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XVU is the New Web Brand created by Dr.V.Arivumani for Branding the blogs with new ideas. Xvu is initially derived from 'Arivu (Knowledge in English)'. 

Alternatively, Xvu may be expanded as Xclusive View.  

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RAIVU: A Simple and Accurate Approximation of Voltage Unbalance

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Root Average of Individual Voltage Unbalance (RAIVU) — A voltage-magnitude-based approximation to TAU-based Voltage Unbalance 1. Introduction Voltage unbalance is an important power-quality parameter because unequal phase voltages can produce negative-sequence components, additional losses, torque pulsations, and thermal stress in three-phase electrical equipment. Several simplified voltage-unbalance indices are commonly used, including the Line Voltage Unbalance Rate (LVUR) and statistical measures based on voltage deviation. During my PhD research, I developed an alternative approach called: \[ \boxed{\text{RAIVU — Root Average of Individual Voltage Unbalance}} \] RAIVU estimates voltage unbalance directly from the three measured phase-voltage magnitudes without requiring symmetrical-component calculation. 2. Basic Concept Let the three phase-voltage magnitudes be \[ V_1,\;V_2,\;V_3 \] and their arithmetic mean be \[ V_m=\frac{V_1+V_2+V_3}{3}. \] Define the individual vo...
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GATE 2027 Preparation - Free Mock Test Series on NPTEL GATE portal

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We are happy to share that the GATE 2027 Mock Test Series is starting from 16th August 2026 and will be conducted every Sunday from 2:00 PM – 5:00 PM IST. *Students have to register first. No Fee for Registration* *Registration Link:* gate.nptel.ac.in - Weekly Subject-wise Mock Tests | Exam-like Test Experience - Previous Year Questions' Video Solutions - Performance Analytics and Progress Tracking - Expert-curated Question Bank Please check your email for more details. *We kindly request you to share this with your students and encourage them to register.* Please contact us at gatesupport@nptel.iitm.ac.in if you have any questions. ++++++++++++++++
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Xpiring Indian Premium (XiP) Domains

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