The high-frequency switch DC power system is mainly used in small and medium-sized power plants, hydropower stations, substations and other users using DC equipment. It is suitable for switch cabinet separation and closing power supply and secondary circuit, instruments, meters, relay protection, accident lighting and other occasions. The product has the characteristics of high conversion efficiency, low electromagnetic interference, sufficient reliability and safety of the system, and advanced functions such as smooth regulation of output voltage, current and automatic temperature compensation of battery.
The HGDW high‑frequency switch DC power supply system is offered in capacities from 38 Ah to 1500 Ah and voltage levels of 220 VDC, 110 VDC and 48 VDC. It is intended for use in small‑ to medium‑size power plants, hydro stations, substations and other DC‑powered applications, providing power for switchgear, instrumentation, protection and emergency lighting.
The system uses a modular design with hot‑swap charging modules, a distributed monitoring system (remote measurement, signaling, control and adjustment), and supports multiple communication interfaces (RS‑232, RS‑485, RS‑422). It complies with IEC and UL standards, offers high efficiency (>94 %), low electromagnetic interference, and features automatic battery management and protection. This manual is written in Chinese.
| Capacity range | 38 Ah – 1500 Ah |
|---|---|
| Supported voltage levels | 220 VDC, 110 VDC, 48 VDC |
| Efficiency | > 94 % |
| Power factor | > 0.92 |
| Communication interfaces | RS‑232, RS‑485, RS‑422 |
It is used in small‑ to medium‑size power plants, hydro power stations, substations and other users of DC equipment, such as switchgear power, secondary circuits, instruments, protection and emergency lighting.
The monitoring module supports four remote functions: telemetry, tele‑signalling, remote control and remote adjustment, enabling unattended or minimally staffed operation.