Transformer Simplified Diagram |

To get an understanding of the simplified diagram of a transformer, you have to study the vector diagram of the transformer. The combined vector diagrams are shown herewith the figure VD-A, VD-B and VD-C.

The vector diagram of Fig. VD-A may be considerably simplified if the no-load current I

_{0}is neglected. Since I_{0 }is 1 to 3 per cent of full-load primary current I_{1}, it may be neglected without serious error. Fig. VD-B shows the diagram of Fig. VD-A with I_{0}omitted altogether.In Fig. VD-B, V

_{2}, V

_{1}, φ

_{2}are known, hence, E

_{2}can be found by adding vectorially I

_{2}R

_{2 }and I

_{2}X

_{2}to V

_{2}.

Similarly, V

_{1}is given by the vector addition of I_{1}R_{1 }and I_{1}X_{1}to E_{1}.All the voltages on the primary side can be transferred to the secondary side as shown in the figure, where the upper part of the diagram has been rotated through 180°. However, it should be noted that each voltage or voltage drop should be multiplied by transformation ratio K.

The lower side of the diagram has been shown separately in Fig. VD-C laid horizontally where the vector for V

It is a simple matter to find transformer regulation as shown in Fig. VD-C left or Fig. VD-C right.

It may be noted that

The lower side of the diagram has been shown separately in Fig. VD-C laid horizontally where the vector for V

_{2 }has been taken along the X-axis.It is a simple matter to find transformer regulation as shown in Fig. VD-C left or Fig. VD-C right.

It may be noted that

**V**_{2}= KV_{1}− I_{2}(R_{02}+ jX_{02})= KV

_{1}− I_{2}Z_{02}.Also, V

_{1}= (V_{2}+ I_{2}Z_{02}) #3/KHope the simplified diagram of a transformer is explained simply, for more details you may read the transformer related to our another article.

## No comments:

## Post a Comment

WAZIPOINT:

Thank you very much to visit and valuable comments on this blog post. Keep in touch for next and new article. Share your friends and well-wisher, share your idea to worldwide.