USER INTERFACE 9
3.4 Measurements
3.4.1 Overview
By default, the homepage displays an Overview of network properties and system settings:
Item Description Section
Total harmonic distortion on all line-to-neutral
RMS value of the fundamental component of all line-to-neutral
Frequency Network frequency
V dc bus Voltage of the DC capacitor in the Module
RMS value of all line currents measured at the position of the CT
Irms (N)
Total harmonic distortion on all line currents
RMS value of the fundamental component of all line currents
AIP Irms (N)
P Active power on the network at the location of the CTs
Q Reactive power on the network at the location of the CTs
S Apparent power on the network at the location of the CTs
Power Factor Ratio of true power over apparent power on the network taking into
account the fundamental and harmonic values of the measurements
Displacement power factor based on only the fundamental values of the measurements
T control Temperature of the main control board in the monitored module
T control max Temperature of the hottest main control board in a system of
multiple modules connected in parallel
T IGBT Temperature of the IGBT in the monitored module
T IGBT max Temperature of the hottest IGBT in a system of modules connected in parallel
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Table 4: Overview of electrical network properties and system settings
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