how to do back to back test on a transformer?

Hello friends, in today’s post you will know how to do back to back test on a transformer?, in back to back test two transformers?, if you also want to go, then read this post completely, I told you very well in this post. have tried to tell

Back-to-back test on transformer?

This test is done to measure the efficiency, regulation as well as heat rise at full-load of the transformer. This is possible only when two identical transformers are connected.

Load one transformer and connect both to the supply on the other side. Given that, it is necessary to draw energy from the supply to negligible both the transformer losses and the small losses in the control circuit.

• Read more- what is a single-phase transformer?

The primary conductors of both the transformers are connected in parallel to the same alternating current supply. When the switcher s is open, in this case the w1 wattmeter measures the core loss of both transformers. The secondary coils of the transformers are interconnected in such a way that their potentials are opposite. Like Van = Vcd and connect A to C and connect B to D. In this case no other current flows through the loop formed by both the secondary coils.

T is a simple low voltage transformer that gives current and variable voltage to the secondary loop circuit and regulates both.
If T is arranged properly then the i2 current starts flowing in the secondary loop, I2 flows from D to C and from A to B. And current flows in i1 loop FEJLGHMF which do not pass through w1 wattmeter, w1 keeps on calculating core loss continuously. W2 calculates the copper loss at full load. Thus we use double part in losses of a single transformer.

Now you must have come to know how the back-to-back test on the transformer?, in back-to-back test two transformers, is done. You must have got the answer to this question on back to back test transformer.