The transformer is very expensive and bulky power system equipment. It operates for 24 hours a day and feeds the load. Sometimes the situation can occur when the load on the transformer suddenly increases above its rated capacity. When this situation occurs, the transformer will overload and overheat and will damage the insulation of the transformer, which will result in an interruption of the supply. The best solution to avoid overloading is to operate the number of transformers in parallel. It is the same as the parallel operation of transformers where the number of transformers shares the load of the system. In the suggested approach, the second transformer will share the load when the load on the first transformer rises above its rated capacity. The main objective of the work is to provide an uninterrupted power supply to energy consumers. By implementing this scheme you can avoid the problem of supply interruption due to overload or overheating of the transformer.
Energy travels from the power plant to the house through an amazing system called the power distribution network. In order to be useful in a home or business, it leaves the transmission network and is reduced to the distribution network. This can occur in several phases. The place where the conversion from "transmission" to "distribution" takes place is in a power substation. It has transformers that scale transmission voltages (tens or hundreds of thousands of volts) to distribution voltages (typically less than 10,000 volts). It has a "bus" that can divide the distribution power in multiple directions. It often has breakers and switches so that the substation can be disconnected from the transmission network or separate distribution lines can be disconnected from the substation when needed. The transformer is the vital component in the electric power transmission and distribution system. The problem of overloads, voltage variation and heating effects is very common. It takes a lot of time for your repair and also involves lots of expenses. This work tries to protect the transformer under overload conditions. Due to an overload, efficiency is reduced and the secondary winding overheats or burns. Therefore, by reducing the additional load, the transformer can be protected. This can be done by operating another transformer in parallel with the main transformer through the comparator and the shift relay. The comparator compares the load of the first transformer with a reference value. When the load exceeds the reference value, the second transformer will automatically connect in parallel with the first transformer and share the additional load. Therefore, two transformers work efficiently under overload conditions and damage can be prevented. For household appliances, commercial and industrial loads, the transmitted voltage must be reduced to one level of distribution. This can occur in several phases. In substations, the voltage is reduced from the transmission level (in tens or hundreds of thousands of volts) to the distribution level (typically less than 10,000 volts).