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TSTYNICE 220kv 230kv Oil-Immersed Power Transformer HV Transformer Manufacturer

220kV 230kV power transformer is a critical piece of equipment used in electrical transmission and distribution networks. These high-voltage transformers step up or step down voltage levels to ensure safe and efficient power delivery across long distances. They are widely used in **state grid projects, substations, power plants, renewable energy stations, and large-scale industrial enterprises.

For detailed specifications, quotations, or project consultations, please contact us:
Email: sales@tstytransformer.com
WhatsApp: +86-18001856258
Our technical team is ready to assist you — wherever your business operates.

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220kV 230kV Power Transformer | High-Voltage Oil-Immersed Transformers

TSTYNICE designs and manufactures oil-immersed 220kV and 230kV transformers with advanced technology, robust short-circuit resistance, and excellent insulation performance. Our designs meet IEC, IEEE, and CSA standards and are trusted in domestic and international grid projects.

Key Features of 220kV 230kV Power Transformers

High Short-Circuit Strength

Mechanical design ensures strong resistance to sudden short-circuit stresses.

Low Losses

Optimized core design and precise leakage magnetic field calculations reduce load losses and improve energy efficiency.

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Low Partial Discharge

Advanced insulation systems ensure safe operation and extend transformer life.

Low Noise Operation

Optimized magnetic circuit design and damping structure reduce noise levels, suitable for urban and industrial applications.

Sealed Tank Design

Fully enclosed oil tank with special sealing structure guarantees 30 years of service life with minimal maintenance.

Flexible Configurations

Available as two-winding, three-winding, autotransformer, and both off-load tap changer (NLTC) or on-load tap changer (OLTC) options.

TSTYNICE Transformers can provide customized designs for your project. Share your requirements, and our engineering team will deliver a complete technical solution and quotation. All products carry CE/IEC/SGS/BV/GOST certifications. Our $8M R&D center develops next-gen solutions.Our distribution 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
Primary Voltage	220 kV / 230 kV (other voltages on request)
Secondary Voltage	69 kV / 66 kV / 35 kV / 34.5 kV / 26.4 kV / 13.2 kV / 11 kV / 10.5 kV / 6.6 kV
Power Rating	10 MVA – 250 MVA (customized designs up to 500 MVA available)
Vector Group	YNd11 (other vector groups available)
Tap Range	±8 × 1.25% (customizable)
Cooling Method	ONAN / ONAF / ODAF (oil natural or forced air cooling options)
Insulation Level (BIL)	Up to 900 kV
Frequency	50 Hz / 60 Hz
Insulation Class	A-class / F-class available
Protection Level	IP54 (outdoor), IP33 (indoor)
Standards	IEC 60076, IEEE C57, ANSI, CSA
Design Life	30 years (with regular maintenance)

Digital Manufacturing Excellence & Scalable Output
At TSTYNICE, our 250,000㎡ smart industrial base in Henan is equipped with state-of-the-art automated systems and 5G-enabled digital control. From raw material to final delivery, every step is precisely managed for optimal quality and efficiency.

Our 99% automation rate supports daily output of 50 oil-immersed transformers, plus 3,000 substations and 10,000 switchgear units annually—ensuring rapid response to bulk orders and urgent project needs worldwide.

Q: Are you a factory or trading company?

A: We are an integrated manufacturer and exporter. OEM/ODM services are supported.

Q: What are your main advantages?

A: Over 30 years of industry experience, advanced production lines, reliable quality, fast lead time, and responsive service. Free spare parts are also available for support.

Q: How fast can you deliver?

A: Delivery time depends on the order quantity. Normally 15–20 days after receiving deposit.

Q: What payment methods do you accept?

A: T/T, L/C, PayPal, Visa, Western Union — based on your order needs.

Q: Do you inspect the products before shipment?

A: Yes, we conduct 100% quality inspection before delivery.

Q: What certifications do you hold?

A: CE, SGS, ISO, IEC, GOST —all internationally recognized. We also partner with brands like DuPont, ABB, and Siemens.

Q: How can I be sure you're using quality materials?

A: We welcome material testing upon delivery. We focus on long-term partnerships, not one-time transactions.

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.