Hey there! As a supplier of Epoxy Resin Cast Transformer Three, I'm super excited to dive into the technical parameters of these amazing transformers with you. These transformers are pretty popular in the electrical industry, and understanding their technical parameters is key to making the right choice for your electrical needs.
Let's start with the basics. Epoxy Resin Cast Transformer Three, as the name suggests, uses epoxy resin for casting. This type of casting offers great protection to the windings, making the transformer more reliable and durable.
1. Voltage Ratings
One of the most important technical parameters is the voltage rating. This includes the primary voltage and the secondary voltage. The primary voltage is the voltage at which the transformer receives electrical power, and the secondary voltage is the voltage at which it delivers power to the load.
For our products, we offer a wide range of voltage ratings. For example, the primary voltage can be anywhere from 10kV to 35kV, which is suitable for different power distribution systems. The secondary voltage, on the other hand, is usually 0.4kV for low - voltage applications in commercial and residential buildings. But we can also customize it according to your specific requirements. If you need a transformer for a special industrial application, we can design it with a different secondary voltage.
When you're choosing a transformer, make sure the voltage ratings match your power system. You don't want to end up with a transformer that can't handle the incoming voltage or can't provide the right voltage for your load. You can check out our SCB13 Three Phase Dry - type Power Transformer for some great options with different voltage ratings.
2. Power Rating
The power rating of a transformer is measured in kilovolt - amperes (kVA). It indicates the amount of electrical power the transformer can handle. We offer transformers with power ratings ranging from 100kVA to 2500kVA.
A smaller power rating transformer, say 100kVA, is suitable for small businesses or small residential areas. It can power things like lighting systems, small electrical appliances, and some office equipment. On the other hand, a 2500kVA transformer is more suitable for large industrial complexes, shopping malls, or big data centers. These high - power transformers can handle a large number of electrical loads simultaneously.
When deciding on the power rating, you need to consider the total electrical load you want to connect to the transformer. Calculate the power consumption of all your devices and choose a transformer with a power rating that can handle it comfortably. Our SCB Series 20kV Dry Type Transformer comes in different power ratings to meet your diverse needs.
3. Impedance
Impedance is another crucial parameter. It's expressed as a percentage and represents the opposition to the flow of alternating current in the transformer. A typical impedance value for our Epoxy Resin Cast Transformer Three is around 4% - 6%.
The impedance of a transformer affects its short - circuit current. A higher impedance value means lower short - circuit current, which can be beneficial in protecting the electrical system from damage during a short - circuit event. However, a very high impedance can also cause a voltage drop under normal operating conditions. So, we carefully design the impedance of our transformers to strike a balance between short - circuit protection and normal operation.
4. Cooling Method
The cooling method of a transformer is important for its performance and lifespan. Our Epoxy Resin Cast Transformer Three uses natural air cooling (AN) or forced air cooling (AF).
Natural air cooling is a simple and reliable method. The transformer dissipates heat into the surrounding air through convection. This method is suitable for small - to medium - sized transformers with relatively low power ratings. Forced air cooling, on the other hand, uses fans to blow air over the transformer windings, which increases the cooling efficiency. This is used for larger transformers or transformers that operate under heavy loads.
When choosing a cooling method, you need to consider the operating environment and the load requirements. If the transformer is installed in a well - ventilated area and has a relatively light load, natural air cooling might be sufficient. But if it's in a confined space or has a high - load operation, forced air cooling is a better option.
5. Insulation Class
The insulation class of a transformer determines its ability to withstand high temperatures. Our Epoxy Resin Cast Transformer Three usually has an insulation class of F or H.
Insulation class F can withstand a maximum temperature of 155°C, while insulation class H can handle up to 180°C. The higher the insulation class, the more heat the transformer can tolerate without getting damaged. This is especially important in applications where the transformer may be subjected to high - temperature conditions, such as in industrial environments or in areas with hot climates.
6. Noise Level
No one likes a noisy transformer. We understand that, so we've designed our Epoxy Resin Cast Transformer Three to have a low noise level. Generally, the noise level of our transformers is below 65dB(A) under normal operating conditions.


This low noise level is achieved through careful design of the core and winding structure. We use high - quality materials and advanced manufacturing processes to reduce the magnetic noise generated by the transformer. So, whether you install the transformer in a residential area, an office building, or a hospital, it won't cause any disturbance.
7. Protection Level
Our transformers come with a high protection level. They are designed to be dust - proof and moisture - proof. The epoxy resin casting provides a good seal for the windings, protecting them from environmental factors such as dust, moisture, and chemicals.
In addition, we also provide over - current protection and over - voltage protection. These protection features ensure the safe operation of the transformer and prevent damage to the electrical system.
8. Efficiency
Efficiency is an important factor when it comes to transformers. Our Epoxy Resin Cast Transformer Three has a high efficiency, usually above 98%. This means that only a small amount of electrical power is lost as heat during the transformation process.
A high - efficiency transformer not only saves energy but also reduces operating costs in the long run. So, if you're looking for an energy - efficient solution for your power distribution, our transformers are a great choice. You can explore our SCB Series Epoxy Resin Dry - Type Transformer to see some of our high - efficiency models.
In conclusion, when you're considering purchasing an Epoxy Resin Cast Transformer Three, these technical parameters are what you need to focus on. Each parameter plays a vital role in the performance, reliability, and safety of the transformer.
If you have any questions about these technical parameters or need help in choosing the right transformer for your application, don't hesitate to reach out to us. We're here to assist you in making the best decision for your electrical needs. Whether it's a small - scale project or a large - scale industrial application, we have the right solution for you. Contact us for more information and let's start a great business partnership!
References
- Electrical Power Transformer Engineering Handbook
- Transformer Design and Application Guide
