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| Amorphous Transformer Core |
Amorphous Transformers are typically
operates the same with the “conventional” transformers except
that, amorphous alloy is used in the iron core of the transformer. As
a result, they have these distinct effects:
-Lower No-load loss (standby power)
which could be reduced to about 1/3.
-Energy saved is a maximum 44% more
than the value of the leading runner.
-CO2 emission is suppressed,
contributing to the prevention of global warming.
Below is selected articles and download
links to serve as tutorials on the applications, implications, and
advantages of using Amorphous Transformers:
An Evaluation of Amorphous Transformer using Load Curve Pattern Model for Pole Transformer
Energy loss in transformer is composed of no-load loss and load loss. If the amorphous transformers (i.e. amorphous metal-based transformer) are adopted for pole transformers owned by electric utilities, large amount of energy savings and reduction of CO2 emissions could be realized. The amorphous transformer has potential to reduce no-load loss by 70% compared with traditional transformers. Read more...
High Efficiency Transformer (Amorphous Transformers)
Transformer causes two kinds of power loss; they are called "no-load loss" and "load loss", and a large amount of energy wastes and electricity cost are caused throughout the year. As a use for pole transformer, amorphous transformer had been adopted since 1991 in order to reduce loss of electric power distribution. However it has become well known after "Super amorphous transformer" produced by Hitachi Ltd., which received "Energy Conservation Award" in 1999. Read more...
Energy Efficiency of Amorphous Metal Based Transformers
Applications: Electric Power Transformers, High Frequency Power Electronics, Telecommunication, Pulse, Transformers and Pulse Power Devices, Magnetic Sensors and Electronic Article Surveillance, Automotive Magnetics, Medical Applications, and Magnetic Shielding. Read more...
Amorphous and Nanocrystalline Materials for Applications as Soft Magnets
This review seeks to summarize the recent developments in the synthesis, structural characterization, properties, and applications in the ®elds of amorphous, bulk amorphous, and nanocrystalline soft magnetic materials. Conventional physical metallurgical approaches to improving soft ferromagnetic properties have relied on the optimization of chemical and microstructural features. Read more...
Selecting Energy Efficient Distribution Transformers A Guide for Achieving Least-Cost Solutions
Amorphous alloys differ from conventional crystalline alloys in their magnetic and mechanical properties (such as hardness and strength). Allied-Signal (US) spent more than 25 years and considerable R&D effort to achieve the commercial production of METGLAS® amorphous alloys. The Hitachi/Metglas group manufactures amorphous metals and is the biggest promoter of amorphous technology in distribution transformers. Read more...
Energy Efficiency of Amorphous Metal Based Transformers
Applications: Electric Power Transformers, High Frequency Power Electronics, Telecommunication, Pulse, Transformers and Pulse Power Devices, Magnetic Sensors and Electronic Article Surveillance, Automotive Magnetics, Medical Applications, and Magnetic Shielding. Read more...
Amorphous and Nanocrystalline Materials for Applications as Soft Magnets
This review seeks to summarize the recent developments in the synthesis, structural characterization, properties, and applications in the ®elds of amorphous, bulk amorphous, and nanocrystalline soft magnetic materials. Conventional physical metallurgical approaches to improving soft ferromagnetic properties have relied on the optimization of chemical and microstructural features. Read more...
Selecting Energy Efficient Distribution Transformers A Guide for Achieving Least-Cost Solutions
Amorphous alloys differ from conventional crystalline alloys in their magnetic and mechanical properties (such as hardness and strength). Allied-Signal (US) spent more than 25 years and considerable R&D effort to achieve the commercial production of METGLAS® amorphous alloys. The Hitachi/Metglas group manufactures amorphous metals and is the biggest promoter of amorphous technology in distribution transformers. Read more...
Energy Efficient Distribution Transformers in Spain: New Trends
Several European projects have shown the interest in acquiring efficient transformers. The Thermie project (1999, co-financed by the European Commission) estimated that energy efficient transformers could save approximately 22 TWh per year by means of C-C’ units (CENELEC HD 428); amorphous core transformers could save even more. The Prophet project continued this task in 2004 and arrived at similar conclusions; furthermore, it showed a rising trend in the installation of amorphous transformers in Japan and China, and India and USA install them too. Read more...
Comparison of Amorphous & CRGO Core Transformer Losses Under Nonlinear Load Condition
Modern standard grain-oriented silicon steel does give low loss and this loss has been reduced substantially over the years by improvements in treatment, such as cold-rolling and laser-scribing. Future improvements in standard silicon steel losses will be relatively modest. However, amorphous magnetic metal used for transformer cores does give the possibility of decrease core losses compared to standard core steel materials. Read more...
Several European projects have shown the interest in acquiring efficient transformers. The Thermie project (1999, co-financed by the European Commission) estimated that energy efficient transformers could save approximately 22 TWh per year by means of C-C’ units (CENELEC HD 428); amorphous core transformers could save even more. The Prophet project continued this task in 2004 and arrived at similar conclusions; furthermore, it showed a rising trend in the installation of amorphous transformers in Japan and China, and India and USA install them too. Read more...
Comparison of Amorphous & CRGO Core Transformer Losses Under Nonlinear Load Condition
Modern standard grain-oriented silicon steel does give low loss and this loss has been reduced substantially over the years by improvements in treatment, such as cold-rolling and laser-scribing. Future improvements in standard silicon steel losses will be relatively modest. However, amorphous magnetic metal used for transformer cores does give the possibility of decrease core losses compared to standard core steel materials. Read more...
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