I. Overview

The electrical installation and maintenance training and assessment device is a universal training platform developed in accordance with the training and appraisal requirements for maintenance electricians and electrical installers in factory electrical installation, indoor electrical installation, etc. It is very suitable for various vocational colleges and technical schools as a public platform for maintenance electricians, electrical installers, and other majors with electrical installation requirements. It is composed of steel mesh panels and special steel profiles, equipped with self-locking casters for easy movement and use. The surface of the device is spray-painted with a stable color. The device is equipped with a dedicated power supply station. The design height of the device allows convenient operation when a person stands on a one-step stepladder, which is safe and enables users to experience the construction site environment. The horizontal and vertical widths are appropriate, which can simulate the steering arrangement of on-site lines. The mesh panel can be easily removed. To facilitate the construction of concealed works, the industrial aluminum profile frame imitates building partitions with pipe 穿 holes, and cable ties are used to fix the conduit. When passing through the mesh panel, wall bushings can be used to lead wires into the surface-mounted junction box. The supporting PVC pipe bender can easily bend the PVC pipe into 90 degrees. Electrical installation can be carried out, such as bridge installation, PVC pipe installation, chandeliers, incandescent lamp holders, fluorescent lamps, switches, sockets, distribution boxes, control boxes, etc. The device also includes AC asynchronous motors, DC motors, stepper motors, temperature controllers, thermocouples, PLC, inverter touch screens, and other control and controlled objects. Each operation group of the system is equipped with a mobile tool cart and a component cabinet, which is convenient for the storage and installation of components. It fundamentally solves the problems of inconvenient use and narrow training scope in school installation training conducted on ordinary walls. It has the characteristics of flexible and convenient assembly. According to the actual teaching conditions of the school, it can be formed into 2-person groups, single-sided, and multi-angle combinations based on 2 basic combination units of 0.8 meters, supplemented by combination units of 0.2 meters and 0.4 meters to form different length combinations to meet different teaching venues. It can provide training and assessment for various post groups with electrical installation requirements such as hydropower installers.

II. Configuration

(1) Device structure size: 2-person group training equipment (single-sided): 2006mm in length × 1003mm in width × 2410mm in height

Other reference dimensions of structures

2-person group training equipment (single-sided): 2006mm in length × 1003mm in width × 2410mm in height

Configuration List

1. Distribution Box Part

1. Lighting Kit

1. Electrical Control Box

1. Motor Module

1. Sensor Module

Line Equipment

1. Tools

Others

Examples of Training Projects

1. Installation of electricity meter box
2. Installation of distribution box
3. Installation of fluorescent lamp
4. Installation of incandescent lamp
5. Installation of ceiling lamp
6. Installation of energy-saving lamp
7. Installation of high-pressure sodium lamp
8. Processing and arrangement of PVC pipe
9. Threading of PVC pipe
10. Installation of switches and sockets
11. Installation of junction box
12. Line distribution design
13. Study and training of construction specifications
14. Study and training of safe construction requirements
15. Two-place control of one lamp
16. Trunking wiring construction training
17. Concealed works construction training
18. Installation of isolating switch
19. Wiring training of distribution lines

Combination and installation training of metal bridge;

Laying training of plastic trunking;

Laying training of metal conduit;

1. Installation of electrical control box
2. Electrical control circuit installation training

Connection of direct start and stop control circuit of three-phase asynchronous motor;

Connection of contactor interlocked forward and reverse control circuit of three-phase AC asynchronous motor;

Connection of button interlocked forward and reverse control circuit of three-phase AC asynchronous motor;

Connection of button and contactor composite interlocked forward and reverse control circuit of three-phase AC asynchronous motor;

Connection of Y-△ (manual switching) starting control circuit of three-phase AC asynchronous motor;

Connection of Y-△ (time relay switching) starting control circuit of three-phase AC asynchronous motor;

Connection of stator winding series resistance starting control circuit;

Connection of dynamic braking control circuit of three-phase AC asynchronous motor;

Connection of reverse connection braking control circuit of three-phase AC asynchronous motor;

Connection of sequence control circuit of multiple motors (3 or less);

Connection of motor’s round-trip travel control circuit;

Forward and reverse control of DC motor;

Speed regulation experiment of DC motor;

Connection of common lathe control circuit;

Connection of electric hoist control circuit;

Connection of control circuit for three-phase AC asynchronous motor to realize both inching and continuous rotation;

Connection of two-place control circuit;

Connection of double-speed motor speed regulation control circuit with button switching;

Connection of double-speed motor speed regulation control circuit with time relay switching;

Connection of reverse connection braking control circuit with centrifugal switch;

1. Inverter panel function parameter setting and operation training;
2. Inverter’s inching control, start-stop control of motor;
3. Multi-stage control of motor speed;
4. Power frequency and frequency conversion switching control;
5. Motor open-loop speed regulation based on analog control;
6. Motor open-loop speed regulation based on panel operation;
7. Inverter protection and alarm function training;
8. PLC-based inverter open-loop speed regulation;
9. PLC-controlled motor sequence starting;
10. PLC-controlled three-phase asynchronous motor Y-△ starting circuit;
11. Parameter setting of touch screen;
12. Programming of touch screen;
13. Comprehensive training of touch screen, PLC and inverter;
14. Control of two-phase hybrid stepper motor;
15. Wireless assessment intelligent training of CA6140 lathe circuit
16. Wireless assessment intelligent training of M7120 grinder circuit
17. Wireless assessment intelligent training of X62W universal milling machine
18. Wireless assessment intelligent training of T68 boring machine circuit

IV. Technical Parameters

Working power supply: Three-phase five-wire power supply  AC 380 V/220 V ±7.5%  50 Hz;

Working environment: Using insulating floor (or using insulating carpet);

Size of main mesh panel of training device: Length (mm) × width (mm) = 798 × 768

Overall dimensions of training device: See configuration list

Material of training device: Steel plate. Thickness of steel plate

Maximum power consumption  ≤1.5KW

Safety protection measures: With grounding protection, overcurrent, overload, leakage protection functions, in line with relevant national standards.