The S11-M-30–3150/10 Series Three-Phase, Double-Winding, Oil-Immersed, No-Load Tap-Changing Distribution Transformers is a high-performance power distribution device designed for industrial, commercial and civil power supply systems. As a high-quality oil immersed distribution transformer, it integrates advanced technology, reliable structure and green environmental protection, providing stable and efficient power support for various power distribution scenarios, and becoming the preferred equipment in the field of power transmission and distribution.
This series of oil immersed distribution transformer is designed with energy conservation as the core, adhering to the concept of green development and realizing excellent energy-saving performance. The core is made of high-quality cold-rolled grain-oriented silicon steel sheets, adopting full diagonal seam lamination technology, which greatly reduces no-load loss and load loss, effectively reducing energy consumption during long-term operation. Meanwhile, the windings are made of high-purity oxygen-free copper, with reasonable structure design and excellent electrical conductivity, further improving energy utilization efficiency and fully reflecting the characteristics of Energy conservation and Highly efficient.
Stable operation is the core advantage of this series of transformers, which is guaranteed by its scientific structural design and strict quality control. The transformer adopts a fully sealed structure, which isolates the internal components from the air, effectively preventing oil deterioration and insulation aging, and avoiding the impact of external environment on the operation of the equipment. The high-voltage windings adopt a multi-layer cylindrical structure, and the low-voltage windings adopt a cylindrical or spiral structure according to the capacity, which has high mechanical strength and strong short-circuit resistance, ensuring that the transformer can operate stably under various working conditions such as overload and voltage fluctuation. In addition, the no-load tap-changing design allows flexible adjustment of voltage according to actual needs, further ensuring the stability of power supply and realizing long-term Stable operation without frequent maintenance.
While pursuing high efficiency and stability, this series of oil immersed distribution transformer also pays great attention to environmental protection, and is a typical Environmentally friendly power equipment. The transformer uses environmentally friendly insulating oil, which has high biodegradability, non-toxicity and low environmental pollution. Even in case of leakage, it will not cause serious damage to the surrounding soil and water sources. The surface of the product is treated by degreasing, derusting and phosphating, and sprayed with environment-friendly anti-corrosion paint, which is corrosion-resistant and durable, and meets the environmental protection requirements of various application scenarios. At the same time, the low-noise design reduces noise pollution during operation, creating a quiet and environmentally friendly working environment.
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30 | 6 | ±5% | 0.4 | Yyn0 | 100 | 630/600 | 4 | 2.3 | 42 | 140 | 80 | 290 | 725×460×900 | 350x400 |
50 | 130 | 910/870 | 2.0 | 42 | 201 | 100 | 400 | 780×570×930 | 400x450 | |||||
63 | 150 | 1090/1040 | 1.9 | 42 | 230 | 110 | 460 | 790×560×950 | 400x500 | |||||
80 | 180 | 1310/1250 | 1.9 | 42 | 260 | 120 | 500 | 810×650×970 | 400x500 | |||||
100 | 200 | 1580/1500 | 1.8 | 42 | 310 | 130 | 570 | 845×710×1010 | 400x550 | |||||
125 | 240 | 1890/1800 | 1.7 | 42 | 365 | 145 | 660 | 860×670×1080 | 400x550 | |||||
160 | 280 | 2310/2200 | 1.6 | 43 | 430 | 140 | 730 | 895×820×1070 | 450x600 | |||||
200 | 340 | 2730/2600 | 1.5 | 44 | 510 | 180 | 960 | 930×890×1130 | 450x600 | |||||
250 | 400 | 3200/3050 | 1.4 | 44 | 585 | 200 | 1010 | 955×930×1155 | 500x700 | |||||
315 | 480 | 3830/3650 | 1.4 | 44 | 658 | 240 | 1250 | 980×970×1150 | 550x550 | |||||
400 | 570 | 4520/4300 | 1.3 | 44 | 822 | 247 | 1380 | 1055×1060×1220 | 550x800 | |||||
500 | 680 | 5410/5150 | 1.2 | 48 | 950 | 285 | 1640 | 1420×970×1220 | 600x800 | |||||
630 | 810 | 6200 | 4.5 | 1.1 | 48 | 1100 | 330 | 1890 | 1480×990×1310 | 600x800 | ||||
800 | 980 | 7500 | 1.0 | 50 | 1350 | 390 | 2300 | 1635×1115×1440 | 660x950 | |||||
1000 | 1150 | 10300 | 1.0 | 50 | 1465 | 445 | 2620 | 1715×1180×1470 | 610x950 | |||||
1250 | 1360 | 12000 | 0.9 | 51 | 1715 | 525 | 3150 | 1750×1190×1500 | 750x950 | |||||
1600 | 1640 | 14500 | 0.8 | 51 | 2090 | 570 | 3670 | 1880×1320×1530 | 750x950 | |||||
2000 | 2020 | 17820 | 5.5 | 0.8 | 53 | 2545 | 770 | 4250 | 1930×1320×1640 | 800x1050 | ||||
2500 | 2380 | 20700 | 0.8 | 55 | 3200 | 970 | 4850 | 2060×1150×1850 | 1070x1070 | |||||
3150 | 2810 | 24300 | 0.7 | 57 | 3550 | 1230 | 5680 | 2250×1200×2060 | 1070x1070 | |||||
Our products can be widely used in industrial and mining enterprises, residential communities, commercial plazas, power grids and other fields to meet the power distribution needs of different scenarios. It complies with international and national relevant standards such as IEC and ISO 9001, and has passed strict quality inspection before leaving the factory, ensuring product quality and safety performance.
As a high-quality oil immersed distribution transformer, the S11-M-30–3150/10 series integrates Energy conservation, Stable operation, Highly efficient and Environmentally friendly advantages. It not only provides reliable power guarantee for the power distribution system, but also reduces energy consumption and environmental impact, conforming to the development trend of energy conservation and environmental protection in the global power industry. It is an ideal choice for modern power distribution projects pursuing high efficiency, stability and green development.
Our factory is in Shenyang City, Liaoning Province.We are a professional factory with more than 30 years experience in the field of High and low Voltage switchgears, Substation ,Transformers,Cable distribution box and various Electrical equipment. Our factory is the excellent supplier of State Grid Corporation od China. *We have more than 30 years to produce different kinds of transformers. *Our factory continue to insist to customers oriented and seek development of technology and science *Our products have high quality and the deep love of our customers *Our products have obtained international certifications such as ISO, CE, IEC certification. *We have a strong supply chain and after-sale service.
We offer OEM/ODM service. Our professional technical and quotation team can provice a satisfied project according to your drawing and parameters.
Our MOQ is 1 piece.
It depends on your product requirement and quantity.
Our core business focuses on the research, development, manufacturing, sales, and maintenance services of power equipment, including transformers, high and low voltage switchgear, and pre-assembled substations. We also provide power engineering construction, technical consulting, and self-operated import/export services, delivering one-stop power equipment solutions and supporting services to domestic and international clients. With years of deep involvement in the power equipment industry, we have accumulated extensive industry expertise.
The company was founded in 1993 and is located in Shenyang City, Liaoning Province. The specific address can be found on the “Contact Us” section of our official website, or you may contact customer service for detailed information.
Our company has obtained ISO 9001 Quality Management System Certification, CE Certification, IEC Certificate, ECM Certification, High-Tech Enterprise Certification, Green Environmental Protection Promotion Enterprise Certification, Environmental Management System Certification, Occupational Health and Safety Management System Certification, Quality Management System Certification, Smart Factory Certification, multiple invention patents, and utility model patents. All operations comply with relevant industry standards in China and target export markets. Certification documents are available for client verification.
Our products/services are primarily categorized into three main groups: New energy power equipment: such as wind and photovoltaic power generation supporting equipment; and services including: smart construction and maintenance, power construction, installation, and maintenance services, and smart construction and maintenance, power construction, installation, and maintenance services. For specific details, please refer to the “Products/Services” section on our official website or contact a sales consultant for a detailed introduction.
Product/service pricing is determined through comprehensive calculation based on product specifications, material standards, service duration, customization requirements, purchase volume, export logistics costs, and other factors. For a specific quote, please contact our sales consultant. After providing your detailed requirements, we will issue a comprehensive quotation proposal. Our pricing is transparent with no hidden fees.
Yes. For clients requiring customization, we can assign a dedicated team to develop a bespoke solution based on your specific needs. This includes: - Electrical equipment functionality, appearance, and specifications - International trade service processes, logistics methods, and customs clearance solutions - Service content, execution procedures, and timelines We ensure all personalized requirements are met.
You may learn more through the following methods: ① View detailed descriptions in the “Products/Services” section of our official website; ② Contact customer service to obtain product manuals; ③ Schedule an in-person demonstration or online presentation through customer service, where professionals will address your questions; ④ Contact customer service to obtain multilingual product materials and export compliance documentation.
The core differences lie in energy efficiency ratings and no-load losses. For industrial parks and scenarios with long-term full-load operation, choose the S20 series for sustained energy savings. For rural grids and scenarios with significant load fluctuations, the S13 series offers better cost-effectiveness. Specific selection should consider on-site conditions, capacity requirements, and installation environments. We provide complimentary selection consultation services.
Our products comply with internationally recognized standards and meet local market access requirements worldwide. We hold certifications such as ISO 9001 and can provide all necessary compliance qualifications and certification documents required by the destination country/region to ensure local customs clearance and usage requirements are met. For specific details, please contact our customer service or sales representatives.
We provide full-process technical support. Nationwide logistics distribution includes wooden crate packaging for impact protection. Export products use packaging compliant with international shipping standards to ensure cargo safety. Installation support includes remote video guidance + printed manuals with one-on-one wiring assistance. For complex projects, customized installation services can be arranged based on project requirements.
The procurement process primarily consists of four steps: ① You submit your procurement requirements (specifications, quantity, delivery time, delivery address); ② We issue a quotation and contract; both parties sign the contract after confirming its accuracy; ③ Payment is made according to the contract terms; ④ We deliver the products/provide the services as specified in the contract and complete the acceptance process.
Yes. For bulk purchasing clients, we offer corresponding volume discounts based on purchase quantity, cooperation duration, and other factors. Specific discount levels can be negotiated with our sales consultants.
We provide full-process foreign trade customs declaration services. The standard procedure is as follows: ① The client provides the Proforma Invoice (PI), packing list, and contract; ② Our company prepares the complete set of documents, including the customs declaration form and commodity inspection form; ③ We handle the declaration; ④ After clearance, we arrange sea/air freight. Supported trade terms include: FOB, CIF, EXW, DAP, etc., which can be flexibly selected based on the client's purchasing preferences.
We support small-batch trial orders and sample requests. ① Sample Scope: Standard accessories and small prototypes are available. ② Delivery Methods: Domestic shipments via standard logistics/courier; international shipments via FedEx/EMS. ③ Cost Details: Samples are free of charge; international shipping fees are borne by the customer.
To reduce the impact of exchange rate fluctuations, it is recommended to adopt multi-currency settlement. Additionally, based on the collaboration cycle, parties may negotiate fixed exchange rate settlement arrangements to minimize the effect of exchange rate volatility on their partnership.
You may submit feedback through the following channels: ① Send an email to tt@ttdl.cn. We will respond within 24 hours. ② Contact your assigned sales representative or customer service agent for assistance with reporting and resolution.
Yes. For customers purchasing our products or utilizing our collaborative services, we offer technical training and operational guidance to help them quickly master product usage and service integration techniques. Should you require technical support afterward, you may contact our technical team at any time. We will respond promptly to resolve any technical issues.
① Email or online customer service inquiries: Response within 24 hours; ② Contact your dedicated sales representative: Receive immediate response and expedited handling; ③ We will rapidly diagnose the cause of the failure and provide solutions through remote communication, operational parameters, and failure symptoms; ④ For on-site service, we will coordinate the optimal technical support plan based on the project location and actual circumstances.
Product returns and exchanges are handled according to the terms of the contract signed by both parties. Customers may submit requests through our after-sales service or sales representatives, providing order details, product information, and relevant explanations. We will review and process the request based on contractual agreements and actual circumstances. Note: Customized products and equipment that have been installed or used generally cannot be returned or exchanged; however, repair and technical support services are available. For products involving export, compliance with international trade, logistics, and customs clearance regulations is also required.
You may contact your assigned sales consultant or customer service representative, provide your order details, and inquire about the real-time progress. For export orders, you can simultaneously track customs clearance and logistics updates. We will also regularly update you on order production, delivery, or service execution to ensure you stay informed.
Specific job openings, qualification requirements, and related details are subject to the information published on the company's official website. Please visit the website for further details.
You may contact customer service online or send an email to tt@ttdl.cn. We will respond within 24 hours.
Our company strictly adheres to national privacy protection laws and regulations, establishing a comprehensive customer information protection system. All customer information is used solely for business coordination and service provision. We will never disclose or sell customer information to third parties without authorization, ensuring the security of customer data. For international trade clients, we additionally comply with privacy protection regulations of the target markets.
We strictly adhere to the laws and regulations of target markets. Our production processes comply with the ISO 14001 Environmental Management System; our products meet the RoHS environmental directive; and overseas projects implement local labor standards, ensuring compliant operations and safeguarding clients from compliance risks in their local business activities.
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