GZDW DC Power Supply Cabinet
Product Overview
The GZDW series DC power supply cabinets are applied in power plants and substations of all sizes, providing DC power for high-voltage switch tripping/closing, relay protection, automatic control, emergency lighting, and audio-visual signals under normal and emergency conditions. They also serve DC power needs in industries like metallurgy, rail, mining, petrochemicals, telecommunications, healthcare, and high-rise buildings. The microcomputer-controlled models are suitable for unattended, remotely monitored DC power systems in power plants, substations, and other sectors.
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Product Features
- The main monitoring system features a 240*64 dot matrix LCD with Chinese character menu display, operated via membrane keys.
- Measures DC bus voltage (main and control buses), battery current, and control bus current.
- Calibrates measurement/display values via software, eliminating the need for potentiometer adjustments.
- Integrates DC system bus insulation monitoring.
- Equipped with temperature compensation function.
- Supports single battery bank and single-bus non-segmented systems.
- Provides MODBUS protocol for backend communication, enabling "Four Remote Functions" (remote monitoring, control, adjustment, and signaling).
Product Details & Applications
Operating Conditions
- Altitude: ≤2000m
- Ambient Temperature: -5°C to +40°C
- Relative Humidity: ≤95% (at 20±5°C) Note: For applications exceeding the above conditions, please consult our company for customization.
Technical Specifications
| No. | Items | Data |
|---|---|---|
| 1 | Input supply voltage | 3-Phase AC 380±10%, 50Hz±5% |
| 2 | Rated output DC voltage | 24V, 48V, 110V, 220V |
| 3 | Rated output DC current | 5A, 8A, 10A, 15A, 20A, 30A, 40A, 50A, 80A, 100A, 150A, 200A, 250A |
| 4 | Rated battery capacity | 10Ah, 20Ah, 38Ah, 40Ah, 50Ah, 60Ah, 65Ah, 80Ah, 100Ah, 150Ah, 200Ah, 250Ah, 300Ah, 400Ah |
| 5 | Voltage regulation range | See the table below |
| 6 | Output DC current regulation range | 0-100% of the rating |
| 7 | Voltage regulation accuracy | < ±1% |
| 8 | Current regulation accuracy | < ±1% |
| 9 | Ripple coefficient | < 1% |
| 10 | Overall noise | < 55dB |
| 11 | Main transformer temperature rise | 70℃ |
| 12 | Operation mode | Continuous operation |
| 13 | Efficiency | 90% |
| 14 | Protection level | IP20~IP30 |
Voltage Regulation Settings
| Rated output DC voltage | 24V | 48V | 110V | 220V |
|---|---|---|---|---|
| Float charging voltage regulation range | 21-28 | 43-57 | 99-130 | 198-260 |
| Equalizing charging voltage regulation range | 27-31 | 54-62 | 125-140 | 198-286 |
| Main charging voltage regulation range | 21-36 | 43-70 | 99-162 | 187-310 |
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