With the rapid development of the new energy industry, the application of new energy equipment such as photovoltaic, wind power, and energy storage is becoming more and more extensive. As the core component of new energy equipment, the rationality of the selection of electrical accessories directly affects the operating efficiency, safety and reliability of the equipment. Compared with traditional industrial electrical accessories, electrical accessories for new energy equipment have higher requirements for high voltage resistance, high temperature resistance, waterproof and dustproof, anti-interference and other performances. Improper selection will lead to equipment failure, reduced efficiency, and even safety accidents. Today, we will detail the selection points of electrical accessories for new energy equipment, providing professional reference for new energy enterprises and engineering companies.​
1. High Voltage Resistance Selection: New energy equipment (such as photovoltaic inverters, energy storage battery packs) usually works in a high-voltage environment. Therefore, electrical accessories (such as high-voltage circuit breakers, high-voltage terminal blocks, cable glands) must have good high-voltage resistance. Their rated voltage must be higher than the working voltage of the equipment, and they must comply with national high-voltage electrical safety standards to avoid short circuits, leakage and other faults caused by high-voltage breakdown.​
2. High Temperature and Low Temperature Resistance Selection: Most new energy equipment operates outdoors or in complex environments, facing extreme weather such as high temperature and low temperature. Electrical accessories must have excellent high temperature and low temperature resistance. For example, when photovoltaic equipment is exposed to the sun outdoors, the ambient temperature can reach above 60℃, and the accessories must be able to work stably in high temperature environments without aging or deformation; when wind power equipment operates in cold areas, the accessories must be able to withstand low temperatures below -40℃ to ensure good contact of contacts and stable insulation performance.​
3. Waterproof and Dustproof Performance Selection: Outdoor new energy equipment (such as photovoltaic modules, wind power control cabinets) is vulnerable to rain and dust erosion. Therefore, electrical accessories must have a high waterproof and dustproof level (IP65 and above is recommended). Especially for exposed accessories such as terminal blocks and cable glands, models with good sealing performance should be selected to prevent rain and dust from entering the interior, leading to accessory damage and equipment failure.​
4. Anti-Interference Performance Selection: New energy equipment will generate electromagnetic interference during operation, and is also vulnerable to the influence of the external electromagnetic environment. Therefore, electrical accessories must have good anti-interference performance to avoid misoperation of accessories and abnormal operation of equipment caused by electromagnetic interference. For example, relays, sensors and other accessories should be selected with strong anti-electromagnetic interference ability to ensure stable signal transmission.​
5. Compatibility Selection: The electrical system of new energy equipment is relatively complex, and the compatibility between various accessories is crucial. When selecting, it is necessary to ensure that the specifications and interfaces of the accessories are fully compatible with the electrical system of the equipment, so as to avoid equipment failure due to compatibility issues. At the same time, give priority to accessories compatible with the equipment brand to improve the overall reliability of the system.​
We focus on the supply of electrical accessories for new energy equipment, covering various special accessories such as high-voltage circuit breakers, waterproof terminal blocks, and anti-interference relays. All products comply with new energy industry standards, with excellent high-voltage resistance, high-temperature resistance, waterproof and dustproof performance. We can provide customized selection schemes according to the equipment needs of customers, helping new energy equipment operate stably and efficiently.