GQH-D DC Power System
The product is available for emergency use to avoid affecting normal work due to sudden outage and thus damaging equipment; it eliminates “power pollution” such as power surge, instantaneous high voltage, instantaneous low voltage, wire noise and frequency offset on the mains supply, improving the quality of power supply, providing high-quality power supply for the equipment.
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High-frequency soft-switch technology
The latest high-frequency resonant soft-switch technology is adopted to realize zero-on and zero-off of high-frequency switches in the switching process, and improve the efficiency and power density of the system.
Modular design
The charging device uses multiple high-frequency switching modules connected in parallel. N + 1 hot backup, smooth expanding of capacity and plugging with electricity are available. These modules have an integrated interface to improve system stability and reliability.
Perfect monitoring function
Highly intelligence, large screen LCD Chinese character display, touch screen with touch function, and sound and light alarm are utilized.
Fully intelligent design
Full-parameter local and remote monitoring is realized for components of the system such as AC distribution, rectifier module and DC feeder; the main monitoring quantities are: module on/off, charging mode, output voltage regulation, output current limiting point setting, dual AC automatic switching, battery automatic management and so on.
The monitoring system is equipped with standard RS-232/485 interface
The standard communication protocol of the Ministry of Power is adopted to facilitate access to the automation system. Open protocol is provided to facilitate networking, and simply realize “four remote controls” and unattended operation.
Automatic management and automatic maintenance of the storage battery
Real-time monitoring of the terminal voltage of the battery pack, charge and discharge current, equalized charging and floating charging automatic control of single battery voltage, and equalized charging regular maintenance.
It has battery temperature compensation function
Effectively improving the service life of the battery.
Rectifier module operation is simple to operate and use
It can be plugged with electricity, which is more convenient for installation, maintenance and replacement.
| AC input voltage | 380V±15% |
| Power network frequency | 50Hz±10% |
| Output current grade | 10A-320A |
| Usable battery capacity | 10AH-3000AH |
| Rated output voltage | 220V/110V |
| Output voltage range | 198V~286V/99V~143V continuously adjustable |
| Output current limitation | Rated current × (10%~110%) |
| Stabilized voltage precision | ≤±0.3% |
| Stabilized current presicion | ≤±0.3% |
| Degree of unbalance for average current | ≤土3% |
| Ripple ratio | ≤0.1% |
| Efficiency | ≥93% |
| Power factor | ≥0.93 |
| Output overvoltage protection | 295±5V/155V±2V |
| Output undervoltage protection | 190V±2V/85V±2V |
| Insulation resistance | ≥10M |
| Insulation strength | Output to ground, input to ground, input applying 2KVAC to output, 1min with no flashover |
| Relative humidity | ≤90% |
| Seismic intensity | ≤7 degrees |
| Ambient temperature | -5℃~45℃ |
| Audible noise | Natural cooling ≤40dB |
| Protection grade | ≥IP30 |
| Dimension (Length*Width*Height) | 2260mm×800mm×600mm |
