8000°V 3 j2 w mo 8:1 * I, 31₂ mn V Figure 9: For Q18,19: Consider the ideal transformer circuit shown in Figure 9. 18. The current I, on the primary side of the transformer is given by (a) 1.700242.5° A (b) 437.12-28.3° mA (c) 13.41239.6° A (d) 212.8242.9° mA (e) 231.92-33.7° mA 40.2 -40 19. The voltage Vacross the 352 resistor on the secondary side of the transformer is given by (a) 5.1072-137.1° V (b) 638.4242.9° mV (e) 798.02-127.2⁰ mV (d) 5.3262146.3° V (e) 40.86242.9° V

Q: A transformer with Np = 20 and Ns = 30, what is the transformer ratio (a = ?) a. 25 b. No right…

A: Given, For a transformer, Number of primary turns, Np=20 Number of secondary turns, Ns=30

Q: draw a three-phase transformer equivalent circuit and also explain how formulas were derived

A: This is a 3 phase transformer equ6 circuit.

Three-Phase Transformers

Three-segment transformers are a type of transformer used to transform voltages of electrical systems into three ranges. Two type transformers are shell-type transformer and core type transformer. In brief, it could be described because of the exquisite kinds of configurations.

Transformer

Ever since electricity has been created, people have started using it in its entirety. We see many types of Transformers in the neighborhoods. Some are smaller in size and some are very large. They are used according to their requirements. Many of us have seen the electrical transformer but they do not know what work they are engaged in.