
Chapter 5 Configuring the EM720
General Meter Setup
76
EM720 Power Quality and Revenue Meter
Billing Point
Metering Point
Supply side,
far end
Supply side,
transformer end
Load side,
transformer end
Load side,
far end
Supply side,
far end
-Supply line losses
-Supply line losses
-Transformer losses
-Supply line losses
-Transformer losses
-Load line losses
Supply side,
transformer end
+Supply line losses
-Transformer losses -Transformer losses
-Load line losses
Load side,
transformer end
+Supply line losses
+Transformer losses
+Transformer losses
-Load line losses
Load side,
far end
+Supply line losses
+Transformer losses
+Load line losses
+Transformer losses
+Load line losses
+Load line losses
4. Select the number of metering elements depending on
the wiring mode set in the meter. It is not a critical
parameter and the actual losses will not be affected by
this setting.
5. Specify the power transformer data. It is normally
taken from the transformer nameplate and
transformer datasheet. All transformer data is given
for a 3-phase system.
6. If the supply-side or/and load-side power line losses
are to be included in compensation, specify the length
of power lines and their resistance and reactance per
mile or km. To change the length units, select Options
from the Tools menu, click on the Preferences tab, and
then check the preferred distance units.
7. After all data is specified, click on the Calculate %Loss
Constants button to update the loss constants.
8. Select Enable in the Loss Compensation Enabled box to
enable loss compensation in the meter.
9. Send your new setup to the meter.
NOTE
You can also enable and disable loss compensation via the
front display (see
Device Options and Mode Control
Local Settings
This setup allows you to specify your local time zone, daylight
saving time options and time synchronization source.
Using the Front Display
Select Local from the main menu. See
in Chapter 3 for information on navigating in
menus.
See the table below for available options.
Using PAS
Select General Setup from the Meter Setup menu, and then
click on the Local Settings tab.