Power supply and its related installations are an important aspect of large commercial buildings. Considering that you will rent out the facility to multiple tenants, you cannot predict how much power each one of them will need. When occupancy begins, take note of any complaints from your tenants about power surges or the inability of the available supply to power up all their equipment. Such areas require a little boost to meet the power requirements. With a control transformer, you can regulate voltage efficiently and stabilise the voltage supplied to the building. The following are some of the commonly asked questions on control transformers to help you gain insight:
What is Vacuum Impregnation and Why is it Good for Your Transformer?
Transformers have motor coils and castings that play an important role in the production of voltage. They require vacuum impregnation for improved performance. This is a process in which layers of chemically stable fluids are used to coat the surfaces of the motor coils and castings (because of inherent perforations that they have). Vacuum pressure impregnation (VPI) helps to eliminate moisture trapped in the perforations on the castings, improving their electrical properties such as conductivity. It also prevents the build-up of other undesired elements like grime and dirt, which can significantly reduce the efficiency of the motor coils and castings. When choosing your transformer, ask the vendor if the coils have been treated using the VPI process.
What is Back Feeding a Transformer?
Generally, back feeding refers to the tendency of using your transformer in reverse. For instance, if you are using it as a step-up transformer to boost the voltage supplied to a certain part of the building, a reversal means that you will change the connection and use it as a step-down transformer to reduce voltage supply. Even though the practice can save you lots of money in terms of setting up multiple transformers, back feeding isn't good. It results in high levels of excitation for your transformer, making it had for other equipment like fuses and circuit breakers to coordinate power supply regulation. This can lead to serious damage and necessitate costly repairs.
What Design Elements Should You Look for On a Transformer?
First, go for a terminal block design that facilitates easy installation and hook up. You will have an easier time when you want to change the location of the transformer. Secondly, look out for coil ventilation that is fin-shaped (resembles grates). They are efficient at maximising the flow of air over the coils.