Active Dc Power Measurements; Active Ac Power Measurements - AEMC 405 User Manual

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4.2.11 Active DC Power Measurements

Measurement 0 to
Range (2) 9.999W
Specified
1 to 100% of the
Measurement
measurement range
Range
1000A
± (2% R +10cts)
Accuracy (3)
1000 to 1500A
± (2.5% R +10cts)
Resolution 1W
Note (1) - Display of O.L or ± O.L
- Above 1500kW in single-phase (1000V x 1500A).
- Above ±3000kW 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%.

4.2.12 Active AC Power Measurements

Measurement 5 to
Range (2) (4) 9999W
Specified 1 to 100% of the
Measurement measurement
Range range
1000A
Accuracy (3)
± (2% R +10cts)
Resolution 1W
Note (1) - Display of OL above 1000kW in single-phase (1000V x 1000A).
- Bandwidth in AC in voltage = 3 kHz, in current = 2 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 "----"
Note 5 The active powers are positive for power consumed and negative for
power generated.
Note 6 The signs of the active and reactive powers and power factor are
defined by the four-quadrant rule below:
GlobalTestSupply
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10.00 to 100.0 to
99.99kW 999.9kW 1500kW (1)
0 to 100% of the
measurement range
1000A
± (2% R +3cts)
1000 to 1500A
± (2.5% R +3cts)
10W 100W
10.00 to 100.0 to
1000kW (1)
99.99kW 999.9kW
0 to 100%
of the measurement range
1000A
± (2% R +3cts)
10W 100W
40
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1000 to
1000W
1000W
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