Overview

This manual transformer training bench is designed for educational institutions to perform hands-on experiments related to single-phase and three-phase transformers. With a power capacity of 0.3 kW, the modular system allows students to explore fundamental transformer principles, including winding resistance, transformation ratios, no-load and short-circuit characteristics, and efficiency calculations.

Each module is securely mounted on a vertical frame and accompanied by a detailed English manual to guide practical experiments.

Experiments Supported

• No-load test

• Short-circuit test

• Measurement of internal resistance

• Measurement of transformation ratio

• Direct efficiency test

• Calculation of conventional efficiency

System Components & Technical Specifications

1. Single-Phase Transformer Module

• Configuration: Column-type transformer with split primary and secondary windings

• Mounting: Aluminum hooked module with PVC labeling and safety terminals

2. Three-Phase Transformer Module

• Configuration: Column-type transformer with split windings for both single and three-phase operations

• Mounting: Hooked module with PVC label and safety terminals

3. Power Supply Module

• Design: Housed in a metallic box with PVC front panel labeling

• Output Types & Ratings:

Protection & Controls:

• General switch with indicator

• Emergency stop button

• Start/stop controls

• Magnetothermic differential protections

• AC/DC output selectors

• Indicator lights for voltage levels

• Input: 3 × 380 V + N, 50/60 Hz

4. Digital Electric Power Measuring Unit

• Housing: Aluminum box with PVC-labeled panel

• Functionality: Measures voltage, current, power, energy, power factor (cosφ), and frequency

5. Resistive Load Module

• Design: Metallic enclosure with PVC-labeled panel

• Configuration: Step-variable load with star, delta, series, and parallel options via switch control

6. Connecting Leads

• Includes: Insulated, safety-certified plugs and leads

7. Two-Level Work Frame

• Design: Metal construction for mounting modules

• Dimensions: 990 mm (W) × 739 mm (H) × 40 mm (D)

• Use: Easily installable on any standard workbench