The HD22010-3 series charging module is the most important configuration module for power supply, widely used in substation power supply from 35kV to 330kV.
The HD22010-3 series charging module adopts a combination of self cooling and air cooling heat dissipation methods, and operates automatically under light load, which is in line with the actual operation of the power system.
The charging module HD22010-3 adopts advanced phase-shifting resonant high-frequency soft switching power supply technology and innovative self cooling/air cooling compatible heat dissipation design, achieving world-class efficiency. Adopting a built-in CPU distributed control method, the work is stable and reliable. Certified according to CE safety regulations and electromagnetic compatibility standards, and passed national and industry product type inspections.

The HD22010-3 series charging module is the most important configuration module for power supply, widely used in substation power supply from 35kV to 330kV.
The HD22010-3 series charging module adopts a combination of self cooling and air cooling heat dissipation methods, and operates automatically under light load, which is in line with the actual operation of the power system.
The charging module HD22010-3 adopts advanced phase-shifting resonant high-frequency soft switching power supply technology and innovative self cooling/air cooling compatible heat dissipation design, achieving world-class efficiency. Adopting a built-in CPU distributed control method, the work is stable and reliable. Certified according to CE safety regulations and electromagnetic compatibility standards, and passed national and industry product type inspections.

Input voltage: 323~475V, three-phase three wire system
Power factor: ≥ 0.92 Module efficiency: ≥ 94%
Output DC voltage: 176~286V DC/220V
Maximum output current: 110% of rated output current
Current output limiting characteristic: 10~100% adjustable rated current
Voltage stabilization accuracy: ≤± 0.5% Current stabilization accuracy: ≤± 0.5%
Wenbo coefficient: ≤ 0.05% External dimensions (height * width * depth): 288mm * 139mm * 467mm
Whole machine weight: ≤ 15kg Environmental temperature: -10C~+40C
The HD22010-3 charging module consists of two power parts: three-phase passive PFC and DC/DC. In addition to the two power components, there is also an auxiliary power supply and input-output detection
Protect the circuit.
The front-end three-phase passive PFC circuit consists of input EMI and three-phase passive PFC, which is used to achieve rectification and filtering of AC input and correction of input current, making the input power
The power factor of the circuit is greater than 0.94 to meet the three-phase harmonic standard in DL/T781-2001 and the relevant EMI and EMC standards in GB/T 17794.2.2-2003.
The DC/DC converter in the rear stage is controlled by a PWM generator to output the DC voltage from the PFC in the front stage, which is then rectified and filtered through a high-frequency transformer to output the DC voltage
The circuit is composed to convert the rectified voltage of the preceding stage into a stable DC voltage output required by the power operating system.
After the input of the three-phase passive PFC, the auxiliary power supply utilizes the DC output of the three-phase passive PFC before the DC/DC converter to generate various electrical signals required for the control circuit
Source.
The input detection circuit realizes the detection of input overvoltage, undervoltage, and phase loss. The detection and protection circuit of DC/DC includes detection of output voltage and current, detection of radiator temperature, etc,

Main functions of HD22010-3
1. Protection function
1) Input over/under voltage protection
The module has input overvoltage/undervoltage protection function. When the input voltage is less than 313 ± 10Vac or greater than 485 ± 10Vac, the module is protected and there is no DC output, indicating protection
The light (yellow) is on. After the voltage is restored to between 335 ± 10Vac and 460 ± 15Vac, the module automatically resumes operation.
2) Output overvoltage protection/undervoltage alarm
The module has an output overvoltage protection and undervoltage alarm function. When the output voltage is greater than 325 ± 5VDC, the module is protected and there is no DC output. The protection indicator light (yellow) is on.
The module cannot automatically recover and must be powered off and then back on.
When the output voltage is less than 198 ± 1VDC, the module will sound an alarm, there will be DC output, and the protection indicator light (yellow) will be on. After the voltage is restored, the module output undervoltage alarm disappears.
3) Short circuit retraction
The module has a short-circuit retraction function. When the module output is short circuited, the output current shall not exceed 40% of the rated current. After eliminating the short circuit factor, the module automatically resumes normal output.
4) Lack of phase protection
The module has a phase loss protection function. When there is a phase loss in the input, the module limits power and can output at half load. Output 5A current at an output voltage of 260V.
5) Over temperature protection
When the air inlet of the module is blocked or the ambient temperature is too high, causing the temperature inside the module to exceed the set value, the module will provide over temperature protection. The protection indicator light on the module panel (yellow)
The color is bright and the module has no voltage output. When the abnormal conditions are cleared and the temperature inside the module returns to normal, the module will automatically resume normal operation.
6) Primary overcurrent protection
Under abnormal conditions, overcurrent occurs on the rectifier side of the module, and the module is protected. The module cannot automatically recover and must be powered off and then back on.
2. Other functions
1) Fan temperature control
The module uses a combination of temperature and current to control the rotation of the fan. The fan speed is divided into three levels: stop, half turn, and full turn. The fan speed control is carried out by considering the output current and module temperature comprehensively.
2) Fault display
The module alarm information flashes in real-time on the LED in the form of fault codes. At this point, the LED display changes to a fault code, and after pressing the display switch button, the voltage is displayed.
3) Communication function
The module can communicate with the upper computer in RS485 mode. Send the module output voltage and current, module protection and alarm information to the upper computer, receive and execute the control commands issued by the upper computer