Rack-mounted AC/DC Load Bank - Yangzhou Darui - Yangzhou Darui Electric Co., Ltd.

Rack-mounted AC/DC Load Bank - Yangzhou Darui

Published: 2020-08-22 15:55:02

Category: Battery Charge-Discharge Tester

Product Description

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Power Unit

The rack-mounted AC/DC load bank uses cylindrical pure resistive nickel-cadmium power dissipation elements. The resistors are heat-sealed inside alloy tubes, with insulating heat sinks on the outside of the tubes, providing good insulation. Its advantages include excellent thermal temperature coefficient, no red-hot phenomenon during long-term use, good consistency, and a power factor reaching above 0.99. Advantages of the rack-mounted AC/DC load bank: made of alloy material, high temperature resistance, high power factor, good consistency; it comes with heat dissipation fins and is equipped with high-power axial fans on the side to ensure reliable operation at high temperatures for extended periods. As the load part of the power unit, it uses nickel-chromium alloy with a low thermal coefficient, wrapped in an anti-oxidation filling layer, and composed of stainless steel sleeves. The exterior uses metal fins to increase the heat dissipation area, ensuring that even without cooling, the power rods will not burn out after 48 hours of continuous operation. After production, the power rods typically undergo a 24-hour full-load treatment, with a stable resistance error of less than ±1%. To ensure long-term stable use of the power load unit, we adopt a combination of small power units. By increasing the number of power units, we reduce the high heat dissipation per unit area and delay the increase in resistance and decrease in power due to aging. Heat Dissipation Unit The load bank has a comprehensive heat dissipation system: it uses forced air cooling, with 2 high-power axial fans installed on one side of the load section, significantly reducing the operating temperature of the load equipment and ensuring reliable heat dissipation. The fans are equipped with speed control devices, and the fan speed is manually adjustable. Rack-mounted AC/DC load bank Fan parameters: Voltage: 220V Power: 80W Speed: 2600r/m Airflow: 17m3/min Chassis Unit The load bank's enclosure is made of cold-rolled steel plate, providing good form stability and extending the service life of the load bank. The appearance is coated with polyester spray paint, offering anti-corrosion, moisture-proof, anti-oxidation, and anti-smoke corrosion properties for outdoor placement. The air inlet and outlet are fitted with wire mesh with a mesh aperture not exceeding 10mm, which improves the safety protection level while ensuring ventilation. The chassis has grounding bolts at the bottom. Connection Wire Unit The internal connections of the load equipment use cables with larger specifications than those used at room temperature (200W and 500W gears use 1.5mm² cables, 1500W gear uses 2.5mm² cables), ensuring normal operation of the load equipment at high temperatures for extended periods. Control Unit Controlled by air switches, which are convenient to use and occupy minimal space. The load uses 6 switches, and the fan uses 1 switch to control loading and heat dissipation. Rack-mounted AC/DC load bank Gear distribution: each gear is 1KW, with a total of 6 gears; the fan has a separate gear, making a total of 7 gears (arrangement optional). Display Unit (optional) 1. Measurement accuracy: 1% ± 2 digits 2. Display: LCD (visible screen 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 terminals for three-phase 6KW. However, due to the height of the chassis, if this input method is added, the chassis height needs to be increased. 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 with axial fans, capable of long-term operation; 7. Working mode: controlled by air switches to control the on/off of the load, with load controlled in gears 8. Control method: manual air switch. 9. Power input method: C13 interface or TB3504 10. Chassis dimensions: 265*490*700 (subject to actual)

Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.

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Product Details

Rack-mounted AC/DC Load Bank - Yangzhou Darui