A single-phase transformer has 500 turns on the primary and 100 turns on the secondary. The mean length of the flux path in the core is 2.0 m and the joints are equivalent to an air-gap of 0.1 mm. The value of the magnetic field strength for 1.21 T in the core is 400 A/m, the corresponding core loss is 1.8 Watts/kg at 50 Hz and the density of the core is 7850 kg/m3. The cross-sectional area of the core is 0.0187 m2. If the maximum value of the flux density is to be 1.21 T when the nominal rated voltage is
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.
A single-phase transformer has 500 turns on the primary and 100 turns on the secondary. The mean length of the flux path in the core is 2.0 m and the joints are equivalent to an air-gap of 0.1 mm. The value of the magnetic field strength for 1.21 T in the core is 400 A/m, the corresponding core loss is 1.8 Watts/kg at 50 Hz and the density of the core is 7850 kg/m3. The cross-sectional area of the core is 0.0187 m2. If the maximum value of the flux density is to be 1.21 T when the nominal rated voltage is applied at 50Hz, calculate the magnitude of the primary current, in amperes, if a load current of 135 A is being supplied at a lagging power-factor of 0.85. Neglect the leakage impedances in the transformer windings.
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