Transformer Trainer Manufacturer,Supplier and Exporter in India
Product Code : SCL-EELE-12791
Indian Lab Suppliers supplies the Transformer Trainer (Product ID: 12791) as part of its electronics engineering lab equipment range. It uses three single-phase transformers, which can also be connected as a three-phase bank, to teach polarity, ratio, open- and short-circuit tests, efficiency, regulation and star/delta connections.
Quick Answer
Each of the three transformers is rated 60 VA with a 230 V primary and secondary taps at 7 V, 12 V and 16 V. Students check additive and subtractive polarity, the transformation ratio of a step-down transformer and isolation-transformer action, then run open-circuit and short-circuit tests to plot the efficiency curve and voltage regulation. Connected in star-delta, the three units feed star- or delta-connected loads of three 60 W halogen lamps, showing how the connection changes line and phase voltages and currents. A multifunction meter reads voltage, current, power, kWh, kVA, frequency and power factor, and a 2 A four-pole MCB protects against short circuit and overcurrent. The trainer runs from 415 V ±10%, 50 Hz three-phase mains, so it must be earthed and used under qualified supervision.
Key Specifications
| Parameter | Detail |
|---|---|
| Transformers | 3 × single-phase, 60 VA each |
| Primary | 230 V |
| Secondary taps | 7 V, 12 V, 16 V |
| Meter | Multifunction: V, A, W, kWh, kW, kVA, Hz, PF (single and three phase) |
| Protection | 4-pole MCB, 2 A, with output terminals and indicator |
| Load | 3 × 60 W halogen lamps, star or delta connection |
| Terminals | 15 A coloured terminals |
| Mains | 415 V ±10%, 50 Hz, three phase |
| Enclosure | ABS moulded with powder-coated, screen-printed panel and connection diagram |
Where This Is Used
Used in electrical machines and power labs of engineering colleges and polytechnics; for complete machine sets see the Electrical Machine Trainers (Product ID: 12790), and for component identification the Display Board - Step Down Transformer (Product ID: 12784). Browse the full Electronics Engineering Lab Equipment range or related Electricity and Magnetism products.
Frequently Asked Questions
Is it a single three-phase transformer?
No, it uses three single-phase transformers that can be connected as a three-phase bank.
What tests can be done?
Polarity, transformation ratio, open circuit, short circuit, efficiency, voltage regulation and star/delta connections.
What supply is needed?
415 V ±10%, 50 Hz three-phase mains.
Related Categories
Electronics Engineering Lab Equipment · Electricity and Magnetism · Engineering Lab Equipment
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