Product Description

Introducing our groundbreaking, fully sealed distribution transformer, masterfully crafted for flawless integration into 10kV / 0.4kV, 50Hz distribution and transformation systems. This powerhouse of engineering excellence serves as an indispensable asset, perfect for deployment in a wide array of environments including residential complexes, commercial buildings, public infrastructure, and industrial landscapes. It stands unmatched in mining enterprises, power generation facilities, and both urban and rural power grids. Built to exceed the rigorous GB1094 power transformer standards, this product embodies unparalleled quality and reliability.
Use Condition
Maximum ambient temperature: + 40 ºC. The transformer excels even when the temperature soars.
Minimum ambient temperature: - 25 ºC. Engineered to perform with steadfast reliability even in freezing conditions.
Altitude: < 1000m. Specifically adapted for optimal efficiency within this altitude range.
Maximum monthly average humidity: 90% (20 ºC). Designed to operate smoothly in high humidity conditions.
Installation location: Suitable for both indoor and outdoor environments, given there is no risk of fire, explosion hazards, severe pollution, chemical corrosion, or intense vibration. This ensures durability and peak performance.

TechnicaldataofS11-M 10kVthree-phasefullsealnonexcitationvoltageregulatingdistributiontransformer
Rated capacity(kVA) |
Voltage Combination |
Connection Symbol |
No-Load Loss (W) |
Load Loss (W)75ºC |
No-Load Current (%) |
Short Circuit Impedance (%) |
High Voltage (kV) |
High Voltage Tapping Range(%) |
Low Voltage (kV) |
30 |
6
10
10.5
11 |
±5(or) ± 2 × 2.5 |
0.4 |
Dyn11( or) Yyn0 |
100 |
630/600 |
2.3 |
4 |
50 |
130 |
910/870 |
2 |
80 |
180 |
1310/1250 |
1.9 |
100 |
200 |
1580/1500 |
1.8 |
125 |
240 |
1890/1800 |
1.7 |
160 |
280 |
2310/2200 |
1.6 |
200 |
340 |
2730/2600 |
1.5 |
250 |
400 |
3200/3050 |
1.4 |
315 |
480 |
3830/3650 |
1.3 |
400 |
570 |
4520/4300 |
1.2 |
500 |
680 |
5410/5150 |
1.1 |
630 |
810 |
6200 |
1 |
4.5 |
800 |
980 |
7500 |
1 |
1000 |
1150 |
10300 |
1 |
1250 |
1360 |
12000 |
0.9 |
1600 |
1640 |
14500 |
0.8 |
2000 |
1940 |
18000 |
0.8 |
2500 |
2300 |
21000 |
0.6 |
TechnicaldataofS11-M 11kVthree-phasefullsealnonexcitationvoltageregulatingdistributiontransformer
Rated capacity(kVA) |
Voltage Combination |
Connection Symbol |
No-Load Loss (W) |
Load Loss (W)75ºC |
No-Load Current (%) |
Short Circuit Impedance (%) |
High Voltage (kV) |
High Voltage Tapping Range(%) |
Low Voltage (kV) |
30 |
6
10
10.5
11 |
±5(or) ± 2 × 2.5 |
0.4 |
Dyn11( or) Yyn0 |
80 |
630/600 |
2.1 |
4 |
50 |
100 |
910/870 |
1.9 |
80 |
130 |
1310/1250 |
1.8 |
100 |
150 |
1580/1500 |
1.6 |
125 |
170 |
1890/1800 |
1.5 |
160 |
200 |
2310/2200 |
1.4 |
200 |
240 |
2730/2600 |
1.3 |
250 |
290 |
3200/3050 |
1.2 |
315 |
340 |
3830/3650 |
1.1 |
400 |
410 |
4520/4300 |
1.0 |
500 |
480 |
5410/5150 |
1.0 |
630 |
570 |
6200 |
0.9 |
4.5 |
800 |
700 |
7500 |
0.8 |
1000 |
830 |
10300 |
0.7 |
1250 |
970 |
12000 |
0.6 |
1600 |
1170 |
14500 |
0.6 |
2000 |
1360 |
18000 |
0.5 |
2500 |
1610 |
21000 |
0.4 |
Technical data of S11-M type 20kV three-phase full sealnonexcitationvoltageregulatingdistributiontransformer
Rated capacity(kVA) |
Voltage Combination |
Connection Symbol |
No-Load Loss (W) |
Load Loss (W)75ºC |
No-Load Current (%) |
Short Circuit Impedance (%) |
High Voltage (kV) |
High Voltage Tapping Range(%) |
Low Voltage (kV) |
30 |
20 |
±5(or) ± 2 × 2.5 |
0.4 |
Dyn11( or) Yyn0 |
100 |
690/660 |
2.1 |
5.5 |
50 |
130 |
1010/960 |
2.0 |
63 |
150 |
1200/1150 |
1.9 |
80 |
180 |
1440/1370 |
1.8 |
100 |
200 |
1730/1650 |
1.6 |
125 |
240 |
2080/1980 |
1.6 |
160 |
280 |
2540/2420 |
1.4 |
200 |
340 |
3000/2860 |
1.3 |
250 |
400 |
3520/3360 |
1.2 |
315 |
480 |
4210/4010 |
1.1 |
400 |
570 |
4970/4730 |
1.0 |
500 |
680 |
5940/5660 |
1.0 |
630 |
810 |
6820 |
0.9 |
6 |
800 |
980 |
8250 |
0.8 |
1000 |
1150 |
11330 |
0.7 |
1250 |
1360 |
13200 |
0.7 |
1600 |
1640 |
15950 |
0.6 |
2000 |
1940 |
19140 |
0.6 |
2500 |
2300 |
21000 |
0.5 |
Technical data of S13-M type 20kV three-phase full sealnonexcitationvoltageregulatingdistributiontransformer
Rated capacity(kVA) |
Voltage Combination |
Connection Symbol |
No-Load Loss (W) |
Load Loss (W)75ºC |
No-Load Current (%) |
Short Circuit Impedance (%) |
High Voltage (kV) |
High Voltage Tapping Range(%) |
Low Voltage (kV) |
30 |
20 |
±5(or) ± 2 × 2.5 |
0.4 |
Dyn11( or) Yyn0 |
80 |
690/660 |
2.0 |
5.5 |
50 |
100 |
1010/960 |
1.9 |
63 |
110 |
1200/1150 |
1.8 |
80 |
130 |
1440/1370 |
1.7 |
100 |
150 |
1730/1650 |
1.5 |
125 |
180 |
2080/1980 |
1.5 |
160 |
200 |
2540/2420 |
1.3 |
200 |
240 |
3000/2860 |
1.2 |
250 |
280 |
3520/3360 |
1.1 |
315 |
340 |
4210/4010 |
1.0 |
400 |
400 |
4970/4730 |
0.9 |
500 |
480 |
5940/5660 |
0.9 |
630 |
570 |
6820 |
0.8 |
6 |
800 |
680 |
8250 |
0.7 |
1000 |
810 |
11330 |
0.6 |
1250 |
980 |
13200 |
0.6 |
1600 |
1150 |
15950 |
0.5 |
2000 |
1360 |
19140 |
0.5 |
2500 |
1640 |
22220 |
0.4 |
Maintechnicalparametersof800kVA~31500kVAthree-phasedoublewindingnonExcitation: Essential for the flawless operation of transformers, excitation is pivotal in ensuring that the transformers maintain optimal performance and efficiency within power systems, enhancing their reliability and effectiveness.Voltage: The lifeblood of electrical systems, voltage plays a critical role in ensuring smooth and reliable power distribution, enabling industrial systems to function seamlessly and enhance their operational excellence.Regulating: A fundamental process for maintaining stable and consistent power output, regulating ensures that high-performance standards are met with precision and reliability, safeguarding the integrity of power systems. Power Transformer: As the backbone of industrial power supply systems, our power transformers deliver exceptional reliability and efficiency, meticulously tailored to meet the rigorous demands of high-capacity operations.
Rated capacity(kVA) |
Voltage Combination |
Connection Symbol |
No-Load Loss (W) |
Load Loss (W)75ºC |
No-Load Current (%) |
Short Circuit Impedance (%) |
High Voltage (kV) |
High Voltage Tapping Range(%) |
Low Voltage (kV) |
630 |
33 |
± 5% |
3.15
6.3
10.5 |
Yd11 |
830 |
7870 |
1.1 |
6.5 |
800 |
980 |
9410 |
1 |
1000 |
1150 |
11540 |
1 |
1250 |
1410 |
13940 |
0.9 |
1600 |
1700 |
16670 |
0.8 |
2000 |
2180 |
18380 |
0.7 |
2500 |
2560 |
19670 |
0.6 |
3150 |
33~38.5 |
3040 |
23090 |
0.56 |
7 |
4000 |
3620 |
27360 |
0.56 |
5000 |
4320 |
31380 |
0.48 |
6300 |
5250 |
35060 |
0.48 |
7.5 |
8000 |
± 5% or ± 2 × 2. 5% |
3.15
3.3
6.3
6.6
10.5
11 |
YNd11 |
7200 |
38500 |
0.42 |
10000 |
8700 |
45300 |
0.42 |
12500 |
10080 |
53900 |
0.4 |
8 |
16000 |
12160 |
65800 |
0.4 |
20000 |
14400 |
79500 |
0.4 |
25000 |
17020 |
94100 |
0.32 |
31500 |
20220 |
112900 |
0.32 |
Main technical parameters of 2000 kVA ~ 20000 kVA three-phase double winding on load voltage regulating power transformer: Crafted for excellence, this transformer range offers superior performance, characterized by its robust capacity and precision-engineered design to effortlessly meet extensive industrial requirements.
Rated capacity(kVA) |
Voltage Combination |
Connection Symbol |
No-Load Loss (W) |
Load Loss (W)75ºC |
No-Load Current (%) |
Short Circuit Impedance (%) |
High Voltage (kV) |
High Voltage Tapping Range(%) |
Low Voltage (kV) |
2000 |
33 |
± 3 × 2. 5% |
6.3
10.5 |
Yd11 |
2300 |
19240 |
0.8 |
6.5 |
2500 |
2720 |
20640 |
0.8 |
3150 |
33~38.5 |
3230 |
24710 |
0.72 |
7 |
4000 |
3870 |
29160 |
0.72 |
5000 |
4640 |
34200 |
0.68 |
6300 |
5630 |
36800 |
0.68 |
7.5 |
8000 |
6.3
6.6
10.5
11 |
YNd11 |
7870 |
40600 |
0.6 |
10000 |
9280 |
48100 |
0.6 |
12500 |
10940 |
56900 |
0.56 |
8.0 |
16000 |
13170 |
70300 |
0.54 |
20000 |
15570 |
82800 |
0.54 |
Main products
Company Profile
HY TRANSFORMER stands as a beacon of innovation in the high-tech arena, masterfully crafting and delivering top-tier power transformers and an array of related products. Our extensive expertise extends to the manufacture of a wide variety of distribution transformers, with a particular focus on those rated at 35kV and below. This includes our signature SC(B)10, SC(B)11, and SC(B)12 series of epoxy resin cast dry-type transformers. Our advanced product line also boasts state-of-the-art Non-sealed H grade dry-type power transformers, as well as the prestigious S series oil-immersed transformers. Further elevating our offerings are the S(B)H15-M and S(B)H16-M sealed amorphous alloy transformers. To complement these, we present the YB series of box substations, designed in the European style, alongside our American type prefabricated Combined transformers. Join us in experiencing our unparalleled commitment to excellence.
Boasting a treasure trove of industry experience, HY TRANSFORMER is unwavering in its 'top quality' philosophy, setting the benchmark for technology and quality in the transformer sector. Our products are integral across a multitude of applications, gracing power grids, power supply systems, coal mining, metallurgy, petroleum, chemical sectors, construction, ports, airports, railway transportation, and urban infrastructure. Each of our offerings proudly meets the highest standards, having been awarded ISO9001, ISO14001, OHSAS18001, and PCCC Energy-saving Product Certification, alongside a wealth of patent certifications. We are committed to keeping abreast of national industry standards, ensuring our management system remains exceptional. With a focus on sourcing only the finest materials, coupled with rigorous process controls and inspections, we guarantee meticulous production and unparalleled system efficiency. Renowned globally for our quality and technical prowess, our guiding principle is 'Staying with best quality, developing with high reputation.' Our 'double-win' strategy fosters alliances that are both lucrative and beneficial, driving the evolution of green electrical power worldwide. We warmly extend an invitation to you—embrace our products, partner with us, and together, let's illuminate a brighter, more sustainable tomorrow. Seize the chance to craft a beautiful future, hand in hand with HY TRANSFORMER.
Company's advantages
Certifications
Exhibition
Packaging & Shipping
FAQ
Q.Are you a trading company or a manufacturer?
A.We are a professional manufacturer of high and low voltage switchgear, substations, transformers, cable distribution boxes and various electrical equipment. We have accumulated 20 years of experience. Our factory is an outstanding supplier of China State Grid Corporation.
Q. Do you offer customized services?
A.We offer OEM/ODM services and can print your logo on the products. Our professional technical and quotation teams can provide satisfactory projects based on your drawings and parameters.
Q. What is your minimum order quantity?
A.Our minimum order quantity is one piece.
Q. How long is your delivery cycle?
A.This depends on your product requirements and quantity. Generally, it will take 5 to 10 working days.
Q. How do you deal with quality issues?
A.Please provide detailed photos of the quality issues. Our technical and quality inspection departments will conduct an analysis. We will offer a satisfactory solution within two days.
Q. What are your payment terms?
A.30% by wire transfer, 70% before shipment. Western Union remittance, letter of credit are also acceptable.