Isolation transformers are used to transfer electrical power from a source of alternating current power to a device, where the powered device is isolated from the power source for safety measures. They provide galvanic isolation, which is the principle of isolating different sections of electrical systems to prevent current flow. Here, there is no direct conduction path but, the energy is still exchanged between sections by capacitance, induction or electromagnetic waves. However, these transformers block the transmission of the DC component in signals from one circuit to another, while letting the AC components to pass.
We all know what the famous ‘W’s are – Who? What? Why? When? Where? Which? Do you know that most of these Ws can be asked in the case of transformers too? Here are the questions that almost every individual dealing with transformers would want to have the answers to.
With the fuel costs rising and power cut offs becoming more widespread throughout the country, the focus has shifted majorly towards power generation and distribution. It has also become highly important to conserve energy and invest in energy efficient products of all types. This is the reason why power transformers have become a very important part of everyday life today because of its constant energy throughout the day. If even a single unit goes off for a short time period, multiple households and commercial spaces are thrown into darkness, which results in a considerable economic loss. However, distribution transformers that are more than 30 years old can waste between 60 to 80 billion kWh every year! When such transformers are replaced with newer and better designed transformers, they can yield annual energy savings up to 100 crores of rupees!
Every country has its own varying alternating current. Generally, most of the world operates on 220-240 VAC (Volts Alternating Current). North America is one country that operates on 110-120 VAC. When you travel from one country to another, if you are to experience a voltage fluctuation, you need to be well prepared to convert the voltage to match your appliance’s voltage requirement. If you fail to do so, you could severely damage your appliances.