2500KVA/10KV Oil Filled Three-phase Double-winding Non-excited Voltage Regulating Distribution Transformer

Henan GNEE Electric Co., Ltd. is one of the leading manufacturers and suppliers of 2500kva/10kv oil filled three-phase double-winding non-excited voltage regulating distribution transformer in China, also supports customized service with low price. Welcome to buy discount 2500kva/10kv oil filled three-phase double-winding non-excited voltage regulating distribution transformer for sale here from our factory. If you have any enquiry about pricelist, please feel free to email us.

 

 

This Oil Filled Three-phase Double-winding Non-excited Voltage Regulating Distribution Transformer uses an efficient oil-immersed cooling design, with a rated capacity of 2500KVA and a voltage level of 10KV. It is suitable for industrial and mining enterprises as well as commercial power distribution scenarios. Its three-phase double-winding structure ensures stable power transmission, while the non-excited voltage regulation function allows adjustment of the voltage tap under power-off conditions, reducing operation and maintenance complexity. The product features low loss, high reliability, and a long lifespan, complying with international energy efficiency standards, making it an ideal choice for energy-saving upgrades in power systems.

 

 

 

 

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Rated voltage					No-load loss (W)	Load loss (W)	Short-circuit impedance (%)
High Voltage (KV)		Distribution range(KV)		Low Voltage(KV)
10	±5% (±2×2.5)		0.4		65	455	4.0
					80	655	4.0
					105	945	4.0
					120	1140	4.0
					135	1360	4.0
					160	1665	4.0
					190	1970	4.0
					230	2300	4.0
					270	2760	4.0
					330	3250	4.0
					385	3900	4.0
					460	4460	4.5
					560	5400	4.5
					665	7415	4.5
					780	8640	4.5
					940	10440	4.5
					1085	13180	4.5
					1280	13360	4.5

 

 

 

 

Non-excited voltage regulation (Off-Circuit Tap-Changing) is a common voltage adjustment method for Oil-Filled Three-Phase Double-Winding Non-Excited Voltage Regulating Distribution Transformers. Compared to on-load tap-changing (OLTC), its key advantages include:

 

1. Simple Structure & Cost-Effective

No complex switching mechanisms or real-time voltage regulation systems, reducing manufacturing costs.

Easy maintenance, suitable for budget-limited projects or applications requiring infrequent adjustments.

2. High Reliability & Low Failure Rate

Tap-changing is performed under de-energized conditions, avoiding arcing and mechanical wear caused by live switching.

No moving parts, ensuring long-term stability superior to Oil-Immersed Three-Phase Double-Winding Non-Excited Voltage Regulating Distribution Transformers with OLTC.

3. Energy-Efficient Operation

No additional power loss (e.g., resistive or reactive losses in OLTC), resulting in lower no-load losses.

Ideal for grids with minor voltage fluctuations or where frequent adjustments are unnecessary.

4. Wide Applicability

Commonly used in rural grids, industrial plants, and other scenarios where real-time voltage regulation is not critical.

Offers better voltage adaptability than fixed-tap Non-Excited Voltage Regulating Distribution Transformers.

 

The Oil-Filled Three-Phase Double-Winding Non-Excited Voltage Regulating Distribution Transformer excels in cost efficiency, reliability, and low maintenance, making it ideal for stable grids or budget-sensitive projects. However, its flexibility is limited since adjustments require power interruption.

 

We can also provide the following transformer products:

30-2500KVA/10KV Laminated core distribution transformer

30-2500KVA Power transformer

30-2500KVA Power transformer(Three-phase oil-immersed power transformer)

30-2500KVA/10KV Oil-immersed three-phase double-winding non-excited voltage regulating distribution transformer

30-2500KVA/10KV Epoxy resin cast dry-type transformer

30-2500KVA/10KV Three-phase resin cast insulated dry type power transformer

30-2500KVA Epoxy resin cast dry-type transformer

30-2500KVA/10KV Epoxy resin cast dry-type transformer

30-2500KVA Dry-type three-phase double-winding non-excited voltage regulating distribution transformer

30-2500KVA/10KV Dry-type three-phase double-winding non-excited voltage regulating distribution transformer

30-2500KVA Amorphous alloy dry-type transformer

30-3200KVA Rectifier transformer

6300-42200KVA Three-phase oil-immersed power transformer

800-31500KVA/35KV Oil-immersed power transformer

100-1600KVA Combined transformer

380V Communication Low Voltage Distribution Cabinet

Pre-assembled substation (European style) ,etc.

 

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GNEE Steel Group: Global Steel Supply Chain Integration Expert (2008 - Present)

Founded in 2008, GNEE Steel Group has undergone fifteen years of deep industry cultivation, successfully transforming from a regional trader to a global supply chain management expert. As a pioneer in the integration of the steel industry chain, the group has established a full-cycle value system that spans raw material procurement, production coordination, logistics optimization, and terminal services, setting an innovative operational benchmark in the global steel distribution sector. In the era of Industry 4.0, GNEE Group is accelerating towards its goal of becoming a global integrator of steel industry value through digital restructuring and green supply chain construction.

 

 

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Advanced Production Equipment

GNEE Steel Group owns a full set of shearing, packaging, vacuum casting, vacuum impregnation, and testing stations that represent the high level of the industry. These top-notch production and testing equipment guarantee the creation of first-class products. The company continuously improves its design methods, achieving the most advanced computer-aided design to meticulously craft perfect products.

 

 

Production Environment

The workshop of GNEE Steel Group has strict process management and a closed management system. Regular purification and dust removal tests are conducted to meet the necessary requirements for producing high and low voltage transmission products. It has also passed ISO9001 quality certification and third-party inspection certification for international bidding.

 

 

 

Autonomous Raw Material Supply

The iron cores and electromagnetic wires used in our company's products are all produced independently, which allows better control over the quality and delivery time of raw materials while reducing product costs.

 

 

Raw Material Production Environment

 

 

 

 

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