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- 2025-06-06Sunwin AC Charging Pile Test DeviceSunwin's AC charging pile test devices, such as the WN1000 series, are designed and manufactured in strict accordance with the national standards GB/T18487.1 - 2015 and GB/T 20234.2 - 2015. They have excellent performance and comprehensive functions, providing reliable guarantees for the quality inspection of AC charging piles.
- 2025-03-28Sunwin Data Center Generator High Voltage Load Bank 2000KW AC10.5KVASunwin 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. - 2025-03-26Application of Sunwin generator load bank in photovoltaic power generation systemPhotovoltaic 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:
Sunwin Charging Resistor
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.
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.
The general working process is: before charging, the pre-charging circuit is connected, and the current is limited to a controllable range through the pre-charging resistor by current limiting, shunting, or other methods (such as connecting a strong impedance to a certain phase when three-phase electricity is completed). After the work is completed, the charging circuit is cut off (or short-circuited) to isolate the pre-charging resistor, so that the system returns to normal working state. As a protective measure, the pre-charging circuit is a common configuration in the locomotive converter, but the parameter design of the pre-charging circuit, especially the pre-charging resistor, is one of the important links in the electrical design of the traction converter.
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