Product overview
GZDW intelligent high-frequency switching DC power supply (microcomputer control) is used in large, medium and small power plants and substations as the DC power supply required for high-voltage switch switching, relay protection, automatic control, accident lighting, lighting and sound signals under normal operation and accident conditions; it can also be used in metallurgy, railway, mining, petrochemical, post and telecommunications, communications, medical and health, banks, hotels, high-rise buildings and computer networks and other industries required for DC power supply; microcomputer control DC power supply cabinet can be used for unattended, remote centralized monitoring of power plants, substations and other industries. This product complies with JB/T5777.4-2000 "General Technical Conditions and Safety Requirements for DC Power Supply Equipment in Power System.
Model and meaning
Main technical parameters
◆ 1. Input power supply voltage: three-phase AC 380V ± 10%,50Hz ± 5%;
◆ 2. Output DC voltage rating: 48V;110V;220V;
◆ 3. Output DC current rating: 5A,8A,10A,15A,20A,30A,40A,50A;
◆ 4. Rated capacity of battery: 10Ah,20Ah,38Ah,40Ah,50Ah,60Ah,65Ah,100Ah,150Ah,200Ah,250Ah,300Ah (Note: Special conditions can be negotiated).
◆ 5. Range of voltage regulation table:
| Voltage regulation table range | |||
| Output DC voltage rating | 48V | 110V | 220V |
| Floating voltage adjustment range | 43 57 | 99 130 | 198 260 |
| Average charging voltage adjustment range | 54 62 | 125 140 | 198 286 |
| Main charging voltage regulation range | 43 70 | 99162 | 187 310 |
◆ 6. Output DC current regulation range: 0~100% of the rated value;
◆ 7. Voltage stabilization accuracy:<± 1%;
◆ 8. Accuracy of steady flow:<± 1%;
◆ 9, working mode: continuous work;
◆ 10. Efficiency:>90%;
◆ 11. Protection grade: IP20-HP30.
Use of environmental conditions
◆ 1. Altitude: 2000m and below (if it exceeds 2000m, it can be settled through negotiation with our company);
◆ 2. Ambient temperature:-5 ℃ ~ 40 ℃;
◆ 3. Relative humidity: the daily average value is not more than 85%(+25 ℃);
◆ 4, special conditions can be negotiated with the company to solve
◆ 5. The scope of application of different specifications is shown in the following table:
| Product Model | Serial Number Description | Specification (type) Scope of application |
| GZDW-30-Mouth/Mouth | Single battery, single bus section, two two-wire output charging floating charging device, no step-down circuit | 10 Power plant or large substation |
| GZDW-31-Mouth/Mouth | Single battery, single bus, two two-wire output charging floating charging device, no step-down circuit | 10 Power plant or large substation |
| GZDW-32-Mouth/Mouth | Single battery, single bus section, two two-wire output charging floating charging device | 20 12KV-220kV substations and small and medium-sized power plants |
| GZDW-33-Mouth/Mouth | Single battery, double bus, two double-wire output charging floating charging device | 20 12kV-220kV substations and small and medium-sized power plants |
| GZDW-34-Mouth/Mouth | Single battery, double bus section, two three-wire output charging floating charging device | 20 12kV-220kV substations and small and medium-sized power plants |
| GZDW-35-Mouth/Mouth | Single battery, double bus, two three-wire output charging floating charging device | 20 12kV-220kV substations and small and medium-sized power plants |
| GZDW-40-Mouth/Mouth | Double battery, single bus section, two two-wire output charging floating charging device, no step-down circuit | 10 Important power plants or large substations |
| GZDW-41-Mouth/Mouth | Double battery, double bus, two two-line output charging floating charging device | 12 12kV-220kV substations and small and medium-sized power plants |
| GZDW-42-Mouth/Mouth | Single battery, double bus section, three two-wire output charging floating charging device | 10 Important power plants or large substations |
| GZDW-43-Mouth/Mouth | Single battery, double bus, two double-wire output charging floating charging device | 12 12kV-220kV substations and small and medium-sized power plants |