Megger | Insulation Resistance Test - 5 Important Concepts [Electrical Interview Questions Answers]

5 most important concepts & electrical interview questions on IR test [Insulation Resistance test] / megger has been explained in Hindi. Megger | Insulation Resistance Test - 5 Important Concepts [Electrical Interview Questions Answers] Chapters: ---------------- 00:00 Topics to learn 00:43 Is Megger and insulation tester same? 01:23 Why IR decreases when Temp increases 03:06 Why IR increase with time 04:12 Why IR change with length of cable 05:08 Function of guard terminal of megger 06:35 Use of guard terminal 07:18 Guard terminal to eliminate Surface leakage current 08:52 How IR value can be improved CONCEPT DISCUSSED IN THIS VIDEO: ------------------------------------------------------------- 1. Is Megger and insulation tester same? Is Megger test the same as insulation test? Is insulation tester Megger? 2. Why resistance of insulators decreases with increase in temperature? What happens to insulation resistance when temperature increases? What is the effect of temperature on insulation resistance? Why does insulation resistance decreases when temperature increase? How does the insulating property of an insulator change with the rise in temperature? Why does insulation resistance decreases when temperature increase? Why thermal conductivity of insulators increases with temperature? Does thermal conductivity increase with temperature? Does thermal conductivity of insulation change with temperature? 3. why insulation resistance increases with time? Why does insulation resistance increase with time? 4. insulation resistance of cable,cable insulation resistance How does cable length affect leakage current? Does length of cable affect insulation resistance? Does cable insulation resistance depend on cable diameter? Why does insulation resistance decrease with length? Is the insulation resistance directly proportional to length? What happens to insulation resistance when cable length increases? How does insulation resistance vary with length? 5. guard terminal in megger What is the purpose of a guard terminal in high resistance measurements? Why is a guard circuit used? guard terminal in high resistance What is the purpose of guard in Megger? What is the use of guard in megger? importance of guard in Megger guard terminals are recommended for high resistance measurement 6. How can I improve low insulation? What causes low insulation resistance readings? How do you increase the insulation resistance of a transformer? What is the minimum acceptable insulation resistance? What is the minimum IR value? How do you increase insulation resistance? What happens if insulation resistance is low? THIS VIDEO IS FOCUSED ON: ---------------------------------------------- 1. Electrical Engineering 2. Electrical interview questions and answers in hindi Welcome to my YouTube channel - " ElectricalTalks". You will be familiarized with conceptual electrical interview questions and answers for jobs and admissions for higher studies in an easy way. Thank You E-mail Id : EmailElectricalTalks@gmail.com #ElectricalTalks #Megger #InsulationResistanceTest #ElctricalInterview