What is a Shell Type Transformer? Basically a shell type transformer is one in which the core of the transformer surrounds the windings. And in this type of transformer, the core surrounds the primary and secondary windings. Therefore, they are called shell type transformers. Both the windings are wound on the central limb of the core. As you can see, the circuit has two flux paths. The central organ carries the entire magnetic flux; and the other two side limbs carry half of the flow. HV and LV winding mounting is same as discussed earlier in core type transformer. In the second image below, the red winding is the primary and the green winding is the secondary.

What is a core type transformer? Basically a core type transformer is one in which primary and secondary windings surround the transformer core. And transformers have two types of windings basically primary and secondary. The voltage is transferred from the primary to the secondary winding through the magnetic flux. And the core is the layer of metal that conducts the magnetic field and can also be called the main body of the transformer. So, in this type of transformer, windings surround the core. Hence, they are called core type transformers. The part which is twisted is also known as the limb. Both the windings are mounted on separate limbs of the core. And core type transformers have only single flux path in the circuit. Also, it is worth noting that there are two types of windings on each of the primary and secondary - low voltage (LV) and high voltage (HV). In the image below, green color is LV winding and red color is HV winding. The LV winding is placed near the core and the HV

  Core type and   Shell type transformer Core type transformer In this transformer, the windings surround a considerable part of the core. Both the windings are bound on two opposite limbs of the core. This transformer is also called single window type transformer. Shell type transformer In this transformer, the core surrounds a major part of the windings. Both the windings are wound on the central limb of the core. This transformer is also called double window type transformer.

  Step Up and Step Down Transformer Step up transformer A transformer that increases the voltage from primary to secondary (more secondary winding turns than primary winding turns) is called a step-up transformer. A step-up transformer is a type of transformer that converts the low voltage (LV) and high current from the primary side of the transformer to the high voltage (HV) and low current value on the secondary side of the transformer.  Step down transformer A Step Down Transformer is a device which converts high primary voltage to a low secondary voltage. In a Step Down Transformer, the primary winding of a coil has more turns than the secondary winding. A step-down transformer is a type of transformer that converts the high voltage (HV) and low current from the primary side of the transformer to the low voltage (LV) and high current value on the secondary side of the transformer.

  Single Phase and  three-phase transformer Single Phase transformer A single-phase transformer is a device that is capable of transferring electrical energy from one circuit to one or more circuits based on the concept of mutual induction. It comprises two coils – a primary and a secondary coil, which helps to transform the energy. The primary coil is connected to a single-phase supply, while the secondary is connected to a load. A single phase transformer is a type of transformer which operates on single-phase power. A transformer is a passive electrical device that transfers electrical energy from one circuit to another through the process of electromagnetic induction. It is most commonly used to increase (‘step up’) or decrease (‘step down’) voltage levels between circuits. A single phase transformer consists of a magnetic iron core serving as a magnetic transformer part and transformer cooper winding serving as an electrical part. A single phase transformer is a high-efficiency pi

  Transformers A transformer is a device used in the power transmission of electric energy. The transmission current is AC. It is commonly used to increase or decrease the supply voltage without a change in the frequency of AC between circuits. The transformer works on basic principles of electromagnetic induction and mutual induction. Introduction An electromagnetic device is used to transfer electric power from one circuit to another without change in frequency. Transformers are mainly used for stepping up and stepping down the voltages as desired by end users. Its working is based on the principle of mutual induction between two circuits linked by a common magnetic field. Transformers play a major part in the transmission and distribution of AC power. Parts of Basic Transformer A basic transformer consists of following two parts as shown in the figure below Parts of Transformer Winding Coils Core Winding Coils A transformer consists of two conducting winding coils which are separate