2250 V bidirectional, regenerative, programmable DC power supply. Highest 2250 V class for long PV strings and high-voltage power-electronics test. Source and sink in one unit, with energy regenerated to the grid at up to 93%.
Bidirectional93% regen≤5 ms0.02% F.S.CC/CV/CP/CRSCPI · Modbus · CANopen
Models in this class
Every model below is a bidirectional source + regenerative load. Request a quote on any configuration — or ask us to size a parallel system.
| Voltage | Current | Power | Form | Model | |
|---|---|---|---|---|---|
| 2250 V | ±60 A | 22 kW | 3U | N35522-2250-60 | Quote → |
| 2250 V | ±60 A | 32 kW | 3U | N35532-2250-60 | Quote → |
| 2250 V | ±65 A | 42 kW | 3U | N35542-2250-65 | Quote → |
| 2250 V | ±130 A | 84 kW | 6U | N35584-2250-130 | Quote → |
| 2250 V | ±195 A | 126 kW | 22U | N355126-2250-195 | Quote → |
| 2250 V | ±260 A | 168 kW | 22U | N355168-2250-260 | Quote → |
| 2250 V | ±325 A | 210 kW | 32U | N355210-2250-325 | Quote → |
| 2250 V | ±390 A | 252 kW | 32U | N355252-2250-390 | Quote → |
| 2250 V | ±455 A | 294 kW | 32U | N355294-2250-455 | Quote → |
| 2250 V | ±520 A | 336 kW | 42U | N355336-2250-520 | Quote → |
| 2250 V | ±585 A | 378 kW | 42U | N355378-2250-585 | Quote → |
| 2250 V | ±650 A | 420 kW | 42U | N355420-2250-650 | Quote → |
View & quote the 2250 V product page →
Capabilities
Bidirectional source + regenerative load, plus optional battery simulation (NS81000, 7 model libraries + custom curves) and PV array simulation (NS91000, EN50530 / Sandia static & dynamic MPPT).
Technical specifications
| Output voltage range | 0 – rated (360 / 500 / 750 / 1000 / 1500 / 2250 V) |
|---|---|
| Output current | Bidirectional ± rated (to 240 A / unit, to 2400 A in cabinet) |
| Output power | Bidirectional ± rated (14 kW–420 kW; MW via parallel) |
| Operating quadrants | Dual-quadrant (source + regenerative sink), seamless crossover |
| Regenerative efficiency | Up to 93% (energy returned to grid) |
| CV setting accuracy | ≤ 0.02% + 0.02% F.S. |
| CC / CP setting accuracy | ≤ 0.1% + 0.1% F.S. |
| Voltage readback accuracy | ≤ 0.02% + 0.02% F.S. |
| Dynamic response | Voltage rise/fall ≤ 5 ms (representative 3U); transient recovery < 4.5 ms (10→60%) |
| Load modes | CC / CV / CP / CR, with CC&CV priority |
| Simulation | Battery (NS81000, 7 libraries + custom) · PV I-V/P-V (NS91000, EN50530/Sandia) |
| Protections | OVP / OCP / OPP / UVP / UCP |
| Power factor | 0.99 |
| AC input | Three-phase 340–480 VAC, 47–63 Hz |
| Interface | LAN / RS232 / RS485 / CAN — SCPI, Modbus-RTU, CANopen |
| Display | 6.8″ LCD |
| Operating environment | 0–50 °C (derate > 35 °C); storage −10–70 °C; < 2000 m; 5–90% RH non-condensing |
| Standards / quality | CE · IEC 61010-1 · ISO 17025-traceable calibration (on request) |