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Power Supplies

GXC804B-5K Series Regenerative AC/DC Power Source

Four-Quadrant AC/DC Source and Regenerative Load

GXC804B provides AC/DC source and regenerative-load operation for grid simulation, RLC/RCD load tests and bipolar DC work. The 4U family spans 5 to 22.5 kW, with single- or three-phase configurations selected by model.

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GXC804B-5K Series Regenerative AC/DC Power Source
Rated power
5 to 22.5 kW
AC voltage
0 to 450 V L-N at 0.01 to 70 Hz
DC voltage
0 to 636 V
THD
< 0.5% at DC to 400 Hz

Overview

GXC804B provides AC/DC source and regenerative-load operation for grid simulation, RLC/RCD load tests and bipolar DC work. The 4U family spans 5 to 22.5 kW, with single- or three-phase configurations selected by model.

Additional product details

The GXC804B-5K 4-quadrant architecture returns energy to the grid during load operation, reducing facility power consumption. The GXC804B-5K provides standard LAN, front-panel USB, Modbus, and SCPI communication, and OVP, OCP, OPP, and OTP protection.

Regeneration, harmonics and rack context

GXC804B-5K four-quadrant operation returns absorbed energy to the grid, so back-feed permission, site protection settings and the supply agreement have to be settled before a regenerative-load or PHIL bench can be commissioned. GXC804B-5K harmonic generation to the 100th order is only meaningful where that order still falls inside the DC to 1 kHz output bandwidth, so the usable harmonic depth falls as the programmed fundamental rises. A 4U chassis puts a four-quadrant AC and DC source into a bench-scale rack, which is what makes this platform practical as a PHIL amplifier standing next to the simulator rather than as a separate installation.

Key Capabilities & Applications

Frequency-dependent AC envelope

AC output is 0–450 V L-N at 0.01–70 Hz and 0–300 V L-N above 70 Hz to 1 kHz. DC output reaches 636 V; <0.5% THD applies from DC to 400 Hz.

Regenerative source/load operation

Four-quadrant operation returns absorbed energy to the grid. AC, DC and AC+DC output modes and CV / CC / CP / CR / bipolar DC controls support different DUTs.

Remote control and optional PHIL

LAN and USB support Modbus and SCPI. The -EXDA analog/digital I/O extension is optional and provides the PHIL interface.

Common applications

  • Grid simulation and harmonic generation
  • Regenerative AC/DC load testing
  • Hardware-in-the-loop (HIL) simulation
  • Power Hardware-in-the-Loop (PHIL) testing
Applications and test requirements

Grid simulation and harmonic generation

Regenerative AC/DC load testing

CR, CC, CP, rectification, RLC, and RCD load simulation.

Hardware-in-the-loop (HIL) simulation

Power Hardware-in-the-Loop (PHIL) testing

Technical Specifications

ParameterSpecification
Rated power5 to 22.5 kW
AC voltage0 to 450 V L-N at 0.01 to 70 Hz; 0 to 300 V L-N at 70 Hz to 1 kHz
DC voltage0 to 636 V
Frequency rangeDC, 0.01 to 1000 Hz
AC current5K single-phase 0 to 30 A; 15K three-phase 0 to 30 A/ph; 20K and 22.5K three-phase 0 to 35 A/ph
THD< 0.5% at DC to 400 Hz
Output modesAC / DC / AC+DC
DC control modesCV / CC / CP / CR / bipolar
View all 18 specifications
ParameterSpecification
Form factor4U Compact
Input frequency47 to 63 Hz
Efficiency≥ 90%
Input power factor> 0.99Rated power
Dimensions440 × 670 × 178 mm4U; W × D × H
Protection functionsOVP / OCP / OPP / OTP
IP ratingIP21
CoolingForced air
Operating environment0 to 40 °C; 20 to 90% RH, non-condensing
Storage temperature-20 to 85 °C
Performance notes

Reading the output envelope before committing

The GXC804B-5K voltage envelope is frequency-dependent, and that is the figure most often misread: 0 to 450 V L-N is available at 0.01 to 70 Hz, while output from 70 Hz to 1 kHz is bounded at 0 to 300 V L-N. Distortion carries its own condition, since THD is specified as < 0.5% from DC to 400 Hz rather than across the whole 1 kHz range, so a test written at the top of the frequency range should not assume the headline distortion figure. Current per phase moves only from 0 to 30 A to 0 to 35 A across the 5 kW to 22.5 kW rated power models, so moving up the range buys voltage and phases rather than current and a low-voltage high-current DUT is not served by a larger model.

Specifications are subject to change without notice.

Models, Configuration & Compatibility

GXC804B-5K

Model comparison (5)
AC output configurations (5 rows)
AC output configurations
ParameterGXC804B-5KGXC804B-15KGXC804B-20KGXC804B-22P5K
Rated power5 kW15 kW20 kW22.5 kW
Single-phase AC current0 to 30 A0 to 90 A0 to 105 A0 to 105 A
Three-phase AC current-0 to 30 A / phase0 to 35 A / phase0 to 35 A / phase
High-voltage AC output-0 to 900 V L-N; 0.01 to 70 Hz0 to 900 V L-N; 0.01 to 70 Hz0 to 900 V L-N; 0.01 to 70 Hz
High-voltage AC current-0 to 30 A0 to 35 A0 to 35 A

Regular AC voltage range is 0 to 450 V L-N at 0.01 to 70 Hz, or 0 to 300 V L-N at 70 Hz to 1 kHz. A dash preserves the absence of a specified value for that configuration.

DC output configurations (5 rows)
DC output configurations
ParameterGXC804B-5K / GXC804B-15KGXC804B-20K / GXC804B-22P5K
Regular DC voltage0 to 636 V0 to 636 V
Single-channel DC current-30 to 30 A-35 to 35 A
Three-channel parallel DC current-90 to 90 A-105 to 105 A
High-voltage DC output5K: -; 15K: 0 to 1272 V0 to 1272 V
High-voltage bipolar DC current5K: -; 15K: -30 to 30 A-35 to 35 A

Regular DC current figures are printed in shared cells for each model pair. AC+DC output power, voltage and current use the DC-mode ranges; confirm the required physical configuration.

AC output accuracy and distortion conditions (8 rows)
AC output accuracy and distortion conditions
ParameterValueCondition
Power accuracy0.2% FSAC mode
Voltage accuracy0.1% FSAC mode
Frequency accuracy0.01% + 0.01 HzAC mode
Phase accuracy< 1 deg50 Hz
Voltage distortion< 0.5% THDDC to 400 Hz; 250 V L-N resistive load
Voltage distortion< 1% THD400 to 1000 Hz; 250 V L-N resistive load
Load regulation0.1% FSOutput
Line regulation0.10%Output
DC and load-simulation accuracy (5 rows)
DC and load-simulation accuracy
ParameterRange / valueResolution / accuracy
DC voltage accuracy0.1% FS0.1 V resolution
DC current accuracy0.1% FS0.01 A resolution
Resistance simulation0.1 to 1000 Ω0.1 Ω; ± 0.1% FS
Inductance simulation0.01 to 500 mH0.01 mH; ± 0.1% FS
Capacitance simulation0.001 to 50 mF1 µF; ± 0.1% FS
Single-phase input derating for three-phase output (3 rows)
Single-phase input derating for three-phase output
ModelThree-phase output power with single-phase input
GXC804B-15K5.0 kW
GXC804B-20K6.6 kW
GXC804B-22P5K7.5 kW

The source explicitly derates three-phase output on single-phase input. Optional 208/230 V line-to-line three-phase input is described only for the 5K and 15K models.

Control interfaces and software

LAN and USB interfaces support Modbus and SCPI. The optional -EXDA analog/digital I/O extension provides the PHIL interface; the small-signal bandwidth and fast external-control response are associated with that option.

LAN · USB · Modbus · SCPI · Optional -EXDA

Order codes and configuration are confirmed in the quotation.

Technical Resources

Download Datasheet

PDF technical specifications

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Selection guidance

Format: Regenerative AC/DC source/load

Coverage: 5 to 22.5 kW rated power; up to 450 V L-N AC at 0.01 to 70 Hz or 636 V DC; DC to 1 kHz

Best for: Grid, RLC/RCD load, bipolar DC, and HIL workflows needing AC/DC source and regenerative load operation.

The GXC804B-5K rated power tops out at 22.5 kW, so facility-scale AC grid simulation belongs on the high-power AC301SHP / AC303SHP series instead.

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