Sunwin'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.

In shipyards, the application of load banks runs through multiple links of ship power system construction and testing, which is crucial to ensure the safe and stable operation of ships, which is specifically reflected in the following aspects:

(I) Intelligent development
With the continuous development of technologies such as artificial intelligence and the Internet of Things, programmable AC and DC load banks will move towards intelligence. Future load banks will have functions such as intelligent diagnosis, automatic calibration, and remote monitoring. They will be able to automatically analyze the status of equipment based on test data, predict potential faults, and realize remote operation and management, thereby improving test efficiency and management level.

Programmable load bank is a highly flexible and intelligent electronic load device.

(I) Market competition situation At present, the market of programmable AC/DC load bank is highly competitive, and many domestic and foreign companies have launched their own products. Foreign brands such as EA Elektro-Automatik of Germany and Kikusui Electronics of Japan have occupied a certain share in the high-end market with their advanced technology and long-term market accumulation; domestic brands are also rising, gradually expanding their market share through technological innovation and cost-effective advantages. Market competition is mainly reflected in product performance, price, service and brand influence.

(I) New energy power generation field
(II) Electric vehicle charging facility field
(III) Power electronic equipment manufacturing field

In the development process of the power industry, testing technology has always been the key support to ensure the safe and stable operation of power equipment. With the rapid advancement of science and technology, the complexity of the power system is increasing day by day, and higher requirements are placed on the accuracy, function and adaptability of test equipment. Qingdao Sunwin Programmable AC and DC Load Bank came into being. With its excellent performance, advanced technology and wide application scenarios, it has brought a new experience to power testing and has become an indispensable assistant in the power industry.

In addition to professional charging pile test equipment, Qingdao Sunwin Technologies Co., Ltd. is also committed to providing overall solutions for new energy vehicle testing, covering multiple key areas, and promoting the comprehensive development of the new energy vehicle industry.

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.