S13 Distribution Transformer

The S13 distribution transformer has made many improvements based on the traditional structure and mature technology. For instance, it has enhanced the effective support at the coil ends, making it more capable of withstanding short-circuit currents.

The product has changed the helical coil to one with longitudinal oil channels, which improves the heat dissipation inside the transformer. At the same time, new lifting structures and positioning structures for the transformer body have been adopted on the outside, ensuring greater reliability during long-distance transportation and operation.

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High-quality materials

To create a highly reliable S13 distribution transformer, Yibaling Factory strictly controls the materials from the very beginning:

Firstly, the winding conductors use oxygen-free copper wire with extremely low resistivity, which is then subjected to precise drawing and polishing processes to ensure a smooth surface without burrs. This physically reduces eddy current losses and skin effect, thereby significantly lowering the load losses.

The core uses high magnetic permeability and low-loss high-quality cold-rolled oriented silicon steel sheets. Through optimized magnetic circuit design, the no-load losses are reduced to the industry-leading level. In the sealing process, we select special rubber materials that are resistant to oil, high temperatures, and aging, ensuring the elasticity and toughness of the sealing components during long-term operation and eliminating the risk of leakage.

For oil-immersed models, we inject transformer oil that has undergone multi-stage vacuum oil filtration and precise filtration treatment. Its moisture content, gas content, and particle size of impurities are far superior to national standards, ensuring insulation strength and heat dissipation efficiency.

Throughout the process, all core raw materials are subject to strict review and traceability management in the full chain from supplier qualifications, incoming inspection to the production process in accordance with Chinese national standards and ISO9000 quality management system, ensuring that each S13 distribution transformer is built on a solid and consistent material foundation.

Working Condition

The standard operating environment for the S13 distribution transformer must meet the design boundaries for its outdoor oil-immersed equipment.

1. Geographical Location

The standard design is applicable to areas with an altitude of 1000 meters or below.

If the altitude exceeds this limit, the capacity and insulation must be reduced according to the de-rating requirements.

2. Climatic Conditions

It should comply with the following:

Maximum operating temperature: does not exceed +40℃

Average temperature of the hottest month: does not exceed +30℃

Minimum temperature: not lower than -25℃ (for outdoor type)

Relative humidity of the air: does not exceed 95% at 25℃ to avoid excessive condensation.

3. Installation Site

When installing, it should be a well-ventilated outdoor space without severe obstructions, ensuring natural cooling; the foundation must be solid and flat, with a moderate slope towards the oil reservoir side.

The S13 distribution transformer is suitable for normal pollution level environments. In coastal, industrial areas, etc., where there are salt fog, corrosive gases or heavy pollution, it is necessary to provide additional explanations to enhance the external insulation and anti-corrosion design.

It is strictly prohibited to use it in flammable and explosive environments, and it should avoid long-term exposure to extreme vibration conditions.

How to Choose a S13 Distribution Transformer？

1. When purchasing the S13 distribution transformer, understanding the rated values are always the key to checking the load characteristics.

The load characteristics include the load type and voltage fluctuations. In terms of the load type, it can be intermittent load or continuous load.

2. The voltage ratio depends on the load characteristics and application. It is calculated by taking the ratio of the primary voltage to the secondary voltage or the high voltage to the low voltage.

The size of the S13 distribution transformer also depends on the voltage ratio. The larger the voltage ratio, the larger the volume will be, as the number of turns in the primary winding increases.

3. When choosing the S13 distribution transformer, efficiency must be paid attention to. The efficient S13 transformer helps reduce power loss by correctly converting voltage.

This not only helps save energy but also helps save costs. The equipment can only work efficiently when the quality of the used parts and components is the best.

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