| Overview | The GZDW series high-frequency switching DC power supplies are specialized devices designed to provide DC operating power for various circuit breaker closing switches and relay protection devices, as well as DC power for power station control and signaling. They are widely used in power plants of all sizes, substations, electrified railways, substations in large and medium-sized buildings and industrial enterprises, distribution rooms, and locations where DC power is required for emergency lighting. | |
| System Features | ● Dual AC input channels; ● Composed of multiple independent modules with N+1 redundancy; ● Employs intelligent management to autonomously complete charging, equalizing charging, and float charging functions while automatically compensating for battery temperature to extend battery life; ● Comprehensive monitoring with high intelligence, equipped with standard communication interfaces to achieve four remote functions; ● Optional configuration of insulation testers and single battery voltage inspection; ● The system can be expanded with additional functions: adding an inverter for AC distribution output or a DC/DC conversion module for DC48V (24V) output. |
Main Technical Specifications Table for the GZDW Series High-Frequency Switching DC Power Supplies
Note:
1. This table is based on a 220V system; for 110V systems, designs can be made as required.
2. This table is for reference only; the final design shall be subject to the technical agreement. Battery banks over 400AH generally include battery racks.
| System Operation Principle | The power system is mainly composed of an AC distribution unit, charging modules, monitoring modules, distribution monitoring, a voltage-dropping silicon chain (voltage-dropping unit), DC feeding units (including circuit breaker branches and control branches), insulation monitoring, and battery inspection, among other components. | |
| Technical Specifications | Input Voltage: AC 380V ±20%; Voltage Regulation Accuracy: ≤±0.5% Current Regulation Accuracy: ≤±0.5% Ripple Factor: <±0.5% Conversion Efficiency: ≥92% Noise: ≤55dB (measured at 1 meter in front of and behind the door when closed) | |
| Ordering Instructions | Please specify the model, panel dimensions, and color; The capacity and quantity of the accompanying batteries; If there are any special requirements, design and processing can be carried out accordingly. |
