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About Us

Sunyata Power is a premier transformer manufacturer specializing in high-voltage utility grids and heavy industrial applications established in 1979. As a supplier to Fortune Global 500 giants—including Baosteel, Tsingshan, and State Grid—we deliver high-reliability equipment for demanding steelmaking, smelting, and power infrastructure projects.

 

Engineering & Manufacturing Highlights:

Electric Arc Furnace (EAF) & Special Transformers: High-current capacity up to 200 MVA with 20% continuous overload capability (actively supplying top-tier steelmaking and smelting complexes).


Power Transformers: Designed and manufactured up to 220 kV / 300 MVA.
100% In-House Manufacturing: Complete vertical control—from precision coil winding and vacuum insulation baking to custom oil tank fabrication.


ISO-Controlled Quality Assurance: Rigorous, ISO-certified quality management across all production stages in strict compliance with IEC/IEEE standards.

Why Global EPCs & Heavy Industry Trust Sunyata

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47 years of proven transformer engineering, built for extreme power and furnace applications.

  • 47 Years Engineering Heritage

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    Continuous transformer manufacturing excellence since 1979.

  • 220 kV / 300 MVA Grid Capacity

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    High-voltage power transformers engineered for utility transmission.

  • EAF & Special Transformer Leader

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    Heavy-duty furnace transformers up to 200 MVA with 20% overload capability.

  • Tier-1 Industrial Track Record

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    Proven supply history with Baowu, Qingshan, Danieli, and global industrial complexes.

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FACTORY & FACILITIES

PHOTO

Equipped with advanced facilities.

1979

Jiangshan Special Transformer factory was established

to produce power transformer

1993

The 'Tebian' trademark was officially registered to mark our expansion into the development and manufacturing of special transformers.

1994

It was restructured into "Zhejiang Special Transformer Co.,Ltd"

2002

ISO qualified
Quality Management System ISO9001 was qualified

2010

National High-Tech
Awarded the National High-Tech Enterprise 

2013

Well-known brand
“Tebian” was awarded “Well-known” brand for labelling special transformer

2017

Honor Rewarded
Zhejiang Innovative Demonstration Enterprise / Municipal Enterprise Technology Center, etc.

2023

Company Renamed
Serve global customers as Zhejiang Sunyata Power Co., Ltd.