DYWKB-09 mesh-type electrician training platform

This set of equipment is required to adopt advanced universal mesh panel embedded design and new ideas for modular tr*ning. Students can assemble corresponding tr*ning circuits by themselves according to the specific requirements of the tr*ning project, and complete the practice of wiring techniques for various circuits. It meets the requirements of experimental demonstration of tr*ning and circuit principles, and meets the needs of "learning by doing, doing while learning" in current vocational education. At the same time, it is also required that the device has novel design, reasonable structure, complete functions, safety and reliability, beautiful appearance, etc., and is easy to expand and upgrade. It also adopts advanced technologies such as frame-type all-steel structure, duckbill-shaped all-steel panel, aluminum plate etching and color spray printing.

(2) Technical parameters:

Input power supply: AC380V 50Hz three-phase five-wire
rated current: 20A  

Rated power: <5KW
Ambient temperature: -5～40℃
Relative humidity: ≤90% (25℃)

Safety protection: leakage protection (action current ≤30mA) overcurrent protection fuse protection

Equipment weight: about 150KG

(3) Product structure:

(1) Desk body part:

It adopts a frame-type all-steel structure and is embedded with 1.5mm thick high-quality cold-rolled steel plates that are sheared and folded by large-scale machinery . The metal surface is sprayed with epoxy resin high-voltage electrostatic color powder after chemical anti-embroidery treatment such as pickling and phosphating. , to ensure that the steel frame will not rust or be corroded. All connecting parts are seamlessly welded. After welding, the surface is smooth without traces of welding points. It has good anti-corrosion properties, is tight and strong, and will not deform under long-term load bearing. The table is double-sided and has four work stations. It is equipped with 4 drawers (installed with padlocks). There is a locker on one side to facilitate the placement of 4 mesh panels with electrical appliances installed. Doors are installed on both sides of the locker. Each door Only two of the stencils can be taken. The table brackets and sides of the table are blue, and the drawers and locker doors are milky white. The table is required to be divided into two parts: the tr*ning part and the power part are the upper part, and the desktop, drawers and lockers are the lower part, as shown in Figure 1. Power enters the tr*ning equipment from the lockers. Among them, 6 tr*ning tables have reserved power cord inlets and outlets at the bottom of the locker, the top and both sides of the workbench, and the rem*ning 34 tr*ning tables have reserved power cord inlets and outlets on both sides of the workbench.

(2) Desktop part:

It is made of high-quality cold-rolled steel plate and hydraulically formed into a duckbill shape through a large mold . Beautiful appearance, durable, milky white.

(3) Experimental power supply part:

The panel is processed with high-quality aluminum chemical etching and color processing, and the panel graphics and characters are processed with modern inkjet printing technology to make the panel logo clear and durable, with a milky white color. The experimental power supply part is equipped with four groups of practical tr*ning experimental circuits, two groups on each side. Each group is equipped with a three-phase *r leakage switch (32A, leakage action current 30mA, action time ≤ 0.1S), a three-phase socket (16A), two, One three-hole single-phase socket (10A). Four 100ｗ△ connected motors are installed in the middle. The six leads of the motors are led to the terminal strip on the power panel, and the first and last symbols of the motors are marked. The operating status of the two motors can be observed through the observation window on each side. At the same time, the power panel is required to be fixed in a movable buckle type to facilitate m*ntenance.

(4) Practical tr*ning part:

Each set of equipment is equipped with 6 aluminum alloy universal mesh panels of the same size, which can be freely combined with various practical projects, actively exerting students' independent innovation ability, and is convenient for teachers to operate to cultivate and improve students' hands-on ability. Among them, 4 universal network boards are installed with practical tr*ning electrical appliances, as shown in Figure 2.

The size of the universal stencil is 690*512*2.0mm, the mesh size is 38.5*5.5mm, each stencil must have a handle, and a 12mm thick plywood should be installed behind the stencil.
(5) Virtual simulation system

1. M*ntenance of electricians , electronic motors and vocational qualification tr*ning assessment simulation software

This software is in apk format and can be used on PC or mobile. This software can set faults manually or automatically. This software can manually set fault points through the green box in the circuit diagram (you can set up to 39 fault points), you can also automatically set one random fault point, two random fault points, three random fault points, four random fault points, and five random fault points through the system. It has functions such as toolbox, component library, magnifying glass, circuit diagram, etc. You can choose a multimeter for testing through the toolbox, select appropriate components through the component library, and clearly understand each component and circuit through the magnifying glass. This software allows students to understand the working principle and circuit structure of the motor star-delta start control circuit through the setting of faults in the motor star-delta start control circuit and various investigations.

2. Virtual spectrum analyzer, logic analyzer, oscilloscope, and three-meter simulation software:

This software is in apk format and can be used on PC or mobile terminals. The functions of this software are: resistance measurement, AC voltage measurement (measuring transformer, if the multimeter burns out when measuring the transformer, black smoke will emit prompts and can reset the multimeter), determine the polarity of the transistor, measure the DC voltage (the light turns on when the ammeter is turned on), measure the DC current, and determine the quality of the capacitor. This software can drag the red and black pen tips at will. When the two pen tips are dragged and positioned on the object to be measured, a red circle will be displayed. If the positioning is not accurate, no red circle will be displayed, and when incorrect operations are performed (such as the wrong range selected, If the measured data is wrong, etc.), the meter pointer will be unresponsive, prompting errors and re-measurement, etc. This multimeter can select AC voltage range, DC voltage range, resistance range, current range, resistance adjustment to 0, and can enlarge the display data. Clearly view the measured data size. Students can learn the correct use of multimeters through this software.

3. Microcontroller and plc programmable design and control virtual simulation software:

This software is developed based on unity3d and has built-in experimental steps, experimental instructions, circuit diagrams, component lists, connection lines, power on, circuit diagrams, scene reset, return and other buttons. After the connections and codes are correct, you can start/stop, The forward movement and reverse movement buttons operate the 3D machine tool model to move. In the connected line state, the 3D machine tool model can be enlarged/reduced and translated.

1. Relay control: Read the experiment instructions and enter the experiment. By reading the circuit diagram, select the relays, thermal relays, switches and other components in the component list and drag and drop them into the electrical cabinet. The limiters are placed in the three-dimensional On the machine tool model, you can choose to cover it, and some component names can be renamed. Then click the Connect Line button to connect terminals to terminals. After successfully connecting the machine tool circuit, choose to turn on the power and proceed. If the component or line An error box will pop up if there is a connection error, and the scene can be reset at any time.

2. PLC control: The experiment is the same as relay control, with the addition of PLC control function. After the connection is completed, enter the program writing interface through the PLC coding button, and write two programs, forward and reverse, with a total of 12 ladder diagram symbols. The writing is completed. Finally, select Submit for program verification. After the verification is successful, turn on the power for operation. Error boxes will pop up for component, line connection, and code errors, and the scene can be reset at any time.

3. Single-chip microcomputer control: The experiment is the same as relay control, with the addition of single-chip microcomputer control function. After the connection is completed, enter the programming interface through the C coding button, enter the correct C language code, and after successful submission and verification, turn on the power for operation, components, lines If there are connection or code errors, an error box will pop up, and the scene can be reset at any time.

(4) Experimental projects:

(5) List of tr*ning devices for each electrician tr*ning equipment

Hot-selling product: Hydraulic tr*ning bench