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Showing posts from December, 2025

Lightning Arrester vs Surge Arrester: Key Differences, Applications and Selection Guide

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A building or an industrial plant stays safe even during powerful lightning strikes or sudden voltage spikes. But how? Lightning arresters and surge arresters provide this protection. But many people assume both as the same thing.  They both protect electrical systems, right? Well, not exactly. Are you confused? This blog will discuss how the devices respond differently to different threats and help you decide which one you need.  Let’s explore. 1. Lightning arresters protect against direct lightning strikes. Surge arresters protect against internal surges. This is the easiest and the biggest difference to remember.  A lightning arrester: Crafted to divert high voltage and current coming from a direct lightning event. It acts as a shield, protecting the building's electrical system from lightning energy.  A surge arrester: Deals with sudden voltage spikes that come from switching operations, transformer issues, or indirect lightning influence. The...

From Grid to Renewables: Role of Type 2 SPDs in Solar and Wind Power Installations

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  Solar plants or wind turbines suddenly shut down, even without any visible fault. Also, many expensive inverters and controllers fail without warning. But why? It’s not the equipment’s fault every time; the real troublemaker is the silent surges traveling through the electrical network. That is where  surge protection devices  come in.    In this blog, we will break down how a  surge protection device type 2  helps protect solar and wind installations and why it has become a must-have component in modern renewable projects. 1. Type 2 SPDs protect against the most common surges in solar and wind farms Surges only come from lightning. Is it true? Not totally. Solar plants and wind farms generate their own switching surges through inverters, transformers, motors, and capacitors. That’s where a  surge protection device SPD  plays an essential role. Type 2 SPDs installed at the AC distribution board prevent these surges from damaging sen...