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  • GT-DC Series Bidirectional DC Power Supply

GT-DC Series Bidirectional DC Power Supply

🔺Power Range: 10–300 kVA
🔺System Type: Bidirectional DC power supply with integrated DC source and regenerative load
🔺Operation Mode: Programmable DC source mode and regenerative load mode
🔺Control System: Full digital DSP control
🔺 Display Interface: LCD + LED + large color touch screen
🔺 Protection Level: IP20

Input Wiring: Three-phase 3P+N+PE

Input Power Factor: >0.99 (100% load)

Current Distortion: THDi <3% (100% linear load)

System Efficiency: 96%

Maximum DC Power: 100% rated power

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  • GT-DC Series Bidirectional DC Power Supply

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The GT-DC Series Bidirectional DC Power Supply is an integrated DC source and regenerative load system designed for automated testing, aging tests, and reliability verification of DC power equipment. By combining a programmable DC power source and a regenerative electronic load in a single platform, the system enables efficient bidirectional energy flow and high-precision power testing.

Compared with traditional testing setups that require separate DC power supplies and load banks, the GT-DC Series integrates both functions into one system, significantly reducing equipment footprint, simplifying system configuration, and improving overall testing efficiency. During operation, the regenerative load feeds energy back to the grid, minimizing energy waste and heat generation.

With full digital DSP control across all power conversion stages, the GT-DC Series provides high stability, fast dynamic response, and accurate voltage regulation. Its modular architecture supports flexible system expansion and hot-swap maintenance without interrupting operation, making it suitable for large-scale testing platforms and automated production lines.

System Architecture

A bidirectional DC power supply system typically integrates both DC source and load testing capabilities into a unified platform. The typical system structure includes:

DC Power Source + Regenerative DC Load + Power Conversion Modules + Control System + Monitoring System= Integrated DC Source & Load Testing Platform

This integrated design enables efficient power circulation, reduces energy consumption during testing, and improves system reliability for high-power testing environments.

Typical Applications

The GT-AC Series is widely used in testing and aging applications for various AC-powered equipment, The GT-DC Series is suitable for various DC power testing scenarios, including:

  • UPS DC bus testing
  • Inverter and converter testing
  • Energy storage system testing
  • Power supply aging tests
  • Power electronics component verification
  • Automated production line testing

It is particularly ideal for laboratories, certification testing facilities, and industrial testing systems requiring high-power DC source and load capabilities.

Our Factory and Cases

We welcome you to visit our factory to experience the quality and performance of our products firsthand.

Model Bidirectional DC Power Supply
Power Range 10kVA-300kVA
Main
input
Input Wiring 3P5W(3P+N+PE)
Input Voltage 380/400/415VAC(L-L)
Input Frequency 50/60Hz
Power Factor >0.99 (Main Mode, 100% Load)
Current Distortion(THDi) THDi<3%(Main Mode, 100% Linear load)
Voltage Range 304~478VAC(L-L)full load; 304~228VAC(L-L) power derate from 100% to 50%
Frequency Range 40-70Hz
DC
Side
Input/
Output
DC Voltage Adjustable Range 200~900VDC
Maximum DC Side Power 100% Rated Power
DC Voltage Accuracy ±1.0%
Dynamic Response ±5.0%
System System Efficiency 96%
Display LCD + LED + Extra-large color touch screen
Safety IEC62040-1,IEC60950-1
EMC IEC62040-2; IEC61000-4-2(ESD); IEC61000-4-3(RS); IEC61000-4-4 (EFT); IEC61000-4-5 (Surge)
Protection Grade IP20
Standard USB, RS232, RS485, Dry Contact Card
Optional SNMP Card, Extended Dry Contact Card, Parallel Kit, Surge Protection Kit, APP/WiFi/Bluetooth
Operating Environment 0~40°C (operating temperature); -25°C ~70°C (storage temperature); 0~95% (non-condensing)

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