AL-E767 – SINGLE AND THREE PHASE INVERTER 1.5KW

Description

AL-E767 SINGLE AND THREE PHASE INVERTER 1.5KW

DETAILED TECHNICAL SPECIFICATIONS

AL-E767 – Single and Three Phase Inverter & Chopper Trainer (1.5 kW)

Product Code: AL-E767A

Product Name: Single & Three Phase Inverter Trainer (1.5 kW)
Category: Power Electronics Laboratory Trainer / Electrical Engineering Trainer

1. General Description

The AL-E767 Single and Three Phase Inverter & Chopper Trainer is a comprehensive laboratory training system designed for practical experimentation on power electronic converters using PWM techniques. The trainer enables students to study the construction, operation, testing, and performance characteristics of single-phase and three-phase MOSFET-based inverters, along with four-quadrant chopper operation. The modular design allows easy troubleshooting and experimentation with industrial-standard power electronic circuits.

2. Scope of Learning

The trainer shall enable students to perform the following experiments:

• Study of Single Phase PWM Inverter.
• Study of Three Phase PWM Inverter.
• Study of PWM generation using Triangular Comparator Method.
• Study of MOSFET switching characteristics.
• Study of PWM frequency variation.
• Study of Duty Cycle variation.
• Study of Single Phase Full Bridge Inverter.
• Study of Three Phase Bridge Inverter.
• Study of Four Quadrant Chopper.
• Observation of output waveforms under various load conditions.
• Harmonic analysis of PWM inverter output.
• Measurement of voltage, current and switching waveforms.
• Performance evaluation with lamp load.
• Fault diagnosis and troubleshooting of inverter circuits.

3. Technical Specifications

4. Functional Modules

The trainer shall consist of the following independent modules:

A. Human Machine Interface (HMI)

• 4.3" Industrial Touch Screen HMI
• System parameter display
• PWM parameter adjustment
• User-friendly graphical interface
• Real-time monitoring

B. Single Phase PWM Inverter Module

• MOSFET Full Bridge configuration
• PWM gate driver circuit
• Isolated gate pulse generation
• Variable duty cycle
• Variable frequency control
• Test points for waveform observation

C. Three Phase PWM Inverter Module

• Three Phase Bridge Inverter
• Six MOSFET switching devices
• 120° gate pulse generation
• PWM modulation
• Three phase output terminals
• Load connection terminals

D. Single Phase Chopper Module

• Four Quadrant Chopper
• PWM control
• MOSFET switching
• Forward and Reverse operation
• Frequency control
• Duty cycle adjustment

E. Power Supply Module

• Single Phase AC Input
• Isolated DC Supply
• Low voltage auxiliary supply
• Protection circuitry
• Indicator lamps

F. Load Module

• Three Nos. 200W Lamp Load
• Load terminals
• Test terminals
• Output measurement points

5. Protection Features

The trainer shall include:

• Single Phase MCB Protection
• Short Circuit Protection
• Fuse Protection
• Emergency Stop Switch
• Reverse Polarity Protection
• RC Snubber Circuit
• Over Current Protection
• Power ON Indication
• Safe Low Voltage Control Circuit
• Industrial Safety Sockets

6. Front Panel Features

• Industrial printed synoptic diagram
• Printed circuit representation
• Clearly identified terminals
• Colour coded safety sockets
• Test points at each functional block
• Banana socket interconnections
• Modular plug-in cards
• Industrial labeling

7. Measurement Facilities

The trainer shall provide test points for measuring:

• PWM Pulse
• Gate Signal
• DC Input Voltage
• AC Output Voltage
• MOSFET Gate Pulse
• Driver Output
• Load Voltage
• Load Current
• Frequency
• Duty Cycle

using a CRO or Digital Storage Oscilloscope.

8. Educational Experiments

The equipment shall facilitate the following experiments:

1. Study of PWM Generation.
2. Single Phase PWM Inverter.
3. Three Phase PWM Inverter.
4. Frequency Variation.
5. Duty Cycle Variation.
6. Output Voltage Control.
7. Harmonic Reduction using PWM.
8. MOSFET Switching Characteristics.
9. Four Quadrant Chopper.
10. Forward Motoring.
11. Reverse Motoring.
12. Regenerative Braking.
13. Dynamic Braking.
14. Lamp Load Characteristics.
15. Gate Driver Circuit Testing.
16. RC Snubber Circuit Analysis.
17. Fault Diagnosis.

9. Construction

• Heavy-duty powder-coated MS cabinet
• Aluminium/Bakelite front panel
• Industrial-grade switches
• Gold-plated safety sockets
• Modular PCB construction
• Easily replaceable power and firing modules
• Industrial wiring harness
• Laboratory-grade finish

10. Standard Accessories

• Power Pack
• Patch Cords (2mm & 4mm, 1 metre)
• 3 × 200W Lamps
• Instruction Manual
• Experiment Manual
• Power Cord
• Test Leads

11. Utilities Required

• 230V AC, 50 Hz Single Phase Supply
• Earthing Connection
• Digital Multimeter
• CRO / Digital Storage Oscilloscope (Recommended)

12. Standard Compliance

The trainer should conform to:

• IEC Safety Standards
• Laboratory Safety Requirements
• Industrial Wiring Practices
• Educational Laboratory Equipment Standards

13. Salient Features

• Industrial modular design
• MOSFET-based 1.5 kW power stage
• 4.3" Touch Screen HMI
• PWM generation using Triangular Comparator Method
• Variable frequency and duty cycle
• Single & Three Phase inverter operation
• Four Quadrant Chopper operation
• Industrial safety features
• Modular replaceable cards
• Clearly marked test points
• Comprehensive laboratory experiments
• Suitable for Diploma, Polytechnic, Engineering Colleges, Universities, and Industrial Training Institutes.

Technical Details