Fluke 5522A Operators, Operator'S Manual

Page: 391 / 426

PQ Option
Delta (() Amplitude, Single (Sags & Swells) Function (Current)
11
11-21
The
Δ
AMPL Menu, shown below, appears in the Control Display, assuming a current
(amps) value has been entered.
nn351f.eps
How to Set Triggers
Refer to "Setting Triggers" earlier in this chapter.
How to Set the Ramp-up Period
Press the RAMP-UP blue softkey. The Control Display changes to the screen, shown
below, instructing the user to enter the period over which the output ramps to the selected
value. The ramp period applies for both Sags and Swells.
nn365f.eps
How to Set the Sag/Swell Width
The WIDTH blue softkey allows the user to specify the duration of the SAG or Swell
event in seconds.
How to Set the Sag/Swell Amplitude
The
Δ
I/I softkey allows the user to specify the amplitude of the deviation as a percentage
of the nominal output value. The value is positive for swell events and negative for sags.
Delta (
Δ
)Amplitude Mode (Volts and Amps)
The Delta (
Δ
) Amplitude Mode may also be used for voltage and current dual outputs.
The following example demonstrates how to do this.
Example
Assume a specified Sag event with the following characteristics:
•
10 Volts, 1 Amp, at 60 Hz
•
A Post Trigger Delay set to 3 seconds
•
The event width is set to 5 seconds with a voltage delta (

) amplitude of -25 % and
a current delta (

) amplitude of -50 %.
•
The ramp up period is set to 1.0 second
To create this complex waveform, follow these steps:
1. Press the PQ:

AMPL blue softkey
2. Enter 10 Volts, 1 A, 60 Hz
3. Press the MORE OPTIONS blue softkey
4. Press SET

.
The following menu appears: