A transformer functions depending upon the kind of core and windings that it comprises of. The core and windings are design in a way such that they can carry magnetic flux through the transformer. The core is generally round or rectangular in shape, depending upon which the coil is also round or rectangular. There could be other shapes too, but round and rectangular are the two most common shapes seen. So, how would you decide as to which of the two shapes is best for your transformer? Both round and rectangular shapes offer their own unique advantages. Let us learn about them in detail so that you can make an informed decision.
The basic shape
Round coils have a circular shape which can with stand radial forces while maintaining its shape. Rectangular coils on the other hand feature four sides and slightly rounded edges, which can handle radial forces less effectively than their circular counter parts. Thus, during times of short circuits, rectangular coils lose their shape, making round coils a better choice.
Air gaps
Another basic constructional difference is that round cores have slight air gaps between their magnetic flux carrying steel and the windings. On the contrary, rectangular cores fill this gap completely, resulting in slight inefficiencies. So, if you want an efficient transformer, it’s round coils for you.
During times of faults
When a through fault occurs, it is a type of fault that happens outside of the transformer zone. When such faults are not cleared by the downstream components, the transformer gets overloaded, which makes it unable to handle the sudden influx of electrical currents running through it. Round and rectangular coils are very different in their abilities to respond to such faults. Because rectangular coils lose their shape when encountering short circuit situations, while round coils retain their shape, it is clear that round coils tend to fare much better in through fault scenarios, as compared to rectangular coils.
So which coil is better?
We can clearly see how round coils offer many more benefits than rectangular coils, especially when it comes to handling short circuit incidents. Round coils feature fault protections that can substantially reduce the potential for damage due to any kinds of faults. Moreover, round coils almost always fare better because of their more uniform stress absorption. Hence, even though rectangular coils are easier and less expensive to be manufactured, round coils are still preferred over them.
Who to approach?
For any kinds of round or rectangular coiled transformers, you can always get in touch with Miracle Electronics, the most reliable and trustworthy transformer manufacturer in India. Here, you can get all kinds of transformers suited for your application. You can also have your transformers customized depending on your purpose and requirements. And, rest assured to get only the best because each transformer manufactured here is RoHS and REACH compliant.