Teseq offers automated coupling/decoupling network

Teseq has released an automated three-phase coupling/decoupling network (CDN) for EFT and surge testing.

The CDN 3063 provides safe, reliable operation in a range of test setups, including higher-current-level and three-phase equipment-under-test (EUT) testing.

To prevent damage to internal components, the CDN 3063 comes standard with over-temperature protection, which allows short-term operation at current exceeding the nominal rating.

A phase rotation indicator in the three-phase models shows a correctly sequenced power connection for safe EUT operation.

The new system meets IEC requirements for EUT currents over 16A and ANSI specifications for special coupling modes and pulse amplitude control, making it fully compliant with both industry standards.

Available in a burst-only configuration (CDN 3063-B32), with surge function only (CDN 3063-S32) or in a combined model that provides both (CDN 3063-C32), the modular CDN 3063 can be upgraded to protect a user's initial investment and adapts to changing test environments.

The CDN 3063 couples burst and surge pulses in one-, two- or three-phase power mains up to 480V with a current range up to 32A that incorporates the new IEC standard's provision for testing EUTs with high power consumption.

The standard defines three classes of filter inductance for current ranges: up to 25A, 25-60A and 60-100A.

Reduced decoupling inductances in series with the EUT power connection are used in order to minimise series-voltage losses with higher-current EUTs.

The CDN can couple EFT pulses specified in IEC 61000-4-4 Ed2, the combination wave pulse defined in IEC 61000-4-5 and the ring wave pulse from IEC 61000-4-12, as well as the special amplitude control pulse from ANSI C62.45.

The CDN 3063 utilises the latest electronic component technology to measure and track the mains voltage and simultaneously control the pulse phase angle and amplitude.

When combined with Teseq's NSG 3060 burst generator, the CDN 3063 fulfils the coupling requirements designated by ANSI C62.41, which requires a constant peak voltage amplitude for any EUT mains voltage and phase angle.

The CDN 3063 can also be used with Teseq's NSG 3040 burst generators to increase the generator's effectiveness and enable its use in higher-current-level or three-phase EUT applications.

The AC/DC EUT current range is 3 x 32A continuous, 3 x 40A for approximately 35 minutes and 3 x 50A for about 10 minutes.

The CDN 3063 weighs 43kg (94.8lb) and measures 449mm (17.7in) in width, 310.5mm (12.25in) in height and 565mm (22.2in) in depth.

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