Portable Resistive Load Bank Offering Flexible Load Testing Capabilities for Electrical Maintenance and Commissioning

1. For pure resistive loads, the power factor

= 1; utilizes surface-mount resistor components with a resistance accuracy of ±3%; provides a pure resistive output that simulates real resistive load conditions, making it suitable for various AC power supply aging tests and performance evaluations.

2. Adjustable range, precise step resolution

Power Ratings: 100W,200W,200W,500W,1000W,2000W,3000W,3000W; minimum adjustment step: 100W; allows for flexible combination to achieve any power output between 0–10 kW.

3. Portable mobile design

The entire unit is equipped with a carrying handle and universal casters; its compact dimensions are ≤670×250×730 mm, its weight is ≤50 kg, enabling flexible movement on indoor floors.

4. Forced air cooling system

Equipped with 6 × 12038 cooling fans arranged in a directional airflow path from left to right, these fans continuously dissipate the heat generated by the resistors, enabling continuous online operation 24/7.

1. UPS and Inverter Power Supply Testing

Single-phase AC 220/250V inverter: full-load, half-load, and overload simulation tests; aging test

2.Energy storage inverters and portable energy storage power sources testing

Outdoor power supply and integrated energy storage system: continuous load-carrying capacity, discharge performance, and temperature rise test

3. Generator sets and small backup power supply load-bearing tests

Factory-load verification and periodic maintenance load testing for small single-phase gasoline/diesel generators

4. Aging test for charging pile AC modules and AC power supply modules

Power supply manufacturer's production line aging and reliability verification

Q1:What is the maximum voltage this load cabinet can withstand?

A:Rated AC 250V; the short-term maximum allowable voltage is 1.1 times the rated voltage (AC 275V); prolonged overvoltage will trigger the overvoltage protection; it is strictly prohibited to operate at voltages exceeding 250V for extended periods.

Q2:Can it operate continuously at full power of 10 kW for extended periods?

A: Supports 24/7 continuous operation; however, it requires proper environmental ventilation and an ambient temperature range of –10°C to 50°C, and the air inlets and outlets must not be blocked; for high-temperature environments, it is recommended to allocate additional power margin.

Q3: Can the load be fine-tuned to any power level? What is the minimum power level achievable for adjustment?

A:Minimum step size: 100W; gear settings can be freely combined; minimum load capacity: 100W; enables arbitrary power setting between 0–10 kW in increments of 100W.

Q4: What are the possible causes for a fan not rotating or for the equipment to trigger a high-temperature alarm?

A:

① The air intake and exhaust vents are blocked by debris;

② The ambient temperature is too high;

③ The fan is faulty; triggering the overheat protection will cause the load to be automatically unloaded; the unit must be shut down for cooling and troubleshooting.