Maintenance of electrical control and instrumentation lighting training and assessment devices

Ø Product Introduction

The "Electrical Control and Instrumentation Lighting Circuit Training and Assessment Device" is a training device developed based on the training circuits listed in the primary and intermediate level electrician skills assessment content issued by the Ministry of Labor and Social Security. Through practical operation of this device, students can quickly master the practical application technology and operational skills of this course. This training device is not only suitable for students to conduct skills training, but also an ideal equipment for primary and intermediate level electrician skills assessment in colleges, universities, technical schools, vocational schools, and labor vocational skills appraisal departments.

1. All electrical control circuit components are mounted on a mounting plate, making operation and replacement convenient and facilitating functional expansion or the development of new training programs. The selected operational content is typical, practical, and scientific.

2. The operating console only requires a three-phase four-wire AC power supply for operation.

3. The control circuits and specially designed small motors used for skills training can simulate various electrical drive systems in a factory, meeting the skills training requirements of maintenance electricians in installation, debugging, fault analysis, and troubleshooting.

4. In relay contact control circuit training, all components are led to the terminals via wires. Students only need to connect wires to the terminals, which helps protect the components. Wiring is done through cable trays during training, providing process wiring training.

5. Contactors and thermal relays, among other electrical components, are all from well-known domestic and international brands, ensuring equipment quality.

6. Equipped with a current-type leakage current protector to ensure operator safety; each power output has monitoring and short-circuit protection functions. In case of misoperation or short circuit caused by incorrect wiring during training, the device can automatically protect against blown fuses and damage to electrical appliances, ensuring smooth training; 7. The connection between the training circuit and the device power supply is through a safety socket and a highly reliable sheathed connector, ensuring safety and speed;

8. The device has a three-phase power output short-circuit soft-cutoff protection function, preventing short circuits that could damage components due to incorrect wiring or misoperation during student training, while also ensuring smooth training and saving training costs.

Ø Technical Specifications

1. Input Voltage: Three-phase four-wire 380V±10% 50Hz

2. Operating Environment: Ambient temperature range -5～+40℃, relative humidity <85% (25℃), altitude <4000m

3. Device Capacity: <1.5KVA

4. Weight: 100Kg

5. Dimensions: 1700×705×1630mm

6. Residual Current Protection Operating Current: ≤30mA

7. Residual Current Protection Operating Time: ≤0.1s

Ø Main Components

(I) DW02 Power Control Panel The control panel is a double-layer matte textured powder-coated iron structure with an aluminum panel.

Main control board features:

1. Three-phase four-wire power input, via leakage current protection and main switch, with start/stop buttons controlling contactor operation, and an emergency stop button;

2.One 450V pointer-type AC voltmeter on the control panel, allowing monitoring of three mains voltages via a band switch;

3.AC low-voltage power supply: One transformer with 220V primary, 26V secondary, and 6.3V AC voltages. The 6.3V is used for signal indicator lights, and the 26V is used for the rectifier circuit in regenerative braking;

4.Four 5408 diodes for the regenerative braking rectifier circuit;

5.Three 75Ω/75W resistors for reduced-voltage starting of the motor, and one 10Ω/25W resistor for regenerative braking of the asynchronous motor.

(II) Training Table

The training table is made of iron with a matte, finely textured powder-coated structure. The tabletop is made of fireproof, waterproof, and wear-resistant high-density board, with a sturdy structure and an attractive appearance. Each side of the table has two drawers (with locks) and a cabinet, which can be used to store hanging items and training materials.

Ø Practical Training Projects

1. Single-phase start/stop control circuit

2. Asynchronous motor jog control circuit

3. Asynchronous motor dual-location control circuit

4. Asynchronous motor interlocked forward/reverse control circuit

5. Double interlocked control circuit

6. Automatic sequence control circuit

7.Manual sequence start

8. Asynchronous motor star/delta control circuit

9. Asynchronous motor energy consumption braking control circuit

10. Push-button interlocked three-phase asynchronous motor forward/reverse control circuit

11. Contactor interlocked three-phase asynchronous motor forward/reverse control circuit

12. Double interlocked three-phase asynchronous motor forward/reverse control circuit

13. Unidirectional reduced voltage start and reverse connection control 14. Asynchronous motor reverse braking control circuit

15. Automatic reciprocating control circuit

16. Forward and reverse jogging and starting control circuit

17. Automatic reciprocating control circuit with jogging

18. Asynchronous motor self-locking control circuit

19. Asynchronous motor single-phase jogging and starting control circuit

20. Three-phase asynchronous motor stator series resistor reduced voltage starting manual control circuit

21. Three-phase asynchronous motor stator series resistor reduced voltage starting automatic control circuit

22. Contactor-controlled dual-speed motor control circuit

23. Time relay-controlled dual-speed motor control circuit

24. C620-1 lathe Control Circuits

25. Electric Hoist Control Circuit

26. Y3150 Gear Hoist Control Circuit

27. Electric Hoist Circuit

28. Socket and one switch controlling one lamp (incandescent lamp, fluorescent lamp + two-pole leakage current switch)

29. Two double-pole switches controlling one lamp (incandescent lamp, fluorescent lamp + two-pole leakage current switch)

30. Three switches controlling one lamp (incandescent lamp, fluorescent lamp + two-pole leakage current switch)

31. Fluorescent lamp circuit wiring

32. Sound-activated switch controlling incandescent lamp circuit wiringq

33. Touch delay switch controlling incandescent lamp circuit wiring

34. Human body induction switch controlling incandescent lamp circuit wiring 35. Direct wiring circuit for a single-phase electricity meter

36. Wiring circuit for a single-phase electricity meter via a current transformer

37. Wiring circuit for a voltmeter and ammeter

38. Wiring circuit for a voltmeter measuring three-phase voltage with a universal changeover switch

39. Wiring circuit for a control circuit using a single current transformer in a single-phase circuit

40. Star wiring circuit for three current transformers

41. Delta wiring circuit for three current transformers

42. Measurement of a three-phase power factor meter

43. Wiring circuit for a three-phase three-wire active energy meter

44. Wiring circuit for a three-phase three-wire active energy meter via a current transformer

45. Wiring circuit for a three-phase four-wire active energy meter