AMETEK CTS
H-Field Test
Operating Manual
V 1.20
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2.4.
IEC 61000-4-9 Pulsed magnetic field with compact NX5/NX7
Main m
enu Magnetic Field separated to “Power frequency” and “Pulsed”
Select “Pulsed” to perform tests according IEC 61000-4-9.
2.4.1.
Magnetic field as per IEC 61000-4-9
Pulse magnetic fields are generated by lightning strokes on buildings and other metal structures including aerial
masts, earth conductors and earth networks and by initial fault transients in low, medium and high voltage
electrical systems. In high voltage sub-stations, an impulse magnetic field may also be generated by the
switching of high voltage bus-bars and lines by circuit breakers.
A surge generator as specified in IEC 61000-4-5 is used to generate a short circuit current with the wave shape of
8/20
s. The waveform used is defined in Figure 3 of IEC 61000-4-5.
Caution
Only coils with 1 turn
can be used for pulsed magnetic field application.
2.4.2.
Pulsed Magnetic field operation
The menu offers different test routines for pulsed magnetic field testing.
Main Menu Pulsed Magnetic Field
Quick Start
Easy and fast online-operation with the magnetic Surge phenomenon. In this menu the user can operate all test
manually with online change the most parameters during a test.
Standard
The operator can select between various preprogrammed test routines as required in different standards
The standard library is filtered according the EUT setting (AC, DC etc.)
