{"id":10858,"date":"2026-08-29T23:43:11","date_gmt":"2026-08-29T15:43:11","guid":{"rendered":"https:\/\/q8bbzjnpm5.wpdns.site\/?p=10858"},"modified":"2026-08-29T23:43:11","modified_gmt":"2026-08-29T15:43:11","slug":"revolutionizing-power-efficiency-new-amorphous-alloy-dry-type-transformer-leads-industry-transformation","status":"publish","type":"post","link":"https:\/\/subian-electric.com\/es\/news\/revolutionizing-power-efficiency-new-amorphous-alloy-dry-type-transformer-leads-industry-transformation\/","title":{"rendered":"Revolucionando la Eficiencia Energ\u00e9tica: Nuevo Transformador Seco de Aleaci\u00f3n Amorfosa Lidera la Transformaci\u00f3n de la Industria"},"content":{"rendered":"

As reported, the director of operations of one cold storage warehouse was sitting with his financial team and energy consultant, looking at the spreadsheet that showed incorrect results. In the new warehouse with a capacity of 5,000 pallets, which operates all the time while having the normal load of 30 percent, the kWh received is similar to that of a small warehouse with 55 percent load. The problem doesn\u2019t relate to the refrigeration, but to the transformer. The conventional dry-type transformer was burning 2,300 watts in core losses 24 hours a day, irrespective of whether it works with 2 or 200 pallets. The consultant\u2019s suggestion shocked everyone in the room – change the transformer that is only six years old for a new amorphous alloy dry-type transformer that has core losses that are three times less. The return on investment is about 4 years.<\/p>\n

This article is written to explain why the amorphous alloy dry-type transformer is considered revolutionary in power efficiency. The technology description, its method of achieving 60-80% reduction of no load losses, its impact in financial terms and in kilowatt-hours received throughout its life cycle, its evaluation against all existing ways of designing transformers and place in the modern electric grid will be provided in this article. If your transformer doesn’t get lots of loads, this efficiency decision is the most significant one for you in this decade.<\/p>\n

\"\"<\/p>\n

Why This Is Called a Revolution<\/h2>\n

Transformers have been the most dependable and least noticeable machine for many years, taking small and incremental steps towards the improvement of its efficiency through the introduction of better grades of steel, thinner geometries, and better cooling systems. The use of amorphous alloy as a material is revolutionary in that it helps to increase the efficiency of transformers by making a jump rather than a step along the efficiency curve, as it allows for a reduction in no-load loss by 60-80 percent.<\/p>\n

Transformers hardly work at their rated capacity, and utilities choose to build them according to their summer peak, while buildings are created according to the extreme cases. Thus, the one part that has to do the heaviest part of the work in transformers is also the one part that is never stopped. Amorphous alloy\u2019s whole goal to decrease loss that happens when no work is done.yin<\/p>\n

The Material Science Behind Amorphous Metal<\/h2>\n

Amorphous metal is made by pouring molten iron-boron-silicon alloy onto a rotating chilled wheel, cooling it at roughly 1 million \u00b0C per second. The atoms never get a chance to form a crystal lattice \u2014 hence “amorphous.” Without grain boundaries, magnetic domain walls move with far less resistance, so the core loses much less energy to hysteresis on every magnetization cycle.<\/p>\n\n\n\n\n\n\n\n\n\n
Propiedad<\/th>\nAmorphous Ribbon<\/th>\nGrain-Oriented Silicon Steel<\/th>\n<\/tr>\n<\/thead>\n
Typical thickness<\/td>\n0.02\u20130.03 mm<\/td>\n0.23\u20130.30 mm<\/td>\n<\/tr>\n
Crystal structure<\/td>\nNone (disordered)<\/td>\nCrystalline grains<\/td>\n<\/tr>\n
Coercivity (magnetization ease)<\/td>\nMuy bajo<\/td>\nModerate<\/td>\n<\/tr>\n
No-load loss at 1,000 kVA<\/td>\n800\u20131,100 W<\/td>\n2,000\u20132,600 W<\/td>\n<\/tr>\n
Mechanical nature<\/td>\nBrittle, stress-sensitive<\/td>\nTough, workable<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

The trade-off is mechanical: the ribbon is brittle and loses its efficiency advantages if stressed, which is why manufacturing \u2014 winding, annealing, clamping \u2014 demands discipline that commodity silicon-steel lines never needed.<\/p>\n

No-Load Loss: The Silent Energy Drain<\/h2>\n

No-load loss refers to energy lost by the transformer because of magnetized core, which exists from the time it gets power to the time it stops working, or is de-energized. A standard Dry Transformer type of 1,000 kVA takes around 2.000 to 2.600 W of power all the time. If multiplied by 8,760 hours, it can be concluded that one transformer loses between 17,500 and 22,800 kWh a year, which equals to sufficient energy to run 2-3 average home. Amorphous transformers use only 7,000 to 9,600 kWh.<\/p>\n\n\n\n\n\n\n\n
Transformer (1,000 kVA)<\/th>\nP\u00e9rdida en Vac\u00edo<\/th>\nAnnual Energy (no-load)<\/th>\nAnnual Cost @$0.12\/kWh<\/th>\n<\/tr>\n<\/thead>\n
Conventional dry-type (CRGO)<\/td>\n2,300 W<\/td>\n20,148 kWh<\/td>\n$2,418<\/td>\n<\/tr>\n
Amorphous dry-type<\/td>\n950 W<\/td>\n8,322 kWh<\/td>\n$999<\/td>\n<\/tr>\n
Annual difference<\/td>\n1,350 W<\/td>\n11,826 kWh<\/td>\n$1,419 saved<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

No other single specification change on a transformer delivers this. It is the difference between a core that idles cheaply and a core that idles expensively, forever.<\/p>\n

Real Savings: The Kilowatt-Hour Math<\/h2>\n

The amount of money saved will grow for the lifetime of a transformer. The previously described transformer that has a capacity of 1,000 kVA and requiring $0.12\/kWh will be on for 24\/7:
\nAnnual energy savings for the application is 11,826 kWh
\nThe savings that come from the costs of using the device for 1 year: $1,419,
\nThe initial purchase price of the equipment is $6,000 to $8,000 more than the regular transformer
\nThe simple payback period is about 4.2 to 5.6 years.
\nThe gross savings over the period of 20 years is $28,000 to $30,000 (baseline price minus the initial purchase price), which gives approximately $22,000 of net gain for years.<\/p>\n

In case of using the device in the areas with tariffs of $0.18 to $0.25 (some countries of Africa and Asia, and the parts of Europe), the payback period will be reduced to only 2 to 3 years and the overall gain will therefore exceed $40,000. In the case the companies have to pay for carbon offsets or to make systematic reports on ESG, the cases of transformers become even stronger in terms of savings.<\/p>\n

Amorphous Dry-Type Design and Construction<\/h2>\n

The engineering process of combining amorphous core with dry-type construction is intensive. The assembly is made following the steps such as winding the core of a ribbon into step-lap configuration and annealing it in a magnetic field for proper alignment of domains. The core is then clamped with the help of the soft contact plates to avoid losing energy due to mechanical stresses. After that, the insulating windings are applied and tested for compliance with IEC 60076-11, which among other tests includes partial discharge test, in which case the cast resin inner type must withstand less than 10 pC at 1.1 of rated voltage.<\/p>\n

This way, one is able to get a fire proof oil-free transformer which has the lowest losses in its category. One should be careful in using the equipment as transportation or installation procedures may damage the core.<\/p>\n

\"\"<\/p>\n

Amorphous vs Every Other Transformer Design<\/h2>\n\n\n\n\n\n\n\n\n
Dise\u00f1o<\/th>\nNo-Load Loss (1,000 kVA)<\/th>\nFirst Cost<\/th>\nFire Risk<\/th>\nBest For<\/th>\n<\/tr>\n<\/thead>\n
Amorphous dry-type<\/td>\n800\u20131,100 W<\/td>\nAlto<\/td>\nBajo<\/td>\nLight loads, indoor, green projects<\/td>\n<\/tr>\n
Conventional dry-type<\/td>\n2,000\u20132,600 W<\/td>\nMid<\/td>\nBajo<\/td>\nStandard indoor distribution<\/td>\n<\/tr>\n
Amorphous oil-immersed<\/td>\n250\u2013320 W<\/td>\nMid<\/td>\nHigher (oil)<\/td>\nUtility feeders, outdoor<\/td>\n<\/tr>\n
Conventional oil-immersed<\/td>\n600\u2013700 W<\/td>\nBajo<\/td>\nHigher (oil)<\/td>\nOutdoor distribution, lowest capex<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Although the price of amorphous dry-type is high, the cost associated with this technology in terms of fire risk losses is extremely low. It offers the lowest possible losses while ensuring compliance with the building codes regarding installation. It should be noted that amorphous oil-immersed transformers reach an even lower figure when it comes to the losses.<\/p>\n

Where the Revolution Is Happening First<\/h2>\n

The fastest growth in the use of transformers occurs where transformers are left idle for the longest periods of time. The electric utilities are engaging in the replacement of silicon steel transformers for use in rural feeders or residential feeders where the transformers operate at 10-30 percent of their rated capacity due to the fact that amorphous transformers indicate the fastest return on investment for the utility companies. Among the users of the amorphous technology for transformer systems indoors are data centers that operate 24 hours a day and require that their PUE or Power Usage Effectiveness is as low as possible. Indeed, cold storage facilities, warehouses, and commercial office buildings where the transformers work efficiently through the night also find that the use of this technology is beneficial for them. The renewable energy projects are able to employ them for use in conjunction with wind and solar units because of the fact that they need to make use of transformation technology wherever there is a chance to experience a long downtime of the transformer.<\/p>\n

Pricing, Payback, and Total Cost of Ownership<\/h2>\n

Amorphous dry-types command a 20\u201340 percent premium over conventional units. Indicative FOB ranges; prices vary by specification, brand, and region.<\/p>\n\n\n\n\n\n\n\n\n\n
Clasificaci\u00f3n<\/th>\nConventional Dry-Type<\/th>\nAmorphous Dry-Type<\/th>\nTypical Payback<\/th>\n<\/tr>\n<\/thead>\n
250 kVA<\/td>\n$6,500\u2013$11,000<\/td>\n$9,000\u2013$15,000<\/td>\n4\u20136 years<\/td>\n<\/tr>\n
400 kVA<\/td>\n$9,000\u2013$16,000<\/td>\n$12,000\u2013$20,000<\/td>\n4\u20136 years<\/td>\n<\/tr>\n
630 kVA<\/td>\n$13,000\u2013$22,000<\/td>\n$17,000\u2013$28,000<\/td>\n3\u20135 years<\/td>\n<\/tr>\n
1,000 kVA<\/td>\n$20,000\u2013$38,000<\/td>\n$25,000\u2013$45,000<\/td>\n3\u20135 years<\/td>\n<\/tr>\n
2,500 kVA<\/td>\n$45,000\u2013$85,000<\/td>\n$55,000\u2013$95,000<\/td>\n2\u20134 years<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Because the premium percentage falls as ratings rise, larger units reach payback faster. On total cost of ownership, the amorphous dry-type almost always wins at load factors below about 50\u201360 percent \u2014 the operating point of most real transformers.<\/p>\n

Who Makes Them and How to Choose<\/h2>\n\n\n\n\n\n\n\n\n\n
Marca<\/th>\nAmorphous Dry-Type Range<\/th>\nPrice Position<\/th>\nNotas<\/th>\n<\/tr>\n<\/thead>\n
Hitachi Energy<\/td>\nAmorphous distribution line<\/td>\nPremium<\/td>\nCore technology pioneer<\/td>\n<\/tr>\n
ABB<\/td>\nAmorphous core options<\/td>\nPremium<\/td>\nGlobal service network<\/td>\n<\/tr>\n
Siemens<\/td>\nEfficiency-focused units<\/td>\nPremium<\/td>\nStrong in Europe<\/td>\n<\/tr>\n
Schneider Electric<\/td>\nGreen Premium portfolio<\/td>\nPremium<\/td>\nESG documentation strength<\/td>\n<\/tr>\n
Jiangsu Subian Electric Power<\/td>\nSC(B) amorphous series, 100\u20132,500 kVA<\/td>\nValue (25\u201340% lower)<\/td>\nIEC 60076-11 documented<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

The industry leaders in amorphous technology and engineering are Hitachi Energy, ABB, Siemens, and Schneider Electric. They have been competing against each other over time. But when we talk about the criteria from a buyer’s perspective, it can be measured. That means no-load loss, partial discharge, insulation class, and the test report. Right now numerous Chinese manufacturers are competing with the best in this regard. Jiangsu Subian Electric Power is producing SC(B) type of products with delivered capacity between 100 and 2,500 kVA with windings made of resin, insulation degree of F class, no-load loss values of 60\u201380% lower than that of silicon steel and with available documentation in accordance with IEC 60076-11 standard. For the owner of the warehouse, mill, or data center making this decision is not a problem anymore.<\/p>\n

Cautions and Specification Checklist<\/h2>\n

Request the no-load loss number in the standard test report; it should be 60\u201380 percent lesser than the comparable silicon-steel catalog number.
\nMake sure to mention the ribbon grade (for example, 2605SA1) and that the core is step-lap in design and stress-relieved.
\nIndicate the partial discharge limits: leak less than 10 pC at 1.1 \u00d7 nominal voltage for cast resin according to IEC 60076-11.
\nMatch the insulation class (F = 100 K, H = 125 K) with the climatic conditions.
\nBe sure about the requirements for the handling and shipping with sea; one should take into consideration that amorphous cores are sensitive to stress.
\nCheck the profitability of the project based on the tariff and load factor before making the decision.
\nOrder the certificate concerning the type test of this family of ratings and of the first order done by a third party if financing allows.<\/p>\n

\"\"<\/p>\n

Preguntas Frecuentes<\/h2>\n

How much more efficient is an amorphous alloy transformer?<\/h3>\n

It cuts no-load loss by 60\u201380 percent<\/strong> versus grain-oriented silicon steel. A 1,000 kVA amorphous dry-type runs about 800\u20131,100 W of no-load loss versus 2,000\u20132,600 W for a conventional unit \u2014 saving 1,000\u20131,500 W continuously, which is 8,760\u201313,140 kWh per year.<\/p>\n

Is the amorphous dry-type transformer worth the higher price?<\/h3>\n

Yes when the unit is energized at light load for long periods \u2014 which is most transformers. The premium is 20\u201340 percent (about $6,000\u2013$8,000 on a 1,000 kVA unit) and payback runs 3\u20135 years at commercial tariffs, after which the savings are pure gain, typically $22,000+ over 20 years. At high load factors, run the numbers before buying.<\/p>\n

How long does an amorphous core last?<\/h3>\n

Amorphous metal does not age magnetically; the core’s low-loss properties remain stable for the transformer’s full service life, typically 20\u201330 years for a dry-type. The real threats are mechanical \u2014 stress or rough handling \u2014 not aging, which is why proper packing and handling matter.<\/p>\n

Are amorphous dry-type transformers available for export?<\/h3>\n

Yes. Amorphous dry-types from Chinese manufacturers, including the SC(B) series from Jiangsu Subian Electric Power, are exported worldwide with IEC 60076-11 documentation, routine test reports, and 25\u201345 day lead times for standard ratings. Expect to pay the amorphous premium on top of standard dry-type export pricing.<\/p>\n

Can amorphous transformers be repaired in the field?<\/h3>\n

Windings can be repaired or replaced by the factory or a qualified workshop, but core replacement is complex and rarely economical because the ribbon must be rewound and re-annealed with stress control. Treat the core as a sealed component, protect it during handling, and you will rarely need to test that limit.<\/p>\n

Referencias<\/h2>\n