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Features with the following specifications: 220v ac to 220v dc rectifier
The 220V 100AH high-frequency switching DC power supply unit is a power supply device used in hydropower and thermal power plants, various substations, and other users of DC equipment. It provides DC power for signal equipment, protection and automatic control devices, emergency lighting, emergency power supplies, and circuit breaker opening and closing operations.
The 220V 100AH high-frequency switching DC power supply unit is a new generation of DC power supply device developed based on advanced and mature design and operating experience and development trends in the field of DC power supplies for power systems. It is available in two structural categories: single-unit cabinet and split-unit cabinet. It is widely used in various power plants, substations, airports, ports, petroleum, metallurgy, chemical, industrial and mining enterprises, and power distribution rooms of hotels and buildings. It provides power for DC mechanisms (circuit breaker opening and closing), relay protection, automatic control, instruments and meters in secondary circuits, emergency lighting, and emergency load power supply, and is particularly suitable for unattended operation.
| Item | Index | Test Condition | ||
|---|---|---|---|---|
| Min Value | Typical Value | Max Value | ||
| Input voltage range (VAC) | 300 | 380 | 485 | Output 240VDC, full load |
| Output adjustable range (VDC) | 176 | 230 | 300 | Input 380VAC, full load |
| Stabilized voltage precision | - | 0.01% | 0.5% | Output 198~286VDC, 20~100% load, input 300~485VAC |
| Stabilized current precision | - | 0.08% | 0.5% | Output 198~286VDC, 20~100% load, input 300~485VAC |
| Dynamic response | 100uS | 150uS | 200uS | Rated output 20~75% load jumps |
| Charging efficiency | 90% | 92% | 93% | Output 240V, 5A, 10A, 20A |
| Maximum audible noise (dB) | - | 45 | 50 | Full load, environmental noise 40dB |
| Storage temperature (℃) | -40 | 25 | 60 | - |
| Working environment temperature (℃) | -10 | 25 | 45 | Output 240V, 5A, 10A, 20A |
| Broadband noise (mV) | 18 | 25 | 40 | Rated input and output, resistive load |
| Peak-to-peak noise (mV) | 100 | 300 | 400 | Rated input and output, resistive load |
| Un-equalizing current degree of parallel machine | ±0.5% | ±2% | ±5% | Rated input and output, monitor equilibrium flow |
| Start-up delay (s) | 3 | 5 | 8 | - |
| Ripple factor | 0.01%~0.1% | 0~20MHz bandwidth | ||
| Dielectric strength | 2000VAC 50Hz | Time is 1 minute, leak current is 10mA | ||
| Load grade | Grade I (100%) rated output current works continuously | In the range of float charging voltage | ||
| Automatic current limiting characteristic | The output current exceeds 110% of rated current | For the constant power protection, the output current shall not increase, and DC voltage shall drop | ||
| Input overvoltage/low-voltage protection | Module protects when input voltage < 313±10Vac or > 485±10Vac. No DC output, yellow indicator on. | After restoring voltage to 335±10Vac ~ 460±15Vac, the module works automatically. | ||
| Input phase loss protection | Limits power output. When output voltage is 260V, 5A current is output. | Works automatically after fault clearance. | ||
| Output overvoltage protection | Stops automatically if output voltage exceeds 293±6VDC. | Manual recovery required (switch off and on). | ||
| Output low-voltage alarm | Alarms when output voltage < 198±1Vdc. Yellow indicator on. | Alarm disappears after voltage recovery. | ||
| Output short circuit retraction function | Output current limit ≤ 40% of rated current during short circuit. | Works automatically after fault clearance. | ||
| Over-temperature protection | Module shuts down voltage output and lights yellow indicator if internal temp exceeds set limit. | Recovers automatically after temperature returns to normal. | ||
