Insulation Coordination Study & Lightning Protection

Objective

Safeguarding electrical systems from lightning strikes and transient overvoltages is critical to ensuring equipment protection and system reliability. This study focuses on designing and evaluating protection systems that prevent damage from these risks. Our goal is to ensure that equipment insulation levels are correctly coordinated to withstand potential hazards and maintain the overall reliability of the system.

Methodology

• Lightning Probability Assessment: We assess the probability of lightning strikes using meteorological data and site-specific conditions.
• Protection System Design: We design comprehensive systems, including air terminals, down conductors, and grounding arrangements, to effectively redirect and dissipate lightning currents.
• Insulation Coordination: We perform insulation coordination studies to determine the withstand voltages for equipment and specify surge protection devices to mitigate transient over-voltage risks.

Examples

We have designed several lightning protection systems for LV, and 11kV to 220kV power systems and substations. This included specifying air terminals, designing a low-resistance grounding system, and selecting surge arresters to protect critical equipment from transient over-voltages.
For renewable power systems, we developed comprehensive lightning protection systems to safeguard DC systems, inverters, transformers, and
control systems.
For hybrid renewable energy systems including BESS, we evaluated the insulation coordination, lightning risks and designed protection measures.

By combining thorough risk assessments with tailored designs, we deliver robust insulation coordination assessments that protect equipment and ensure reliable system performance across diverse energy projects.

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