Voltage Dips And Swells; Voltage Harmonics - Fluke 1745 User Manual

Voltage Dips and Swells

If the voltage passes the upper limit (V
the event is registered as a voltage swell or dip respectively (thresholds are
adjustable in PQ Log).
The duration, time and extreme value of the dip or swell is also recorded. See
Figure 13.
110% Vn
100% Vn
90% Vn

Voltage Harmonics

Voltage harmonics are defined as voltage components that have a frequency
that is an integer multiple of the fundamental frequency. Logging function A
records each individual voltage harmonic, up to the 50
averaged over the interval length defined in PQ Log.
Depth
Duration
Figure 13. Voltage Dips and Swells
Power Quality Logger
Using the 1745 Power Quality Logger
+ 10 %) or lower limit (V
N
Height
Duration
th
. These values are
- 10 %),
N
Time
egb019.eps
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