TheElectricalGuy

Switchgear

Learn about the basics of switchgear. Gain the practical knowledge on switchgear from industry experts.

Why Switchgear Control Circuits Use DC Instead of AC
Why Switchgear Control Circuits Use DC Instead of AC 1024 576 Gaurav Joshi

Why do switchgear control circuits rely on DC when the entire system runs on AC? This blog explains Why Switchgear Control Circuits Use DC (Not AC) with simple examples, practical insights, and real-world applications. Learn how DC ensures reliable operation, supports fault protection, and keeps control systems active even during power failure.

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CT vs VT: What’s the Difference Between Current Transformer and Voltage Transformer?
CT vs VT: What’s the Difference Between Current Transformer and Voltage Transformer? 1024 576 Gaurav Joshi

Current transformer and voltage transformer are two major types of instrument transformers used in power systems. Many engineers often get confused between them. In this article, we will clearly explain…

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What Are The Key Parameters of CT?
What Are The Key Parameters of CT? 1024 576 Gaurav Joshi

Learn how different Parameters of CT affect performance in metering and protection applications. Simple explanations with practical clarity.

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What Is the Difference Between 0.2 and 0.2S Accuracy Class in CT
What Is the Difference Between 0.2 and 0.2S Accuracy Class in CT 1024 576 Gaurav Joshi

Learn how 0.2 vs 0.2S CT accuracy differs at low current levels based on IEC standards.

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What are 5P10 & 5P20 in CTs? Complete Guide to Protection Accuracy Classes
What are 5P10 & 5P20 in CTs? Complete Guide to Protection Accuracy Classes 1024 576 Gaurav Joshi

This article explains 5P10 & 5P20 in CTs, covering composite error, accuracy limit factor, burden, and real-world applications.

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What Are Accuracy Classes of CT? Complete Guide to Metering and Protection
What Are Accuracy Classes of CT? Complete Guide to Metering and Protection 1024 576 Gaurav Joshi

Understand Accuracy Classes of CT with simple language, practical examples, and industry-based explanations.

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What Is a CT Burden? Complete Guide to Current Transformer Burden Explained
What Is a CT Burden? Complete Guide to Current Transformer Burden Explained 1024 576 Gaurav Joshi

A complete explanation of CT Burden, including winding resistance, lead wire impact, and its effect on measurement accuracy.

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Why Current Transformer Secondary Must Never Be Open-Circuited
Why Current Transformer Secondary Must Never Be Open-Circuited 1024 576 Gaurav Joshi

Discover how an open CT secondary leads to core saturation, high voltage, and serious safety hazards.

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What Are Types of Current Transformers?
What Are Types of Current Transformers? 1024 574 Gaurav Joshi

This article explains the types of current transformer based on construction, insulation, and design in simple terms.

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Working Principle of Current Transformer: How CTs Measure High Current Safely
Working Principle of Current Transformer: How CTs Measure High Current Safely 1024 576 Gaurav Joshi

Understand how electromagnetic induction helps current transformers step down large current for metering and protection.

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