DYWXC-85 Primary Maintenance Electric Training Device

1. Overview The
primary m*ntenance electrician tr*ning platform adopts an internationally commonly used modular design, and configures corresponding tr*ning modules according to different tr*ning and assessment contents. The tr*ning is convenient, reasonably l*d out, and easy to expand and upgrade. The tr*ning content covers electrical instrumentation, electrician Wiring technology, electronic circuits, electrical lighting and distribution, electric drag, electric shock first *d, safety fire protection , etc., meet the requirements of the national professional standard teaching, tr*ning and examination for junior electricians, and are suitable for various vocational schools, technical schools, technical secondary schools, and labor tr*ning and teaching tr*ning, practical tr*ning assessment, and skill appr*sal by skill appr*sal institutions and other units.
2. Technical performance
1. Input voltage: three-phase four-wire system 380V±10% 50Hz
2. Working environment: ambient temperature range is -5～+40℃
3. Device capacity: <1KVA
4. Safety protection: leakage action current ≤30mA Overcurrent protection, fuse protection
5. Overall dimensions: 1600mm×700mm×1450mm
3. Basic configuration and functions of the tr*ning device
The primary m*ntenance electrician tr*ning platform m*nly consists of tr*ning screens, tr*ning hanging boxes, tr*ning equipment, and Table and other components.
(1) Tr*ning screen
    The primary m*ntenance electrician tr*ning platform tr*ning screen is composed of a high-quality aluminum profile frame and a m*n chassis, aluminum alloy panel, and the m*n chassis provides AC power, DC stabilized voltage and current power supply for the tr*ning hanging box, and safety protection. The specific functions are as follows:
1. The external power input indicator light is on (reminding the operator that the external power supply has been connected to the tr*ning platform ).
2. Push on the three-phase leakage switch, the three-phase power supply supplies power to the tr*ning hanging box, etc., and a 450V AC voltmeter indicates the three-phase output line voltage through the transfer switch.
3. Low-voltage AC power supply: output 6V, 9V, 12V, 24V, 36V low-voltage AC power supply, power 50W.
4. Provide 2~220V sockets to provide working power for external equipment.
5. DC power supply
(1), 1 channel 5V/1A DC regulated output.
(2) DC stabilized voltage and current power supply: The voltage is continuously adjustable from 0-30V, the built-in relay automatically shifts, the multi-turn potentiometer continuously adjusts, the output current is 2A, and it has a preset current-limiting protection function.
6. Four 5408 diodes are used for the rectifier circuit of energy-consuming braking.
7. Three 100Ω/50W resistors are used for motor step-down starting, and one 10Ω/25W resistor is used for energy consumption braking of asynchronous motors.
(2) Practical tr*ning hanging boxes and equipment are equipped with
relay contact control circuits. All components for practical tr*ning are led to the terminal blocks through wires. When students make connections, they only need to wire on the terminals, which is conducive to protecting the components; during practical tr*ning Conduct process wiring tr*ning through wire trough routing.
 1. M*ntenance of electrician’s hanging box (1)
1 blade switch, 1 single-phase watt-hour meter, 3 AC ammeters
2. M*ntenance of electrician’s hanging box (2)
   2 lamp holders, 1 starter, ballast 1, 1 set of fluorescent lamps, 2 86 switch bases
3. M*ntenance electrician hanging box (3)
1 three-phase three-wire watt-hour meter, 5 control buttons
4. M*ntenance electrician hanging box (4)
  3 AC contactors, 2 time relays
5. M*ntenance electrician hanging box (5)
  1 circuit breaker, 2 3P fuse holders, 4 travel switches, 1 thermal relay
6. 2 porous ** circuit tr*ning boards 7.
Resistor, potential A batch of equipment such as resistors, capacitors, diodes, transistors, and thyristors.
8. Three-phase squirrel cage asynchronous motor 180W Y/△ 1 set
9. Safety equipped fire extinguisher 1 set in the whole room (not av*lable when purchasing less than 10 units)
(3) Tr*ning table
The specification of the experimental table of the primary m*ntenance electrician tr*ning platform is 1600 (long ) * 700 (width) * 1500 (height). The m*n structure of the experimental table is made of high-performance surface-oxidized aluminum profiles and one-time aluminum die-cast frame connecting components. The connecting components adopt die-casting molding process (non-welding process) and are machined and Shot blasting, sand blasting, surface electrostatic spraying process, easy and fast installation, users can DIY assembly by themselves. The uprights of the table body are made of industrial aluminum profile molding technology, with surface oxidation treatment. The cross-sectional size is 70×70mm, with grooves on all sides, the width of the groove is about 8mm, and the ends are equipped with plastic plugs. The desktop is made of 25mm E1 grade melamine decorative panel. There is a support frame under the desktop panel with a bearing capacity of not less than 300kg. Equipped with storage cabinets to store component boxes, etc. The bottom of the storage cabinet has 4 high-strength universal brakeable PU casters for easy movement. The overall tr*ning device is simple but not simple, high-end and in line with modern product aesthetics and development trends.
The experimental table has two seats. The center of the experimental table is equipped with a universal porous plug-in board. The m*n body of the porous plug-in board is made of ABS injection molding. The surface is porous and forms a set of interconnected jacks. The interior of the porous plug-in board is Embedded with 84 sets of copper porous one-piece molded inserts. The weak current module in the experiment must be a single module with an independently packaged transparent component box. The component box can be used with porous plug-in boards to freely build combined circuits like building blocks; the component box body is transparent and the internal components are intuitive. , the printed circuit diagram on the box cover is scratch-resistant and wear-resistant, and the symbols are beautiful and clear. The component box body and lid adopt a more scientific clamping structure, which is convenient for m*ntenance, disassembly and assembly. Each table is equipped with a rubber plate to protect the universal bottom plate and desktop (if motors, welding, etc. need to be placed on the table).
The two legs at the back of the experimental table extend upward, and are equipped with two specially-molded aluminum profiles with chute beams to form an electrical experiment hanging box bracket. The bracket is matched with the electrical control experiment hanging box, making it easy to move up and down and shift left and right.
4. Experimental Project
(1) Electric Mop Part
1. Three-phase motor direct start control
2. Three-phase motor inching control
3. Three-phase motor self-locking operation control
4. Inching and continuous operation control with ammeter
5. Two-place control with electric energy meter

6. One-way operation Reverse braking control
7. Time relay control motor Y/△ step-down starting control
8. Workbench automatic round trip switch control
(2) Indoor lighting power distribution
1. Socket and one switch control one lamp
2. Wiring of fluorescent lamp circuit
3. Connection method of voice-activated switch to control incandescent lamp circuit
4. Direct wiring circuit of single-phase watt-hour meter
5. Installation of distribution board
6. Connection method of controlling one lamp in two places
(3) Comprehensive tr*ning in electronic technology
1. Single-phase Bridge rectifier circuit
2. Series adjustable regulated power supply circuit
3. Integrated DC regulated power supply
4. Single-junction transistor characteristics
5. Single-junction transistor trigger circuit
6. Thyristor controlled rectifier circuit (comprehensive tr*ning)
7. Electronics Doorbell circuit (comprehensive tr*ning)
8. Electronic alarm circuit (comprehensive tr*ning)
9. Light-controlled simple light automatic switch circuit (comprehensive tr*ning)
10. Electronic hypnosis device (comprehensive tr*ning)
(4) Safety first *d Demonstration
(5) Understanding and Mastering Fire Fighting Skills (Teacher Demonstration)
5. Configuration List