10kV S13 Series Oil Immersed Distribution Transformer - Low Loss & Eco-friendly

Environmental protection and energy saving: As a national key promoted green energy-saving product for power grid transformation, the S13 series adopts low-pollution insulating oil (complies with IEC 60296 standard) and optimized iron core structure, with no-load loss 30% lower than S11 series and load loss reduced by 25%, annual energy saving up to 800kWh for 1000kVA capacity.

The 10KV S13 oil-immersed transformer operates based on the principle of electromagnetic induction. When alternating current passes through the primary winding (main coil), an alternating magnetic field is generated in the iron core. This magnetic field penetrates the secondary winding (secondary coil), thereby inducing an electromotive force in the secondary winding. When the secondary winding is connected to a load, a current is formed to complete voltage conversion and power transmission. The optimized iron core and winding structure of the S13 series enhances magnetic field utilization efficiency, reducing energy loss during power transmission.

1. Low Loss & High Energy Efficiency

Adopts optimized iron core material and winding process, with no-load loss 30% lower than S11 series and load loss reduced by 25%. For a 1000kVA capacity transformer, the annual energy saving can reach 800kWh, meeting national Class 1 energy efficiency standards and reducing operational costs for users.

2. Strong Overload Capacity

Unique structural design and high-quality silicon steel sheet material enable the transformer to operate at 120% overload for 2 hours, effectively coping with instantaneous or periodic load peaks in industrial and mining enterprises, high-rise buildings and other scenarios.

3. Low Noise & Environmental Protection

The oil-immersed insulation structure makes the transformer oil penetrate into the silicon steel sheet layer, playing a buffering role. The operating noise is ≤55dB (for 1000kVA), which is far lower than the national standard, suitable for residential areas, commercial streets and other noise-sensitive environments. At the same time, it uses low-pollution insulating oil, which is environmentally friendly and pollution-free.

4. Fully Sealed & Long Service Life

The fully sealed structure prevents oil leakage and moisture intrusion, avoiding internal component corrosion. The service life is extended to 20 years, which is twice that of ordinary transformers, reducing the frequency of replacement and maintenance.

5. Compact Structure & Small Footprint

Reasonable layout and optimized structural design make the product more compact, reducing the occupied area by 15% compared with similar products, which is convenient for installation in narrow spaces such as substations and industrial workshops.

The 10KV S13 series oil-immersed distribution transformer is suitable for 10kV/12kV/20kV/24kV/35kV power distribution systems, with wide applicability in residential areas, commercial streets, industrial and mining enterprises, urban and rural power grid transformation, urban rail transit and other fields.

1. Urban and Rural Power Grid Transformation

As a key promoted product for national power grid transformation, it is widely used in urban and rural power grid upgrading projects. Case: 500 sets of 10KV 1000kVA S13 transformers were adopted in Xi'an urban power grid transformation, reducing regional power loss by 35% and saving 400,000kWh of electricity annually. It is also suitable for combined transformers and prefabricated transformers in substations, improving the efficiency and stability of the power grid.

2. High-rise Buildings

High-rise buildings have special power supply needs and large power loads, requiring high power supply quality and stability. The S13 series has strong overload capacity, which can cope with instantaneous load peaks caused by centralized use of electrical appliances. At the same time, its low noise characteristics ensure a quiet living environment for residents. It is widely used in high-end residential buildings, commercial complexes and office buildings.

3. Industrial and Mining Enterprises

The production equipment of industrial and mining enterprises consumes a lot of power and has large power fluctuations during operation. The S13 series can be used as a voltage stabilizing device to effectively solve the problems of power and voltage fluctuations. Case: Shaanxi Coal Mine adopted 35KV 1600kVA S13 transformers, which meet the high-load and high-stability requirements of mining equipment and ensure 24/7 continuous operation.

4. Urban Rail Transit

Urban rail transit has high requirements for power supply, requiring transformers to withstand high loads and high frequencies in extreme environments. The S13 series has excellent insulation performance and stable operating characteristics, which can meet the power supply needs of urban rail transit equipment such as subways and light rail, ensuring the safe and smooth operation of rail transit.

Temperature and Humidity: Suitable for ambient temperatures of -25°C to 40°C (outdoor use) and -5°C to 40°C (indoor use). The maximum daily average temperature is 30°C, the maximum annual average temperature is 20°C, and the relative humidity does not exceed 90% (at 25°C).

Altitude: The standard operating altitude is ≤1000 meters. For altitudes exceeding 1000 meters, custom design is provided to optimize insulation and cooling structure, ensuring stable operation.

Fire Safety: For transformers with an oil volume of more than 2500kg, the fire separation distance from oil-filled electrical devices with a volume of 600kg-2500kg shall not be less than 5 meters. If the adjacent installation distance does not meet the requirements, a fire wall or fireproof water curtain shall be installed.

Power Supply Voltage: The power supply voltage waveform should be similar to a sine wave, and the three-phase power supply voltage should be approximately symmetrical to avoid adverse effects on the transformer.

S13-M series fully sealed 10KV (12KV) (20KV) (24KV) (35KV) series three-phase oil-immersed power transformers
Product Overview:
- Low loss, 30% lower than S11 type transformer loss
- Low no-load current and no-load loss.
- Unique structural design and material selection. S13 transformer has strong overload capacity
- Compact structure and small footprint: The structural design of S13 transformer makes the product structure more compact and the layout more reasonable.
- Environmental protection and energy saving: S13 transformer is a green energy-saving equipment that is beneficial to environmental protection and is the latest product promoted and used in urban and rural power grid technical transformation projects.
- In summary, S13 transformer has been widely used in the power industry for its low loss, low noise, strong overload capacity, compact structure and environmental protection and energy saving.
- Mainly used in distribution networks, industrial and mining enterprises and civil building power supply and distribution systems.

Q: What is the difference between S13 and S11 oil immersed transformers?

A: Compared with the S11 series, the S13 series has 30% lower no-load loss and 25% lower load loss, with stronger overload capacity (120% overload for 2 hours) and longer service life (20 years vs 10 years). It is more suitable for green energy-saving projects and power grid transformation with high energy efficiency requirements.

Q: Can the 10KV S13 transformer be customized for special environments?

A: Yes. We provide custom design for special scenarios such as high altitude (exceeding 1000 meters), high humidity, and extreme temperature. We optimize the insulation material, cooling structure and sealing performance to ensure the transformer adapts to the operating environment.

Q: What certifications does the S13 oil immersed transformer have?

A: It has passed ISO9001 quality management system certification, ISO14001 environmental management system certification, OHSAS18001 occupational health and safety management system certification, and complies with international standards such as IEC 60296 (insulating oil) and GB/T 1094.1 (transformer general standard).

Q: What is the warranty period of the S13 series transformer?

A: We provide a warranty period of ≥2 years. During the warranty period, if there is a quality problem caused by non-human factors, we will provide free maintenance, replacement of parts and other services. We also have a professional after-sales team to provide technical support.

Q: What is the minimum order quantity (MOQ) for the S13 transformer?

A: For standard configuration products with small capacity (≤500kVA), the MOQ is 1000 sets; for large capacity products (>500kVA) or customized products, the MOQ is 1 set. We welcome small trial orders.

Table 1 10KV class 30KVA~2500KVA non-excitation voltage regulating distribution transformer

Table 2 20KV Class 50KVA~2500KVA Non-excitation Voltage Regulating Distribution Transformer

Table 3 35KV class 50KVA~2500KVA non-excitation voltage regulating distribution transformer

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