Transformers and package substations for crypto mining
A mining farm keeps its transformer close to full load around the clock. In this mode load losses dominate, and the difference between series amounts to tens of thousands of kWh per transformer per year.
- Hermetically sealed oil-immersed transformers (TMG type) S13, S20, S22 — for outdoor installation, no oil maintenance.
- At around 90 % load, load losses make up most of the total, so series S20 and S22 pay back fastest.
- Package and containerised substations: transformer, 10 kV switchgear and 0.4 kV switchboard assembled and tested at the factory — on site you only connect the cables.
- Overload capability and cooling are discussed for your load profile and site climate.
Annual losses: S13 vs S22 at 90 % load
| Rating, kVA | S13, kWh/year | S20, kWh/year | S22, kWh/year | Difference, kWh/year |
|---|---|---|---|---|
| 1 000 | 80 355 | 64 994 | 58 439 | 21 916 |
| 1 600 | 113 135 | 91 507 | 82 312 | 30 823 |
| 2 500 | 164 443 | 132 956 | 119 563 | 44 880 |
Annual losses = (no-load losses + 0.9² × load losses) × 8760 h. No-load and load losses are taken from the partner factory catalogue, for Dyn11 connection. Multiply the difference by your tariff to estimate the savings.
Ratings
Specifications, currents and all design options for each rating:
How we work
- Questionnaire or specificationSend us a questionnaire, specification or drawing. Within one working day we will reply with an indicative price and lead time; the firm price follows after engineering review.
- Engineering to your requirementsThe factory prepares drawings to your specification: voltages, vector group, losses, dimensions, bushings. We agree them with you before production starts.
- Contract and prepaymentWe work under a supply contract with a Russian legal entity. The manufacturing time is fixed in the contract.
- Manufacturing 25–45 daysStandard manufacturing time at the factory is 25–45 calendar days from production start.
- Factory acceptanceFactory acceptance tests. We send photos and video of your transformer and the test reports before shipment.
- Delivery and documentsDelivery to site, customs clearance, technical passport and test reports in Russian.
Partner factory
- Factory quality management system to ISO 9001, ISO 14001 and ISO 45001
- 20 transformer types have passed state type tests in China
- Built to the customer's drawing and requirements, including non-standard voltages and designs
- Energy efficiency classes 1–3 per GB 20052-2024: you can choose a transformer with minimum losses