What it is

The EA-PUB 10000 is a programmable bidirectional DC power supply that works as both a source and a regenerative electronic load in a single instrument. In load mode it feeds absorbed energy back into the grid rather than dissipating it as heat, and its autoranging output holds full power across a wide voltage and current window. The series is offered in two rack-mount builds — a 30 kW 4U unit and a 60 kW 6U unit — that share the same control, protection, and parallel-connection architecture.

• Two-quadrant operation: source and sink in one device
• 30 kW per unit (4U) or 60 kW per unit (6U)
• DC voltage ranges from 0–60 V up to 0–2000 V
• DC current ranges from 0–40 A up to 0–1000 A
• Regenerative energy recovery to the AC grid, efficiency up to 96%
• Active power factor correction, typically 0.99
• Autoranging output with CV, CC, CP, and CR regulation and fast crossover
• Parallel operation of up to 64 units for systems to 3840 kW
• UL, C-UL (CSA), IEC, EN, and BS safety listings

What it is used for

The PUB 10000 is applied across a range of power-electronics test and development work:

• Battery test for electromobility — cell, module, and pack tests, State-of-Health (SOH) determination for second-life classification, and End-of-Line (EOL) testing
• Battery simulation — emulating cells, modules, or packs, with the source acting as a protected supply for the component under test
• Fuel cell test — resistance, performance, and active-life testing of fuel cells, stacks, and systems in all electrical modes
• On-board charger (OBC) test — with adjustable voltage regulation speed to avoid control-loop competition with the DUT
• Solar array simulation — PV inverter testing with simulation models to EN 50530 or Sandia, including irradiation, panel technology, and temperature
• Battery recycling — SOH assessment and full discharge of retired EV batteries, with total discharge maintained even at voltages under 2 V

Source, sink, and control

Bidirectional with energy recovery. The PUB 10000 operates in two quadrants, combining a power supply and an electronic load. In sink mode it is regenerative, returning absorbed energy to the local grid at up to 96% efficiency. Because that energy is not converted to heat, the unit runs cooler and needs less cooling infrastructure than a dissipative load, reducing both energy and air-conditioning cost.

Autoranging output. The flexible output stage automatically offers a wide range of both voltage and current to maintain full power across a wide operating range, so one unit addresses many voltage-and-current combinations instead of being fixed to a single rectangular envelope. Active PFC and the wide three-phase input let the units run on the majority of global grids.

Digital regulation and programming. Regulation runs at 16-bit resolution on the ADCs and DACs, with CV, CC, CP, and CR modes and fast crossover, and a selectable voltage control speed (Normal, Fast, or Slow) to match the dynamics of the device under test. The units are driven over SCPI and ModBus with LabVIEW and IVI drivers, and controlled through EA-Power Control and EA-Battery Simulator software.

Why engineers pick it

One unit covers a wide test envelope. Autoranging means a single PUB 10000 delivers full rated power across a broad voltage and current range rather than at one fixed operating point, which widens the field of working compared with a traditional power supply.

Regeneration lowers the running cost of high-power test. Up to 96% of the energy absorbed in load mode goes back to the grid instead of into heat, cutting energy consumption and the cooling load at the same time.

It scales without changing the measurement chain. The same series parallels from a single benchtop unit up to a 3840 kW, 64-unit system on the Master-Slave and Share-Bus, so a lab can grow a platform without changing control philosophy or drivers.

High-density rack power. A 19 in 42U cabinet reaches 300 kW in only 0.6 m² (6.5 sq ft) of floor space, and Master-Slave allows up to 13 cabinets to behave as one unit.

Configuring and scaling

The series resolves along three axes: form factor, model, and options.

• Form factor sets power per unit — 4U at 30 kW, 6U at 60 kW.
• Model sets the voltage-and-current envelope. Ten 4U models span 0–60 V / 0–1000 A through 0–2000 V / 0–40 A; seven 6U models span 0–360 V / 0–480 A through 0–2000 V / 0–80 A. Each model carries its own article number.
• Options cover water cooling in stainless steel, the function generator, and the optional industrial interface fitted to the plug-and-play slot (CAN, CANopen, RS232, Profibus, EtherCAT, Profinet, Modbus, or Ethernet, one or two ports).

For higher power, units parallel on the Master-Slave and Share-Bus: up to 64 units combine into one system providing up to 3840 kW and 64000 A, behaving as a single unit with total power and current shown on the master and load shared equally across the group. Different power classes can be mixed from 5 kW upward provided the voltage class stays constant — for example, a 150 kW system from two 60 kW 6U units and one 30 kW 4U unit.

Configure your unit on this page and buy it directly. If you need something the configurator does not cover — a paralleled multi-unit or multi-cabinet system, the water-cooling build, a specific industrial interface, or a full turnkey rack — contact us and we will scope it with you.