GDZW DC Power Supply Cabinet is a high-frequency DC supply family for protection, control, signaling and emergency DC circuits. GDZW is also commonly written GZDW. Define the DC system, load duties and agreed cabinet configuration using the corresponding model documents.
GDZW DC Power Supply Cabinet Specifications
DC Supply Configuration
| Parameter | Specification / configuration |
|---|---|
| Nominal AC input | 380 V three-phase; 220 V single-phase configurations are selected separately |
| Nominal input frequency | 50 Hz |
| DC output voltage options | 24 / 48 / 110 / 220 V |
| Series output current selection | 5–400 A; selected with the charging-module and load arrangement |
| Battery capacity | Sized for the DC load and required backup duration |
| Operating mode | Continuous |
| Monitoring communication options | RS232 / RS485 |
| Enclosure protection options | IP20–IP40, according to configuration |
Service Conditions
| Parameter | Specification / configuration |
|---|---|
| Standard ambient temperature | −5 to +45 °C |
| Special ambient-temperature option | −10 to +50 °C; configuration review required |
| Altitude | Up to 2000 m; higher sites require a specific design |
| Daily/monthly mean relative humidity | Up to 95% / 90% |
| Installation | Indoor; no explosive hazard, corrosive gases or severe vibration |
Ratings and options apply to the selected configuration. The agreed drawings and equipment schedule define the supplied assembly.
Charging, battery and monitoring functions
The charger supplies the DC system and manages battery charging during normal operation. The battery arrangement supports the agreed DC circuits when the AC supply is unavailable. Module redundancy, battery monitoring, temperature compensation, alarms and remote interfaces are selected according to the operating requirements.
Set the performance requirements
Voltage regulation, current regulation, ripple, efficiency and noise depend on the selected modules and operating conditions. State the required limits in the enquiry so that a suitable configuration can be proposed. The station primary voltage describes the application site; it is separate from the DC output voltage of this auxiliary supply.
Information for Selection
- DC operating voltage and continuous/peak load schedule
- Required backup duration and battery requirements
- AC inputs, redundancy and charger-module arrangement
- Regulation, ripple, alarms, monitoring and communication requirements
Explore the application solutions for your industry and include the project specification with your enquiry.