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Ath the end of this lesson students should be able to:
1. Define per unit value
2. Explain impedance per unit.( Change MVA base and V base)
3. Per unit advantages
4. List right step for selection of base MVA and base Voltage
5.Draw equivalent per unit diagram
6. Solving short circuit faults calculations.

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7. Write per unit formula for 3-phase system

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7. Write per unit formula for 3-phase system

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Q6. Describe THREE (3) advantage of per –unit system.

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Q6. Describe THREE (3) advantage of per –unit system.

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Q5. Find formula for per-unit                                           Vp.u                                                                                        Sp.u                                                                                        Ip.u                                                                                         Zp.u

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Q5. Find formula for per-unit                                           Vp.u                                                                                        Sp.u                                                                                        Ip.u                                                                                         Zp.u

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Q4 Derive three equation for 2st ohm Law- Power 

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Q4 Derive three equation for 2st ohm Law- Power 

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Give Vbase = 1200V
and Sbase= 10MVA

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9. Find procedure  for per-unit analysis

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9. Find procedure  for per-unit analysis

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Q3. Derive three equation for 1st ohm Law-Voltage 

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Q3. Derive three equation for 1st ohm Law-Voltage 

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Define per- unit.

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Per Unit Quantities - Changing the Impedance Base

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This video discusses the use of Per-Unit Quantities in circuits with transformers and demonstrates the advantages of using the Per-Unit method. I invite you to solve the sample problem at the end of video and leave your answers in the comments section below.

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https://www.youtube.com/watch?v=YOOu6qEx2Is&index=2&list=PLRbRqDWCOoNquLcbbI1sh3mvQVzvG23hl

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This video is the second in a series of videos by MovingElectrons.com on the subject of Per-Unit Quantities. Here I give you step by step instructions of finding the unknown quantities using the per-unit method. I invite you to solve the sample problem at the end of video and leave your answers in the comments section below.

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Per Unit Quantities - Changing the Impedance Base

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This video discusses the use of Per-Unit Quantities in circuits with transformers and demonstrates the advantages of using the Per-Unit method. I invite you to solve the sample problem at the end of video and leave your answers in the comments section below.

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https://www.youtube.com/watch?v=gLdUUtknhCk&list=PLRbRqDWCOoNquLcbbI1sh3mvQVzvG23hl&index=5

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This video discusses the use of Per-Unit Quantities in circuits with transformers and demonstrates the advantages of using the Per-Unit method. I invite you to solve the sample problem at the end of video and leave your answers in the comments section below.

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This video discusses the use of Per-Unit Quantities in circuits with transformers and demonstrates the advantages of using the Per-Unit method. I invite you to solve the sample problem at the end of video and leave your answers in the comments section below.

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Power System Analysis (Lecture1.3) Examples

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Power System Analysis Lectures | examples on reactance diagram and pu calculation

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Power System Anaysis (Lecture 1.1) One Line Diagram

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Power System Analysis Lectures | Lecture 1 in power system analysis which discuss one line, impedance& reactance diagrams.

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Power System Analysis (Lecture 1.2) Per unit system

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Power System Analysis Lectures | Per unit system per unit impedance of power system components

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Power System Analysis (Lectre 1.4) Examples

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Power System Analysis Lectures | continue of lecture 1.3

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Power System Analysis Lectures | one of the most important examples in this chapter its always come in final

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Power System Anaysis (Lecture 1.1) One Line Diagram

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Power System Analysis Lectures | Lecture 1 in power system analysis which discuss one line, impedance& reactance diagrams.