Earthing and Lightning Protection: in fact, such systems mainly installed for the grid-connected solar power generating plants are meant to save these plants from destructive effects of lightning strokes. Most people pay attention to direct lightning strokes, but in fact, indirect lightning strikes also threaten considerable damage.
Once lightning strikes somewhere, it creates a very high voltage in an adjacent area, which could be in adjacent electrical circuits, caused when lightning strikes near structures or in the ground. Solar panels are not engaging direct strikes; damaged due to indirect lightning protection's inadequacy.
Solar panels are normally located at rooftops or laid in open grounds-the elevated positions that serve as their potential targets to lightning. The poorly grounded system does have the ability of allowing energy surge due to indirect striking to pass through cables and inverters to the main power grid. It instigates cascading failures at the site of installation as well as across connected infrastructure. In the worst of cases, transformers can be damaged, leading to a blackout or, even worse, fire.
Also, systems of solar panels usually have long runs of DC cable as well as metal frames during a lightning event, and they can act as conductors. This energy can therefore pass directly through the grid, bypassing surge protection devices if bonding and earthing are not done properly. The situation is worsened by ground loops, potential differences, and EMI so that one should have sound earthing and lightning protection measures for any installation in solar energy.
For instance, it would worsen the problem in rural or remote installations because local earthing may not be available or even maintained. The smallest of power surges created by a distant strike would therefore be expected to cause the fine give-away of the integrity of the most sensitive components such as MPPT charge controllers or inverters. A comprehensive protection plan would include surge arresters, bonding conductors, proper electrodes, and a schedule of regular maintenance checks.
In summary, ill lightning protection does not just endanger individual solar systems; much is claimed against the reinforced larger network connected to the grid. Indeed, a cost-effective long-term assurance toward performance and security of power delivery, even in the face of unexpected natural elements, can be established when investing in right EARTHING AND LIGHTNING PROTECTION.
