Transformer Trainer
Product Code : LSK-EPS-10522
Transformer Trainer (SKU LSK-EPS-10522) is a fully instrumented module for examining single-phase and three-phase power and distribution transformers, from turns ratio and connections to losses, heating and protection. It serves electrical machines and power systems practicals in B.Tech/B.E. and diploma electrical engineering. Colleges, polytechnics, training institutes, tender contractors and distributors can obtain it from Science Lab Supplies, a laboratory equipment supplier in India with its base in Ambala.
Specifications
Every transformer trainer feature is set out on a separate table row. In short, the module combines two delta-star transformers with one three-phase and three single-phase educational transformers working at one volt per turn, plus meters, switchable loads, an auto-transformer, thermocouples and a protection relay on one panel.
| Specification | Value |
|---|---|
| SKU | LSK-EPS-10522 |
| Transformer types covered | Single-phase and three-phase power and distribution transformers |
| Delta-star transformer | One three-phase delta-star transformer |
| Second delta-star transformer | Fixed ratio, for extra experiments |
| Three-phase educational transformer | One |
| Single-phase educational transformers | Three, with tertiary windings |
| Educational winding ratio | One volt per turn (no-load output voltage equals secondary turns) |
| Winding terminals | Colour-coded shrouded sockets |
| Meters | Analogue and digital meters and transducers for voltage, current and power |
| Loads | Selectable resistive, inductive and capacitive |
| Load connections | Parallel, series, delta or star |
| Low-voltage supply | Adjustable auto-transformer |
| Thermocouples | On one winding set and core of the three-phase educational transformer, and on one single-phase unit |
| Temperature display | Digital temperature indicator |
| Protection | Current transformers in three-phase circuits linked to an industrial-standard relay |
| Relay functions | Line and earth current, voltage and frequency faults; fault event recording |
| Relay setting | Local control panel or computer cable link (software included) |
| Circuit-breakers | Hand-operated switches and open/closed lamps |
| Leads | Set of shrouded leads |
| Safety | Emergency switch, mains isolator, protection fuses |
| Supplied by | Science Lab Supplies, Ambala, India |
Applications and Experiments for the Transformer Trainer
With the trainer, students can connect windings in different arrangements, load them and measure voltage, current, power and temperature. Because the educational transformers work at one volt per turn, no-load output voltage equals the number of secondary turns, which makes ratio and connection experiments easy to check.
- B.Tech electrical machines lab: turns ratio, polarity and three-phase connections, building on the mutual induction shown by the Demonstration Transformer Model.
- Regulation and efficiency under resistive, inductive and capacitive loads, a topic the Electrical Inductor Loading Bank also addresses.
- Core and winding temperature rise, read from the thermocouples.
- Transformer protection: line and earth current, voltage and frequency faults.
- Diploma electrical: role of tertiary windings in single-phase transformers.
The trainer runs at mains voltages; use it only under trained supervision.
Standard Scope of Supply
The trainer comes with all the transformers listed above, the switchable loads, auto-transformer, meters, thermocouples with temperature indicator, protection relay and software, circuit-breakers with lamps, and a set of shrouded leads. The computer used for cable programming of the relay is confirmed on the quotation.
Packing, MOQ and Lead Time
Enquire for a single trainer or for a set covering several lab groups. Our quotation gives the packing, delivery time and price for your quantity, and mobile transformers or other power system modules can be added to the same quotation.
Backed by an Importer-Exporter Code, Science Lab Supplies can ship to buyers in the UAE, Saudi Arabia, Oman, the Philippines, Nepal and Bangladesh. Questions about transformer tests are welcome on the contact page; for a price, add the trainer to the enquiry cart, and see the lab tender page for tender buying.
Frequently Asked Questions
Why do the educational transformers work at one volt per turn?
At one volt per turn, the no-load output voltage equals the number of secondary turns, so students can relate measured voltages directly to winding turns.
Can transformer temperatures be measured?
Yes. Thermocouples on the windings and core of the three-phase educational transformer and on one single-phase unit feed a digital temperature indicator, giving direct readings of core and winding temperatures.
Who supplies the Transformer Trainer?
Science Lab Supplies, working from Ambala, India, quotes the trainer for college laboratories and tender orders, and can add the mobile transformers or a differential relay to the same quotation.
How are the relay settings made?
The relay is set from its local control panel, or through a cable link to a suitable computer running the included software, and it records fault events for later analysis.
Related Transformer and Protection Equipment
These Electrical Power System and Physics Lab items suit a transformer laboratory: two mobile transformers, a distribution trainer that places transformers in a network, a differential relay, a load bank and two school-level transformer sets, and any of them can share one quotation.
- Three Phase Mobile Transformer — three identical transformers on a common core forming a three-limb unit.
- Single Phase Mobile Transformer — each transformer in its own steel enclosure, used singly or as one three-phase bank.
- Distribution Trainer — line power transformer plus a 110 V line receive transformer.
- Differential Protection Relay — magnetising inrush restraint with amplitude and vector matching.
- Power Factor Load Bank — voltage-selector switch for different line voltages in single and three-phase circuits.
- Transformer — 200 and 800 turn primary windings with a 400 turn secondary.
- Transformer Parts Kit — coils from 300 to 1800 turns with a 32 x 25 mm U and I core.
Browse the full Electrical Power System range, the Electrical and Electronics range, or all engineering laboratory equipment.
Last updated: 22 October 2026
