Connected calculations
Follow core, winding, loss and impedance results in one calculation chain. Review achieved values alongside your guarantees.
TransformerOS / Design Software
Transformer Design Software for Distribution and Power Transformers
Bring transformer calculations, material costs and 2D drawings into one connected workspace. Compare your options, review the checks and prepare your next proposal.
Full access for 14 days, 25 credits included. No card needed.
Costed BOM in minutespriced at your own material rates
14 modulesconnected calculation workflow
11 profilesstandard-specific inputs and checks
2D Engineering Studiocomponent drawings · 3D coming soon
For sales and estimation
A costed bill of materials in minutes.
Answer an enquiry the same day. Enter the rating, voltages and guaranteed losses; TransformerOS designs the transformer and returns every material quantity, priced at your own purchase rates, ready for the quotation.
- Quantities from the actual design: conductor, core steel, oil, tank steel, radiators and insulation, not a rule of thumb.
- Your prices, once: set copper, aluminium, CRGO and oil rates in Settings and every new design is costed with them.
- Total owning cost: material cost plus the tender's loss capitalisation, so you quote the option that wins.
- Change a rate, see the price: when copper moves, re-price the BOM in seconds.
14-day free trial · no card
| Material | Qty | Amount |
|---|---|---|
| Copper conductor (HV + LV) | 430 kg | ₹3,87,000 |
| CRGO core steel | 900 kg | ₹2,07,000 |
| Transformer oil | 520 L | ₹49,400 |
| MS steel: tank and frames | 650 kg | ₹48,750 |
| CRCA radiators | 280 kg | ₹23,800 |
| Insulation | 90 kg | ₹31,500 |
| Accessories and hardware | 1 set | ₹45,000 |
| Material cost | ₹7,92,450 | |
Illustrative example at sample rates. Your quantities come from your design and your prices from your price list.
Built around your workflow
Less switching tools. More time to engineer.
Keep the specification, calculations and deliverables together—from the first design option to the proposal you share.
Standards-aware inputs
Load presets and checks from your selected reference profile. Review coverage and assumptions with your engineering team.
Compare the trade-offs
Rank design options by material cost and capitalised losses, using your rates and the tender’s evaluation factors.
2D drawings and BOM
Review general arrangements, component sheets and material quantities together. DXF export is available on eligible plans.
Reports with your identity
Bring your logo, layout and signatures to the deliverables you share. Choose the right level of detail for your customer.
A workspace for your team
Keep collaboration organised with roles, design sharing and an activity log. Get help through a dedicated support thread.
How it works
Specification in. Ranked, finalised designs out.
- Enter the specification. Rating, voltages, vector group, tapping, cooling and the guarantees.
- Calculate the chain. Start from an auto-design and work through each module with guaranteed, achieved and margin on every check.
- Optimise. Sweep the levers, rank by total owning cost, keep the one you will bid.
- Finalise and deliver. Finalising locks the design and unlocks the clean report, GTP sheet, GA drawings and BOM.
Security and your data
Your designs stay yours, and only yours.
Transformer designs are your competitive edge. TransformerOS is built so that no other company, and no one outside your team, can see them.
Each company sealed off
Every design, revision, report, invoice and support case belongs to one organisation. Other customers cannot open, list or even confirm it exists, and an automated test checks that separation.
Strong sign-in
Passwords stored with Argon2id, the current recommended standard; optional two-factor sign-in with an authenticator app; accounts lock after repeated wrong passwords; idle sessions end automatically.
Access you control
Admins, managers, designers and viewers each see only what their role allows. A design is shared with a colleague only when you choose, as view-only or edit.
Records that cannot be altered
A finalised design is locked for good and its report carries an integrity code. On paid plans, every save is kept as a revision you can compare and restore.
Encrypted, hosted in India
All traffic is encrypted over HTTPS. Data is stored on servers in India. Card and bank details go straight to Razorpay and never reach our servers.
Your data, your rights
We never sell your data or use your designs to train anything. Export or delete your data at any time, under India's Digital Personal Data Protection Act 2023.
Pricing
A platform fee for the tools. Credits only when you finalise a design.
Choose the seats, tools and finalisation rating limit that fit your team. Compare the included credits and export options before you start.
Start your first design today.
Free for 14 days with 25 credits. Your email is your sign-in; a verification code confirms it in a minute.