6.2
View analog primary values
6.2.1
Overview
The analog primary values are analog quantities measured on the primary side of
the TRM and reflect the actual current or voltage on the primary side of the CTs.
The ratio is adjusted under settings and also depends on the rating of the TRM. 24
primary values and phase angles are displayed in this view.
The analog primary values are values on the input (primary
equipment side) of the merging unit (MU) when IEC 61850-9-2LE
process bus communication is used. These values are scaled
according to a fixed "universal" scaling of 1 mA per LSB and 10
mV per LSB and transmitted to the IED via IEC 61850-9-2LE
protocol.
Main menu/Measurements/Analog primary values
Displays the quantities measured by the transformer module (TRM) or received via
IEC 61850-9-2 LE process bus. For each channel used the amplitude of the current
is shown. If the amplitude is to low for calculation, the angle will be indicated with
"- - -". The status of the module is always shown and channels not in use are
indicated with "- - " . Data from TRMs and LDCMs as well as Merging Units can
be viewed. All currents are given in RMS values.
6.3
View analog secondary values
6.3.1
Overview
Analog secondary values shows secondary CT currents. These are the actual
current values at the TRM inputs.
For analog values received from Merging Units, no analog secondary values are
shown.
Main menu/Measurements/Analog secondary values
Displays up to 24 channels with secondary CT data. RMS values are shown.
Section 6
1MRK505209-UEN E
Read measured values
32
Operator's manual
