GE Pqm 2 Manual

CHAPTER 4: SOFTWARE
PQMII POWER QUALITY METER  – INSTRUCTION MANUAL4–11
4.4 Using the EnerVista PQMII Setup Software
4.4.1 Entering Setpoints
The System Setup page will be used as an example to illustrate the entering of setpoints.
Select the Setpoint > System Setup menu item. The following window 
will appear:
When a non-numeric setpoint such as 
CT WIRING is selected, EnerVista PQMII Setup 
Software displays a drop-down menu:
When a numeric setpoint such as 
PHASE CT PRIMARY is selected, EnerVista...

4–12PQMII POWER QUALITY METER  – INSTRUCTION MANUAL
CHAPTER 4: SOFTWARE
4.4.2 Viewing Actual Values
If a PQMII is connected to a computer via the serial port , any measured value, status and 
alarm information can be displayed. Use the Actual pull-down menu to select various 
measured value screens. Monitored values will be displayed and continuously updated.
4.4.3 Setpoint Files
To print and save all the setpoints to a f ile follow the steps outlined in 4.3.2: Saving 
Setpoints to a File.
To load an...

CHAPTER 4: SOFTWARE
PQMII POWER QUALITY METER  – INSTRUCTION MANUAL4–13
4.5 Power Analysis
4.5.1 Waveform Capture
Two cycles (64 samples/cycle) of voltage and current waveforms can be captured and 
displayed on a PC using the EnerVista PQMII Setup Software or third party software. 
Distorted peaks or notches from SCR switching provides clues for taking corrective action. 
Waveform capture is also a useful tool when investigating possible wiring problems due to 
its ability to display the phase...

4–14PQMII POWER QUALITY METER  – INSTRUCTION MANUAL
CHAPTER 4: SOFTWARE
parameter. EnerVista PQMII Setup Software then takes this data and performs a FFT (Fast 
Fourier Transform) to extract the harmonic information. The harmonic analysis feature is 
implemented into EnerVista PQMII Setup Software as shown below.
Select the Actual > Power Analysis > Harmonic Analysis > 
Harmonic Spectrum menu item. 
The EnerVista PQMII Setup Software can display the Harmonic 
Analysis Spectrum window including the...

CHAPTER 4: SOFTWARE
PQMII POWER QUALITY METER  – INSTRUCTION MANUAL4–15
running total of all valid Trace Memory Triggers from the last time power was applied to 
the PQMII. The Total Trace Triggers counter will rollover to 0 at 65536. The trace memory 
feature is implemented into the EnerVista PQMII Setup Software as shown below.
Select the Setpoint > PQMII Setup > Trace Memory Setup menu 
item to setup the trace memory feature.
The Trace Memory Usage parameter is set as follows:
• 1 x 36 cycles: upon...

4–16PQMII POWER QUALITY METER  – INSTRUCTION MANUAL
CHAPTER 4: SOFTWARE
Select the Actual > Power Analysis > Trace Memory menu item to 
view the trace memory data. 
This launches the Trace Memory Waveform window.
4.5.4 Data Logger
The data logger feature allows the PQMII to continuously log various specif ied parameters 
at the specif ied rate. The data logger uses the 64 samples/cycle data. This feature is 
implemented into EnerVista PQMII Setup Software as shown below.
Select the Setpoint > System...

CHAPTER 4: SOFTWARE
PQMII POWER QUALITY METER  – INSTRUCTION MANUAL4–17
FIGURE 4–4: Data Logger Setup Window
1. The Log 1(2) Mode parameters are set as follows:
• “Run to Fill”: when the data logger is full (100%) it will stop logging
• “Circulate”: when the data logger is full, it will start from the beginning 
and overwrite the previous data.
2. The Log 1(2) Interval parameters determine how frequently the PQMII logs 
each piece of data.
3. The total log size is approximately 192KB. The allotment of...

4–18PQMII POWER QUALITY METER  – INSTRUCTION MANUAL
CHAPTER 4: SOFTWARE
FIGURE 4–5: Data Logger Window
5. The Data Log 1(2) dialog box displays the record numbers, data log start time, 
the current time, and parameter values for the current cursor line position.
4.5.5 Voltage Disturbance Recorder
The Voltage Disturbance Recorder allows the PQMII to monitor and record sag and swell 
disturbances. This function can record up to 500 sag/swell events for all voltages 
simultaneously. The events roll-over and...

CHAPTER 4: SOFTWARE
PQMII POWER QUALITY METER  – INSTRUCTION MANUAL4–19
Select the Actual > Power Analysis > Voltage Disturbance Recorder 
menu item to view the voltage disturbance recorder events.
Within the voltage disturbance recorder window, each event is listed and can be selected. 
When the event is selected the following values are displayed:
•Dist . Number: The event number. The f irst event recorded (after the event recorder 
is cleared) will be given the event number of “1”. Each subsequent...

4–20PQMII POWER QUALITY METER  – INSTRUCTION MANUAL
CHAPTER 4: SOFTWARE
FIGURE 4–6: Voltage Disturbance Recorder