Yalong YL-158 Maintenance electrical trainer is designed and developed according to requirements on “The 21st Century Vocational Education Courses Reform And Teaching Materials Construction and Planning” by the Ministry of Education, combined with the requirements on the actual production experiences and vocational skills. The trainer is suitable for the teaching of electromechanical equipment installation and maintenance, electromechanical technology application, electrical operation and control, electrical technology application and electronic appliances in higher education vocational schools, secondary vocational schools, as well as for the cources such as vocational teaching and training of “Electrical Technology”, “Basic Electrical Skills”, “Electrical Measurement And Instruments”, “Motor And Electrical Control”, “Motor Control Circuit”, “Electrical Traction Control Circuit” and so on.
1. Functions
Projects:
1) 1-phase wattmeter connection;
2) direct 3-phase active wattmeter connection;
3) indirect 3-phase active wattmeter connection;
4) current mutual inductor and ammeter complete Y connection;
5) current mutual inductor and ammeter incomplete Y connection;
6) switch and voltmeter connection 3-phase voltage measurement.
7) power factors measurement;
8) 1-wattmeter 3-phase load measurement;
9) 2-wattmeter 3-phase load measurement;
10) ammeter and current mutual inductor Y circuit;
11) ammeter and current mutual inductor V circuit;
12) AC asynchronous motor jog control circuit connection;
13) AC asynchronous motor forward continuous rotation control circuit connection;
14) 3-phase asynchronous motor direct start, stop control circuit connection;
15) contactor lock 3-phase AC asynchronous motor forward, back control circuit connection;
16) button lock 3-phase AC asynchronous motor forward, back control circuit connection;
17) button, contactor lock 3-phase AC asynchronous motor forward, back control circuit connection;
18) universal switch control 3-phase asynchronous motor forward back;
19) 3-phase AC asynchronous motor Y-△(manual switching)start control circuit connection;
20) 3-phase AC asynchronous motor Y-△(time relay switching)start control circuit connection;
21) stator winding serial resistor start control circuit connection;
22) 3-phase AC asynchronous motor power consumption braking control circuit connection;
23) 3-phase AC asynchronous motor reversed braking control circuit connection;
24) multiply (below 3 units) motors sequence control circuit connection
25) motor forward-back travel control circuit connection;
26) DC motor forward back control ;
27) DC motor speed regulation experiment;
28) excited DC motor mechanical performance testing
29) common lathe control circuit connection;
30) electric pulley-block control circuit connection;
31) 3-phase AC asynchronous motor jog, continuous rotation control circuit connection;
32) remote control circuit connection;
33) button switching dual-speed motor speed regulation control circuit connection;
34) time relay switching dual-speed motor speed regulation control circuit connection;
35) switch reversed braking control circuit connection;
36) frequency converter panel functions parameters setting and operation training;
37) frequency converter motor jog control, start and stop control ;
38) motor rotation speed multi-stage control ;
39) industrial frequency and variable frequency switching control ;
40) analogy control motor open-loop speed regulation;
41) panel operation motor open-loop speed regulation;
42) frequency converter protection and alarming function training;
43) PLC frequency converter open-loop speed regulation;
44) PLC traffic light control training;
45) PLC control motor sequence start;
46) PLC control 3-phase asynchronous motor Y-△ start circuit;
47) touch screen parameters setting;
48) touch screen programming;
49) touch screen ,PLC,frequency converter training;
50) 2-phase hybrid stepper motor control ;
51) 2-phase hybrid stepper motor torque measurement training;
52) AC servo motor control ;
53) AC servo motor torque measurement training;
54) 3-phase Thyristor bridge rectification circuit ;
55) 3-phase Thyristor KC785 IC trigger circuit ;
56) current regulator, speed regulator and overcurrent protection circuit ;
2. The structure and configuration
1, The structure
As the maintenance electrical training is involved with many majors and industries, technologies, now the maintenance electrical trainers are mainly in composition of various combination, (such as: electrical and electronic trainers, machine electrical trainers, PLC trainers and so on), which need a lot cost, a large space.
Yalong YL-158 Maintenance Electrical Trainer is in a reasonable layout, and it is developed to save space, with a reasonable layout, compact structure, full functions and high efficiency.
The trainer, is composed of frame, window, instrument operation panel, electrical system, motor, the electrical system is composed of touch screen part, PLC part, frequency converter part, 514C part, DC power supply part, electric traction and relay control part, motor power, torquer, rotation speed measurement part, AC & DC voltage, current, 1-phase & 3-phase AC power, AC power, power factors measurement part and so on.
The panel is installed with buttons, motor control circuit, various low-voltage electrical appliances, such as leak breakers, fuses, current mutual inductor, contactors, inter-relay, thermal relay, travel switches, switches, voltmeter, ammeter and wattmeter, to prolong the service life of the electrical appliances, with endurable ends to connect all electrical appliances to ensure long service life of all electrical appliances.
It is designed according to the real actual electrical control cabinet, the components are used as same as in the real industrial production control circuits, the training is done as same as the actual production process, in order improve th students’ vocational skills and quality fully and efficiently.
With leak protection, overload and circuit protection, to ensure human safety. After verification by actual experiences, it is proved to be an ideal vocational education training equipment.