Application Note

2 Fluke Corporation Energy studies with the Fluke 1735 Power Logger
1. Hook up to the feeders or
service. Using proper personal
protective equipment, connect
the Fluke 1735 to 120 V line
power and secure the area so
no one will tamper with your
setup. For a 3-phase wye
system there will be eight
connections:
•
Three phase voltages
•
Neutral voltage
•
Three phase currents
•
Neutral current
2. Set power system parame-
ters. Set the Network Topology
to wye or delta, to match the
system you are recording.
Verify the nominal voltage
(Mains Voltage) and line
frequency are correct.
3. Set the recording time. Set
the Fluke 1735 to 15-minute
averaging intervals and a
30-day recording duration.
4. Record the data. In the W
(power) position the Fluke
1735 will record a min, max,
and average of these values
every 15 minutes:
•
Power in Watts for each
phase and total
•
Reactive Power in VARs for
each phase and total
•
Apparent Power in VAs for
each phase and total
•
Power Factor for each phase
and average
•
Averages of Energy in kWh
and Reactive Energy in
kVARh
The trend screen will appear
and plot a new minimum,
maximum and average on the
display every fifteen minutes,
moving from left to right as
shown in Figure 3.
After 30 days, disconnect
the Fluke 1735 from the
source, take it to your com-
puter, use the serial cable to
connect it, and download the
data into the Power Log Soft-
ware included with the unit.
Figure 1 & 2. Sample setup screens for recording time and parameters.