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6.2.3 Editing „Ramp“
A „Ramp“ is defined as a linear change of either voltage, angle, frequency, etc. as a function of time.
Remarks:
If several coupling paths are selected at SURGE or
EFT, the ramp will be performed for each coupling
path.
e.g.
L-GND; N-GND; PE-GND
6.2.3.1 Definition of a ramp
The steps of a „Ramp“ depend on the ramp time and the difference between the nominal and start- values.
6.2.3.1 EFT Ramps
loaded test
EUT power v, i
possible ramps at EFT
When V-peak is selected:
loaded test
EUT power v, i
V-peak ramp
Ramp: Spike amplitude (voltage)
6.2.3.1 Example ramp definition
Ramp time
Ramp time 20 s
Start V,f,° ..
Start 500V
Nominal V,f,°
Nominal V = 1000V
t
t
V,f,°
V
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