DYDG-WS Maintenance Electric Comprehensive Experimental Platform

The equipment consists of an assessment platform made of steel plates, mesh plate equipment and power supply devices. According to the needs of teaching and practical tr*ning, different components, devices and components can be selected to carry out practical tr*ning in different course modules and different projects. After use, components, devices and parts are removed from the equipment and stored in a centralized manner to avoid damage and loss. The equipment is equipped with leakage protection, overload and circuit protection to ensure personal safety and safe use of equipment.

2. Equipment technical indicators

1. Appearance: overall size 1200mm×850mm×1000mm (±10mm);

2. Equipment materials: sheet metal, wooden cabinet structure;

3.Power supply:

1) Input: three-phase AC 380V ±10% 50HZ three-phase five-wire;

2) Fixed AC output: three-phase five-wire 380V plug-in type 1 group, 220V plug-in type 1 group, 220V socket type 1 group, 380V socket type 1 group

4. Protection: The fuse has short circuit protection, the circuit breaker has overload protection, the leakage switch has leakage protection function, the leakage protection action current is ≤30mA, with power indicator.

3. Equipment structure and function

The equipment consists of three parts: tr*ning screen (built-in power supply), tr*ning table (including keyboard), and lockers. The steel surface is treated with high-temperature spray plastic, which is beautiful and elegant and effectively plays the role of anti-rust insulation; the layout of the power box is the power protection device, power indication device, and power output in order;

There is an embedded assessment platform with adjustable angle installed on the left side of the tr*ning table. All components are led out through terminals. Students only need to wire on the terminals, which can effectively protect the components. The transfer terminals are plugged in. Dual-purpose terminal strip facilitates connection to components and tr*ning power supply screen. A mesh plate is installed on the right side with adjustable angle for embedded installation. At least 4 guide wheels are installed at the bottom of the experimental table to facilitate equipment movement; storage The cabinet adopts standard structure and drawer type, which is used to store tools and tr*ning materials. The computer is installed above the power screen through an adjustable computer stand.

Teacher teaching design system: This system is in apk format and can be used on PC or mobile. This system can manually set faults or automatically set faults. This system can manually set faults by selecting the green box in the circuit diagram. points (up to 39 fault points can be set), or the system can automatically set one random fault point, two random fault points, three random fault points, four fault points randomly, and five fault points randomly. Settings, this system has toolbox, component library, magnifying glass, circuit diagram and other functions. You can select 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 system 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.

Three-purpose meter simulation software: This software is in apk format and can be used on PC or mobile terminals. The functions of this software are: measurement of resistance, measurement of AC voltage (measuring transformer, if the transformer is burned out, it is useful for measuring When the meter is running, black smoke will appear and you can reset the multimeter), determine the polarity of the transistor, measure the DC voltage (the light will turn on when the ammeter is turned on), measure the DC current, and judge 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. Virtual multimeter parameters: AC voltage range points: 10, 50, 250, 1000; DC voltage range points: 0.25, 1, 2.5, 10, 50, 250, 1000; Ohm range points: x1, x10,,100 ,,1000,,1K,x10K,x100K; Ammeter range: 50μa, 0.5, 5, 50, 500; BATT: 1.2-3.6V, RL=12Ω; BUZZ: R×3; Infrared emission detection function: vertical angle ± 15° distance 1-30cm; triode measuring hole.

4. Examples of typical tr*ning projects that can be completed by the equipment

1. Practical tr*ning on connection of motor inching and continuous rotation circuits;

2. Practical tr*ning on connecting the forward and reverse circuits of the button interlocking motor;

3. Practical tr*ning on connecting the forward and reverse circuits of motors with contactor interlocking;

4. Practical tr*ning on connecting the forward and reverse circuits of motors with double interlocking of contactors and buttons;

5. Installation of motor control circuits controlled in two places;

6. Practical tr*ning on connection of motor stator winding series resistor starting control circuit;

7. Connection tr*ning of Y-△ start control circuit for button switching;

8. Motor half-wave rectification energy consumption braking control circuit connection tr*ning;

9. Motor full-wave rectification energy consumption braking control circuit connection tr*ning;

10. Motor reverse braking control circuit connection tr*ning;

11. Motor sequence starting control circuit connection tr*ning;

12. Motor timing operation control circuit connection tr*ning;

13.  Three-phase asynchronous motor forward and reverse control controlled by plc

14. PLC controlled three-phase asynchronous motor Y-△ start control

15. Three-phase asynchronous motor step-down starting control controlled by PLC

16. Energy consumption braking control of three-phase asynchronous motor controlled by PLC

17. Frequency converter function parameter setting and operation

18. Frequency converter alarm and protection functions

19. Multi-stage speed selection and frequency conversion speed regulation

20. External terminal jog control

21. Control motor forward and reverse motion control

22. Control motor running time operation

23. Instantaneous power outage inverter parameter setting

24. External voltage frequency conversion speed regulation

25. External current frequency conversion speed regulation

26. Frequency conversion open-loop speed regulation of three-phase asynchronous motor

27. PLC controls frequency converter speed regulation

5. Equipment configuration

 Hot-selling product: Electrician tr*ning bench