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As an indispensable equipment in industrial machinery and modern life, diesel generator sets are indispensable in factories, enterprises, office spaces, large shopping malls, schools, hospitals, etc. They are commonly used as backup power sources, and even some households and individuals are using them with a wide range of applications. However, during the use process, users often do not have a special understanding of them, resulting in many types of problems, Especially in the face of some natural climates, improper use often leads to problems of the unit, especially in thunderstorms and rainy days, in the environment of frequent lightning, the generator unit is vulnerable to lightning strikes, leading to equipment damage and production interruption. How to conduct lightning protection for generator set in thunderstorm and rainy days has become one of the matters that every user needs to know.

Firstly, the capacity of diesel generator sets, the strength of local lightning activities, and whether they are reliable can determine whether to adopt more lightning protection. Under the reasonable and safe layout of other equipment and devices, as long as the transformer is well protected, it is generally not necessary to take lightning protection measures on the generator set.

In areas with frequent thunderstorms and rainy weather, in order to prevent lightning waves from passing through the transformer and endangering the insulation of the generator, a set of lightning arresters should be installed on the outgoing line of the generator unit, or lightning protection devices such as lightning strips and rods should be arranged around the unit to avoid being affected by lightning strikes.

Common lightning protection devices generally introduce lightning into the ground to prevent it from directly hitting the generator set. Common lightning protection devices include lightning strips, lightning rods, etc. When selecting and installing lightning protection devices, relevant local national standards and specifications should be followed, and the correct lightning protection device should be selected. Each country's standards and specifications may vary slightly. Before installation, it is necessary to familiarize oneself with their standards or invite local experts for guidance.

Secondly, generator sets directly connected to overhead distribution lines must undergo lightning protection. According to the design specifications of various national standards, generators need to take different lightning protection measures based on different insulation conditions. Due to the different design concepts of each diesel generator set, the lightning protection equipment is also different. When purchasing, it should be understood clearly, and the installation also varies. It is best to install through suppliers or know how to install.

Thirdly, in general, lightning arresters can be installed at the outlet of the motor, and no more than two generators should be connected to each group of buses. Of course, this is also a common situation. Some high demand units may have three or more units in parallel, or when the single unit capacity does not exceed 500kw and the distance from the lightning arrester does not exceed 50m, the lightning arrester can be installed on each group of buses.

Fourthly, it is recommended to install lightning protection devices on the roof where the diesel generator set is located, as this is a common lightning protection measure. When installing lightning rods, it is necessary to ensure that their height and position comply with relevant regulations, as well as whether the lightning protection device meets the installation requirements. The lightning rod can attract lightning and lead it underground to protect the generator set. It should be noted that the lightning protection device must comply with relevant regulations and local weather conditions, and at least two rescue plans for the generator set should be prepared.

Fifthly, regular maintenance of diesel generator sets is also a part of lightning protection measures. Many users define diesel generator sets as durable equipment, so they believe that diesel generator sets do not require excessive maintenance. This is a misconception. As a backup and regular power source, the design concept of diesel generator sets makes them more suitable for regular maintenance to prevent irreversible damage to the generator sets. In terms of lightning protection, we should regularly check the working status of the grounding system, lightning protection devices, and lightning rods of the equipment to ensure their normal operation and not implicate users. At the same time, timely clean up weeds and garbage around the equipment, maintain good ventilation and drainage of the equipment, and prevent multiple damages caused by lightning strikes, which also protects personnel safety.

Sixth, pay attention to the grounding system of diesel generator sets. A good grounding system can quickly introduce lightning into the ground to reduce the impact on equipment. The grounding system should be designed and installed by professional personnel to ensure that the grounding resistance is lower than the specified standards, and it is strictly prohibited to rely solely on lightning protection devices.

The lightning protection measures for diesel generator sets are an important guarantee for ensuring the safe operation of equipment. The key to preventing lightning disasters is prevention, and it is necessary to strictly install lightning protection facilities in accordance with regulatory requirements. Kangruitong Company, as a manufacturer of diesel generator sets, integrates production and sales, and maintains good cooperative relationships with multiple domestic and foreign diesel engine manufacturers. There is no cutting corners in production, and there is no perfunctory installation and after-sales service. The emphasis is on integrity, and selling is not the end. Service has just begun.