GW Instek APS-1102A User Manual - Manual (Page 276)

APS-1102A User Manual
APS-1102A 9-10
Reactive power: Calculated as ( ) apparent power 2- ( ) effective power 2
Full scale: 1400 var
Display resolution: 1 var
Measurement accuracy:

(2% of rdg + 1 var)
(at 23

5°C, load with the power factor 0 to lower than 0.5, 45
Hz to 65 Hz, 50 V or higher output voltage, output current is
10% to 100% of the maximum current)
d) Load power factor measurement: Calculated as effective power / apparent power
Measurement range: 0.00 to 1.00
Display resolution: 0.01
e) Load crest factor measurement: Calculated as (maximum value of

maximum current

and

minimum current

) / RMS current
Measurement range: 1.00 to 50.00
Display resolution: 0.01
f) Output harmonic current measurement (AC - INT mode only, fundamental wave is 50 Hz
or 60 Hz only)
Measurement range: To 40th harmonic of fundamental wave
Full scale: 15.00 Arms and 500.0%
Display resolution: 0.01 Arms and 0.1%
Measurement accuracy: at RMS value current up to 10th

(1% of rdg + 0.08 Arms)
at RMS value current from 11th up to 20th

(2% of rdg + 0.08 Arms)
at RMS value current from 21st up to 40th

(5% of rdg + 0.08 Arms)
(All in the case of reference value, at 23

5°C)
Note: This measurement does not conform to the IEC or other
standards.
g) External synchronization frequency measurement (SYNC mode only)
Measurement range: 38.0 Hz to 525.0 Hz
Display resolution: 0.1 Hz
Measurement accuracy:

0.2 Hz (at 23

5°C)