Keysight has added a 2kV ±30A 20kW model to its RP7900 series of instruments for battery and electronics testing in hybrid and electric vehicles.

Called RP7973A, it is desigend to run from 400V or 480V three-phase and is capable of two quadrant operation – if can feed power back into the mains.

“The regenerative design enables the energy normally consumed to be returned to the grid cleanly, saving costs associated with energy consumption and cooling,” according to the company.

Quadrant change in another member of the RP7900 family

Two-quadrant bi-directional capability mean that the PSU transitions from sourcing to sinking and back are smooth, without behaviour change or need for settings change.

Efficiency is >80% and total harmonic distortion of returned power is typically 2% minimum.

On top of this, auto-ranging is included to offer multiple voltage and current combinations in one power supply.

Battery emulation is available, as are programmable current and voltage transients. If more power it required, units can be paralleled.

Protections include: over-voltage, over-current and over-temperature.

Simultaneous voltage and current measurement is included and commands are processed in 1ms or less, according to the company.

Packaging is 3U high, with a separate kit (slide rails and flange mounts (no ears)) available for mounting in a 19-inch EIA rack cabinet.

“The next generation of hybrid-electric and electric vehicle power electronics developed and manufactured by our customers require higher voltage, increased bandwidth and exceptional control capability in design qualification and manufacturing test,” said Keysight v-p Christopher Cain.