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Transformers are an essential part of any electrical distribution system. From large infrastructure projects to smaller appliances, transformers are found in a surprisingly wide range of places.
It also means that there are a wide range of transformers. Whether you are looking for the distribution of power or to correctly harness it, you need just the right type of transformer. Without this, you will get an inefficient and damaged system.
Picking a transformer also means picking the right supplier. You could be looking for a manufacturer of a particular type of transformer or a supplier who also offers additional services like transformer repair. Here are some of the chief factors that you must consider when selecting one:
What’s the location?
The location of a transformer can range from LNG terminals to smaller transformers in a home. Transformers are often categorized according to their location because they can be affected by their environmental conditions.
Outdoor transformers, for instance, may need enclosure in the form of a shed where they can be protected from environmental factors or human tampering. If it is to be installed near a corrosive environment like saltwater, it may need an additional coating of paint.
Transformers are also categorized as per their exact location. If it is to be installed on a utility pole, you need a pole-mounted transformer, while a ground transformer means a pad-mounted transformer.
So, find out if the manufacturer or supplier stocks the kind of transformer you are looking for.
Why do you need it?
Not all transformers perform the same function. Its most common application is in the electricity supply infrastructure.
But transformers are also used with signal and audio devices, in medical equipment, and even for certain industrial purposes like liquefaction in oil and natural gas installations. The purpose will determine the type of transformer you need.
Type of transformer
There are many different types of transformers: power transformers, distribution transformers, instrument transformers, pulse transformers, audio transformers, IF transformers, and RF transformers.
These are broad categories, and many categories have a number of sub-types. So, it’s important to understand what each type is and what you require.
Similarly, you will have to decide between a dry and liquid-immersed transformer. It will depend on the working conditions and voltage ratings.
What is the load?
A transformer can service an instrument, a single household, or an entire community. Each transformer will have a different load-bearing capacity.
So, you need to find out how much your load is before selecting a transformer. The load and specific requirements will decide the size and design of the transformer.
Additional services
If you are looking for additional services like transformer repair, be clear about them. It is always a good idea to pick a supplier who also offers crucial services like repair.
Transformers are bound to break down when they are old, and usually this equates to an emergency. Repair services become critical. You should also look for services like oil testing and filtration.
Regular purification of transformer oil reduces the chances of breakdown and, hence, ensures a longer life for the transformer. These services are not just essential; they also ensure its longevity.
Specialization of the manufacturer/supplier
Whatever your requirement, you need to check with the manufacturer or supplier to see if they stock the right type. A supplier is likely to have a wide range, while some manufacturers may specialize in certain types of transformers.
Some manufacturers may also build transformers as per requirements. But keep in mind that the transformer repair, even if customized, should not be unnecessarily difficult.
Check the standards
Ultimately, any standard you select must comply with all the given standards. Check if it meets the given ISO standards at the very least.
It means that the manufacturer follows the right manufacturing practices and the transformer meets certain minimum working standards.
Services
What is your experience when dealing with the manufacturer/supplier? Are they quick to get back to you? Are they receptive to your special requests?
This gives you a good idea of their service standards and their promptness in attending to urgent requests. You can also check with past clients about their experience.
Budget
Like their size, transformers come in a wide range of prices. The bigger the load and the more precise your design, the higher the price. Determining the budget beforehand is important. You should also factor in operating costs, including maintenance costs like transformer repairs.
