Auto-ranging programmable DC power source to 15 kW

September 10, 2015 // By Graham Prophet
Interpro Systems’ PSI 9000 provides up to 15 kW in a 3U rack-mount chassis; an auto-ranging feature maintains full rated power output at lower-voltage settings, and units can be paralleled up to 150 kW.

The power and ATE equipment maker’s programmable DC power sources include a controller that allows the flexibility of separating into individual sources or paralleling for high-power applications. The unit has an auto-ranging output. Unlike DC sources that provide rated power only when maximum voltage is applied to the load, the auto-ranging output stage is capable of delivering three times higher output current at reduced voltages. This feature is useful when testing products that require varied input voltages while maintaining regulated output power. With auto-ranging, a single-system provides a complete test solution compared to buying multiple sources to address low- and high-voltage/current requirements.

The PSI 9000 Series has an interactive touch panel menu navigation system that simplifies set up and storing test profiles. Efficiency is up to 95.5% and the unit includes an integrated true function generator. Complex test sequences can be loaded from, and saved to, a standard USB flash drive. The unit also includes simulations for PV (photovoltaic) arrays and fuel cells.

Features include: a galvanically isolated analogue interface for voltage, current and power programming and monitoring, digital plug-and-play modules supporting RS232, Ethernet, CANopen, Modbus TCP, Profibus, Devicenet and IEEE/GPIB, and SCPI command language support. The PSI 9000 Series includes models with output power ratings of 0-3.3 kW, 0-5 kW, 0-10 kW and 0-15 kW in a single 3U chassis, and eight voltage models ranging to 1,500 VDC.

Intepro Systems; www.inteproATE.com