Friday, December 15, 2017

Electrical Training Aids Teaching Equipment Switching and Control Trainer

The Switching and Control Trainer is not only for practical training of vocational school students, but also is an ideal equipment for primary, intermediate maintenance electrician skills assessment.

The power supply part and components part is separated, the power is divided into three parts, the general power supply part, the control power supply part and the measurement display part; Hang part is based on the actual use of hanging different modules; easy to use.

There are totally 5 modules,  each module can be used independently or combines together. The installation location adjust according to the actual situation,easy to operate, easy to replace, expandable features or development new training; training content selection is typical, practical.

The control circuit and small motor can simulate the electric drive system of all kinds of machinery in the factory, and can meet the skill training requirements of maintenance electricians in terms of installation, commissioning, failure analysis and troubleshooting;

All the components are lead to the terminals, students only need to connect the wiring terminals, is conducive to the protection of components;

The Switching and Control Trainer is Electrical Training Aids. The practical operation of the electrical control circuits listed in the textbooks of "Elementary Maintenance Electrotechnical" and "Intermediate Maintenance Electrotechnical" can enable students to exercise their skills well and improve them.  More Electrical Training Aids  information please visit http://www.dolangeducation.com/electrical-maintenance-skill-training-series/1229.html

Specifition of the equipment 
1,Input voltage: three-phase five-wire 380V ± 10% 50HZ
2, Working environment temperature range : -5 ~ 40 ℃
3, Device capacity:AC<1.5KVA
4, Dimensions: L × W × H = 1810x720x1620mm3
5, General power control, with leakage protection, when the leakage current reaches 30mA, the protection device action
6, The grid voltage instructions with 450V AC voltmeter pointer 3 units.




Servo Motor Control Trainer Vocational Training Equipment

DLCG-YL120 AC servo motor training system learn from the german advanced vocational education concept, to work process-oriented, motor control as the carrier, respectively,for AC servo entry, commonly used electrical tools and instrumentation, basic control of motor installation &maintenance and many others basic skills operation learning ,to achieve the students learning of the motor controland comprehensive understanding,can improve the studentspractical ability. Control circuit for skills training and a small motor can simulate all kinds of machinery factory power drag system, and to meet the training requirement of maintenance of electrical installation, commissioning, fault analysis and troubleshooting skills.

Parameter of training platform
Input power: three-phase five-wire AC380V ± 10% 50Hz
  Working environment: -10 ℃ - 45 ℃, relative humidity <90% RH (25 ℃), altitude <4000M
  Device capacity: <1.5KVA
  Output power: three-phase AC380V ± 10% 50Hz, single-phase AC220V ± 10% 50Hz
             DC24V (2 way)
The total power control has a leakage protection function, when the leakage current of 30mA, the protection device action.
The grid voltage indication is equipped with 450V pointer AC voltmeter 3.
  The overall length of the equipment: 2735mm, where:
  Training platform length: length × width × height: 1700 × 700 × 1750mm
  Ball screw small table: length × width × height: 1035 × 430 × 791mm
  PLC (1214C DC / DC / DC) Parameters:
Input power: DC24V
Type: Thyristor output type





Sunday, November 5, 2017

Parking training system educational lab equipment electronic trainer

The Parking training System is a didactic system for the study of parking management inspired by a real industrial parking application. It belongs to educational lab equipment electronic trainer. The system consists of two entry and exit barriers. Parking is an automatic system with sensors and actuators; the command can be provided, depending on the choice of the user, either by a computer or a microcontroller.

Parking is a space or building specifically designed for parking vehicles. It is most often found next to public buildings (station, airport), workplaces, shopping centers or in front of supermarkets to accommodate users.

Technical parameter
Robust steel case;
Height: 284 mm;
width: 550 mm;
Length: 550 mm;
Weight: 8 kg;
Power supply: AC220V ± 10% 50Hz
Power <100W
Motor control voltage: 24v;
Processor voltage: 5v;
Temperature: -10C ~ 60C;
Environmental humidity: ≤90% (25C)
PC connection: USB port


Autonomous mode:
For this mode of operation, the USB cable must not be connected, when starting the model works in a completely autonomous way. A microcontroller makes it possible to raise or lower the barriers as a function of the pressing on the input or output buttons. Students can identify and represent the various stages of the system's operating cycle.

Order by PC:
For this operating mode, you must connect the USB cable. The PC will automatically detect the system, then install the EDUGRAF software if it is not installed on your PC or start it if you have already installed it. You can refer to using the EDUGRAF software to take advantage of the available options and features.



Monday, July 10, 2017

Photovoltaic Power Generation Training system

1. Power system part
(1) Photovoltaic plate
PV plate (solar panels and solar panels, solar PV module), absorb the light energy and transfer the light energy into electrical energy, PV board commonly used materials have monocrystalline silicon, polycrystalline silicon and amorphous silicon, including monocrystalline silicon conversion efficiency is14 ~ 20%, polycrystalline silicon conversion efficiency is about 13%, amorphous silicon is 8 ~ 10%. This renewable energy lab equipment is used for technical colleges which set up Photovoltaic subject project.


2Store electric equipment
At present off-grid type generating system store electric equipment in order to avoid
maintenance cell is given priority to, the battery can stock up power that produced by the PV plate.


3Charging and output control controller
Controller is used to control the whole system stable work safely.
 (4Other mechanical equipment
2. Power generation system main cost structure and influence factors
(1)Photovoltaic plate
At present the solar energy industry spread to open completely, one of the main
reasons is too high Photovoltaic plate prices, influent the system PV plate prices, in addition to control from PV plate unit price, but the most important is to control the use quantity of PV plate, its influence factors are the following:
A、Generated power:In a certain sense, the greater the generation power, the more PV plate usage, the higher the cost is, proper control generating power can properly
control the cost.
B、Photovoltaic plate local weather conditions: Obviously, in the same area, the same piece of PV plate, it generates electricity in sunny day than cloudy day’s, it can explain the different areas have different PV plate usage.
C、PV plate local latitude, in the same day, the sun exposure is different to different
latitude, this will cause the same piece of PV plate on the same day produce different
electric quantity in different latitude.
D、PV plate use environment, for example, PV plate used in the top of the hill, one
day down, do not have any barrier things keep out exposure sunshine in PV board,
power generation capacity must be good, if use PV plate at the foot of the mountain,
the day down, more or less will be screened things keep out exposure sunshine in PV
board, so the surrounding environment that PV plate use whether have barrier things exist, to a certain extent affect the PV power generation capacity.
(2)Energy storage equipment
A power system will supply how much power for the user in one day, and this
determines the energy storage equipment capacity, power generation system supply
users the more power consumption every day, the larger energy storage equipment
capacity requirements is, the higher the cost.
The user’s average power consumption size on every day, every day the greater the
user’s power consumption, energy storage equipment price is higher.
3. Technology feature
Verifier
Verifier effectively improve the whole power system storage capacity, plays an
important support role for the whole system key link, effectively improve the system
stability and efficiency, save the cost of PV plate for a complete system, reduce the
system cost. Verifier have intellectual property protection.
PV plate absorb sunlight technology
PV plate can effectively absorb sunlight, and give greater scope to PV power
generation capacity, greatly improving day generating capacity, reduce the cost of PV plate.
4. Clients should provide material
A class
(1)System output max power
(2)Users’ day power consumption, electricity equipment power and the electric
equipment use duration
(3)User local weather climatic conditions (countries)
(1)Users’ all electric equipment and various electric equipment use duration
(2)User local weather climatic conditions
Description: system general design is power generation of a day in enough sunlight,
don't consider power generation of overcast and rainy day , so the system will only
bear electric equipment use of a day, if customers have other requirements moreover
consider.

Thursday, March 23, 2017

pneumatic trainer for education

Our pneumatic trainer is based on "hydraulic pneumatic technology and training", "pneumatic control technology" and other general design materials, programmable logic controller and industrial pneumatic components, the implementation of modules as a whole, in addition to conventional pneumatic basic control Loop test, but also can be simulated pneumatic control technology application experiments, pneumatic technology curriculum design. PLC control mode, from the simple learning PLC guide programming, ladder programming, in-depth to the PLC control applications, and computer communications, online debugging and other experimental functions, can be a perfect combination of pneumatic technology and electrical PLC control technology for electrical, Mechanical and electrical integration and other professional training assessment.

Main features of pneumatic trainer
1. Modular structural design to build a simple and convenient experiment, the pneumatic components into an independent module, with a convenient installation of the floor, the experiment can be arbitrarily in the general aluminum alloy plate set up a variety of experimental circuit, the operation is simple and quick.
2. Fast and reliable connection joints, easy to remove and save time.
3. The use of standard industrial pneumatic components, reliable performance, safety.

4. Low noise working pump station, providing a quiet experimental environment (noise <60).






Monday, February 27, 2017

Material Sorting Training Equipment for Education

The Material Sorting Training Equipment is developed for the requirements of electromechanical integration teaching. It’s used for education. It covers the teaching contents such as PLC, pneumatic control, motor drive, electromagnet control, position control and sensor detection. It is the miniature device of the actual industrial field production equipment. Based on a variety of sensor detection, to achieve different materials, different color objects sorting. The device is fully open layout, can fully exercise the operator system wiring, mechanical debugging installation, software programming, independent control system, feedback tuning, fault detection and maintenance capabilities. Suitable for automation, electrical automation, electrical engineering and other professional "motion control", "air pressure system", "mechanical and electrical integration technology", "detection and conversion technology" and other courses set up training courses.

Material sorting device consists of six parts: the bottom plate, the training table (profile structure), the pneumatic part, the blanking mechanism, the material conveying mechanism, the chute and the electrical control. The pneumatic part is composed of a solenoid valve and a cylinder, and the material conveying part is composed of a motor and a synchronous belt. Electrical control by the single-phase AC motor and reducer, solenoid valve, cylinder, switching power supply, photoelectric sensors, capacitance sensors, inductive sensors, magnetic sensors and other components. PLC selection Mitsubishi FX1N-40MR 16 relay output 24 input(This system can support various types of PLC programming applications). Through the sensor signal acquisition, PLC programming, the AC motor, solenoid valve, the more complex switch control, set control, timing logic control, to achieve the conveyor belt on the material positioning, identification, classification.

Training project
Pneumatic directional control loop installation
Pneumatic speed control loop installation
Pneumatic sequence control loop installation
Motor positive &negative control circuit connection and control programming
A variety of sensor installation debugging
Automatic detection technology application practice
Pneumatic technology application practice
Control drive technology application practice
Mechanical system installation and debugging training
System maintenance and fault detection practice
More similar electrical engineering lab equipment equipment please visit http://www.dolangeducation.com/mechatronics-training-series-fa-series/





Wednesday, February 22, 2017

dolang vocational training equipment new product

Dolang manufactures a wide range of vocational training equipment, it helps students prepare for their future careers. The following are our new products that were researched and developed by our colleges recently.


New product: AC-DC-AC Frequency converter module
It integrates protection
functions of voltage, current, and temperature, function of LED display, and
function of fan control.
It can output 10-100Hz, 3s soft start.



New product: Full-automatic diagnostic system for genital tract infection
It integrates technology of photo, machine, electricity, and computer software into one to complete the continuous diagnosis of various index.


New product: Full automatic Newcastle Disease(ND) detector
Newcastle disease is one of poultry infectious diseases caused by Newcastle disease virus, which seriously affect the development of the poultry industry.
The current detect method is Hemagglutination inhibition(HI) test.

More vocational training equipment information, please visit our official website http://www.dolangeducation.com/