What are the main causes of high-voltage disconnection faults in new energy vehicles?

1 Answers
ValentinaFitz
07/30/25 6:37am
The main cause of high-voltage disconnection faults in new energy vehicles is inadequate protection, leading to short circuits or leaks, which subsequently affects the normal operation of the vehicle. The following is expanded content: High-voltage electrical faults: High-voltage electrical faults are also one of the more common issues in new energy vehicles. The primary cause is inadequate protection, resulting in short circuits or leaks, which then impacts the vehicle's normal operation. During the operation of new energy vehicles, a certain level of pressure must be maintained, placing high demands on insulation protection. If protection is insufficient, leakage can occur, posing significant hazards and serious threats to both drivers and passengers. Therefore, it is essential to maintain stable and sufficient voltage in new energy vehicles, ensuring the performance of insulation protection to prevent high-voltage electrical faults. Power battery faults: The power battery is the key component supporting the operation of new energy vehicles. Unlike traditional vehicles, new energy vehicles rely on electricity, with the major advantage of zero carbon dioxide emissions, effectively realizing the concept of energy conservation and environmental protection. Additionally, new energy vehicles employ new technologies and structures, resulting in higher efficiency. However, at this stage, the development of new energy vehicles in China is not yet mature and has not been widely adopted, leading to charging difficulties and short driving ranges. Once the power battery malfunctions, the new energy vehicle may become completely inoperable. Currently, many electric vehicles in China use small lithium batteries, which are not very stable in performance and have limited capacity. Over time, various issues can arise, affecting the service life of new energy vehicle batteries.
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