Home » Product Category » Three Phase Oil Immersed Power Transformer » TSTY 216 250 315 350 400Mva High Volume Transformer Cooper Aluminum Power Transformer Manufacturer

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

Share to:

TSTY 216 250 315 350 400Mva High Volume Transformer Cooper Aluminum Power Transformer Manufacturer

The 216 MVA to 400 MVA High Volume Power Transformers are designed for large-scale grid and industrial power transmission. Suitable for 110 kV–500 kV substations, power plants, and renewable energy integration projects, they deliver stable performance and long service life under heavy load conditions.

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

Availability:



Inquire

216 mva transformer 250 mva transformer 315 mva transformer 350 mva transformer 400 mva transformer cooper transformer aluminum transformer high volume transformer

Product Advantage

Technical Parameters

Factory Show

FAQ

Certificate Collection

High-capacity power transformer delivers exceptional efficiency and reliability for long-distance and high-voltage energy networks. With rated voltages up to 500 kV, on-load tap changers (OLTC), and advanced cooling systems (ONAN / ONAF / OFAF), this transformer maintains low losses, minimal noise, and high reliability. It is widely applied in utility substations, generation plants, and industrial power grids, meeting international standards such as IEC 60076, IEEE C57.12, and ANSI C57.91 for global compatibility and performance assurance.

Applications:

Utility substations for regional and national grid interconnection.
Power generation plants including thermal, hydro, and renewable energy stations.
Heavy industrial complexes such as steel, mining, and petrochemical facilities requiring large power loads.
Transmission and distribution networks for stepping up or stepping down high-voltage electricity.
Renewable energy integration in large solar and wind farms for grid stability and efficiency.

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.

Parameter	Specification
Rated Capacity (MVA)	216 / 250 / 315 / 350 / 400
Voltage Class (HV/LV)	220 kV – 500 kV / 33 kV – 132 kV
Frequency	50 Hz / 60 Hz
Vector Group	YNd1, YNd11, YNyn0, Dyn11 (customizable)
Cooling Type	ONAN / ONAF / OFAF (optional OFWF)
Tap Changer	On-Load Tap Changer (OLTC), ±8 × 1.25% or ±5 × 2.5%
Winding Material	High-conductivity Copper / Aluminum
Insulation Class	A / F Class, per IEC 60076
Short-Circuit Impedance	10 % – 15 % (typical)
No-Load Loss (kW)	55 – 150 kW (depending on capacity)
Load Loss (kW)	600 – 1200 kW (depending on capacity)
Cooling Medium	Mineral Oil / Synthetic Ester / Natural Ester
Temperature Rise	≤ 65 K (oil) / ≤ 55 K (winding)
Sound Level	≤ 75 dB(A)
Protection Devices	Buchholz Relay, Pressure Relief Valve, Oil Thermometer, Winding Temp Indicator
Altitude	≤ 1000 m (standard), higher altitudes customizable
Ambient Temperature	–40 °C ~ +50 °C
Standards Compliance	IEC 60076 / IEEE C57.12 / GOST / AS NZS / EN60076
Estimated Service Life	25 – 30 years

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.