Haefely Technology AXOS5, Руководство пользователя

Страница: 28 / 49

22 AXOS
5
Compact immunity test System
8 Electrical Fast Transient Burst
8.1 General information
The Burst generator generates Electrical Fast Transient Bursts (EFT) as described in IEC 61000-4-4. The source
impedance of the generator is 50
Ω . The burst is a common mode transient, coupled simultaneously to all selected
paths with respect to ground. It can be selected between using the coaxial output or the built in mains coupling
network.
8.2 BURST TEST
Test requirements must be achieved by the user according to the IEC 61000-4-4 norm. The safety standards as written
in capture Figure 1-1 must be unconditionally fulfilled.
After selecting in the start menu the function “Burst”, the user has the choice between standard and pre-compliance
mode. It gets selected in the top icon bar. The Figure 8-1 shows the standard menu. When pressing “peak voltage”,
“repetition frequency”, “burst duration” a purple bow opens up and describes visually the waveform impulse.
Furthermore, the user can select between “properties”, “trigger manual”, “Burst mode” and “direct out”. Detailed
description is to find in the following under captures. However, when no further adjustment necessary the “Start” button
can be pushed and the window (Figure 8-4) gets open. When pressing the “line” button, the plug in the right corner
flashes red. As a result L, N, PE front view are connected with L, N, PE rear view and full power supply for the EUT is
provided.
Figure 8-1: EFT/BURST Standard mode
By pressing at each particular value, a new parameter (Figure 8-1) can be entered. Then confirming with “OK” and the
parameter will be written in the standard test mode. In Addition it can be immediately selected between kV and V.
Figure 8-2: EFT/BURST peak voltage configuration