S13M Oil Immersed Transformer
Ultra-low no-load loss, high energy efficiency
Fully hermetically sealed, maintenance-free
Corrugated tank, no conservator required
Low noise operation
Excellent heat dissipation & insulation
Strong overload capacity
Long service life
Anti-leakage & anti-corrosion
Wide ambient temperature adaptability
ISO certified, stable performance
Customizable capacity & voltage
ONAN cooling system
1. Product Overview
The S13M series fully sealed oil-immersed transformer is an upgraded low-loss power distribution transformer developed based on traditional S11 and S12 series products, strictly manufactured in accordance with GB/T 6451 and IEC 60076 industry standards. Adopting advanced three-dimensional wound core structure and high-quality oriented cold-rolled silicon steel sheet materials, this product effectively solves the problems of unbalanced three-phase magnetic circuit, high no-load loss and loud operation noise of conventional laminated core transformers.
Different from ordinary open-type oil-immersed transformers, the S13M model features a fully sealed corrugated tank design without oil conservator. The internal transformer oil is completely isolated from external air and moisture, which avoids oil oxidation, deterioration and moisture ingress. This greatly improves the operation stability and service life of the equipment. Covering a rated capacity range from 30kVA to 2500kVA and adapting to 10kV medium-voltage power distribution network, it is a mainstream energy-saving and reliable power transformation equipment for industrial and civil power grids at this stage.
2. Core Product Parameters
The following are the standard core technical parameters of S13M series 10kV oil-immersed transformers, covering mainstream capacity models, which support conventional power grid matching and customized parameter adjustment according to user site demands:
Item | Standard Parameter |
Rated Capacity | 30kVA - 2500kVA (19 standard grades) |
Rated Voltage | High voltage: 10kV; Low voltage: 0.4kV |
Frequency | 50Hz / 60Hz (customizable) |
Vector Group | Dyn11 / Yyn0 (optional) |
Tap Changer Range | ±5%, ±2×2.5%, (-3+1)×2.5% (off-circuit tap changing) |
No-load Loss | 30% lower than S11 series transformers |
Load Loss | Optimized design, significantly reduced operating energy consumption |
Insulation Level | Meet national and IEC standard power grid insulation requirements |
Cooling Method | ONAN (Oil Natural Air Natural) |
Sealing Type | Fully sealed corrugated tank |
3. Product Features
3.1 Excellent Energy-saving Performance
The S13M transformer adopts high-grade oriented cold-rolled silicon steel sheets and a three-dimensional wound core process. The three core columns are arranged in an equilateral triangle, realizing a completely balanced three-phase magnetic circuit with no magnetic flux leakage dead zone. Compared with the traditional S11 series, its no-load loss is reduced by about 30%, and no-load current is decreased significantly. For long-term continuous operation scenarios such as urban power grids and industrial parks, it can effectively reduce daily power consumption and bring obvious energy-saving and cost-reducing benefits for users.
3.2 High Sealing and Strong Durability
The whole machine adopts a fully sealed integrated corrugated steel tank structure, canceling the traditional oil conservator structure. The internal insulating oil is completely isolated from the external atmospheric environment, which fundamentally prevents oil aging, oxidation and water absorption deterioration. The tank body has undergone anti-rust and anti-corrosion treatment, adapting to outdoor humid, dusty and other harsh environments. It effectively avoids oil leakage faults that are common in ordinary transformers, greatly extending the overall service life of the equipment.
3.3 Stable Operation and Strong Anti-interference Ability
The optimized winding structure and core assembly process make the transformer have strong short-circuit resistance and mechanical stability. During peak power consumption or sudden load fluctuation, it can maintain stable output voltage without frequent tripping or voltage deviation. Meanwhile, the overall operation noise is low, which will not cause noise pollution to the surrounding environment, meeting the environmental protection operation standards of residential areas and commercial zones.
3.4 Compact Structure and Easy Installation
Through structural optimization and lightweight design, the S13M transformer has a smaller volume and lighter weight than traditional transformers of the same capacity. It does not need to be equipped with complex auxiliary heat dissipation equipment, with simple on-site installation procedures. It can be installed in outdoor pole-mounted, box-type substation and indoor centralized arrangement modes, with strong site adaptability.
4. Application Scenarios
With its low loss, high stability and strong environmental adaptability, the S13M fully sealed oil-immersed transformer is widely used in various conventional and special power distribution scenarios, covering civil, commercial, industrial and municipal engineering fields:
• Urban and Rural Power Grid Renovation: It is the preferred energy-saving equipment for rural power grid upgrading, urban community power supply transformation and municipal distribution network construction, adapting to long-term stable power supply of residential loads.
• Industrial Production Sites: Suitable for factories, mining enterprises, industrial parks and other high-load continuous operation scenarios, effectively reducing industrial power consumption and ensuring stable power supply for production equipment.
• Commercial and Public Buildings: Applicable to shopping malls, office buildings, hospitals, schools and other public places with high power supply stability requirements, featuring low noise and low energy consumption to meet civilian environmental protection standards.
• Special Environmental Scenarios: Adaptable to outdoor open-air environments, coastal humid areas, suburban dusty areas and other harsh working conditions. It is also suitable for places with high fire protection requirements such as gas stations and drilling platforms.
• Infrastructure Engineering: Widely used in power supporting projects of airports, railway stations, highway service areas and new energy power generation supporting power distribution networks.
5. Product Maintenance and After-sales Service
5.1 Daily Maintenance Guidelines
The S13M fully sealed transformer is designed with low maintenance, and daily operation and maintenance are simpler than traditional products, with no need for frequent oil detection and replacement. Users only need to carry out regular routine inspections: check whether the tank body has oil leakage, whether the wiring terminal is loose or overheated, and keep the equipment surface clean and free of dust accumulation. For long-term operation equipment, it is recommended to conduct a comprehensive performance test every 2-3 years to detect insulation performance and loss parameters, ensuring long-term stable operation. Avoid long-term overload operation and direct lightning stroke impact during use, so as to prevent equipment damage.
5.2 After-sales Service Guarantee
We provide standardized full-cycle after-sales service for all S13M series transformers. The whole machine enjoys a 3-year warranty, and core components such as iron core and winding enjoy a 5-year quality guarantee. During the warranty period, any quality failure caused by non-human operation, we provide free maintenance, parts replacement and technical support services.
We have a professional after-sales technical team, providing 24-hour online consulting service and rapid on-site maintenance response. For equipment installation, commissioning and daily operation problems, we can provide one-on-one technical guidance. At the same time, we support customized product parameter adjustment and personalized scheme design according to user's actual engineering needs, and provide long-term spare parts supply and equipment maintenance services for subsequent operation of the product.
