【電験三種】電力 令和7年上期 問16　問題読解力とイメージ力

This question asks about the magnitude of the fault current and bus voltage when a three-phase short circuit occurs on the secondary side of a substation. This video uses diagrams to explain the calculation process along the way and is designed to be even easier to understand than the video on our website, so please watch until the end. The key to solving this problem is impedance conversion and calculation ability. 0:00 Introduction, Profile, and New Book Introduction 01:06 Question 02:33 Quick Explanation 1. Transformer Turns Ratio, Voltage Transformation Ratio, Current Transformation Ratio, and Impedance Ratio 04:01 Answer and Explanation (a) 08:29 Answer and Explanation (b) 10:01 Summary --------------------------------------- ★Explanation from the Denken-ou website (Electrical Engineer Examination, Class 3, Power, 2025, First Half, Question 16) https://denken-ou.com/denryokur7-1-16/ ☆Similar Question: Electrical Engineer Examination, Class 3, Power, 2011, Question 16 https://denken-ou.com/denryokuh23-16/ ★[E-Book Version of Denken-ou] Electrical Engineer Examination, Class 3, 4 Subjects Second half of 2020 edition Year order https://denken-ou-tanaoroshi.com/item... Sort by field https://denken-ou-tanaoroshi.com/item... Class 3 electricity by subject Yearly order https://denken-ou-tanaoroshi.com/item... baeb3a47d2d5bf84 By subject: https://denken-ou-tanaoroshi.com/item... ★Download the trial version [E-book version of Denken-O] https://denken-ou-tanaoroshi.com/item... ★Click here for the paperback version Available on Amazon [E-book version of Denken-O] Electrical Engineering Examination, Grade 3, 4 Subjects, Second Half of 2025 https://amzn.to/4nRHKru ★New Reference Book from a Collaboration between Electrical Engineering Academia and Denken-O [Thermal Power Generation] Electrical Engineering Warrior Textbook - Denken Soldiers Spellbook - https://denkenia-archives.stores.jp/i... [DC Circuits] Electrical Engineering Warrior Textbook - Denken Soldiers Spellbook - https://denkenia-archives.stores.jp/i... --------------------------------------- #Electrical Engineering Examination, Grade 3 #Electrical Power #Past Exam Questions and Answers #Denken-O #First Half of 2025 #Question 16 #Power Distribution #Fault Current Magnitude