The three-phase ratings of a three-winding transformer are: Primary Y-connected, 66 kV, 24 MVA Y-connected, 13.2 kV, 12 MVA Secondary Tertiary A-connected, 2.3 kV, 4 MVA Neglecting resistance, the leakage impedances are: Zps = 6% on 24 MVA, 66 kV base Znt 8% on 24 MVA, 66 kV base "pt = Zst = 7% on 12 MVA, 13.2 kV base Find the per-unit impedances of the per-phase equivalent circuit for a base of 24 MVA, 66 kV in the primary circuit. {Ans: j 0.0; j 0.06; j 0.08}

Q: A 209 V / 125 V single-phase transformer has a core loss of 120 W and the no-load current is 0.7 A.…

A: We need to calculate power factor .we will use given data to calculate power factor

Q: Consider a single phase transformer with primary and secondary turns of 1000 and 200 respectively…

A: Given:R1=10.5ΩR2=2.5ΩX1=12.5ΩX2=2.5ΩRm=15.55KΩXm=10KΩK=1000200=5

Q: In a Delta-Delta transformer connection, how many wires are recommended for both primary and…

A: The objective of the question is to determine the number of wires recommended for both primary and…

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

A:

Q: Write ‘T’ for True and ‘F’ for False The phase shift angle of a Δ-Y transformer can only be 30⁰

A: In this question we will find phase shift between delta star transformer..

Q: A 3-phase transformer is assembled by connecting three 720 -VA, 360/120 V single phase transformers…

A: A 3-phase, Y−Δ connected transformer is assembled by connecting three 720 VA, 360/120 V single-phase…

Q: Three single phase transformers are connected in a Delta-Delta configuration. Each transformer is…

A:

Q: Three single phase transformers are connected in a Wye-Wye configuration.  Each transformer is rated…

A: Wye-Wye configuration  Transformer rated 25kv/62kv Load = 640 KVA Supply = 25Kv (L-N)

Q: transformer 1200 KVA, 11000/2200 V, 50 Hz." akage reactance/phase of the primary winding are…

A:

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.