Rack-Mounted AC/DC Load BankDarui Electric recommends
Product IntroductionAs the load part of the power unit, it uses nickel-chromium alloy with low thermal sensitivity, wrapped in an anti-oxidation filling layer outside the alloy material, and composed of stainless steel套管. The external metal fins increase the heat dissipation area. Even without heat dissipation, the power rod will not burn out after 48 hours of dry operation.
After production, the power rod is usually subjected to full-load treatment for 24 hours, with a stable resistance error of less than ±1%. To ensure long-term stable use of the power load unit, we adopt a small-power multi-combination method. By increasing the number of power units, we reduce the high heat dissipation per unit area and delay the aging resistance---gradual power decline.
Heat Dissipation Unit
The load heat dissipation system is complete: the load bank uses forced air cooling, with two high-power axial fans installed on one side of the load part, greatly reducing the temperature during operation and ensuring reliable heat dissipation.
The fans are equipped with a speed control device, and the fan speed is manually adjustable.
Fan Parameters:
Voltage: 220V
Power: 80W
Speed: 2600r/min
Airflow: 17m3/min
Enclosure Unit
The load bank shell is made of cold-rolled steel plate, with good shape retention and long service life; the appearance is coated with polyester spray, providing anti-corrosion, moisture-proof, anti-oxidation, and anti-smoke corrosion for outdoor placement.
The air inlet and outlet of the load bank are equipped with wire mesh, with a mesh aperture not exceeding 10mm, improving safety protection while ensuring ventilation. A grounding bolt is provided at the bottom of the shell.
Connection Cable Unit
The internal connection of the load equipment uses cables, with specifications upgraded based on normal temperature usage (1.5mm2 cable for 200W and 500W gears, 2.5mm2 cable for 1500W gear), ensuring long-term normal operation of the load equipment under high temperature conditions.
Control Unit
Controlled by air switches, which are easy to use and occupy little space. The load uses 6 switches, and the fan uses 1 switch for load control and heat dissipation.
Gear Distribution: 1kW per gear, 6 gears in total; fan as a separate gear, total 7 gears (arrangement optional). AC/DC Rack-Mounted Load Bank
Display Unit (Optional)
1. Measurement Accuracy: 1%±2 digits
2. Display: LCD liquid crystal display (screen visible size: 43*25mm)
4. Power Consumption: <0.5VA
5. Measurement Speed: Approximately 2 times per second
6. Operating Power: AC220V±10%
Load Input
Method 1: Load input uses TB3504 terminal, for three-phase 6kW. However, due to the limited height of the chassis, if this input method is added, the chassis height needs to be increased. AC/DC Rack-Mounted Load Bank
Main Technical Performance and Parameters 1. Load Voltage: AC220V/380V; DC270V
2. Power Factor: 0.99;
3. Installed Capacity: 6kW;
4. Fan Voltage: AC220V;
5. Applicable Temperature Range: -10~60℃; Humidity Range: <90%RH.
6. Cooling Method: Forced air cooling, using axial fans, capable of long-term operation;
7. Working Mode: Control the on/off of the load through air switches, with load gear control;
8. Control Mode: Manual air switch.
9. Power Input Method: C13 interface or TB3504
10. Chassis Dimensions: 265*490*700 (subject to actual)
Load Comparison
1. Appearance Comparison
Heating Plate Type: Completely exposed to air, prone to oxidation, resistance may vary
Alloy Resistor: Sealed in a stainless steel tube with magnesium oxide filling to prevent oxidation
2. Resistance Comparison
Heating Plate Type: Large resistance change rate when heated, unstable
Alloy Resistor: Made of alloy material, small temperature drift coefficient during heating
3. Usage Comparison
Heating Plate Type: The outer surface is electrified during use, dangerous
Alloy Resistor: Completely sealed, no electricity on the outer surface during use, safe
Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.
