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The power frequency magnetic field is generated by the power frequency current in the conductor, or a very small amount of it is generated by other accessories (such as the leakage flux of the transformer). Power frequency magnetic field may affect the reliable operation of equipment and system. The power frequency magnetic field generator is used to evaluate the performance of household, commercial and industrial electrical and electronic equipment in power frequency (continuous and short-time) magnetic field. The products meet the requirements of new standards such as iec61000-4-8 and gb/t17626.8.
Product model
magnetic field intensity
current waveform
time interval
Current distortion rate
operation mode
Operation method
Working power supply
ambient temperature
PFM 1200
0a/m ~ 1200a/m continuously adjustable
50Hz or 60Hz sine wave
1 ~9999s
<5%
Current range for continuous operation: 1A ~ 500A, 1~9999s/ current range for short-time operation: 501a~1200a, 1~5s
Manual, automatic
AC220V 50/60Hz
15 ℃~35 C