Wholesale 3 Phase High Voltage Oil Type Immersed Power Distribution Transformer for Solar Photovoltaic

Product Description

Product Description

Our oil-immersed transformers are engineered for reliable, efficient, and long-lasting power distribution in utility, industrial, and renewable energy applications. 

1. High Energy Efficiency: Ultra-low no-load and load losses (better than IEC/DOE standards), significantly reducing operating costs.

2.Superior Overload Capacity: Excellent oil circulation and cooling (ONAN/ONAF) allow safe emergency overload up to 150% – ideal for harsh or fluctuating conditions.

3.Long Service Life: High-grade grain-oriented silicon steel, oxygen-free copper windings, and premium transformer oil ensure 25+ years of trouble-free operation.

4.Low Noise & Low Maintenance: Optimized core design minimizes magnetic noise (<55dB); sealed tank structure reduces oil leakage and maintenance frequency.

5.Robust & Adaptable: Heavy-duty tank with anti-corrosion coating (IP65 optional). Works in tropical, coastal, high-altitude, or extreme temperature environments.

6.Full Customization: Voltages (6–35kV), capacities (10kVA–10MVA), tap changers (off-load or on-load), bushings, and protection accessories tailored to your local grid or project spec.

7.Certified & Tested: 100% tested per IEC 60076 / IEEE C57.12. Available with CE, CB, SABS, SONCAP certificates. Factory ISO 9001 certified.

Bottom line: Reliable performance, lower energy bills, less downtime – backed by 15+ years of export experience.

1.Ultra-High Efficiency & Long Service Life

·Ultra-low no-load & load losses achieved with high-permeability grain-oriented silicon steel and oxygen-free copper windings.

·Exceeds IEC 60076 & DOE standards – Lower total cost of ownership (TCO), typically recovering investment within 3–5 years through electricity bill savings.

·Premium materials & sealed tank design prevent oil oxidation and moisture ingress, maintaining dielectric strength for decades.
·150% emergency overload capacity with ONAN cooling, plus 65K winding temperature rise limit – ensuring insulation aging stays far below industry norms.

2.Full Customization

Choose voltages (6–35 kV), capacities (30 kVA–3150 kVA), tap changers (off-load or on-load), bushings, and protection accessories—all tailored to your local specs or project requirements. 

Specification

Rated capacity (KVA)	Voltage combination			Vector group	No-loaddissipation (w)	loaddissipation (w)75°C	No-load current (%)	Impedance voltage(%)	Total weight
	HV	LV	Tapping range					4.0
30	6 6.3 6.6 10	0.4	±2*2.5	Dyn11 Yyn0 Yzn11	100	630/600	1.5		275
50					130	910/870	1.3		340
63					150	1090/1040	1.2		385
80					180	1310/1250	1.2		450
100					200	1580/1500	1.1		520
125					240	1890/1800	1.1		625
160					280	2310/2200	1.0		695
200					340	2730/2600	1.0		795
250					400	3200/3500	0.9		955
315					480	3830/3650	0.9		1085
400					570	4520/4300	0.8		1290
500					680	5410/5100	0.8		1590
630					810	6200	0.6	4.5	1850
800					910	7500	0.6		2210
1000					1150	10300	0.6		2570
1250					1360	12000	0.5		3115
1600					1640	14500	0.5		3520
2000					1940	18300	0.4	5.0	4060
2500					2290	21200	0.4		5105
3150					2400	23600	0.4		6140

APPLICATION AND POSITIVE FEEDBACK

Company Profile

Certifications

Packaging & Shipping

FAQ

1.Are you a trade company or a manufacturer?

We are a production and sales-oriented enterprise focusing on the production of power equipment, integrating design, research and development, manufacturing and technical services.

2. What are your major products?

It specializes in producing complete sets of high and low voltage switchgear, box type substations, cable branch boxes, indoor and outdoor vacuum circuit breakers, isolating switches, grounding switches, load switches, and low voltage components.

3. Can your product be customized ? 

A: Yes,Considering differences in voltage, frequency and other speciality of transformer product in different countries andregions,our product can be customized according to your requirements. 

4. Do you offer guarantee for the products? 

A: Yes. We offer at least one years guarantee for all of our products.

5. How can I place an order with you?

You should first provide us with detailed technical specifications or SLD (single line diagram) or related drawings, etc. via email, WeChat, whatsapp, phone, etc. You can contact any of our sales staff at any time for quotation and further communication.