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Teseq-CDN_30433-Phase Coupling/Decoupling Network Series

28 February 2012 - Teseq, a developer and provider of instrumentation and systems for EMC emission and immunity testing, has designed the CDN 3043 3-phase coupling/ decoupling network series as a competitively priced, high performance extension to the NSG 3040 multifunction generator series. Six different models are available to provide customers with an optimum price/ performance solution.

All models feature a high level of user comfort and common safety functions, they range from a single function 16 A unit up to a combined version rated at 32 A. Higher current ratings are covered by the CDN 3063 series.

Dedicated EUT (Equipment Under Test) terminals allow direct and easy EUT connection and no specific adapter plugs are required. A safety isolated terminal key is supplied as standard. High value shielded high voltage safety plugs are used to interconnect the high voltage pulse output from a NSG 3040 multifunction generator to the CDN input.

The CDN 3043 series features a dynamic cooling system with all internal elements which increase in temperature under load equipped with thermal sensors. At standby or with lower EUT currents, when there is no need for cooling, the internal cooling fans will turn at a very low speed, generating very little audible noise. Fan speed will increase as required when the CDN is in use. In the event of intentional or unintentional overload, when maximum internal cooling becomes insufficient, the CDN 3043 will remove power to the EUT using the built in EUT power contactor, preventing damage to the instrument and removing the risk of fire. In the event of over temperature shutdown the CDN 3043 control electronics will also send a signal to the NSG 3040, immediately stopping the firing of pulses. This advanced thermal control provides the CDN 3043 series with large overload capabilities allowing up to 1.5 nominal current loading for 10 to 20 minutes, as well as high inrush currents or peak loads.

The phase rotation detector visible at the back of of the CDN units shows clearly if a phase is connected and if the rotation of L1, L2 and L3 are correctly set. This important feature ensures correct coupling which is especially important in synchronous mode.

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