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TSTYNICE 15 kv Oil-Immersed Power Transformer

Our oil-immersed 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 Specifications:
• Comprehensive Range: Models S9 through S22
• Voltage Coverage: 6kV to 35kV systems
• Capacity Spectrum: 15kVA to 31,500kVA configurations
• Certification Mastery: ISO 9001, IEC, SGS, Intertek, CCC, CE, BV, GOST compliant

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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Product Advantage

Technical Parameters

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FAQ

1.Ceramic bottle with groove: protects the sealing gasket from aging by ultraviolet rays, directly solving the old problem of oil leakage in traditional transformers.

2.Double seal of tap changer: double insurance, no need to worry about oil leakage during installation

3.Ultra-low no-load loss: adopts step lamination process + high magnetic permeability oriented silicon steel sheet produced by Baosteel, the no-load loss is 5% lower than the national standard (GB/T 6451), and the annual operating electricity cost is significantly saved.

4.Adaptive temperature control system: intelligent heat dissipation design, dynamic adjustment of oil temperature, load loss is reduced by 8%-12%, especially suitable for fluctuating load scenarios

5.Energy efficiency certification: The whole series has passed the first-level energy efficiency certification, compared with the mainstream second-level energy efficiency products in the industry, the annual comprehensive efficiency is improved by 3%-5%.

6.Tansformer box: Made of national standard high-quality steel plate profile, mechanical strength ≥345MPa, durable life >30 years.

Applications

Utilities & Grids
Stable, efficient voltage conversion for power transmission and distribution networks, supporting long-distance reliability and grid resilience.
Industrial Plants
Rugged and durable solution tailored for heavy-load environments such as manufacturing lines and mining operations, ensuring continuous and stable power delivery.
Renewable Energy
Optimized for solar and wind farms, offering high-efficiency power integration and environmental compatibility for sustainable energy systems.
Critical Facilities
Reliable, around-the-clock performance for mission-critical sites like data centers and oil fields, with enhanced safety and minimal maintenance.
Urban Infrastructure
Space-saving, low-noise design ideal for city substations and public buildings, ensuring safe operation in densely populated environments.

Technical Parameter for S Series 15kv No-load Voltage Regulation Transformer

Rated Capacity (KVA)	Voltage Combination			Connection Group Symbol	No-load Loss R(W)	Load Loss R(W)	Impedance Voltage(%)	No-load Current (%)
Rated Capacity (KVA)	High Voltage（KV)	Tapping Range of High Voltage	Low Voltage （KV)	Connection Group Symbol	No-load Loss R(W)	Load Loss R(W)	Impedance Voltage(%)	No-load Current (%)
30	15		0.4		90	690/660	5.5	2.1
50					130	1010/960		2
63					150	1200/1150		1.9
80					180	1440/1370		1.8
100					200	1730/1650		1.6
125					240	2080/1980		1.5
160				Dyn11	290	2540/2420		1.4
200		±5%		Yzn11	340	3000/2860		1.3
250		±2x2.5%		Yyn0	400	3520/3350		1.2
315					480	4210/4010		1.1
400					570	4970/4730		1
500					680	5940/5660		1
630					810	6820	6	0.9
800					980	8250		0.8
1000					1150	11330		0.7
1250					1380	13200		0.7
1600					1660	15950		0.6
2000					1950	19140		0.6
2500					2340	22200		0.5

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.