A 3-phase,50HZ, 150 KVA, 2200/220 V transformer supplies a 3- phase load drawing 120 KVA and 90 KW lagging on the 220 V side. The transformer is made up of three single phase transformers connected Y/Y and having the following per phase values given: RH-0.42; XH-22; RL=4m2; XL=20m2; RCH=1Ok2; XmH =8k2. Determine: (a) The primary voltage. (b) Efficiency. (c) The voltage regulation of the transformer.

Q: 2 A 1000 kVA 11 kV/400 V ONAF cooled transformer works on a cycle of 3 hours heavy load and 21 hours…

A: Given that the peak load is 140% and can only be maintained for 0.5 hours per hour of time constant,…

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: 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: Determine the ratio of the kW output of transformer A to the kW output of transformer B. Both…

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: onsider a three winding transformer with the following particulars: = 50-40° A. Assume that V₂ is 1=…

A: Solution- THREE WINDING TRANSFORMER       Given, Z1=Z2=Z3 = 0.02+j0.08 ohmV2 = 400 VI2 = 60∠-30° AI3…

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

A:

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: 8 The EMF induced in the secondary winding of a 50 Hz single-phase transformer having 500 turns on…

A: Given: The EMF induced in the secondary winding, E2=13.2 kV Frequency, f = 50 Hz Number of turns on…

Q: A 40 kVA 6000/240-V distribution transformer has an impedance referred to the primary of 15+j80Ω.…

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.