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TSTY 100 120 150 160 200 Mva High Voltage Transformer Cooper Aluminum Power Transformer Manufacturer

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TSTY 100 120 150 160 200 Mva High Voltage Transformer Cooper Aluminum Power Transformer Manufacturer

Available with copper or aluminum windings, ONAN/ONAF cooling, and OLTC or off-circuit tap options, these transformers deliver efficient voltage conversion from 110kV to 220kV. Ideal for stable, long-term operation in both utility and industrial applications.

• Certification Mastery: ISO 9001, IEC, SGS, Intertek, CCC, CE, BV, GOST compliant

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These 100 MVA, 120 MVA, 150 MVA, 160 MVA, and 200 MVA high voltage transformers are engineered for reliable power transmission in regional substations, industrial grids, and renewable energy systems. Designed to IEC 60076 standards, they feature high mechanical strength, low loss, and excellent short-circuit resistance.

Applications

Utility Substations: Step-up or step-down transformers in 110 kV–220 kV transmission networks.
Industrial Power Plants: Supplying stable, large-scale power for steel, petrochemical, and manufacturing facilities.
Renewable Energy Projects: Connecting wind, solar, and hydro generation systems to high-voltage grids.
Urban & Regional Grids: Ensuring efficient power transmission and voltage regulation for cities and industrial zones.
Infrastructure Projects: Airports, metro systems, and data centers requiring high-capacity power transformation.

All products carry CE/IEC/SGS/BV/GOST certifications. Our $8M R&D center develops next-gen solutions.Our air natural cooling transformer series represents the pinnacle of power conversion technology, delivering unmatched performance, safety, and durability. Engineered for excellence, these transformers set industry benchmarks for reliability across global power applications.

Technical Parameters

Item	Specification
Rated Capacity	100 MVA, 120 MVA, 150 MVA, 160 MVA, 200 MVA
High Voltage (HV)	110 kV / 132 kV / 150 kV / 220 kV (customizable)
Low Voltage (LV)	11 kV / 22 kV / 33 kV (customizable)
Connection Group	YNd11 / Dyn11 / YNyn0
Winding Material	Copper or Aluminum
Cooling Type	ONAN / ONAF / OFAF / ODAF
Tapping Range	±2×2.5% or ±5×1.5% (with OLTC or NLTC)
Frequency	50 Hz / 60 Hz
Short Circuit Impedance	8 – 14% (depending on design)
Insulation Level	Up to 250 kV BIL
No-Load Loss	As per IEC 60076 / ANSI C57.12 standards
On-Load Loss	As per IEC 60076 / ANSI C57.12 standards
Vector Group	Dyn11 / YNd11 / YNyn0
Cooling Medium	Mineral Oil / Synthetic Ester (optional)
Protection Devices	Oil thermometer, Buchholz relay, pressure relief valve, oil level gauge
Standards	IEC 60076, ANSI C57.12, BS 171, GB 1094

Spanning 250,000 in Henan, our smart factory leverages 5G automation to produce 3,000+ IEC/CE-certified substations annually. With 158 patents and 99% automation, we power projects across 80+ countries.

Q: Are you a factory or a trade company?

A: Integrated Manufacturing & Trading, OEM/ODM available.

Q: Our Advantage?

A: 30 years experience, Advanced production equipments, Stable quality, Fast delivery, Professional & good & Prompt service.Also some free parts can be provided.

Q: How long is your delivery time?

A: it is depends on your quantity,generally within 15-20 days upon receipt of the advance payment.

Q: What is your payment terms?

A : T/T, L/C,Visa Paypal ,Weatern Union for different circumstances.

Q: Do you have inspection procedure before shiping?

A: Yes,we do 100% QC inspection

Q: What certificates do you have？

A: CESGS ISOIEC StandardsGost Certificates.

Long-term strategic partnerships with DuPont, ABB, Siemens, etc.

Q:AS we knew, when we make order, some suppliers used lower material insted of high quality material products and send to us, how can i trust you?

A: we suggest clients to test the material after receiving goods. We aim to do long term business, not one times.

TSTYNICE transformers hold ISO 9001, IEC 60076, CE, GOST, SGS, and BV certifications, with 158 patents (20 inventions). Our CNAS-accredited lab ensures global compliance across 80+ markets.