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Intepro’s compact PSB Series of Bidirectional and Regenerative Power Supplies simplify testing e-mobility, renewables and more

Compact auto-ranging DC supply up to 30KW with energy-recovering DC load

Intepro Systems announces the availability of its PSB series of programmable digital power supplies/loads. The PSB series are microprocessor controlled bi-directional supplies that feature two devices in one: an auto-ranging DC power supply and an electronic DC load with energy recovery. The bi-directional package replaces individual programmable sources and loads, and the regenerative load returns up to 95% of test energy to the grid.

The PSB series enables two-quadrant operation in a single, efficient, and easy-to-use instrument eliminating the need for two topologies. Combining the features of a programmable source and regenerative programmable load into one chassis frees up rack space, reduces weight and cost, and reduces generated heat while recovering load energy back to the grid.

Bidirectional DC-DC converters (BDCs) are becoming increasingly popular due to the growing need for systems to have the capability of bidirectional energy transfer between two DC buses. In addition to traditional applications in DC motor drives, new applications for BDCs include energy storage in renewable energy systems, fuel cell energy systems, hybrid electric vehicles (HEV) and uninterruptible power supplies (UPS).

Intepro PSB power supplies are available with outputs of 15KW in a 3U x 19” rack chassis (PSB 9000) and 30KW in 4U (PSB 1000), and they may be connected in parallel for operation up to 2MW. The auto-ranging bidirectional output stage maintains full power over a wide output range while bidirectional operation provides seamless transitions between source and sink modes.

The unique capability of the Intepro PSB series is the ability to be programmed to seamlessly switch between source and sink with no “off” time. When operating as the load the device synchronizes with its 3-phase power input to recover upwards of 95% of the energy. When operating as a source, the unit has an efficiency of up to 93%, generating less heat in both modes. This provides further energy savings by reducing the cooling costs in the test environment

The PSB series features a wide range 3-phase input voltage from 342-528V, 45-66 Hz, with output voltage ratings of 60V – 2,000V and current ratings from 40A-1000A. The devices include a wide range of programmable functions to simulate complex testing such as electric vehicle load profiles, battery charging, PV simulation per EN 50530 and MPP tracking and others.

Other features include automatic crossover when the unit goes from load to source or vice versa once specified conditions are met, remote sensing with automatic detection, temperature controlled cooling fan speeds, control panel with gorilla-glass touchscreen for actual values, set values, status and alarms, USB and Ethernet port integrated or alternatively installed IEEE/GPIB Port, SCPI command language and LabVIEW VIs supported, Windows control software provided.

Intepro Systems offers a wide selection of Auto-Ranging programmable DC Power Supplies. All Power Supplies are MOS-FET based, providing a high-performance power stage that offers high speed slew rates and low output ripple. Intepro’s electronic DC Power Supplies are designed for ultimate flexibility and configuration in providing the ideal power input solution for testing converters, chargers, batteries, adapters, and power electronic components.

For  more information about the INTEPRO PSB Series of Regenerative Power Supplies visit https://www.inteproate.com/psb  or go to the INTEPRO website at https://www.inteproate.com/

About Intepro Systems

Intepro Systems instrumentation and systems test and validate power supply systems and components used in aerospace, military, telecommunications, and other power electronics applications. Leaders in power supply testing; the company has a global reach with direct sales offices in the U.K., Ireland, China and the USA, and distributors covering the rest of the world.

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