Books on basic knowledge of electric power are inseparable from electricity almost everywhere in our daily life. Electricity is closely related to our life, so many people want to master the basic knowledge of electric power, but they don't know where to start. Let's take a look at the basic knowledge books on electricity first.
Basic knowledge of electric power books 1 electrician books.
Fundamentals of electrical engineering
"Fundamentals of Electrician" needs to be familiar with circuit diagram coding, judge circuit components and basic symbols, and know three circuits and basic operation instructions. The circuit itself is relatively simple. As long as you can read the drawings, know the components and know the layout of the circuit, you will basically get started. Still relatively comprehensive, novice learning is very suitable.
Low voltage electrician operation
This book is a necessary book for initial evidence collection and review training of low-voltage electrician operation certificate, and it is also the training material of low-voltage electrician operation certificate (special operation certificate). Based on the assessment standard of state administration of work safety and the actual situation of low-voltage electrical workers.
National Regulations on Electric Power Safety Work
Finally, we all know that electricity is dangerous, so we must be careful in our future work. In this regard, I suggest you buy a copy of the National Electric Power Safety Work Regulations and study hard. The key is to always remember safety.
Talking about electrician experience
First of all, as a zero-based student, we must first learn some basic knowledge of electricity, such as what is current, what is voltage, resistance, power, and their relationship, and some basic theorems and laws, which must be understood in order to facilitate further study. All kinds of books in this field are similar, and it doesn't matter which one is more professional, because they are all basic knowledge.
Secondly, no matter you are engaged in maintenance, design, experiment and research and development in the future, you should learn to use some basic tools, such as electric pen, multimeter, shaking table, bridge, DC resistance tester and so on. Isn't there a proverb called "sharpening a knife doesn't mistake a woodcutter"? Then learn to use a gun before going to war.
What are the application conditions for the primary electrician certificate?
To participate in the primary electrician certificate examination should meet the following conditions:
1, 18 years old, under 55 years old, with junior high school education or above;
2, good health, no epilepsy, mental illness, heart disease, sudden fainting, color blindness and other diseases and physical defects that hinder electrician operation;
3. Hold the post operation certificate of this type of work (this condition is only applicable to certain types of work).
Basic knowledge of electric power Volume II "Fundamentals of Analog Electronics Technology"; Fundamentals of digital electronic technology: national general higher education planning textbooks during the tenth five-year plan period. As the most popular teaching material of analog and digital electricity in China, the content is very detailed and the examples are very representative. The mooc in the school is online. With online teaching videos, we can better understand relevant theories.
Fundamentals of circuit analysis: the basic theory of circuit is comprehensively expounded, and new circuit technologies are introduced appropriately. One of the required reading materials related to electricity.
Power electronics technology: the most classic book for undergraduate teaching of power electronics in China. The structure of the book is clear and easy to learn by yourself. At first glance, you may be confused. When you learn to build a knowledge framework in the future, you can fill it in smoothly. The warp and weft are interwoven into a knowledge network, which needs to be combed one by one. Mindmanager is recommended.
"When we first entered the company, the company's technical skills would recommend us to read power electronics technology, motors and drives, and a book on Sun Xiao's study of frequency conversion."
Motor and drive: introduce the working principle, structural characteristics, electromagnetic relationship and energy relationship of DC motor, transformer, AC motor and control motor, briefly introduce the basic knowledge and method of motor capacity selection, and the application example of three-phase asynchronous motor control circuit.
Sun Xiao studies frequency conversion: This paper introduces the main functions of frequency converter, the design and application of frequency conversion speed regulation system, and examples of frequency conversion speed regulation of various production machinery, which answers various common phenomena in the use of frequency conversion speed regulation system for electrical engineers. Novel form, thorough analysis and strong readability.
"The power supply and distribution project starts with analog electricity, calculates electricity, and understands the process of power system from power generation, transmission to distribution, including the utilization of various energy sources. The book Electrical Engineering explains the foundation of generators and motors. Two books, Power Network and Power System Analysis, are studied together to fully understand the topological structure of power system network and the correlation between power-related parameters. In addition to some high-voltage courses, for today's society, it is best for everyone to dabble in courses such as weak current, communication and embedded programming. "
Guide for design of Weng Shuang 'an power supply and distribution project; Zhong Jinghua's Planning and Design of New Generation Green Data Center: One Foundation+One Advanced
Qin's electrotechnics: circuit analysis foundation+motor drive+analog digital electricity +PLC. It is convenient to supplement the basic knowledge.
Power System Relay Protection: Introduction to Relay Protection
Power system steady-state analysis; Transient analysis of power system: if you want to write this book, you should learn mathematics well first.
Electrical engineering is a discipline that combines theory with practice closely, and there are many things to learn, but the premise must be to lay a good foundation. Most of the books recommended to you here are textbooks for basic electrical courses. The teaching practice in major universities has proved that the theoretical knowledge is systematic and comprehensive.
Basic knowledge of electric power Book III Basic knowledge of electric power
1, left zero right fire.
2. The yellow, green, red and light blue used in the three-phase five-wire system respectively represent the two colors (PE) of U, V, W and N protective grounding wires.
3, transformer in operation, the transformer phase current should not exceed the rated current; The maximum unbalanced current shall not exceed 25% of the rated current. After the transformer is put into operation, it should be overhauled regularly.
4. In the power supply system of the same transformer, protective grounding and protective zero connection should not be mixed.
5. The rated voltage of the secondary coil of the voltage transformer is generally100V. ..
6. The secondary side of voltage transformer should not be short-circuited at work. Because of short circuit, a large short circuit current will be generated, which may burn out the transformer. Therefore, both the primary side and the secondary side of the voltage transformer are equipped with fuses for protection.
7. One end of the secondary side of voltage transformer must be grounded. This is to prevent the primary high voltage from entering the secondary side when the insulation of the primary and secondary coils is broken down, endangering personal and equipment safety.
8. When the current transformer is working, the secondary side is close to short circuit. The rated current of the secondary coil is generally 5A.
9. The secondary side of current transformer shall not be open at work.
10, one end of the secondary side of the current transformer must be grounded to prevent the high voltage on the primary side from entering the secondary side when the primary and secondary coils are insulated and broken down.
1 1. When connecting the current transformer, pay attention to the polarities of its primary and secondary coils. In China, transformers are labeled with decreasing polarity.
12, when installing, be sure to pay attention to the correct and reliable wiring, and the secondary side is not allowed to be connected with fuses or switches. Even if the instrument or other equipment on the secondary side is to be dismantled for some reason, the secondary side must be short-circuited first, and then dismantled.
13, low-voltage switches refer to disconnectors, circuit breakers, fuses, etc. below 1KV.
14, the load controlled by low-voltage power distribution equipment must be clearly divided, and it is forbidden to control more than one brake and use it confusedly.
15. Interlocking devices of low-voltage power distribution devices and self-provided generator equipment shall be reliable. It is forbidden to run self-provided power generation equipment in parallel with the power grid privately.
16. Insulating mats should be laid on the passages for operation and maintenance of low-voltage distribution equipment, and other articles are strictly prohibited to be piled on the passages.
17. When connecting equipment: connect the equipment first, and then connect the power supply.
18. When disassembling the equipment: disassemble the power supply first, and then disassemble the equipment.
19. When connecting the line: connect the neutral line first, then the live line.
20. When disconnecting the line: disconnect the live line first, and then disconnect the zero line.
2 1, low-voltage fuse cannot be used as overload protection of motor.
22. The rated voltage of fuse must be greater than or equal to the working voltage of distribution line.
23. The rated current of fuse must be greater than or equal to the rated current of melt.
24. The breaking capacity of the fuse must be greater than the possible maximum short-circuit current of the distribution line.
The selection of rated melt current must meet the normal working current of the line and the starting current of the motor.
26. For short-circuit protection of electric furnace and lighting load, the rated current of the melt is equal to or slightly greater than the rated current of the load.
27. For a single motor, rated melt current ≥( 1.5-2.5) rated motor current.
28. When the rated current is melted in the power distribution system, the upper and lower levels should be coordinated to achieve the purpose of selective protection. The next level should be less than the previous level.
29, porcelain plug-in fuse should be installed vertically, must use qualified fuse, shall not use other copper wire instead of fuse.
30. The power inlet of the spiral fuse should be connected to the central terminal of the base, and the outlet of the load should be connected to the terminal of the threaded shell.
3 1. When changing the melt, you must first disconnect the electrical equipment to prevent arcing.
Fuses should be installed on each phase line. It is forbidden to install fuses on the neutral line of two-phase three-wire or three-phase four-wire circuits.
33, fuse is mainly used for short circuit protection.
34. When the fuse is used for isolation purposes, it must be installed at the head end of the line.
35, the function of fuse is short circuit protection. Isolate the power supply and maintain safety.
36. The role of the knife switch is to isolate the power supply and maintain safety.
37. The knife switch with plastic cover and porcelain bottom is generally used as the control switch of electric lighting circuit and electric heating circuit, and can also be used as the distribution switch of branch circuit.
38. When the capacity is appropriately reduced, the three-pole rubber cover knife switch can be used to occasionally operate the motor control switch.
39. The incoming power supply of the three-pole rubber knife switch should be on the incoming seat of the static contact end, and the electrical equipment should be connected to the outgoing seat of the fuse below.
40. When the knife switch is closed, the handle should be downward, and when it is opened, the handle should be upward, and it cannot be inverted or paperback.
4 1, three-pole rubber breaker is used for short circuit protection. Isolate the power supply and maintain safety.
42, low voltage load switch shell should be reliable grounding.
43. When the automatic air switch is selected as the main switch, the incoming side of these switches must have obvious disconnection points. The obvious disconnection point can be an isolating switch, a knife switch or a fuse.
44, the main function of fuse is overload or short circuit protection.
45, capacitor parallel compensation is to directly connect the capacitor with the compensated equipment in the same loop, in order to improve the power factor.
46. There are many measures to improve the power factor, among which the most convenient method is to connect compensation capacitors in parallel.
47. The wall switch is off the ground 1.3m, and the wall socket is 0.3m. ..
48, stay switch should be 2-3 meters from the ground.
49. The electric energy meter shall be 1.4- 1.8 meters from the ground.
50, into the door line should be 2.7 meters from the ground.
5 1, roads, primary and secondary trunk roads, tramways, major rivers, weak current lines, special ropeways, etc. , there should be no joint.
52, plastic sheath line is mainly used for indoor Ming with laying, shall not be directly buried in the plaster layer with laying.