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

More product information please visit http://www.dolangeducation.com/electrical-maintenance-skill-training-series/1225.html

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.

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.

（2）Store 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.

（3）Charging and output control controller

Controller is used to control the whole system stable work safely.

 (4）Other 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.

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).

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/

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/

Process Control Trainer - flow, pressure, liquid level, temperature.

DLGK-373 process control trainer includes the parameters  of flow, pressure, liquid level and temperature. The entire system is divided into: the upper control layer system, experimental object layer, detection sensor, transmitter, perform device, PC control software four parts. System features: the entire system placed on a movable table test bench, test apparatus compact and small footprint.

The process control unit includes skeleton, water storage tank, water tank, water tank, boiler, pressure sensor (transmitter), flow sensor (transmitter), temperature sensor, liquid level sensor, variable frequency magnetic pump, electric control valve, electromagnetic Valves, pressure gauges, hand valves and various pipes, joints and other components. The control system includes the PLC control system and the supporting host computer software.

The process control trainer has many training contents, Single-tank water level mathematical model test experiment, dual tank water level mathematical model test experiment, boiler liner water temperature characteristic test experiments etc.

Technical parameters
 Input power: single-phase three-wire AC 220V ± 10% 50Hz
● Operating power: DC 24V 3A
 Ambient temperature: -10 ℃ ~ 40 ℃
● Ambient humidity: ≤ 90% (25 ℃)
Dimensions (process control unit): 1500 × 800 × 1800mm (length × width × height)
● Machine capacity: ≤ 2.5KVA
● Electrical logic: NPN or PNP
● Occupies PLC I / O points
Digital input points: 2 (DC24V) switch output points: 2 (DC24V)
Analog input points: 4 (current type / voltage type) Analog output points: 1 (current type / voltage type)

Optical Mechatronics Training Equipment

The Optical Mechatronics Training Equipment consists of aluminum alloy rail training platform, the typical mechanical and electrical integration equipment mechanical parts, PLC module, inverter module, button module, power module, simulation production equipment training module, wiring Terminal block and a variety of sensors, computers and other components. The overall structure is open and disassembled, the training device is used for mechanical parts assembly, can be assembled according to the existing mechanical parts production equipment, can also add mechanical parts assembly of other production equipment, so that the entire device can be flexible by teaching or competition Requires assembly of mechanical and electrical integration equipment with production function. The module adopts the standard structure and the drawer module to place the frame, the interchangeability is strong; According to the principle of the production function and the integrated learning function, the module content is determined so that the module can be selected conveniently when teaching or competition. Equipment must be fully in line with the requirements of the Electrical and Electronic National Vocational Skills Competition, but also requires a scalable function, can form a more large-scale production simulation system to meet the various levels of different schools, different professional teaching and training requirements.

Technical Parameters
1. AC power supply: three-phase five-wire AC380V ± 10% / single-phase three-wire AC220V ± 10% 50 Hz
2. Temperature: -10 ~ 40 ℃; Ambient humidity: ≤90% (25 ℃);
3. Dimensions: length × width × height = 1200 × 800 × 1500 mm;
4. Machine power consumption: ≤ 1.5 kW;
5. Safety protection measures: with grounding protection, leakage protection, safety in line with relevant national standards. Highly insulated safety sockets and high-strength safety test leads with insulated sheaths.

Equipment structure:
The Optical Mechatronics Training Equipment platform is aluminum alloy rail type, the training module PLC module I / O terminal, the inverter terminal, the common module and PLC connection terminals are connected with the safety socket, the use of safety plug with the wire Circuit connection; the instruction switch, photoelectric switch, sensor and indicating components of the circuit, through the terminal block to connect. Plug-in connection circuit and terminal card connection circuit combined, both to ensure that the basic skills of students training, formation and consolidation, but also to ensure that the circuit connection fast, safe and reliable.
Aluminum alloy rail training platform: you can install the feeding mechanism, the robot, transmission sorting agencies. The training module and the PLC host can be placed on the pull-out bracket.
Touch screen module: MCG7062
PLC module and inverter module: PLC 40 points or more IO Siemens; inverter: Siemens; module material requirements: high-strength plastic shell, light weight, the panel is aluminum-plastic plate, pattern, text symbols imported ink silk screen.
Power supply module: three-phase power switch (with leakage and short circuit protection) 1, fuse 3, 2 single-phase power outlet, safety socket 5;
Button 1: switch, switch 2, buzzer 1, reset button yellow, green, red 1, self-locking button yellow , Green, red 1, 24V indicator yellow, green, red 2;
(Terminal block) and a secondary wiring area (safety socket); the terminal block and the corresponding safety socket through the conductive elastic connection; wiring row shell edge Folding, with a fixed screw hole, can be fixed at the training table.
Pit type feeding mechanism: 1 piece of material library, 1 material export, photoelectric sensor 2, 2 magnetic switch, single cylinder 1, single solenoid valve 1, warning light 1, the main completion will be The workpiece in the workpiece library is launched in turn. Cylinder and ancillary sensors selected SMC.

Pneumatic manipulator device: four-degree-of-freedom pneumatic manipulator, cylinder and accessory sensor selection SMC; the entire handling mechanism to complete the four degrees of freedom action, arm telescopic, arm rotation, gripper up and down, Cylinder and ancillary sensors selected SMC.
Machining mechanism: Mainly by the material table, material clamping device, gantry two-dimensional movement device, spindle motor, tool and the corresponding sensor, magnetic switch, solenoid valve, stepper motor and drive, spindle motor, ball screw, , Mechanical parts composition.
Object packaging institutions: mainly by the pit for the feeding unit, three rotary table, flat bearings, stamping assembly unit, photoelectric sensor magnetic switch, solenoid valve (Japan SMC), DC gear motor, bracket, mechanical components.
Material sorting device: the conveyor belt through the three-phase asynchronous motor drive at the end of the conveyor belt designed to have a blanking mouth, through the photoelectric sensor to detect the material; conveyor belt with three discharge trough, the corresponding location of the inductive sensor, fiber optic sensors, etc. The tank position is equipped with push cylinder, a total of three cylinders. Conveyor belt with removable aluminum alloy bracket. Cylinder and ancillary sensors selected SMC.
The optional mechatronics training equipment integrates many functions. It includes installation and commissioning of Pneumatic system, Electrical control circuit, PLC program, electromechanical equipment, Automatic control system, PLC Industrial Communication Network, Material storage etc.

Automotive electrical disassembly and maintenance training equipment

Automotive electrical disassembly and maintenance training equipment is based on " automobile electrical equipment installation workers," it is suitable for automobile electrical equipment installation skills training and teaching in vocational schools and training insititutes.

Product Features Description:
1World Skills Competition Standard
2 integrated PLC technology, inverter, stepper drive, temperature control, sensor integrated technology, electrical installation technology, anti-theft, video surveillance, fire linkage, video intercom technology, machine tool intelligent assessment
3 equipment components used in all well - known brands, high stability
4 The equipment is made of steel mesh plate and steel special profile. With the open design, the equipment is equipped with a movable tool cart and component cabinet for each operation group. The training content is up to 100 Above, including electrical installation, modern electrical installation, fire alarm installation, intercom access control installation, closed-circuit television monitoring and anti-theft alarm equipment installation.

Training project
1. Electrical control training
1.1 motor jogging control circuit debugging and maintenance training
1.2 Three-phase asynchronous motor self-locking control circuit training
1.3 button interlocking three-phase asynchronous motor positive and negative control circuit training
1.4 contactor interlocking three-phase asynchronous motor positive and negative control circuit training
1.5 double interlocking three-phase asynchronous motor positive and negative control circuit training
1.6 contactor switch star / triangle start control circuit training
1.7 button to switch star / delta start control circuit training
1.8 time relay switch star / triangle start control circuit training
1.9 stator string resistance step-down start automatic control circuit training
1.10 three-phase asynchronous motor step-down start and reverse brake control circuit training
1.11 Three-phase asynchronous motor sequence control circuit training
1.12 three-phase asynchronous motor multi-control circuit training

2.PLC control electrical training
2.1 Basic instruction programming exercises
2.2 PLC control motor jogging and self-locking control
2.3 PLC control motor manual forward and reverse control
2.4 PLC control motor with delay inversion control
2.5 PLC control motor with limit automatic reciprocating motion control
2.6 PLC control motor to start the two stop control
2.7 PLC control motor sequence control
2.8 PLC control motor series resistance start
2.9 PLC control motor reverse brake
2.10 PLC control motor star / triangle start automatic control
2.11 PLC control motor star / triangle start manual control
3.PLC, inverter, touch screen integrated application
3.1 basic operation of the inverter and parameter settings
3.2 external terminal jog control
3.3 Inverter control motor positive and negative
3.4 multi-speed selection frequency conversion speed
3.5 Multi-speed speed adjustment of frequency converter based on PLC control
3.6 PLC-based inverter control motor positive and negative

Dolang Is a set of production sales professional automotive training equipment manufacturers. We can manufacture automotive training tools according the technical parameter that you offer. For more automobile training equipment information please visit http://www.dolangeducation.com/automotive-training-series/

Power Electronic Trainer

The power electronic trainer is based on the teaching requirments of power electronic technology. It absorbs the advantages of national similar products, fully consider situation and development of power electronic technology. This equipment covers “the power electronic technology” “semiconductor converter technology “and other professional courses required experimental project in the higher institutions.

Technical parameter
1. The input power: three-phase four-wire (or three-phase five wire 380V±10％
50Hz)
2. The work environment: temperature-10  ~ + 40  relative humidity < 85%  ℃ ℃
(25  ) height <4000 m ℃
3. The device capacity: < 1.0 kVA
4. Overall size: 155 cm x 79.5 cm x 147 cm

Components
Power control panel，Bench，Three phase controlled rectification
circuit，The thyristor trigger circuit，Power device driver and protection
circuit，Single-phase AC/DC/AC frequency conversion，switching
stabilized voltage power supply，DC chopper experiment  ，The experiment components ，Experiment lunk etc.

With our electrical training equipment students can learn digital electronic technology, analog electronic technology, digital communication principle etc. And students complete AC and DC, oscillation, magnetic circuit, operational amplifiers, rectifier circuit, AC-DC amplifier circuit, digital logic circuit and other experimental projects. We manufacture a wide range of electronic trainer , you can offer us technical specification, then we produce it according your parameter.

Renewable Energy Trainer Solar photovoltaic power generation training system

With the energy crisis is approaching, new energy has become the world's major energy sources. Which solar energy has gradually entered our unusual life. Solar energy laboratory is a solar energy research laboratory, which is equipped with the corresponding Solar photovoltaic power generation training system, can be used as solar energy light, heat, electricity demonstration demonstration, as a base to carry out the scientific research and development of solar energy utilization Work. Solar photovoltaic power generation trainer is the use of solar power generation principle, combined with the characteristics of teaching, research and development of the latest renewable energy teaching equipment, solar engery trainer is widely used in vocational high schools, universities, graduate students, enterprise training to solar off-grid power generation and Solar power and grid-based research and teaching training. It helps students a deep understanding of the principles of solar photovoltaic power generation teaching.

Solar photovoltaic power generation training system is one of renewable energy trainer , it uses tandem PWM charging control, so that the charging circuit voltage loss than the original diode charging method to reduce the half, charging efficiency is higher than non-PWM 3-6%; over discharge recovery of the charge, the normal Direct charge, float automatic control is conducive to improving battery life. A variety of protection features, including battery reverse, battery over, undervoltage protection, solar module short circuit protection, with automatic output overcurrent protection, output short circuit protection.

The main technical indicators and specifications:
Solar cell specific parameters are as follows:
Peak power: 30W
Maximum power voltage: 17.5V
Maximum power current: 1.95A
Open circuit voltage: 22V
Short-circuit current: 2.2A
Installation size: 622 * 550 * 18mm

Solar controller specific functions are as follows
◆ use of microcontrollers and special software, intelligent control, automatic identification of 24V system.
◆ Adopt tandem PWM charge control mode, so that the charging circuit voltage loss than the original diode charge way to reduce the half of the charge efficiency of 3-6% higher than the non-PWM; over discharge recovery to enhance the charge, the normal direct charge, float automatic control Way to help improve the battery life.
◆ A variety of protection functions, including battery reverse, battery over, undervoltage protection, solar module short circuit protection, with automatic output overcurrent protection, output short circuit protection.
◆ has a wealth of work patterns, such as light control, light control + delay, general control mode.
◆ Float charging temperature compensation function.
◆ The use of custom large-screen LCD liquid crystal display, charging, discharging, photovoltaic, battery, load the parameters at a glance, one-button operation to complete all settings, easy and intuitive.
◆ Excellent communication function Equipped with an independent PC software to ensure good communication between the PC, the screen user-friendly, clear, intuitive, easy to operate. And PC connected to the controller parameters and function control more flexible and fully meet the needs of different teaching applications.
3. Battery: Generally lead-acid batteries, with the following characteristics:
◆ Self-discharge rate is low
◆ long service life
◆ deep discharge capacity
◆ High charging efficiency Wide operating temperature range
◆ increase the system stops automatically when the battery power measurement
4. off-grid inverter: sine wave inverter, the specific function parameters are as follows:
◆ pure sine wave output (distortion rate <4%)
◆ input and output completely isolated design
◆ can quickly parallel start capacitor, inductive load
◆ three-color indicator shows the input voltage, output voltage, load level and fault conditions
◆ Load control fan cooling
◆ Overvoltage / undervoltage / short circuit / overload / overtemperature protection
5. load:
◆ DC load include: LED lights, fans, etc .;
◆ AC loads include: energy-saving lamps and AC motors.

6. Grid-connected inverter:
Grid-connected inverter with DC-DC and DC-AC two-level energy conversion structure. DC-DC converter link adjusts the operating point of PV array to track the maximum power point. The DC-AC inverter mainly makes the output current in phase with the grid voltage, and obtains the unit power factor.
The system panel is equipped with a number of test ports for measuring DC and AC related parameters. It can measure the DC-DC voltage and current changes and the voltage and current during DC-AC inversion process and the curve changes and waveform contrast.
7 power search function
In the process of automatic adjustment, will see the LOW lights flashing non-stop, the power from 0 as a starting point, the maximum power point to increase the output power, restart up to 6 times, and then enter the power lock state, bright.
The time required to perform a power search procedure of six levels is 10 minutes.
Wide voltage input (15-62VDC)
Secondary power transformer conversion
◆ high-frequency two-way grid, one-way and network functions
◆ High frequency direct modulation, AC half wave synthesis
◆ Bidirectional grid connection: direct load consumption, reverse transmission AC current
◆ One-way grid connection: direct load consumption, prohibit reverse transmission AC current
Multi-frequency output function, can be applied to 50Hz / 60Hz frequency AC AC
◆ Frequency range: 45Hz ~ 63Hz
◆ directly connected to the solar panel (no need to connect the battery)
8. Monitoring instruments:
When the completion of the data read, can monitor the solar cell voltage and current; grid-connected inverter output voltage and current; off-grid inverter output voltage and current.

We also manufacture Wind Power Generation Training System, Wind Solar Hybrid Training System lab equipment, Fuel Cell Teaching Experiment Platform, Solar Photovoltaic Power Generation Hybrid Training System, Solar Photovoltaic Power Generation Hybrid Training System, Portable Solar Power Experiment Box, Power Battery Management System Test Bench, Wind-Photovoltaic Hybrid Training System, hotovoltaic Power Supply Generator Training System etc. If you need Renewable Energy Trainer,  just feel free to contact us, we always  wait for your visit! This is our official website http://www.dolangeducation.com/new-energy-training-series/

Hydraulic trainer educational training equipment

The hydraulic trainer is made of transparent organic material, so stdudents can understand and grasp the structure of dozens of commonly used hydraulic components, and circuit and principle.  Experiment, the assembly of experimental circuit fast and convenient. At the same time, with a separate relay control unit for electrical control, simple and practical.

Training content of the Transparent hydraulic Trainer
second stage pressure regulating circuit, buffering circuit by relife valve, circuit available to provide various pressure, compensated flow control valve speed control circuit, handle shuttle valve control double-action cylinder round trip, hydraulic pressure reducing circuit , locking circuit of pilot operated check valve, throttle governing circuit (inlet circuit, outlet circuit, passby circuit), two cylinders sequence action circuit by pressure switch, two cylinders sequence action circuit controlled by PLC, two cylinders sequence action circuit by stroke valve, to control the hydraulic cylinder automatically round trip with stroke valve(PLC) etc.

If you need industrial hydraulic trainer or hydraulic power unit trainer for vocational education, please feel free to contact us, we can manufacture hydraulic training equipment according to specification which you offer.  More product information please visit http://www.dolangeducation.com/hydraulics-training-series/

PLC trainer Siemens, allen Bradley, Mitsubishi, OMRON

Our PLC trainer includes programmable logic controller, programming software, simulation training teaching software, training modules,electrical training mesh panels, electrical components module. In this device, you can intuitively carry out the basic instruction of PLC training, the actual application of multiple PLC simulation and physical control training.
PLC host input and output are led to the panel. Input can be connected to analog input switch, trip switch or photoelectric switch. The output can be connected to the indicator lights on the panel, digital tube and relay, DC motor and buzzer, can also be connected with the demonstration device can be applied to the actual industrial control.
1) PLC host general use of Japan's original Mitsubishi, Siemens, allen Bradley and OMRON. It can also be equipped with other models of the host according to user’s requirements.
2) The PLC trainer bench has a 24V2A power supply. It can be used directly for output loading or interfacing with a presentation device or with other counterpart devices.
3) The connection between the PLC workbench and the demonstration device can be self-locking connector, single point-by-point connection, in order to improve hands-on brain ability, deepen understanding of the structure and function of PLC.
4) Besides Siemens, allen Bradley, OMRON,  Mitsubishi PLC trainer , We manufacture also Elevator Training Equipment, capacity Tank Trainer, Liquid Mix Trainer, Traffic Light Trainer Temperature and Pressure Trainer, all these training equipment are based on PLC controlled.
Since we have professional research and development staff who focus on PLC trainer, we can manufacture product according your requirements and specifications. More information please visit http://www.dolangeducation.com/plc-training-series/