Description
YL-103/104 was the product developed and manufactured inaccordance with the requirement of “Reviving the reform of vocational educationprogram and the planning of teaching material construction in 21stCentury” promoted by the Ministry of Education, in line with the skillsrequirement of combining actual production and occupation post, and inconformity to the teaching and training requirement of the vocational schools.This training examination device is suitable for the teaching and training ofoccupational skills in majors like mechanical and electrical equipmentinstallation and repair, mechanical and electrical technology application,electrical operation and control, electrical technology application andelectronic equipment operation and repair, and in non-electrical majors like Electrotechnics, Basic Electrical Skills, ElectricalMeasurement and Instrumentation, ElectricalMachine and Control, Motor ControlCircuit, Electric Drive ControlCircuit and other relatingspecialization modules provided by higher vocational schools and secondaryvocational schools.
Technical specification
1. Workingpower: three-phase four-wire AC 380 V/220 V 50 Hz;
2. Dimension:800×600×1700mm (L*W*H);
3. Loadingcapacity: ≤1kVA;
4. Safetyprotection:
1) Electric leakage protection action current: ≤30Ma;
2) Electric leakage protection action response time: ≤0.1S;
3) With over-voltage, over-current, overload, electric leakage protection, conform to national standard;
Function
l Aims of ability cultivation
1. Masterthe basic operating method of installation and repair of the indoor lightingcircuit;
2. Masterthe basic skills of installing the indoor power distribution device and theenergy metering circuit;
3. Masterthe wiring process of the control cabinet. Be able to connect and wire theelectrical control circuit according to the motor control schematic and wiringdiagram. Be able to test the control cabinet;
l Contents and requirementsof training
A. Use of single-phasekilowatt hour meter
1. Understand the principlesof single-phase and three-phase kilowatt hour meters and the power measurementmethods of single-phase and three-phase A.C. circuits;
2. Master the connection andwiring of single-phase and three-phase kilowatt hour meters.
B. Installation of IndoorLighting Circuits
1. Understand the technicalrequirements and wiring process of indoor low-voltage distribution lines;Master the knowledge of classification, selection and installation of lightingappliances; Understand the operating principles and installation methods ofConnect to Ground and Connect to Neutral;
2. Install the plug sockets,chandeliers, bracket lamps, ceiling lamps and fluorescent lights of atwo-bedroom-with-one-living-room house with the following three wiring methods:conduit wiring, raceway wiring and plastic sheathed line wiring;
3. Be able to conduct qualityinspection and power-on of the newly installed circuits. Master the commonfault analysis methods and techniques of electrical lighting circuits.
C. Installation of IndoorDistribution Equipments
1. Understand the compositionof distribution circuits with more than two shun circuits;
2. Master the installation ofdistribution equipments with more than two shunt circuits.
D. Connection of BasicControl Circuits of the Electric Motors
1. Understand the type,structure, functions and main parameters of low-voltage appliances; Be familiarwith the selection of elements in control circuits of electric motors;
2. Understand the principlesof the basic control circuits of electric motors. Learn to conduct connectionand wiring of control circuits according to the schematic diagrams;
3. Master the techniques ofconnection and wiring process of the control circuits in electric motors. Beable to test the correctness of the circuits;
4. Be able to troubleshootsimple problems of the control circuits in electric motors.
E. Installation of ControlCabinet Circuits
1. Understand the relatingknowledge of electrical drawing and electrical schematic reading;
2. Be able to installcomponents, understand connection diagrams (shown by multiple methods) andaccordingly conduct the wiring process;
3. Make initial grasp of thewiring process and techniques of flexible cords;
4. Master the testing methodsof control cabinet and be able to troubleshoot.
YL-103/104, in the actual production, is anelectrical control cabinet within which various kinds of low-voltage apparatusneeded in manufacturing electrical control circuits of machines and equipmentsare installed. And through the electrical control cabinet, we can know manylow-voltage apparatus.
Configuration
We use of-standarddistribution cabinet as main cabinet, make proper use of its double-sided spaceand scientifically arrange appliances and matching laboratory equipments inYL-103 Instrumentation and Lighting Circuits and YL-104 Single-Phase andThree-Phase Motor Control Training Examination Device. On the face-plate, thereare ammeter, voltmeter and operating bottom; inside, there are various kinds oflow-voltage apparatus needed for completing lighting circuits and motor controlcircuits such as residual current circuit-breaker, fuse wire, currenttransformer, contactor, intermediate relay, thermal relay, open and off travelswitches, indicator light, transfer switch, voltmeter, ammeter and electric meter.In order to lengthen the operation life of these apparatus, the junction pointof each apparatus is firstly connected with connecting terminal and thenoperated on the terminal. By this, the devices can be durable and can meet theneed of the lighting and motor control circuits training programs.
We design thedevice according to the motor control cabinet on production site, provideelements according to the control lines frequently-used in actual production,select and use elements the same with those actually used in our production andlife, and simulate the real production situation. Thus, the training processconforms to that of actual production and work; the students can getcomprehensive skills training, have a good command of expertise and skills andhave great training effect of forming their occupational skills.
It is equipped withleakage protection, over-current protection and circuit protection so as toensure personal safety and the safety of using this equipment. It is proved bythe evaluating center from multiple use practices that our device is an idealone for occupational education training.
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