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METREL MI 2893 User Manual

METREL MI 2893
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MI 2893 / MI 2892 / MI 2885 Measurements
228
6.2.23 Phase angle
Measuring range
Resolution
Accuracy
-180.0° ÷ 180.0°
0.1°
± 0.6°
6.2.24 400Hz systems specification
Sampling frequency:
Normal operation
12,2 kSamples/sec
Antialiasing filter
Passband (-3dB): 0 ÷ 5,7kHz
Stopband (-80dB): > 6,44 kHz
Cycle aggregation:
50 cycles
6.2.25 VFD (Variable frequency drive) systems specification
Sampling frequency:
Normal operation
1,7 kSamples/sec
Antialiasing filter
Passband (-3dB): 0 ÷ 782 Hz
Stopband (-80dB): > 883 Hz
Cycle aggregation:
5 cycles
6.2.26 Differences in specification between 400Hz, VFD and 50/60 Hz systems
Measurement / Recording
400Hz
VFD
50 Hz / 60Hz
Voltage
(1)
(1)
Current
(1)
(1)
Frequency
335 Hz ÷ 465 Hz
5 Hz ÷ 120 Hz
Power
(1)
(1)
Energy
(1)
(1)
Unbalance
(1)
(1)
Flicker
-
-
THD
Voltage Harmonics
0 ÷ 13
th
0 ÷ 20
th
(3)
0 ÷ 50
th
Current Harmonics
0 ÷ 13
th
0 ÷ 20
th
(3)
0 ÷ 50
th
Voltage Interharmonics
-
0 ÷ 20
th
(3)
1 ÷ 50
th
Current Interharmonics
-
0 ÷ 20
th
1 ÷ 50
th
Events
(1)
(1)
RVC - Rapid Voltage Changes
-
(1)
Signalling
-
-
Network Configurations
(1)
(1)
General recorder
(1)
(1)
Waveform / inrush recorder
(1)
(1)
Transient recorder
(1)
(1)
Waveform Snapshot
(1)
(1)
Cycle aggregation
50 cycles
5 cycles
10/12 cycles
(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

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METREL MI 2893 Specifications

General IconGeneral
BrandMETREL
ModelMI 2893
CategoryMeasuring Instruments
LanguageEnglish

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