9.7 Logging Phasor Data
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1. Make certain that there is an open connection with the 1133A. If you are not connected, see
“Connecting with the 1133A” on page 42. Only basic permission is required.
2. From the main menu select Connection
>
Acquire Broadcast
>
Waveform, or click the
Waveform button on the Broadcast toolbar to open the Save As window.
3. When the Save As window appears, choose to save the Waveform file to the default filename,
or type in a new file name and click Save.
4. The Waveform window should appear and display the configured phase voltages and current
waveforms.
5. Click any one or group of the buttons on the Input toolbar to select individual currents or
voltages of the three phases (AV, AI, BV, BI, CV, CI) and switch them ON or OFF.
6. To terminate the broadcast, click the “Stop This” button or Select Connection
>
“Stop This”
from the main menu.
7. Review previously recorded waveform data by opening any recorded file by selecting File
>
Open or clicking the Folder button. Data may be “paged through” by using the slider and
right and left arrow buttons.
9.7
Logging Phasor Data
Phasor Data includes all of the individual voltages and currents defined in “Input Configuration”
(see “Configuring Measurement Parameters, DSP Mode”), and are broadcast from the 1133A at
rates set up in the Configure Ports
>
C37.118 PMU-1 (or PMU-2)
>
Estimated Rate Hz (see
Section 7.8.2). Phasor Data may be displayed in either vector format or as a frequency plot. When
viewed as Phasor Vectors, each phase voltage and current may be selected for viewing from the
view buttons in the PSCSV main window. As a Frequency Plot, the display records the deviation
from the system frequency (either 50 or 60 Hz) over time. See Figures 9.11 and 9.12.
To review previously recorded phasor data, and move through the record file, use the slider and
right and left arrows on the record toolbar.
1. Make certain that there is an open connection with the 1133A. If you are not connected, see
“Connecting with the 1133A” on page 42. Only basic permission required.
2. From the main menu select Connection
>
Acquire Broadcast
>
Phasor, Absolute or click the
Phasor button on the Broadcast toolbar to start logging data.
3. When the Save As window appears, click Save to save the Phasor file to the default filename,
or type in a new file name.
4. The Phasor window should appear and display the voltage and current phasor(s). The number
of phasors is determined by the system choice from the DSP selection.
5. Click any one or group of the Input buttons on the Input toolbar to switch ON or OFF
individual currents or voltages of the three phases (AV, AI, BV, BI, CV, CI).
