The transformer is one of the oldest inventions in the field of electrical engineering. The purpose and functioning of transformers are to transfer current/power from one circuit to another without changing its attributes like phase, and frequency. This equipment has evolved as the most crucial component of every electrical setup. The general function of a transformer is to step up (increase) or step down (decrease) the voltage/current in transmission. It primarily consists of three basic components – the core, primary winding, and secondary winding. Other than the basic components, every transformer’s design and purpose defines what type and quality of other components will be used for its construction.
In the present scenario, you can find or customize the transformer according to your needs, specifications, and purpose. However, based on different purposes like generation, distribution, and transmission, you can find a variety of transformers like a step up & step down transformer, power transformer, distribution transformer, single & three-phase transformer, etc.
This blog exhibits details on three types of transformers, i.e., power, distribution, and three-phase transformers.
2. Distribution Transformers – In general, the distribution transformers are used to transport/distribute the power from generating stations to remote locations. They are used in the distribution network for voltage transmission in the system to step down the voltage level and it is utilized by the end consumer. This transformer is used to distribute voltage in industrial (voltage less than 33KV) as well as domestic (voltage range of 440V – 220V) electrical setups. In its construction, the primary coil is covered with the enamel-coated wire of aluminum or copper. A thick ribbon of copper or aluminum is used to make secondary winding of the transformer which carries a high current of low voltage. A resin-packed paper and oil is used for insulation purposes.
3. Three-Phase Transformers – A three-phase transformer is installed to suffice the generation, distribution, and transmission needs of huge power generation plants, industrial, and commercial establishments. It generates power on a large scale and based on the needs of industries, the step-up and step-down transformers are used. The construction of three-phase transformers can be done in two ways. First, connect 3 similar single-phase transformer's primary windings to make them one & secondary phase windings to make them a single connection. This is also known as a bank of three single-phase transformers. The second way in developing an entire three-phase transformer using a single core. It is an economical method of construction as it will have low material requirements. And, a three-phase transformer transfers AC power instead of DC power and is simple to construct.
Transformers are a crucial component of any electrical setup, and correct knowledge guides let the purchase go in the right direction.