Standards For Testing With Coupling Networks Of Cdn 117A Series; Description - Ametek CDN 117A Series Operating Manual

AMETEK CTS
3.

Standards for testing with coupling networks of CDN 117A series

The coupling network CDN 117A seriesare suitable for testing the following standards:
IEC 61000-4-5
IEC 61000-4-12
The figures below show the setup as per the applied standards.
IEC 61000-4-5 Ed.3 Figure 9
Coupling and decoupling network for unshielded
unsymmetrical interconnection lines for coupling
line to line and line to ground via capacitor and gas
3.1.

Description

The CDN 117A is a coupling/decoupling network for coupling Surge and Ringwave impulses to unsymmetrical
signal- and data-lines. The surge impulses as per IEC 61000-4-5 can be coupled as per standard via a coupling
impedance of 5.0 µF and 40 . Alternatively, a coupling via a gas discharge tube (GDT 90 V) is possible. The
advantage is, that the GDT is built in the bridge. So, it is possible to adapt the breakdown voltage of the GDT to
the EUT line voltage.
For Ringwave application to signal and datalines, the CDN 117A offers a bridge for coupling the impulse via a
capacitor > 3 µF.
Operation Manual
Surge 1.2/50s with capacitor and gas arrestor
Ring wave
arrestor
IEC 61000-4-12 Ed.3 Figure 8
Coupling and decoupling network for unshielded
unsymmetrical interconnection lines for coupling
line to line and line to ground via capacitors
V 1.00
CDN 117A series
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