There are several types of electrician employment certificates for Dongguan 2016 Chashan Electrician Training

The auxiliary text symbol can also be placed behind the single-letter symbol that represents the category to form a two-letter symbol. In this case, the auxiliary text symbol generally uses the first letter of the English word that represents the function, status, and feature. For example, &; means start, &;B means electromagnetic brake, etc. Some auxiliary text symbols themselves have independent and precise meanings and can also be used alone. For example, &; represents the neutral line of the AC power supply, &; represents DC power, &; represents alternating current, &; represents protective grounding, etc.
Contact

Person: Teacher Li
Consultation phone:
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School name
: Dongguan Guangyou Vocational Training School
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Address: Third Floor, Dongguan Bus Terminal East Station (Guangyou Education)
Guangyou Vocational School is open all year round
,< br/>Study electrician and send electrician exam practice software
Guangyou Education
Training goals
: Starting from scratch, guide students in all aspects, how to connect indoor and outdoor wires, emergency first aid and treatment of electric shock, Electrician field operation and theory, safe operation, on-the-job operation and employment experience practice
Specific electrician training course introduction:
Introduction to junior electrician training course:
Safe operation of electricians
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Basic knowledge of electrical circuits
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Calculation of circuits
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Serial, parallel and application of resistors
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Alternating current and direct current
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Single-phase alternating current, three-phase alternating current
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Transformers, mutual inductors
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Single-phase electricity meters, three-phase electricity meters
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Motor
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The use of electrical instruments
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Multimeter
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Megohmmeter
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Current clamp type Meter
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Ammeter
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Voltmeter
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Applications of low-voltage electrical appliances
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Fuse
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Knife switch
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Circuit breaker
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Contactor
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Thermal relay
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Intermediate relay
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Time relay
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Button
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Practical operation of lighting circuit
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Practical operation of industrial power circuit
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Motor forward rotation control
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Motor interlocking forward and reverse rotation control circuit
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Double interlocking forward and reverse rotation control circuit
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Double interlocking forward and reverse rotation control circuit
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Workbench automatic reciprocating control circuit
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Motor sequential start control circuit
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Motor voltage reduction start 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 Application,
electrical
electrical measurement knowledge, practical operation, etc., advanced training content: digital circuit technology, factory power transformation and distribution technology,
factory electrical control technology,
programmable control Principles and applications of inverters,
Principles and practical technologies of microcontrollers,
Rectifiers and inverters
Principles and application technologies of frequency converters, practical operations, etc.
In the electrical circuit diagram, some In order to clearly indicate the type, color or use of terminals and specific wires, special text symbols are usually used. <>①Special text symbols for special-purpose terminal blocks and wires. In electrical circuit diagrams, some special-purpose terminal blocks, wires, etc. are usually identified with special text symbols. Here is a summary of some commonly used special text symbols for special purposes.