Motor Protection & Power Supply Training System

System Overview

The EDU-DRV300 is a comprehensive electrical training workstation tailored for in-depth study of motor control systems, servo testing, multi-motor configurations, and safety-protected power supply management. Designed for vocational institutes, engineering departments, and technical training centers.

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⚙️ Core Functional Modules

???? Power Supply System

• Three-phase AC Output: L1, L2, L3, N via 4mm safety sockets

• DC Output (adjustable): 0–240V DC, electronically stabilized, 3–10A with current limiting

• Fixed DC Output: 210V DC / 6A

• Motor Protection Switch: Adjustable 6.3–16A

• Undervoltage Trip & Emergency Stop

• Mains Connection: 3× 230/400V, 50Hz via CEE plug (1.8m cable)

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???? Motor Protection Module

• Power circuit breaker

• Electronic overload relay

• Thermistor evaluation unit

• Contactor system for motor switching

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⚙️ Servo Machine Test Stand

• Torque and speed displays

• USB Interface for PC communication

• Analog outputs for external monitoring

• Terminals for motor temperature, DUT measurement

• Control input for synchronization

• Operating mode selector

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???? Three-Phase Induction Motor

• Built-in PT100 thermometer

• 3 thermistors & 3 thermal bimetallic switches

• Voltage: 690/400V, 50Hz

• Speed: 1380 RPM | Power: 0.37 kW | cosφ: 0.76

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???? Workstation Configuration List

# Component Description

1 Workbench Blue aluminum column, fireproof composite desk, aluminum carved panel

2 Power Supply Module 380V meter, voltmeter, 4P breakers, emergency stop, timer, fuses

3 Power Supply Module 2 Adjustable 0–220V AC, 0–200V DC, fixed 220V DC

4 Power Supply Module 3 3-phase voltage measurement, 380V AC, 24V DC outputs

5 Power Supply Module 4 AC220V/50Hz socket outlet

6 Frequency Converter Module Siemens V20, 4 push buttons, potentiometer

7 Measurement Module 3x AC voltmeters, 3x ammeters, power factor meter, freq meter

8 Resistance Module 4 adjustable resistors 0–90Ω / 150W

9 Motor Drag Module 1 Overheat relay, contactors, reverse/star-delta switch

10 Motor Drag Module 2 Time relay, AC contactors, LEDs, control switches

11–18 Motors Capacitor, shaded pole, reluctance, repulsion, 2-speed, 3-phase

19 Instruments Torque sensor display, tension controller (220V), 4 aviation plugs

20 Wiring Full cable set for all experiments

21 Manual Comprehensive user and training guide

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???? Training Content & Experiments

1. Frequency Converter Start/Stop

2. External Terminal Motor Control

3. Forward/Reverse via Reverse Switch

4. Star–Delta Starter Operation

5. Two-Speed Motor Switching

6. Contactor Self-locking Motor Circuit

7. Forward/Reverse Interlocking Circuit

8. Dual Interlock Motor Control

9. Star–Delta Start via Contactor

10. Star–Delta Start via Time Relay

11. Motor Sequence Control

12. Capacitor Motor Start

13. Capacitor Motor Reverse

14. Resistance Motor Reverse

15. Switched Reluctance Motor Speed Control

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✅ Key Benefits

• Modular and student-safe interface

• Real motor behavior under different load/voltage scenarios

• Industry-grade control and measurement tools

• Compatible with PC for data acquisition and logging

• Aligned with real-world motor automation standards