
Product introduction
S11, S13 series of fully sealed oil-immersed transformers are suitable for AC 50Hz, the original working voltage 20kV and below the power system, as petroleum, metallurgy, chemical, textile, light industry and other enterprises and large dust places of the distribution transformer.


Oi-immersed distribution transformers
Rated capacdity (kVA) | Voltage combinationand tap range | Vector group symbol | Non-load loss (W) | Load loss (W) | No-load current (%) | Short arauit mpedance (%) | ||
High pressure (kV) | High pressure tap range (%) | Low pressure (kV) | ||||||
30 | 11 10.5 10 6.3 6 | ±5 ±2×2.5% | 0.4 0.69 | Yyn0 Dyn11 | 100 | 630/600 | 2.3 | 4 |
50 | 130 | 910/870 | 2.0 | 4 | ||||
63 | 150 | 1090/1040 | 1.9 | 4 | ||||
80 | 180 | 1310/1250 | 1.9 | 4 | ||||
100 | 200 | 1580/1500 | 1.8 | 4 | ||||
125 | 240 | 1890/1800 | 1.7 | 4 | ||||
160 | 280 | 2310/2200 | 1.6 | 4 | ||||
200 | 340 | 2730/2600 | 1.5 | 4 | ||||
250 | 400 | 3200/3050 | 1.4 | 4 | ||||
315 | 480 | 3830/3650 | 1.4 | 4 | ||||
400 | 570 | 4520/4300 | 1.3 | 4 | ||||
500 | 680 | 5410/5150 | 1.2 | 4 | ||||
630 | 810 | 6200 | 1.1 | 4.5 | ||||
800 | 960 | 7500 | 1.0 | 4.5 | ||||
1000 | 1150 | 10300 | 1.0 | 4.5 | ||||
1250 | 1360 | 12000 | 0.9 | 4.5 | ||||
1600 | 1640 | 14500 | 0.8 | 4.5 | ||||
2000 | 1960 | 19800 | 0.8 | 5 | ||||
2500 | 2310 | 23000 | 0.7 | 5 |
Application scenarios
S11 series 10-3150KVA/ 10KV series distribution transformers have remarkable energy-saving effects, and its main feature is the use of new core materials. The magnetic circuit is evenly distributed, which greatly reduces the no-load excitation current and no-load loss. Improve the power factor, improve the quality of power supply, because the core is the all-inclined three-joint structure, so reliable operation, small size, light weight, low noise, good process, good heat dissipation, low temperature rise, no hanging core structure, no pollution, no maintenance, high efficiency. S11-10 ~ 31500KVA three-phase oil-immersed fully sealed power transformer is suitable for 10KV, 50Hz transmission and distribution system, for residential areas, commercial streets, industrial and mining enterprises and rural power and lighting.

Product display







Production workshop






Packaging and transportation

Certification certificate

Frequently asked question
Q: Are you a manufacturer, factory or trading company?
A: Yes, we have been engaged in the development, production and operation of transformers for more than 15 years.
Q: What is your warranty?
A: We offer a 12-month warranty.
Q: Production time?
A: 30 to 45 days or depending on order requirements.
Q: What are your payment terms?
A: T/T, L/C or negotiation.
Q: How does your factory conduct quality control?
A: We carry out 100% QC inspection to ensure that every product is qualified. From raw material to final product manufacturing process, we have more than 10 QC inspections.
Q: Do you have any products in stock?
A: Not normally. All our products are manufactured according to your order quantity.
Q: What does a custom transformer need to provide?
A: Technical drawings and technical specification documents are best, or you can tell us some detailed technical specification dates below "Quote and order required information".
Q: Can I have a catalogue and price list for my MOQ trial order?
A: All of our products are made in China or displayed on the official website, you are always welcome to ask us directly for more information.