement of magnetic permeability and magnetization curve
   using the voltmeter-ammeter method
   5.1 Introduction
   5.2 Apparatus and connections
   5.3 Determination of magnetic field strength
   5.4 Determination of the magnetic flux density
   5.5 Determination of the r.m.s amplitude permeability and the
       relative amplitude permeability
   5.6 Determination of magnetization curve
6 Measurement of specific total loss by the wattmeter method
   6.1 Principle of measurement
7 Measurement of magnetic properties using a digital impedance bridge
   7.1 Principle of measurement
   7.2 Apparatus
   7.3 Procedure
   7.4 Determination of the relative a.c. inductance permeability
   7.5 Determination of the specific total loss
8 Measurement of magnetic properties using digital methods
   8.1 Introduction
   8.2 Apparatus and connections
   8.3 Magnetizing current waveform
   8.4 Magnetizing winding
   8.5 Determination of the magnetic field strength
   8.6 Determination of the magnetic flux density
   8.7 Determination of the relative a.c. permeability
   8.8 Determination of a.c. magnetization curve
   8.9 Determination of the specific total loss
9 Uncertainties
10 Test report
Annex A (informative) Guidance on requirements for windings and
        instrumentation in order to minimise additional losses
Annex B (informative) Sinusoidal waveform control by digital means
Annex ZA (normative) Normative references to international
         publications with their corresponding European publications
Bibliography