Teseq unveils three-phase CDN for EFT/burst testing
Test & Measurement World Staff - August 2, 2012
The CDN 3083-B200—a 200-A, three-phase burst-pulse CDN (coupling/decoupling network) for EFT (electrical fast transient) and burst testing—handles high inrush currents and pulse-shaped peak currents. Although designed for continuous duty at up to 200 A per phase, the unit can be subjected to considerably higher currents for short durations.
Used for testing high-current and high-power equipment, such as electric vehicles and smart grids, the CDN 3083-B200 injects EFT pulses up to 8 kV (5/50 ns, 50 Ω) simultaneously into all supply lines of the EUT (equipment under test). It works with an EUT supply of up to 690 VAC, either line-to-line or line-to-ground, or up to 1000 VDC, line-to-line or line-to-ground.
The IEC 61000-4-4-compliant unit is compatible with all brands of burst generators. Compact and lightweight, it is particularly useful for off-site compliance testing, where the distance between the CDN and EUT is short and the use of combined EFT and surge CDNs generally built in 19-in. racks are impractical. The CDN 3083-B200 employs a built-in thermometer for monitoring temperature to prevent damage to internal components. As the temperature is monitored, the CDN can be heavily overloaded until the temperature reaches 70°C.