Lesson plan for Intermediate Maintenance Electrician Technique .

Basic Concepts of Power Systems:

The whole process of production, transmission, distribution and use of electrical energy is realized in the same instant.

What kind of textbooks do you want for the intermediate electrician grade certificate, I got it in Luoyang Mechanical and Electrical School, their school is the test center, and the pass rate is quite high, you know.

The main forms of power generation are: hydropower, thermal power, nuclear energy, solar energy, wind power, geothermal, tidal, biopower generation, etc.

The basic requirements for the power system: safe, reliable, high-quality, economical.

Power quality: Voltage and frequency are two important indicators to measure power quality.

Rated voltage of power grid and main electrical equipment (kv):

Low voltage: high voltage: 3 6 10 35 66 110 220 330 500 The allowable voltage deviation of the power line is generally 5%, the first end can be 5% higher than the rated voltage, and the end can be 5% lower than the rated voltage.

Power frequency: The rated frequency of AC power equipment in China is 50Hz, and this frequency is collectively referred to as "power frequency".

National Maintenance Electrician Intermediate (Level 4) Skills Assessment: 1. The theory is assessed in the form of test papers, and the 100-point paper is qualified with more than 60 points.

2. There are three contents of the operation assessment module (note: the content module can be different in different regions, determined by the local labor department), and the general selection is 40 points for power drag assembly and connection (or 40 points for electronic circuit welding), 40 points for troubleshooting of machine tool electrical circuits, 10 points for instrument use, and 10 points for safety standard operation. Out of 100 points in the operation, the three additions reach more than 60 points.

3. The two contents of theory and operation are passed with more than 60 points respectively.

4. The general principle, strict assessment operation, and relaxed assessment theory, because the theory involves a wide range of content, it is difficult to fully support the intermediate workers, just to understand, and know more content. Generally, you can pass by memorizing the test papers (about 10 test papers) in the question bank. The operation assessment should be proficient, and it has a specified time and specification requirements to complete.

The main task of intermediate workers is to solve general practical technical problems, so they do not emphasize theory.

5. It is recommended that you go to the assessment point for training and then participate in the assessment, which is targeted. Generally, secondary vocational schools at the county level with electrical majors have maintenance electrician assessment points.

Hope it helps.

I graduated from junior high school.

"Intermediate Maintenance Electrician Technology" is compiled according to the "People's Republic of China Vocational Skills Appraisal Specification - Maintenance Electrician", which is a vocational skills training textbook, suitable for intermediate maintenance electricians. The book consists of eight chapters. The content includes motors, electrical appliances, transformers, welding machines, low-voltage power and lighting circuits, automatic control of electric traction and electronic technology applications.

The book is divided into eight modules, the main contents are safe electricity, basic operation technology of electrician, use and maintenance of commonly used electrical instruments, selection and use of commonly used electrical equipment, motors and transformers, basic control of power drag, analysis and maintenance of typical machine tool control circuits, installation and debugging of electronic circuits, etc. Because intermediate maintenance electricians must be based on the knowledge and skills of junior maintenance electricians, this book is taught and trained in the order of shallow to deep, from easy to difficult, and from elementary to intermediate. Each module is a system of its own.

In the last unit of each module, there is a skill training upgrade and unit assessment of this module, and it is equipped with a detailed assessment code grade standard, which can be used as a reference for skill training and unit assessment; Each module is followed by practice questions for students to further consolidate their knowledge after class. The book also comes with an e-learning reference kit (including a teaching guide, e-lesson plans, and exercise answers), as detailed in the preface.

The book is based on the "National Occupational Standards - Maintenance Electricians" issued by the National Skills Appraisal Center, and is closely related to the national vocational skills appraisal specifications. This book can be used for the teaching and training of electrician professional skills in secondary vocational schools, and can also be used as a teaching book for maintenance electrician primary and intermediate certification training.

This book is intended for technicians with the duties of a senior maintenance electrician and can also be used as a textbook for advanced technician training.