MI 2893 / MI 2892 / MI 2885 Measurements
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6.2.23 Phase angle
6.2.24 400Hz systems specification
Passband (-3dB): 0 ÷ 5,7kHz
Stopband (-80dB): > 6,44 kHz
6.2.25 VFD (Variable frequency drive) systems specification
Passband (-3dB): 0 ÷ 782 Hz
Stopband (-80dB): > 883 Hz
6.2.26 Differences in specification between 400Hz, VFD and 50/60 Hz systems
RVC - Rapid Voltage Changes
Waveform / inrush recorder
(1)
Identical technical specification (accuracy, measurement ranges, etc) as on 50Hz/60Hz systems
(2)
On 3-phase 4-wire systems measurement are performed on 3 voltage and 4 current channels, channel
U
N-GND
is not used.
(3)
Number of harmonics depends on voltage/current frequency 5÷16Hz – 20 harmonics, 16÷33Hz 13
harmonics, 33 ÷ 120Hz 5 harmonics