Load type matching: Select resistive/inductive/capacitive or comprehensive load box according to the device under test to ensure that the power factor is consistent with the actual load.

Heat dissipation design: High-power load boxes must be equipped with a reliable cooling system to avoid overheating and test interruption or equipment damage.

Safety protection: Built-in overcurrent and overheating protection devices, ensure good grounding during testing and stay away from flammable environments.

Application of Sunwin high-power high-voltage load bank in various industries

The higher the voltage in the transmission network, the less heat and work is lost during the transmission process, so high voltage electricity has a high utilization efficiency of resources. For generator sets, high voltage means higher cost performance. However, after the generator set outlet voltage is increased, the insulation requirements are also higher. Due to the manufacturing process of components, the insulation resistance of the generator set can reach a limited range, so the output voltage cannot be increased indefinitely. At present, the mainstream high-voltage generator sets are mostly capped at 10.5KV voltage.

High-power AC load bank is a device used for simulating and absorbing AC electrical energy. By adjusting parameters such as its own resistance, inductance, and capacitance, it can simulate various load conditions of different natures and sizes. It plays a crucial role in multiple fields and has a wide and diverse application range.

1. Core advantages
Safety: Replace real loads (such as motors and heating equipment) to avoid damage to actual loads during testing.
Flexibility: Power and power factor are adjustable to meet the testing needs of multiple scenarios (from kW-level small UPS to MW-level generators).
Data: Integrate sensors and smart meters to monitor parameters such as voltage, current, power, temperature rise in real time, and support remote monitoring and data analysis.

2. Technical development trends
Intelligence and digitalization: Equipped with PLC or industrial computer, support remote control (such as through Modbus, TCP/IP protocol), automatic loading/unloading programs and fault diagnosis. Combined with the Internet of Things (IoT), cloud storage and big data analysis of test data can be realized to optimize equipment maintenance strategies.
Efficient energy saving: Resistive load bank introduce energy recovery technology (such as converting heat energy into hot water or electricity to feed back to the grid) to reduce energy consumption.
Modular design: By connecting multiple load units in parallel, the power capacity can be flexibly expanded to adapt to different test scales.
High-precision simulation: Develop high-frequency, wide-band load bank for new energy equipment (such as electric vehicle charging piles and energy storage inverters) to simulate complex nonlinear load characteristics.

1. Power generation equipment testing Generators (diesel/gasoline/gas generators)
2. Power system testing UPS (uninterruptible power supply):
3. Power grid and distribution system test
4. Equipment aging and reliability test

Pre-charging resistors are often used in specific aspects such as electronic devices, batteries, and inverters. For different devices, the working methods are not exactly the same, but the purpose is to avoid the large current of the charging power supply at the beginning of charging from causing possible damage or damage to the device.

Load bank is a device used to simulate the load of electrical equipment. It consumes or converts electrical energy through equivalent impedance (resistance, inductance, capacitance) to test the load characteristics of power supply or power generation equipment. Its core principle is to simulate the power consumption of real load through adjustable impedance elements, so as to detect the stability, output capacity and efficiency of the power supply system and other performance indicators.

Sunwin Data Center Generator High Voltage Load Bank is used for testing diesel backup generator sets in large data centers. Large data centers require uninterrupted power supply to ensure continuous operation, and backup generator sets are an important part of ensuring uninterrupted power supply. Therefore, backup generator sets need to use such load detection equipment for regular loading and maintenance to prevent serious losses caused by unexpected power supply situations.




Sunwin Data Center Generator High Voltage Load Bank can test the output power and load capacity of data center backup generator sets, and perform sudden loading and unloading tests to understand their performance status and establish a physical examination report for them. Accurately measure the basic functions such as steady-state three-phase voltage, current, active power, frequency, and running time of the generator; voltage and frequency setting test, fluctuation test, and transient test functions, which can automatically test the maximum and minimum voltage, maximum and minimum current, maximum and minimum frequency, and recovery time when the load changes suddenly; and has a powerful voltage recording function, which can not only call for all steady-state parameters, but also call for sudden addition, sudden unloading, voltage, current, frequency curves, and voltage, current harmonic curves and harmonic content, and cooperate with the host computer to automatically complete the measurement of all electrical parameters and dynamic parameters of the generator.

Photovoltaic power generation system is a new energy system that uses solar energy to generate electricity, and the generator load bank is an important part of the photovoltaic power generation system. The generator load bank can achieve reactive power compensation by adjusting the current phase and voltage amplitude, thereby improving the efficiency and reliability of the photovoltaic power generation system.

In the photovoltaic power generation system, due to the instability of solar energy and the influence of weather, the output voltage and current of the photovoltaic battery group will fluctuate, thereby affecting the efficiency and reliability of the photovoltaic power generation system. The generator load bank can achieve reactive power compensation by adjusting the current phase and voltage amplitude, thereby eliminating the reactive current in the power system and improving the efficiency and stability of the photovoltaic power generation system.

The application of the generator load bank in the photovoltaic power generation system mainly includes the following aspects:

• Load simulation principle: The load bank mainly tests the performance of power supply equipment by simulating various actual loads. Its core is to use components such as resistors, inductors, capacitors, etc. to form different types of loads. For example, resistive loads are used to simulate purely resistive electrical equipment, such as electric heaters, etc., and the load size is adjusted by changing the resistance value; inductive loads can simulate devices with inductive characteristics such as motors, which will cause the current to lag behind the voltage; capacitive loads are similar to some electronic devices with capacitive characteristics, and the current will lead the voltage. By combining these different types of load components, various complex actual load conditions can be simulated.
• Power consumption and heat dissipation principle: The load bank consumes a lot of electrical energy when working, which is converted into heat energy. In order to ensure that the load bank can work normally and not be damaged due to overheating, a good heat dissipation mechanism is required. Common heat dissipation methods include natural heat dissipation, forced air cooling and water cooling. Natural heat dissipation relies on the device's own heat dissipation structure to dissipate heat into the surrounding environment, which is suitable for load banks with lower power; forced air cooling is to install a fan to accelerate air flow to remove heat, which is a common heat dissipation method for medium-power load banks; water cooling uses circulating water to cool the load bank, which has good heat dissipation effect and is suitable for high-power load banks.