Lightning strikes can be categorized into two main types: direct lightning and induced lightning. A direct lightning strike occurs when the lightning bolt hits an object directly, causing the most severe damage. On the other hand, induced lightning is caused by the electromagnetic waves generated during a lightning event, which induce high voltages on conductive lines. These high voltages can then damage electrical devices connected to those lines.
Even though multi-level surge arresters are commonly installed on power grids, the residual voltage from the first-level lightning or nearby lightning-induced voltage can still cause harm to the inverter. This is particularly concerning for sensitive equipment like inverters, which may not withstand such voltage spikes.
To protect the inverter, it is recommended to install a surge arrester inside the inverter control cabinet. This arrester can be equipped with a lightning protection module that is mounted on a rail and grounded in parallel. The arrester module uses a gap discharge design, capable of handling an impact current of 15kA (10/350μs) and operates at a working voltage of 250V. Alternatively, a varistor-based surge protector can also be used on the power line to provide additional protection.
By implementing these protective measures, the risk of damage caused by lightning-induced overvoltages can be significantly reduced, ensuring the longevity and reliability of the inverter system.
FRP Ladders,frp cable ladder,fibergrate ladders,fibreglass cable ladder
Hebei Dingshengda Composite Material Co., Ltd. , https://www.frpdsd.com