As we know, transformer is a device that transfer electrical energy from one to another circuit on the basis of Faraday's law of electromagnetic induction. They are used in various applications from power transmission to electronic devices. Transformers can be classified into two broad categories i.e. outdoor transformer and indoor transformer. In this blog post, we will discuss about the differences between outdoor transformer and indoor transformer, and their applications.

Outdoor Transformer and Indoor Transformer

As the name, outdoor transformer is mainly designed to be installed for outside buildings or in open spaces. Generally, these transformers are large and used to step up or step down voltage for power transmission and distribution. Outdoor transformer is mainly oil-filled, which helps to dissipate heat while its operation and also protect the windings from moisture  & environmental factors. On the other hand, indoor transformer is designed to be installed inside buildings or enclosed spaces. These transformers are typically smaller in size and are used for applications such as power supply for lighting and small electronic devices. They are also used to power motors and other machinery in industrial settings.

Which transformer is best or right?

The choice of the outdoor transformer and the indoor transformer depends on a variety of factors, including its application, power requirement, and environmental factor. Here are some points to keep in mind when choosing one transformer between them. The points are :-

Power Requirements: If you require or looking for high power loads, the outdoor transformer is the better choice. Outdoor transformer is designed to handle large power capacity than indoor transformer and suitable for power transmission and distribution. However, if you looking for a smaller power supply like for lighting or small electronic devices, the indoor transformer will be more suitable.

Environmental Factors: If you want a transformer and it will be exposed to harsh environmental conditions such as extreme temperature or humidity. At that point, outdoor transformer will be the better choice for you. Generally, outdoor transformers are designed to operate in harsh environment and also able to withstand wear and tear caused by environmental factor which makes outdoor transformer more superior. However, if you want to locate transformer in a climate controlled environment like room, the indoor transformer will be the best.

Benefits of the indoor transformer

Low noise: Indoor transformer produce less noise than outdoor transformer, making them suitable for indoor environment.

Compact size: Indoor transformer is generally smaller in size than outdoor transformer, making them ideal for small spaces.

Easy accessibility: Indoor transformer is located inside buildings, making them easily accessible for maintenance and repair work.

Safety: Indoor transformer is generally safer than outdoor transformers as it is installed in enclosed spaces and away from the public.

Drawbacks of the indoor transformer

Cost: Generally, indoor transformer is more expensive due to the additional protective casing and insulation required as compared to outdoor transformer of same capacity.

Capacity limitation: Indoor transformer has lower capacity limit as compared to outdoor transformer and making them unsuitable for high voltage power transmission.

Limited durability: Indoor transformer is not designed to withstand extreme weather conditions such as rain, heat due to these, its lifespan will be shorter.

Benefits of the outdoor transformer

High Capacity: Outdoor transformer is designed to handle large power and making them ideal for high voltage power transmission.

Durability: Outdoor transformer is built to withstand extreme weather conditions like rain, snow so that their weatherproof housing protects them from difficult weather condition and ensures their life long.

Easy maintenance: Since outdoor transformers are installed outside, maintenance and repairs are relatively easy and straightforward.

Cost effective: Outdoor transformers are generally less expensive than indoor transformers of the same capacity and can help reduce the cost of electricity transmission.

Drawbacks of the outdoor transformer

Noise: Outdoor transformers can produce noise, which can be a concern for nearby residents or businesses.

Accessibility: Outdoor transformers can be difficult to access in case of maintenance or repair work due to their location.

Safety: Outdoor transformers pose a risk of electrocution and should be installed away from public areas.

Hence, you can choose as your requirement which is the best for you.