| Overview | The GZDW series high-frequency switch DC power supply is a dedicated device that provides DC operating power for various closing switches and relay protection devices, and serves as a DC power supply for station control and signaling. It is widely used in power plants of various sizes, substations (stations), electrified railways, substations in large and medium-sized buildings and industrial and mining enterprises, distribution rooms, and locations requiring DC power for emergency lighting. | |
| System Features | ● Dual AC input; ● Composed of multiple independent modules, N+1 backup; ● Uses intelligent management to autonomously perform charging, equalizing charge, and float charging functions, and automatically compensates battery temperature to effectively extend battery life; ● Provides comprehensive monitoring with high intelligence, equipped with standard communication interfaces to achieve four-remote functions; ● Optional configuration of an insulation tester and single battery voltage inspection function; ● The system can be expanded with additional functions: add an inverter for AC distribution output, or add a DC/DC conversion module to achieve DC48V (24V) output. |
Main Technical Parameters Table of GZDW Series High-Frequency Switch DC Power Supply
Note:
1. This table is based on a 220V system; for 110V systems, design can be customized as required.
2. This table is for reference only; the final design is subject to the technical agreement. Batteries above 400AH are generally equipped with battery racks.
| System Operating Principle | The power system is mainly composed of an AC distribution unit, charging modules, monitoring modules, distribution monitoring, a step-down silicon chain (step-down unit), a DC feeder unit (including closing branches and control branches), insulation monitoring, and battery inspection and 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 special requirements, design and processing can be customized accordingly. |
