CET PMC-53 Series - Power Quality; Harmonics; Unbalance

Ceiec Electric Technology
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front panel or via communications.
4.5 Power Quality
4.5.1 Harmonics
The PMC-53 provides harmonic analysis for THD. All harmonic parameters are available through
communications as well as the front panel LCD display.
The PMC-53 provides the following Harmonic measurements:
Harmonics
Va THD
Vb THD
Vc THD
Ia THD
Ib THD
Ic THD
Ia K-Factor
Ib K-Factor
Ic K-Factor
Table 4-7 Harmonic Measurements
4.5.2 Unbalance
The PMC-53 can measure Voltage and Current Unbalances. The calculation method of Voltage and
Current Unbalances is listed below:
100%
Vavg
|]VavgVc||,VavgVb||,VavgVa[|
UnblanceVoltage
MAX



100%
Iavg
|]IavgIc||,VavgIb||,IavgIa[|
UnblanceCurrent
MAX


