| Overview | The GZDW series high-frequency switching DC power supply is a dedicated device designed to provide a DC operating power supply for various circuit closing switches and relay protection devices, as well as serving as the DC power supply for station control and signaling. It is widely used in small, medium, and large power plants, substations, electrified railways, substations and distribution rooms in large to medium-sized buildings and industrial or enterprise facilities, as well as in locations requiring emergency lighting via DC power. | |
| System Features | ● Two AC input lines; ● Composed of multiple independent modules with N+1 redundancy; ● Utilizes intelligent management to autonomously complete charging, equalizing charging, and float charging functions, while automatically compensating for battery temperature to effectively extend battery life; ● Complete monitoring functions with high intelligence, equipped with standard communication interfaces to achieve four remote operations; ● Optional configuration for insulation testers and individual battery voltage inspection; ● The system can be expanded with additional functions: an inverter can be added for AC distribution output, and a DC/DC conversion module can be added to achieve DC48V (24V) output. |
GZDW Series High-Frequency Switching DC Power Supply Main Technical Parameters
Note:
1. This table is specified for a 220V system; for a 110V system, designs can be customized as required.
2. This table is for reference only. The specific details shall be based on the technical agreement. Battery racks are generally configured for batteries over 400AH.
| System Operation Principle | The power supply system mainly consists of the AC distribution unit, charging module, monitoring module, distribution monitoring, buck silicon chain (buck unit), DC feeder unit (including circuit closing branch and control branch), insulation monitoring, and battery inspection, among other parts. | |
| Technical Specifications | Input voltage: AC 380V ±20% ; Voltage regulation accuracy: ≦±0.5% Current regulation accuracy: ≦±0.5% Ripple coefficient: <±0.5% Conversion efficiency: ≧92% Noise: ≦55dB (at 1 meter from the front and back doors when closed) | |
| Ordering Information | Please specify the model, display dimensions, and color; The capacity and quantity of the matching batteries; If there are any special requirements, design and processing can be carried out accordingly. |
