The DEWEN DTR™ Series provides a reliable foundation for industrial-grade DC power and battery charging applications.
Based on proven thyristor technology, each system delivers stable, precisely regulated output for process control, transport, and infrastructure installations where uptime and accuracy are critical.
Built and supported in Britain, DTR™ systems combine robust construction, digital control, and flexible configurationto ensure dependable performance in any environment.
Proven technology — precise control — long-term reliability.
Performance and Flexibility
DTR™ rectifiers use phase-controlled thyristors for smooth, reliable DC conversion under variable loads and supply conditions.
They are available as complete chargers or power-supply systems, with single- or dual-conversion options and tailored voltage, current, and enclosure designs.
Highlights
- Output voltage range: 24 – 220 V DC (customisable)
- Output current: 10 A to > 1000 A
- Input supply: 230 / 400 / 690 V AC
- Efficiency up to 92 %
- Regulation accuracy: ±1 % voltage / ±2 % current
- Over-voltage, over-current, thermal and short-circuit protection
- Indoor (IP21–IP32) and outdoor (IP54–IP65) enclosures
- Natural or forced-air cooling
Control and Monitoring
Although based on traditional rectifier principles, DTR™ systems integrate modern digital supervision for configuration, alarms, and remote diagnostics.
Features
- Microprocessor controller with LCD / HMI display
- Event logging and parameter recording
- RS-485 / Modbus communication ( Ethernet / SNMP optional )
- Automatic battery test and equalise functions
- Programmable set points and alarm thresholds
Classic reliability with modern intelligence.
System Options
| Type | Description | Typical Use |
|---|---|---|
| Charger Systems | Float and boost chargers for lead-acid or Ni-Cd batteries | Substations, control rooms |
| Rectifier Power Supplies | Continuous DC for critical loads | Process plants, automation |
| Combined DC Systems | Integrated rectifier + battery + distribution | Utilities, transport infrastructure |
Custom layouts, distribution, and redundancy options are available on request.
⚙️ Standards & Compliance
DTR™ systems are designed and tested in accordance with the main international standards for DC power and battery charger equipment.
Configurations can also be adapted to meet sector-specific requirements such as railway (EN 50155 / EN 45545), water industry (WIMES 3.07), or marine (IACS E10) on request.
Typical References
- IEC / EN 62040-1 – Safety of UPS and DC systems
- IEC 60146-1-1 – Semiconductor converters: general requirements
- IEC 62040-3 – Performance characteristics
- EN 55032 / EN 55035 – EMC emission and immunity
- IEC 61000-4 series – Electromagnetic immunity tests
- EN 60529 – IP protection ratings
- ISO 9001 / 14001 / 45001 – Quality, environment and safety management
All DEWEN DTR™ systems are manufactured under a certified quality management framework and can be validated for additional standards on request.
Long-Term Reliability
Each DTR™ system undergoes full functional and burn-in testing to verify electrical and thermal stability.
Heavy-duty transformer design, industrial-grade components, and conservative ratings ensure a service life that extends well beyond typical operating expectations.
DEWEN supports its systems through complete lifecycle services — from design and FAT to commissioning, maintenance, and modernisation.
Why Choose DTR™
- Proven thyristor technology for demanding applications
- Customisable voltage, current and enclosure options
- British-engineered quality and traceability
- Integrated digital supervision and alarms
- Global technical support and long-life operation
DTR™ — the trusted foundation for reliable DC power supply and charging.
Request a System Quote
Need a dependable DC charger or rectifier system?
Our engineering team can configure a DTR™ solution tailored to your requirements.