A three-phase generator operating with a terminal voltage of 115V is connected to a three- phase transformer rated 7.5MVA 115/13.2kV. The transformer has a per-phase series impedance of 0.007+j0.075 pu and is connected to a distribution line with series impedance of 0.02+j0.1 pu per phase on a base of 10MVA, 13.2kV. The line supplies a balanced three-phase load rated 6MVA, 13.2kV with 0.85 lagging power factor. a. Draw and equivalent per phase circuit of the system indicating all impedances in per unit. Use 10MVA, 13.2kV as the base at the load. b. Find the current at the generator in amperes. c. Determine the voltage regulation at the load.

Q: A short transmission line connects a step-up transformer on the source side with a series impedance…

A: To find the real power absorbed by the load, we first need to determine the voltage and current at…

Q: Ql-phase step down transformer 1250 KVA, 11000/2200 V, 50 Hz . The resistance /phase and leakage…

A: (i) The per-phase secondary voltage in the star-connected secondary winding can be calculated as,

Q: A 3-phase balanced system includes a 3-phsae source with volta; transformer with 20MVA and…

A: Power of transformer is given by  S=20 mVA Voltage Rating is given 13.8 kV/230KV

Q: A 50 Hz, 13.6kv, 3-phase arternator with grounded neutral has inductance of 12 mH per phase and is…

A: Note- As per the Bartleby guideline for the question having more than three sub-part , only three…

Q: The resistance and reactance of the primary winding of a 440/110 V single phase transformer are 4.4…

A:

Q: QUESTION 12 A single phase 600v/120v transformer has a load of 30 ohms resistive and 20 ohms…

A:

Q: 200 KVA, single phase two-winding transformer rated 4160/230 V, 60 Hz has primary and second…

A:

Q: In a 25kVA single phase transformer the core loss and full load copper losses are respectively 320…

A: Given data KVA=25Core loss (Lc)=320 W=0.320KWCopper loss (Lcu)=380W=0.380 KW   (full load)cos…

Q: A three phase power transformer having a line voltage ratio of 400 V to 33 kV is connected in…

A: We have an three-phase power transformer as shown in figure, Voltage ratio = 400 V / 33 KV Current…

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.