50
Active DC Power Measurements
4.2.12
Measurement
Range (2)
0 to
9999W
10.00 to
99.99kW
100.0 to
999.9kW
1000 to
3000kW (1)
Specified
Measurement
Range
1 to 100% of the
measurement range
0 to 100% of the
measurement range
Accuracy (3)
1000A
± (2% R +10cts)
1000 to 2000A
± (2.5% R +10cts)
2000
to 2500A
DC
± (3.5% R +10cts)
2500
to 3000A
DC
± (4.5% R +10cts)
1000A
± (2% R +3cts)
1000 to 2000A
± (2.5% R +3cts)
2000
to 2500A
DC:
± (3.5% R +3cts)
2500
to 3000A
DC:
± (4.5% R +3cts)
Resolution
1W
10W
100W
1000W
Note (1)
- Display of OL or ± OL.
- Above 3000kW in single-phase (1000V x 3000A).
-
Above
±
6000kW in REL mode.
Note (2)
Any applied voltage greater than 1000V causes the emission of an
intermittent alarm beep to report a dangerous overload.
Note (3)
The measurement result may be affected by an instability linked to the
current measurement (approximately 0.1A).
Example:
For a power measurement made at 10A, the instability of the
measurement will be 0.1A/10A or 1%.
Active AC Power Measurements
4.2.13
Measurement
Range (2) (4)
5 to
9999W
10.00 to
99.99kW
100.0 to
999.9kW
1000 to
2000kW (1)
Specified
Measurement
Range
1 to 100% of the
measurement
range
0 to 100%
of the measurement range
Accuracy (3)
1000A
± (2% R +10cts)
1000A
± (2% R +3cts)
Resolution
1W
10W
100W
1000W
Note (1)
- Display of OL above 2000kW in single-phase (1000V x 2000A).
- Bandwidth in AC in voltage = 3 kHz, in current = 1 kHz
Notes (2) and (3)
of the previous § apply.
Note (4)
Any power measured less than 5W is regarded as zero and causes the
display of dashes "----"
If the voltage is less than 0.15V or if the current is less than 0.15A, the
power measured is regarded as zero and causes the display of "----"
Summary of Contents for AEMC 2139.61
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