Electrical machinery design requires knowledge other than electrical engineering such as heat transfer engineering, fluid
mechanics, material mechanics, manufacturing procedure, etc. in addition to electrical engineering knowledge such as electromagnetics,
electrical machinery. Therefore, as first step this course introduces the foundation of structure, manufacturing procedure,
material selection, cooling method, temperature calculation, magnetic circuit calculation and etc. of electric machinery
to students taking this course.
Then, this course introduces the practicable and elementary design procedure of a single-phase transformer and a synchronous machine and foundation of drawing to students taking this course.
Then, this course introduces the practicable and elementary design procedure of a single-phase transformer and a synchronous machine and foundation of drawing to students taking this course.
The purpose of the class is to acquire that the foundation of structures, material, principle and drawing which are necessary
for design of electrical machinery, and the practicable and elementary design procedure of electrical machinery (transformer
and synchronous machine).
- Being able to explain the structure, used material and operating principle of a transformer and a rotating machine.
- Being able to explain technical details (heat transfer, mechanical strength, ventilation, etc.) other than the electrical engineering required for designing electrical machinery.
- Being able to carry out elementary and practicable design of a single-phase transformer and a synchronous machine.
- Being able to understand the basics of drawing method and contents of elementary drawing.
| Report for transformer | Report for synchronous machine | Short exercises in class | Total. | |
|---|---|---|---|---|
| 1. | 5% | 10% | 5% | 20% |
| 2. | 5% | 10% | 10% | 25% |
| 3. | 10% | 40% | 50% | |
| 4. | 5% | 5% | ||
| Total. | 20% | 60% | 20% | - |
Your overall grade in the class will be decided based on the following;
Several short exercises in class (20%)
Report for transformer (20%)
Report for synchronous machine (60%)
To pass, students must earn at least 60 points out of 100.
The report is evaluated below, assuming that the entire design process has been implemented.
95%; There are a few minor errors (miss calculation, etc.), but no errors in basic thinking.
80%; There are a few errors in basic thinking, or many minor errors (miss calculation, etc.).
60%; Although there are few minor errors (miss calculation, etc.), there are many errors in basic thinking.
The short exercises is conducted to enhance the understanding of the lecture contents.
Therefore, students may get an 80% grade, by taking the preparation and review time described in the syllabus.
Several short exercises in class (20%)
Report for transformer (20%)
Report for synchronous machine (60%)
To pass, students must earn at least 60 points out of 100.
The report is evaluated below, assuming that the entire design process has been implemented.
95%; There are a few minor errors (miss calculation, etc.), but no errors in basic thinking.
80%; There are a few errors in basic thinking, or many minor errors (miss calculation, etc.).
60%; Although there are few minor errors (miss calculation, etc.), there are many errors in basic thinking.
The short exercises is conducted to enhance the understanding of the lecture contents.
Therefore, students may get an 80% grade, by taking the preparation and review time described in the syllabus.
| Class schedule | HW assignments (Including preparation and review of the class.) | Amount of Time Required | |
|---|---|---|---|
| 1. | · Guidance · Introduction to electrical machinery design History , classification and progress of electrical machinery Flow of electrical machinery design What is required of designers Difference between design, development and research (Chapter 1 of the textbook) · Matters required for designing electrical machinery (specifications, standards, legal regulations) (Chapter 2 of the textbook) |
Preparation of textbook | 30minutes |
| 2. | · Basic structure of electrical machinery (rotating machine, transformer), part name and manufacturing method · Materials used for electrical machinery and required characteristics(magnetic material, conductive material, insulation material, etc.) (Chapter 3 of the textbook) |
Preparation of textbook and handout materials | 50minutes |
| Review of exercise in the class | 45minutes | ||
| 3. | · Foundations of heat transfer and temperature calculation of electrical emachinery (Chapter 4 of the textbook) · Cooling method and protection method for electrical machinery (Chapter 5 and 6 of the textbook) |
Preparation of textbook and handout materials | 50minutes |
| Review of exercise in the class | 45minutes | ||
| 4. | · Type, structure, manufacturing method and materials of electrical emachinery windings (Chapter 8 of the textbook) · Calculation of induced electromotive force (Chapter 7 of the textbook) |
Preparation of textbook and handout materials | 50minutes |
| 5. | · Calculation of magnetic circuit and magnetomotive force (Chapter 10 of the textbook) ·Type and calculation method of reactance (Chapter 9 of the textbook) ·Per-unit system |
Preparation of textbook and handout materials | 50minutes |
| Review of exercise in the class | 45minutes | ||
| 6. | · Loss (type, generation principle and calculation method) and efficiency of electrical machinery (Chapter 11 of the textbook) · Relationship between electrical loading, magnetic loading, output equation and electrical machinery dimensions (Chapter 13 of the textbook) |
Preparation of textbook and handout materials | 50minutes |
| 7. | · Design of single phase transformer Determination of core dimensions Determination of arrangement and dimension of winding |
Preparation of textbook and handout materials | 50minutes |
| Completion of exercise in the class | 120minutes | ||
| 8. | · Mechanical constraints on rotating machines (Chapter 14 of the textbook) · Basic characteristics of synchronous machine (characteristic curve and equivalent circuit) · Design of synchronous machine (1) Outline of design procedure and required specification |
Preparation of textbook and handout materials | 50minutes |
| Review of exercise in the class | 45minutes | ||
| 9. | · Design of synchronous machine (2) Determination of stator core size and number of slots |
Review of exercise in the class | 120minutes |
| 10. | · Design of synchronous machine (3) Determination of arrangement and dimension of stator winding, and calculation of armature reaction magnetomotive force |
Review of exercise in the class | 120minutes |
| 11. | · Design of synchronous machine (4) Calculation of stator winding temperature Determination of detailed stator core dimension and design of magnetic circuit |
Review of exercise in the class | 120minutes |
| 12. | · Design of synchronous machine (5) Determination of pole core dimension and design of magnetic circuit Determination of arrangement and dimension of field winding Calculation of characteristic curves and field current |
Review of exercise in the class | 120minutes |
| 13. | · Design of synchronous machine (6) Calculation of field winding temperature Calculation of losses and efficiency |
Review of exercise in the class | 120minutes |
| 14. | · Foundation of drawing (Chapter 16 of the textbook) · Application of numerical analysis in electrical machinery design |
Preparation of textbook and handout materials | 50minutes |
| Total. | - | - | 1330minutes |
| ways of feedback | specific contents about "Other" |
|---|---|
| Feedback in the class |
Textbook : 炭谷英夫著「電気学会大学講座 電機設計概論 設計基礎から製図の基本まで（４版改訂）」オーム社
( ISBN 978-4-88686-262-4 )
Handout materials
( ISBN 978-4-88686-262-4 )
Handout materials
Fundamentals of Electrical Machinery & Apparatus 1 and 2 are recommended to have learnt.
- After the class or via email (muraoka.masayoshi.n2@sic.shibaura-it.ac.jp)
- Course that cultivates a basic problem-solving skills
| Work experience | Work experience and relevance to the course content if applicable |
|---|---|
| Applicable | Taking advantage of experience engaged in the design and development work of rotating machines, I teach that the foundation of structures, material, principle and drawing which are necessary for design of electrical machinery, and the practicable and elementary design procedure of electrical machinery . |
Last modified : Thu Mar 06 10:16:51 JST 2025