Electroguide

Ambient Backscatter IoT Sensors: A Step-by-Step Energy-Harvesting RF Tutorial

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Introduction With the rise of the Internet of Things (IoT), the demand for power-efficient and maintenance-free sensors has surged. Traditional wireless sensors depend on batteries, which limit device lifespan and introduce environmental concerns. An innovative solution to this problem is ambient backscatter communication, a technique that enables devices to transmit data by reflecting existing ambient … Read more

Magnetically Controlled Shunt Reactor (MCSR): Voltage Control and Reactive Power Compensation in HV Substations

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By ElectroGuide.tech  📑 Table of Contents What is a Magnetically Controlled Shunt Reactor (MCSR)? Why Reactive Power Compensation is Crucial How MCSR Works: Design and Control Principles MCSR vs Fixed Shunt Reactors Applications of MCSR in HV and EHV Substations MCSR Impact on Ferranti Effect and Voltage Stability Capacitor Banks vs MCSRs: Which to Choose? … Read more

Substation Reactive Power Compensation Equipment: Types, Design, and Applications Explained

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In modern power systems, reactive power compensation in substations is essential to maintain voltage levels, improve power factor, and enhance overall grid stability. This article explains the types of equipment used, how they work, practical applications, and how you can design an efficient compensation system. Whether you’re an engineer, utility planner, or student, this guide … Read more

Shunt Reactors and Capacitor Banks in Substations

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🔋 Shunt Reactors and Capacitor Banks in Substations: Voltage Control, Reactive Power, and Harmonic Filtering By ElectroGuide.tech 📅 Introduction Power quality is a critical aspect of modern substations, especially with increasing grid complexity and distributed energy sources. Among the key tools used for maintaining voltage stability and improving reactive power balance are shunt reactors, capacitor … Read more

Important Electrical Safety Quiz Questions and Answers

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Section A: Fundamentals of Electrical Safety (Q1–Q20) Why is grounding important in an electrical system? a) It enhances voltage output b) It improves energy efficiency c) It provides a safe path for fault current to flow d) It reduces insulation thickness requirementsAnswer: c) It provides a safe path for fault current to flowExplanation: Grounding helps … Read more

Significance of Back EMF in DC Motor: Working, Formula, and Role in Current Regulation

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What is Back EMF in DC Motor? Working, Formula & Significance of Back EMF Table of Contents What is Back EMF in a DC Motor? How Back EMF is Generated Back EMF Formula in DC Motor Role of Back EMF in Armature Current Regulation Voltage Equation of a DC Motor Power Equation and Its Significance … Read more

Instrument Transformers vs. Power Transformers: Key Differences & Uses Explained (CT, PT, Substations)

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Got it! Here’s your improved WordPress blog in plain text format (no HTML tags), ready to paste directly into the WordPress visual editor — with proper headings, internal linking suggestions, transition words, and improved readability. Power Transformer vs Instrument Transformer: Key Differences Explained In the modern electrical grid, transformers play a silent but crucial role. … Read more

Accuracy Class of CTs and PTs: Explained with Examples

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CT PT Accuracy Class

When designing or analyzing an electrical measurement and protection system, one of the most important aspects to understand is the accuracy class of Current Transformers (CTs) and Potential Transformers (PTs). These instrument transformers are essential for stepping down high voltages and currents to safe and measurable levels. But how accurately they perform that job depends … Read more

Potential Transformers (PTs): Working Principle, Types, and Applications

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In the vast world of electrical power systems, accuracy and safety are paramount. One of the essential devices ensuring both is the Potential Transformer (PT), often referred to as a voltage transformer. From monitoring high voltages in substations to feeding precise input to protective relays and meters, PTs play a crucial role. This article explores … Read more

Transformer Primary and Secondary Current Calculation: Formula, Example, and Diagrama

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Transformer

Transformer Primary and Secondary Current Calculation: Formula, Example Transformers are the backbone of power distribution systems. Whether you’re designing, analyzing, or studying transformers, it’s essential to know how to calculate transformer HV and LV side current accurately. You’ll learn: How to calculate transformer HV and LV side current? Transformer primary and secondary current formula? 3-phase … Read more