Electronic load bank is a device used to simulate actual load, mainly used for testing, debugging and maintenance of power systems, electrical equipment and electronic equipment. The following is a detailed introduction:

Structural composition

• Resistor: It is the core component of the load bank and is responsible for generating load current.

• Controller: Used to adjust the resistance value of the resistor to achieve control of the load current.

• Protective device: Used to protect the load bank and the device under test from overload, short circuit and other faults.

• Connecting wire: Used to connect the load bank to the device under test.

• Transformer and voltage regulator: Used to adjust the input voltage and current to the appropriate level.

• Components such as filters, rectifiers, inverters and high-power UPS: Some AC load banks also contain these components to provide more complex load simulation functions.

Main functions

• Simulate actual load: According to actual needs, different load conditions can be simulated, such as constant current load, constant voltage load, constant power load, etc., to meet various testing and debugging needs.

• Adjust the load size: By adjusting the resistance value of the resistor through the controller, the size of the load current can be easily changed to achieve precise control of the load.

• Protection function: With overload, short circuit and other protection functions, it can effectively protect the load bank and the equipment under test from the impact of faults.

• Display and recording function: Usually equipped with display and recording equipment, it can display the load current, voltage and other information in real time, and record the test data for easy analysis and evaluation.

Working principle

Simulate different load characteristics by changing the resistance value of the resistor. When the resistor is connected to the circuit, it consumes a certain amount of electrical energy, thereby generating heat. By changing the resistance value of the resistor, the power of the current flowing through the resistor can be changed, thereby changing the heat generated. Therefore, by adjusting the resistance value of the resistor, the simulation of load characteristics such as constant power load, constant current load, constant voltage load, etc. can be achieved.

Application field

• Power system: used for testing and debugging of generator sets, transformers, switchgear, etc., as well as load simulation and analysis of power grid systems.

• Electrical equipment: used for testing and debugging of motors, inverters, rectifiers and other equipment, as well as performance evaluation and fault diagnosis.

• Electronic equipment: used for testing and debugging of communication equipment, computer equipment, power supply equipment, etc., as well as performance evaluation and fault diagnosis.

• New energy vehicle industry: used to test the load performance and safety of equipment such as electric vehicle chargers and power battery packs.

• Industrial automation: in automated control systems, used to simulate load conditions and test the stability and reliability of control systems.

• Scientific research and laboratories: as a scientific research tool, used to study the performance of power supply equipment under different load conditions.

Advantages and characteristics

• Easy operation: modular design, compact structure, easy operation and convenient maintenance.

• High precision: using high-precision circuits, resistors and controllers and other components, high-precision parameter measurement and data analysis are achieved.

• Strong reliability: the internal resistor is mainly used as a load element, with high reliability and stability. The equipment uses high-quality electrical components and advanced control technology to ensure the high reliability and stability of the equipment, and is equipped with a variety of protection functions, such as overload protection, over-temperature protection, etc.

• Good flexibility: With rich scalability and customization, the load bank is usually equipped with multiple independent loads. Each load has multiple functions and can be switched through a conversion switch to simulate various complex load conditions.