Factory Price 35kv 3150kVA 20mva 31.5mva Oil Filled Industrial Distribution Transformers Price

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Factory Price 35kv 3150kVA 20mva 31.5mva Oil Filled Industrial Distribution Transformers Price

Customization:	Available
Application:	Power
Phase:	Three

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Product Description

📋 Basic Information

Model NO.

S13/S20/S22

Core

Core-type Transformer

Cooling Method

Oil-immersed Type

Winding Type

Two-winding Transformer

Certification

ISO9001

Usage

Power, Distribution Transformer

Frequency

50 Hz, 60 Hz

Core Material

Copper, Aluminum

Input Voltage

35kv, 36.5kv

Output Voltage

6.3kv, 10.5kv

Transport Package

Wooden Case

Production Capacity

6000PCS/Year

💡 Products Description

Oil Filled Industrial Distribution Transformer

10kV Oil Immersed Sealed Distribution Transformer & 35kV On-load Tap Changer Power Transformer

This product adopts a fully sealed corrugated oil tank structure. The transformer oil does not come into contact with the surrounding air, preventing moisture absorption and maintaining insulation strength. The elimination of oxygen entry avoids the aging of insulation materials, significantly improving the service life of the product.

The stacking method of the iron chips is staged, optimizing the magnetic circuit distribution. No-load loss, no-load current, and noise are reduced by 20% and 10% respectively compared to traditional stacked iron core transformers.

📊 Product Parameters

Rated Capacity (kVA)	Voltage Combination			Connection Symbol	No-load Loss (W)	Load Loss (75℃ W)	No-load Current %	Short-circuit Impedance %
Rated Capacity (kVA)	H.V. (kV)	Tapping Range	L.V. (kV)	Connection Symbol	No-load Loss (W)	Load Loss (75℃ W)	No-load Current %	Short-circuit Impedance %
30 - 125	6/10/10.5	±2x2.5 / ±5	0.4	Dyn11/Yzn11	65 - 135	455 - 1360	1.5 - 1.1	4.0
160 - 400	6/10/10.5	±2x2.5 / ±5	0.4	Dyn11/Yyn0	160 - 330	1665 - 3250	1.0 - 0.8	4.0
500 - 1600	6/10/10.5	±2x2.5 / ±5	0.4	Dyn11/Yyn0	385 - 940	3900 - 10440	0.8 - 0.5	4.5
2000 - 2500	6/10/10.5	±2x2.5 / ±5	0.4	Dyn11/Yyn0	1085 - 1280	13180 - 13360	0.4	5.0

Rated Capacity (kVA)	H.V. (kV)	L.V. (kV)	Connection Symbol	No-load Loss (W)	Load Loss (kW)	No-load Current %	Short-circuit Impedance %
3150 - 6300	35-38.5	6.3/10.5	Yd11	2.4 - 4.2	21.9 - 33.3	0.45	7 - 8
8000 - 12500	35-38.5	6.3/10.5	YNd11	5.8 - 8.0	36.5 - 51.1	0.35 - 0.3	8
16000 - 31500	35-38.5	6.3/10.5	YNd11	9.7 - 16.2	62.5 - 106.4	0.30 - 0.25	10

🔍 Detailed Images

🏭 Factory Profile

Established in 2003, our facility is a leading manufacturer of distribution transformers. With two manufacturing bases covering over 30,000 m², we operate three modern workshops to meet global customer needs. Our primary products include energy-saving dry-type transformers, oil-immersed transformers, and intelligent substations (up to 35kV).

By introducing advanced production lines, including world-leading core cutting and epoxy resin cast tank equipment, we ensure high-quality output. We hold ISO9001-2008, ISO14001-2004, and OHSAS18001-2007 certifications. All transformers meet international IEC standards.

✅ Quality Assurance

❓ Frequently Asked Questions

Why choose our transformers?

We feature a strong R&D team with over 20 years of experience in transformer design, ensuring compliance with international standards such as IEC, IEEE/ANSI, and CSA. Our products offer excellent stability and cost-effectiveness.

Do you offer customized services?

Yes, we provide comprehensive OEM and ODM services. We can customize transformer specifications, input/output voltages, and cooling methods based on your specific requirements.

What is the minimum order quantity (MOQ)?

Our standard MOQ is typically 1-2 pieces. For highly customized products, the MOQ may vary based on the specific demand and technical requirements.

How does the fully sealed corrugated oil tank benefit the transformer?

The fully sealed design prevents the transformer oil from contacting the air, which eliminates moisture absorption and oxygen-related aging of insulation materials, thereby extending the equipment's lifespan.

What international standards do your products follow?

Our products are manufactured according to the international IEC standard and hold ISO9001, ISO14001, and OHSAS18001 certifications to ensure global quality compliance.

How is the product noise level managed?

We utilize a staged iron core stacking process that optimizes the magnetic circuit distribution, reducing both no-load noise and current by approximately 10-20% compared to traditional designs.