Electric Power Stations and Substations
Description: The discipline forms the general professional knowledge and skills necessary for the implementation of the diploma project. The discipline is one of the most important for this profile; it has both independent significance for specialists in regime management, and auxiliary for the tasks of selecting electrical circuits and power reserve in power systems
Amount of credits: 5
Пререквизиты:
- Lighting System Design
Course Workload:
| Types of classes | hours |
|---|---|
| Lectures | 15 |
| Practical works | 30 |
| Laboratory works | |
| SAWTG (Student Autonomous Work under Teacher Guidance) | 30 |
| SAW (Student autonomous work) | 75 |
| Course Paper | |
| Form of final control | Exam |
| Final assessment method | a written exam |
Component: University component
Cycle: Profiling disciplines
Goal
- study of electrical equipment and circuits of electrical connections of power plants and substations, preparation of students for various activities aimed at improving the reliability of their work.
Objective
- study of electrical equipment and circuits of electrical connections of power plants and substations, preparation of students for various activities aimed at improving the reliability of their work.
Learning outcome: knowledge and understanding
- know modern electrical equipment and its characteristics
- Possess methods of testing, adjustment and repair of technological equipment in accordance with the profile of the work
Learning outcome: applying knowledge and understanding
- Know the basic circuits of electrical connections of power plants and substations
- Know the design features of switchgear of different types
Learning outcome: formation of judgments
- Have the ability to determine the basic parameters of electrical equipment of power stations and substations, have the skills to analyze the operation and features of electrical equipment of stations and substations, be able to develop electrical circuits of switchgear
Learning outcome: communicative abilities
- Be able to make calculations of stability and transient modes according to electrical circuits of stations and substations, justify the choice of electric power and electrical design calculations
Learning outcome: learning skills or learning abilities
- Be ready to plan and participate in scheduled tests and repairs of equipment of stations and substations, installation, commissioning and start-up works, including during the development of new equipment and (or) technological processes
Teaching methods
In the conditions of credit technology of training, classes should be conducted mainly in active and creative forms. Among the effective pedagogical techniques and technologies that contribute to the involvement of students in the search and management of knowledge, the acquisition of experience in solving problems independently, it should be highlighted: technology of problem- and project-oriented learning; technologies of educational and research activities; communication technologies (discussion, press conference, brainstorming, educational debates and other active forms and methods); case study method (situation analysis); game technologies in which students participate in business, role-playing, simulation games; information and communication (including distance education) technologies.
Assessment of the student's knowledge
Teacher oversees various tasks related to ongoing assessment and determines students' current performance twice during each academic period. Ratings 1 and 2 are formulated based on the outcomes of this ongoing assessment. The student's learning achievements are assessed using a 100-point scale, and the final grades P1 and P2 are calculated as the average of their ongoing performance evaluations. The teacher evaluates the student's work throughout the academic period in alignment with the assignment submission schedule for the discipline. The assessment system may incorporate a mix of written and oral, group and individual formats.
| Period | Type of task | Total |
|---|---|---|
| 1 rating | Entrance control based on residual knowledge of previously studied special disciplines. | 0-100 |
| The report is an abstract. Technological process of EE production at power plants | ||
| SAW. Modes of operation of neutrals in electrical installations | ||
| Oral interview. Main equipment of power stations and substations | ||
| SAW. Construction of substation load graphs. Calculation of indicators of graphs of electrical loads | ||
| Settlement work. Calculation of short-circuit currents for equipment selection | ||
| Testing | ||
| 2 rating | SAW.election of transformers and their features | 0-100 |
| Settlement work. Calculation of short-circuit currents | ||
| Oral interview. Methods for limiting short-circuit currents | ||
| SAW. Calculate and select the electrical equipment of the PS according to the specified voltage class | ||
| Oral interview. Measuring transformers, their purpose and selection criteria | ||
| SAW. Calculation of substation grounding | ||
| Testing | ||
| Total control | Exam, Course Paper | 0-100 |
The evaluating policy of learning outcomes by work type
| Type of task | 90-100 | 70-89 | 50-69 | 0-49 |
|---|---|---|---|---|
| Excellent | Good | Satisfactory | Unsatisfactory |
Evaluation form
The student's final grade in the course is calculated on a 100 point grading scale, it includes:
- 40% of the examination result;
- 60% of current control result.
The final grade is calculated by the formula:
| FG = 0,6 | MT1+MT2 | +0,4E |
| 2 |
Where Midterm 1, Midterm 2are digital equivalents of the grades of Midterm 1 and 2;
E is a digital equivalent of the exam grade.
Final alphabetical grade and its equivalent in points:
The letter grading system for students' academic achievements, corresponding to the numerical equivalent on a four-point scale:
| Alphabetical grade | Numerical value | Points (%) | Traditional grade |
|---|---|---|---|
| A | 4.0 | 95-100 | Excellent |
| A- | 3.67 | 90-94 | |
| B+ | 3.33 | 85-89 | Good |
| B | 3.0 | 80-84 | |
| B- | 2.67 | 75-79 | |
| C+ | 2.33 | 70-74 | |
| C | 2.0 | 65-69 | Satisfactory |
| C- | 1.67 | 60-64 | |
| D+ | 1.33 | 55-59 | |
| D | 1.0 | 50-54 | |
| FX | 0.5 | 25-49 | Unsatisfactory |
| F | 0 | 0-24 |
Topics of lectures
- General information about electrical installations
- The main and auxiliary equipment of power stations and substations and its purpose
- The main electrical equipment of power plants
- Power transformers and autotransformers: main characteristics, cooling systems, switching to parallel operation, permissible systematic and emergency overloads
- Methods of grounding the neutral of the main electrical equipment
- Features of calculations of short-circuit currents (short circuit) for the selection and verification of electrical devices of current-carrying parts
- Types of conductors used in electrical installations
- The process of disconnecting an electrical circuit with a switch
- Classification of high voltage devices
- Classification of disconnectors, types and scope of disconnectors
- Types of current and voltage transformers used in electrical installations of different voltages
- Conditions for the selection and testing of electrical devices: switches, disconnectors, measuring transformers, current limiting reactors
- Diagrams of electrical connections of stations and substations
- The main characteristics of the mechanisms of their own needs
- Operational current sources, control and signaling at power plants and substations
Key reading
- 1.Opoleva G.N. Schemes and substations of power supply: Handbook: Textbook.- M.: FORUM: INFRA-M, 2016.-480 p.-(Higher education). 2. Balakov Yu.N., Misrikhanov M.Sh., Shuntov A.V. Designing circuits of electrical installations: a textbook for universities. – M.: Publishing House of MEI, 2016. – 288 p. 3. Electrical part of stations and substations. Vasiliev A.A., Kryuchkov I.P., Nayashkova E.F. et al. - M.: Energoatomizdat, 2010. - 576 p . 4. Manual for studying the rules of technical operation of power plants and networks. The heat–mechanical part. - M.: Publishing house of NC ENAS, 2017. – 416 p. 5. Electrical equipment of power stations and substations: Textbook / L.D.Rozhkova et al.-M.: Academy, 2014.-448 p.
Further reading
- 1 Rules of technical operation of power stations and networks of the Republic of Kazakhstan . Astana- 15th ed., reprint. and additional , 2015.-325 p. 2 Rules for the installation of electrical installations of the Republic of Kazakhstan.-Astana.: 2015.-176 p.
