Transformer
Product Code : SCL-PL-12380
Transformer (SKU SCL-PL-12380) is a teaching transformer with windings of different turns: primary windings of 200 and 800 turns and a secondary winding of 400 turns. Students use it to observe magnetic coupling and electromagnetic induction and to see voltage being stepped up or down, in school physics labs and demonstrations. It is manufactured by Science Lab Supplies at its works in Saha, Ambala (Plot 448, HSIIDC Industrial Area) for direct supply to schools, colleges, tender contractors and distributors.
Specifications
The transformer carries two primary windings, of 200 and 800 turns, and one 400-turn secondary. Choosing the 200-turn primary gives a 1:2 turns ratio, so the output voltage roughly doubles; choosing the 800-turn primary gives 2:1, roughly halving it. It is built for repeated academic use.
| Parameter | Value |
|---|---|
| SKU | SCL-PL-12380 |
| Primary windings | 200 turns and 800 turns |
| Secondary winding | 400 turns |
| Turns ratios available | 1:2 (step-up) and 2:1 (step-down) |
| Demonstrates | Magnetic coupling, electromagnetic induction, voltage transformation, power transfer |
| Manufacturer | Science Lab Supplies, Saha, Ambala, Haryana |
| Country of origin | India |
Applications and Experiments for the Transformer
With an AC input on one primary and a meter on the secondary, students measure input and output voltages and check them against the turns ratio. Switching between the 200-turn and 800-turn primaries turns the same unit from a step-up into a step-down transformer, a clear demonstration for Class 10 and Class 12.
- Class 10 science: electromagnetic induction and the principle of the transformer.
- Class 12 physics: turns ratio, step-up and step-down transformers, and power transfer.
- Voltage reduction as used in power distribution, shown at bench scale.
- Diploma and ITI electrical trades: transformer basics and winding ratios.
Feed the primary only from a low-voltage laboratory AC supply, and let students connect and change leads with the supply switched off.
Standard Scope of Supply
The Transformer is supplied as a single unit as described above, with its 200-turn and 800-turn primary windings and 400-turn secondary winding. An AC supply, voltmeters and leads needed to run the experiment are separate items and can be requested on the same quotation.
Packing, MOQ and Lead Time
Price one transformer for demonstration or a set for every practical group: the Science Lab Supplies quotation covers packing, delivery time and price for exactly that quantity. A low-voltage AC supply, meters and induction apparatus can be included on the same quotation.
As a registered exporter holding an Importer-Exporter Code, Science Lab Supplies can ship to buyers in Sri Lanka, Vietnam, Malaysia, Peru, Egypt and Iraq. The business is registered under Udyam as a manufacturing enterprise (UDYAM-HR-01-0014546) and for GST (GSTIN 06ADEPJ0574F2ZU). Enquire through the enquiry cart or the contact page, and consult the lab tender page for tenders.
Frequently Asked Questions
How many turns do the windings have?
There are two primary windings, of 200 turns and 800 turns, and one secondary winding of 400 turns. This gives a 1:2 step-up ratio or a 2:1 step-down ratio, depending on the primary used.
Will the output exactly match the turns ratio?
In practice the measured output comes out a little below the ideal value because of losses in the windings and core. Comparing measured and ideal voltages is itself a useful discussion point on transformer efficiency.
Is Science Lab Supplies the manufacturer or a trader?
Science Lab Supplies manufactures this transformer at its own factory in Saha, Ambala, India. Buyers get their quotation from the manufacturer directly, with no trading intermediary involved.
Related Transformer and Induction Apparatus
A transformer lesson builds on induction coils, a variable AC source and, for deeper study, a transformer that can be taken apart or tapped at several points. These four items complete that sequence for school and college physics and can all be quoted with the transformer.
- Multitap Transformer — a transformer with several tappings.
- Transformer Parts Kit — for assembling a transformer from parts.
- Induction Coils with Cores — copper coils rated 5 A for induction work.
- AC/DC Laboratory Power Supply — AC output from 1 to 15 V for the primary.
Browse the full Physics Lab range or all physics lab equipment.
Last updated: 25 September 2026
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