Fluke 1738 User Manual - Page 46

Parameter, Resolution, Top 3, Forward, Reverse, Reverse Power/Forward Power to toggle

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1736/1738 Users Manual In the "V, A, Hz, +", "Power" and "Energy" screens, use  (Show Menu) or the cursor keys to see a list of available parameters. Use  to select a parameter and confirm the selection with . Tables update with each new average calculation interval at a maximum of every 5 seconds. Push  (Refresh) to update charts on request. V, A, Hz, + (Load studies: A, Hz, +) You can determine the average value measured over the logging duration as well as minimum/maximum values with high resolution. Parameter Min Max Resolution V + + Full cycle (typ. 20 ms @ 50 Hz, 16.7 ms @ 60 Hz) A 0 + Half cycle (typ. 10 ms @ 50 Hz, 8.3 ms @ 60 Hz) Hz + + 200 ms AUX + + 200 ms THD-V/THD-A 0 + 200 ms Note + available with the Logger and the PC software 0 available with the PC software The algorithm to calculate Voltage min/max values is in accordance to established power quality standards to detect dips, swells, and interruptions. Watch for values exceeding ±15 % of the nominal voltage. This is an indicator of power quality problems. High maximum values on Currents can be an indicator for tripping circuit breakers. Push  (Graph) to display the measured values in a chart. The table on the right side of the screen shows the highest and lowest value of the graph measured with the average calculation interval. Triangular indicators point to the measurement value. Power Note Not available on load studies without a nominal voltage. Review the power values in tabular format and as a time chart. Depending on the power parameter or the average value measured over the logging duration, additional values are available: Parameter Active Power (W) Apparent Power (VA) Non-active Power (var) Power Factor Active Power fund. (W) Apparent Power fund. (VA) Reactive Power (var) Displacement Power Factor/cosϕ Min/ Max + + Top 3 + + + - Top 3 Forward/ Reverse For all power values, except PF and DPF, the three highest values during the logging session are available. Use  (Reverse Power/Forward Power) to toggle between Top-3 forward and Top-3 reverse values. 36

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1736/1738
Users Manual
36
In the "V, A, Hz, +", "Power" and "Energy" screens, use
(Show Menu) or the cursor keys to see a list of
available parameters. Use

to select a parameter and
confirm the selection with
.
Tables update with each new average calculation interval
at a maximum of every 5 seconds. Push
(Refresh)
to update charts on request.
V, A, Hz, + (Load studies: A, Hz, +)
You can determine the average value measured over the
logging duration as well as minimum/maximum values with
high resolution.
Parameter
Min
Max
Resolution
V
+
+
Full cycle (typ. 20 ms @ 50 Hz,
16.7 ms @ 60 Hz)
A
0
+
Half cycle (typ. 10 ms @ 50 Hz,
8.3 ms @ 60 Hz)
Hz
+
+
200 ms
AUX
+
+
200 ms
THD-V/THD-A
0
+
200 ms
Note
+ available with the Logger and the PC software
0 available with the PC software
The algorithm to calculate Voltage min/max values is in
accordance to established power quality standards to
detect dips, swells, and interruptions.
Watch for values exceeding
±
15 % of the nominal voltage.
This is an indicator of power quality problems.
High maximum values on Currents can be an indicator for
tripping circuit breakers.
Push
(Graph) to display the measured values in a
chart. The table on the right side of the screen shows the
highest and lowest value of the graph measured with the
average calculation interval. Triangular indicators point to
the measurement value.
Power
Note
Not available on load studies without a nominal
voltage.
Review the power values in tabular format and as a time
chart. Depending on the power parameter or the average
value measured over the logging duration, additional
values are available:
Parameter
Min/
Max
Top 3
Top 3
Forward/
Reverse
Active Power (W)
-
-
+/+
Apparent Power (VA)
-
+
-
Non-active Power (var)
-
+
-
Power Factor
+
-
-
Active Power fund. (W)
-
-
+/+
Apparent Power fund. (VA)
-
+
-
Reactive Power (var)
-
-
+/+
Displacement Power Factor/cos
ϕ
+
-
-
For all power values, except PF and DPF, the three
highest values during the logging session are available.
Use
(Reverse Power/Forward Power) to toggle
between Top-3 forward and Top-3 reverse values.