High-altitude oil-immersed transformer
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Amorphous alloy oil-immersed transformer
Dry-type transformer
Transformer core
Oil-immersed transformer
Box-type substation
High and low voltage power distribution cabinets
Silicon steel
Transformers convert grid voltage to the levels required by systems or loads, enabling the transmission and distribution of electrical energy. The S(B)H-M series amorphous alloy oil-immersed transformer is a type of energy-efficient power distribution equipment; its energy-saving performance stems primarily from the use of a novel iron-based amorphous alloy material characterized by excellent soft magnetic properties.
Product Details
DETAIL
Transformers convert grid voltage to the levels required by systems or loads, enabling the transmission and distribution of electrical energy. The S(B)H-M series amorphous alloy oil-immersed transformer is an energy-efficient distribution unit; its energy-saving performance stems primarily from the use of a novel iron-based amorphous alloy material characterized by superior soft magnetic properties.
The products comply with national standards GB1094 ("Power Transformers") and GB/T25446-2010 ("Technical Parameters and Requirements for Oil-Immersed Amorphous Alloy Core Distribution Transformers").
Product Features
Amorphous alloy is a novel strip material; lacking a crystalline structure, it exhibits low magnetization power and high resistivity, resulting in minimal eddy-current losses.
Utilizing this material for the core enables the production of a new type of energy-efficient transformer, with no-load losses reduced by over 75% compared to standard S11 distribution transformers. The core features a wound, three-phase, five-limb structure with a rectangular cross-section.
The coils are rectangular in shape; the high-voltage winding uses acetal-enameled wire, while the low-voltage winding employs flat wire or copper foil, thereby enhancing the transformer's short-circuit withstand capability.
The transformer utilizes a Dyn11 connection group, which mitigates the impact of high-order harmonics and provides strong resistance to unbalanced loads, significantly improving power supply quality.
Vacuum oil filling is employed to completely eliminate air bubbles within the coils, ensuring stable insulation performance. The traditional oil conservator is eliminated; instead, corrugated or fin-type radiators serve as cooling components. A gas cushion atop the oil tank compresses as the transformer oil expands, isolating the oil from the atmosphere. This prevents oil degradation and insulation moisture absorption, enhances operational reliability, and ensures maintenance-free operation under normal conditions.
Standard Parameters
SPECIFICATIONS
| RatedCapacity(kVA) | Level 1 (Type 25) | Level 2 (Type 21) | Level 3 (Type 15) | Short-circuit Impedance % | ||||||
| Electrical Steel Strip | Electrical Steel Strip | Electrical Steel Strip | ||||||||
| No-load Loss (W) |
Load Loss (W) | No-load Loss (W) |
Load Loss (W) | No-load Loss (W) |
Load Loss (W) | |||||
| Dyn11/Yzn11 | Yyno | Dyn11/Yzn11 | Yyno | Dyn11/Yzn11 | Yyno | |||||
| 30 | 25 | 510 | 480 | 33 | 535 | 510 | 33 | 630 | 600 | 4.0 |
| 50 | 35 | 735 | 700 | 43 | 780 | 745 | 43 | 910 | 870 | |
| 63 | 40 | 880 | 840 | 50 | 930 | 890 | 50 | 1090 | 1040 | |
| 80 | 50 | 1060 | 1010 | 60 | 1120 | 1070 | 60 | 1310 | 1250 | |
| 100 | 60 | 1270 | 1215 | 75 | 1350 | 1285 | 75 | 1580 | 1500 | |
| 125 | 70 | 1530 | 1450 | 85 | 1615 | 1540 | 85 | 1890 | 1800 | |
| 160 | 80 | 1870 | 1780 | 100 | 1975 | 1880 | 100 | 2310 | 2200 | |
| 200 | 95 | 2210 | 2100 | 120 | 2330 | 2225 | 120 | 2730 | 2600 | |
| 250 | 110 | 2590 | 2470 | 140 | 2735 | 2610 | 140 | 3200 | 3050 | |
| 315 | 135 | 3100 | 2950 | 170 | 3275 | 3120 | 170 | 3830 | 3650 | |
| 400 | 160 | 3660 | 3480 | 200 | 3865 | 3675 | 200 | 4520 | 4300 | |
| 500 | 190 | 4380 | 4170 | 240 | 4625 | 4400 | 240 | 5410 | 5150 | |
| 630 | 250 | 5020 | 320 | 5300 | 320 | 6200 | 4.5 | |||
| 800 | 300 | 6075 | 380 | 6415 | 380 | 7500 | ||||
| 1000 | 360 | 8340 | 450 | 8800 | 450 | 10300 | ||||
| 1250 | 425 | 9720 | 530 | 10260 | 530 | 12000 | ||||
| 1600 | 500 | 11745 | 630 | 12400 | 630 | 14500 | ||||
| 2000 | 550 | 14000 | 710 | 14800 | 720 | 18300 | 5.0 | |||
| 2500 | 670 | 15450 | 860 | 16300 | 865 | 21200 | ||||
Industry Solutions
Applications · Empowering Industries
SCENE 01
01 Power Engineering
Hebei Qishun Power Equipment Co., Ltd. transmission and distribution equipment is widely used in State Grid, local power projects, and urban distribution systems, providing stable and reliable power support for transmission, transformation, and distribution projects. The products feature stable operation, low loss, and high safety for long-term continuous operation.
1/5
SCENE 02
02 New Energy
With advanced green technology, Qishun Power provides photovoltaic and wind power prefabricated substations with high efficiency, harmonic resistance, and strong environmental adaptability. Our equipment fits green power systems, integrates with solar, wind, and supporting transmission systems, and improves power stability for greener, smarter new energy projects.
2/5
SCENE 03
03 Industrial Manufacturing
Backed by lean manufacturing across the full chain, Qishun Power provides heavy-duty industrial transformers and distribution equipment with strong durability, stable heat dissipation, and reliable supply. They match high-load, continuous operation and support stable production in complex industrial workshops.
3/5
SCENE 04
04 Infrastructure
With standardized mass production, Qishun Power provides transformers and integrated distribution solutions with stable structure, strong adaptability, and low maintenance. Built to strict engineering standards, they fit airports, high-speed rail, municipal projects, and large industrial parks for stable, long-lasting operation.
4/5
SCENE 05
05 Overseas Projects
With an international custom development system, Qishun Power provides transmission and distribution equipment matched to multi-country voltage standards and strict certification requirements. Our globally adaptable, cost-effective quality supports overseas industrial parks, cross-border power construction, and international new energy projects, with professional export and logistics service.
5/5
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FAQ
Are you a factory or a trading company?
Manufacturing Facility. Headquartered in Gaocheng District, Shijiazhuang City, Hebei Province, the company operates a 20,000-square-meter standardized workshop. Integrating R&D, design, production, and foreign trade, it maintains control over quality and costs right from the source.
Is product customization (OEM/ODM) available?
We can accommodate this. Our experienced technical team offers precise customization in strict accordance with your technical drawings, local grid standards (such as IEC and IEEE/ANSI), and specific environmental requirements.
How long is the warranty period? What kind of after-sales support is provided?
All units undergo rigorous testing before leaving the factory. We offer a warranty period of 12 to 24 months (depending on the model), along with lifetime 24/7 remote technical support and online troubleshooting.
What advantages do your transformer cores and silicon steel offer?
We independently process high-performance silicon steel and manufacture transformer cores in-house. Controlling the process at the source ensures excellent magnetic permeability, significantly reducing transformer no-load losses (delivering superior energy efficiency) and operating noise.
How do you choose between dry-type and oil-immersed transformers?
Dry-type (including open-ventilated): Air-cooled, flame-retardant, and maintenance-free; suitable for indoor environments with high safety requirements, such as shopping malls, hospitals, and subways. Oil-immersed: Cooled by insulating oil, offering excellent heat dissipation and strong overload capacity; suitable for industrial and mining enterprises, heavy-industry power grids, and harsh outdoor environments—offering the best cost-performance ratio.
Are box-type substations suitable for outdoor new energy projects such as photovoltaic power generation?
They are ideally suited for the application. Our PV combined substations and box-type substations feature high IP ratings—offering protection against weather, dust, and corrosion—along with excellent thermal insulation, and are specifically designed for harsh outdoor environments and integration with new energy power grids.
What are the safety standards for high- and low-voltage power distribution cabinets?
Designed and manufactured in strict accordance with international standards such as IEC. Equipped with reliable mechanical interlocking, arc-flash protection, and intelligent monitoring modules to ensure operator safety and stable system operation.
How should heavy equipment be packaged for long-distance ocean transport?
Sturdy, seaworthy packaging is used. The equipment is securely fastened to steel or heavy-duty wooden pallets, wrapped internally in moisture-proof vacuum film, and protected by an export-grade wooden crate; professional reinforcement during packing ensures full protection against impact during transit.
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Xiaochangan Industrial Park, Chang'an Town, Gaocheng District, Shijiazhuang City, Hebei Province
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