Dongguan 2016 Dalang electrician certificate agency review

For example, its distributed inductance cannot be ignored. To remove the effects of these distributed inductances, the power and ground wires can be widened to reduce the impedance of the power and ground wires. Distribution parameters of connectors The connectors on the circuit board have some distributed inductance. Dual-in-line pin integrated circuit socket has ~ distributed inductance. Distribution parameters of capacitors Actual capacitors are different from ideal capacitors. Due to the influence of packaging, materials, etc., actual capacitors only have the additional characteristics of inductance and resistance. The equivalent series inductance has a wide decoupling frequency band, so it is more suitable to be used as a decoupling capacitor for high-frequency circuits. To sum up, these small distribution parameters are negligible in lower frequency circuits but must be paid attention to in high frequency circuits. Knowledge Point 2 Application of Inductive Components in Electrical and Electronic Technology The self-inductance and mutual inductance phenomena of inductive coils have been widely used in radio technology, electromagnetic measurement technology and sensors. They also have many applications in electrical and electronic circuits, such as Fluorescent lamp ballasts, power transformers, motor coils, generator coils, televisions
Contact
Contact
Mr. Li
Consultation phone number
br/> School Name
Dongguan Guangyou Vocational Training School
Address
Address: Third Floor, Dongguan Bus Terminal East Station (Guangyou Education)
Guangyou Vocational School is open all year round
,
Learn electrician and receive electrician exam practice software
Guangyou Education
Training goals
Start from scratch, guide students in all aspects, how to connect indoor and outdoor wires, and emergency first aid for electric shock and processing, electrician field operation and theory combined, safe operation, on-the-job operation and employment experience practice
Introduction to specific electrician training courses
Introduction to junior electrician training courses
Safe operation of electricians
Basic knowledge of electrical circuits
Calculation of circuits
Serial, parallel and application of resistors
Alternating current, direct current
Single-phase alternating current, three-phase alternating current
Transformers, mutual inductors
Single-phase electricity meter, three-phase electricity meter
Motor
Use of electrical instruments
Multimeter
Megohmmeter
Current clamp meter
Ammeter
Voltmeter
Application of low voltage electrical appliances
Fuse
Knife switch
Circuit breaker
Contactor
Thermal relay
Intermediate relay
Time relay
Button
Practical operation of lighting circuit
Practical operation of industrial power circuit
Motor forward control
Motor interlocking forward and reverse control circuit
Double interlocked forward and reverse control circuit
Workbench automatic reciprocating control circuit
Motor sequential start control circuit
Motor voltage starting control circuit
Intermediate electrician training course training content electrical control Technology, electrician and electronic basics, maintenance electrician technology, internal and external line electrician technology,
Electrical equipment operation,
Transformer and motor operation and maintenance programmable controller principles and applications,
Electrical
Electrical measurement knowledge, practical operations, etc., advanced training content digital circuit technology, factory power transformation and distribution technology,
Factory electrical control technology,
Principle and application of programmable controller,< br/> Single chip microcomputer principles and practical technologies,
Rectification and inverter technology, frequency converter principles and application technologies, practical operations, etc.
Coil and intermediate frequency transformers, and delayers of automated instruments, etc. Inductors have a wide range of applications and are essential in circuits such as tuning, oscillation, matching, coupling, filtering, and trapping. Here are some examples of applications of inductive components in circuits. 1. Application of inductance components in electrical technology. Three-phase motors are widely used in industrial and agricultural production. They are devices that convert electrical energy into mechanical energy and are also devices that provide power sources