4U power supply rack unit returns test energy to the grid
Two-quadrant operation can be delivered by the Model PSB 10000 30kW programmable digital power supply from Intepro Systems. The auto-ranging DC supply has energy-recovering DC load and the bi-directional package replaces individual programmable source and programmable load, explains the company.
The PSB 10000 Series is a microprocessor controlled bi-directional supply that features two devices in one, namely an electronic DC load with energy recovery and an auto-ranging DC power supply. This allows for two-quadrant operation in an efficient and easy-to-use instrument, says Intepro. It combines the features of a programmable source and regenerative programmable load into one chassis to free up rack space and reduce generated heat, while simultaneously recovering loaded energy back to the grid.
The PSB 10000 can be programmed to seamlessly switch between source and sink with no off time. When operating as the load, the device synchronises with its three-phase power input to recover upwards of 93 per cent of the energy. When operating as a source, the unit has an efficiency of up to 93 per cent, generating less heat in both modes.
The PSB 10000’s three-phase input voltage ranges from 342 to 528V, 45 to 66Hz, with output voltage ratings of 60 to 2,000V and current ratings from 40 to 1,000A. There is also a range of programmable functions to simulate complex testing such as electric vehicle load profiles, battery charging, PV simulation per EN 50530 and MPP tracking.
Multiple PSB 10000 units can be operated in a master-slave configuration providing source/load capabilities up to 1.08MW, advises Intepro.
Intepro Systems’ instrumentation and systems test and validate power supply systems and components that are used in aerospace, military, telecommunications, and other power electronics applications. The company has direct sales offices in the UK, Ireland, China and the USA and distributors covering the rest of the world.
