Power Analysis and Quality

A full diagnosis of your electrical installation or network with precise measurement, calculation and display of harmonics.

Actual Power Recordings

Current recordings

The below current recording shows the start-up of large motor’s, these peaks can influence the hot-spot winding temperature of your transformer. These peaks can be reduced by the introduction of VSD’s.

current-recordings
Phases Date Time Minimum Maximum Current Time
A1 rms RED 11/11/2013 11:45:00.000 AM 73.363 0.000 886.000 A 22:30:00
A2 rms YELLOW 11/11/2013 11:45:00.000 AM 65.079 0.000 756.500 A 22:30:00
A3 rms BLUE 11/11/2013 11:45:00.000 AM 70.564 0.000 786.000 A 22:30:00
A3 rms NEUTRAL 11/11/2013 11:45:00.000 AM 8.923 0.000 27.400 A 22:30:00

Power Factor recordings

Power Factor should be kept to an average of 0.98 this reducing the inductive current, thus liberating more KW with a reduced Notified Maximum Demand.

power-factor-recording
Power Factor Avg Minimum Maximum Time
PF1 11/11/2013 11:45:00.000 AM 0.822 0.610 0.989 22:30:00 Red
PF2 11/11/2013 11:45:00.000 AM 0.759 0.458 0.987 22:30:00 Yellow
PF3 11/11/2013 11:45:00.000 AM 0.786 0.486 0.990 22:30:00 Blue
PFT 11/11/2013 11:45:00.000 AM 0.793 0.520 0.989 22:30:00 Green

Total Harmonic Distortion recordings (THD)

The Total Harmonic Distortion with relation to the total value or divided into two categories: Voltage and Current.
Acceptable voltage levels of THD = ≤ 5 %
Acceptable current levels of THD = ≤ 30 %
Any percentage above these values would require filtering, to minimize losses + harmonics are pollution to the electrical
Network and equipment running on it.

harmonic-distortion
Name Date Time Avg Min Max Units
A1 THDr 11/11/2013 11:45:00.000 AM 6.693 2.700 12.500 % r
A2 THDr 11/11/2013 11:45:00.000 AM 7.422 3.200 13.400 % r
A3 THDr 11/11/2013 11:45:00.000 AM 5.421 1.800 11.800 % r
AN THDr 11/11/2013 11:45:00.000 AM 20.484 2.300 27.400 % r
U12 THDr 11/11/2013 11:45:00.000 AM 1.751 1.100 2.600 % r
U23 THDr 11/11/2013 11:45:00.000 AM 1.588 0.900 2.400 % r
U31 THDr 11/11/2013 11:45:00.000 AM 1.654 0.800 2.500 % r
V1 THDr 11/11/2013 11:45:00.000 AM 1.748 0.900 2.600 % r
V2 THDr 11/11/2013 11:45:00.000 AM 1.662 1.000 2.500 % r
V3 THDr 11/11/2013 11:45:00.000 AM 1.586 0.800 2.400 % r
VNE THDr 11/12/2013 10:15:00.000 AM % r