A single-phase, 240 kVA, 240/4800 V transformer has the parameters shown in Figure Q5. Determine I and V at the primary and secondary when transformer is operating at full load kVA, 0.8 power factor leading and 220 V at the primary side. Find the voltage regulation. Use actual values and per unit system. 0.002625 Q 0.009 0 1.05 Ω 3.6 Ω V2 40 0 30 Q Figure Q5

Q: A 50 Hz, Scott connected transformer supplies an unbalanced two phase load at ( 400 V) per phase.…

A:

Q: Below is a time current curve (TCC), showing the damage curve of a transformer. Draw (roughly),…

A: TCC- Time Current Curve is a plot shows the overcurrent device's interruption time which is based on…

Q: find the voltage on primary side in pu.

A: Given that, Primary Voltage (V1)=2000 V, Secondary Voltage (V2)=200 V, Primary Impedance (Z1)=0.12+…

Q: Ql-phase step down transformer 1250 KVA, 1 1000/2200 V, 50 Hz .The resistance /phase and leakage…

A:

Q: For the transformer below determine the magnitude for the induced secondary voltage if: Ep = 1kV Np…

A:

Q: A single phase, 500 kVA, 4400/440 V transformer has 100 turns in its secondary winding. Then find…

A: Solution: A single phase: KVA =500 KVA     4400/440 V,  turns N2=100, Find: primary winding turns…

Q: Given a 20 kVA, 50 Hz, 2000/200 V single-phase transformer. The parameters of the transformer…

A: Given data 20kVA, 50Hz, 2000/200V transformer R1 = 0.5, R2 = 0.005, X1 = 0.5, X2 = 0.005, Rc = 500…

Q: Two transformers A and B of different ratings but equal voltage ratios share a load of 900 kVA at…

A: Load  SL = 900 KVA   0.8 pf lagging transformer  A  rating is  600 KVA transformer  B  rating is…

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…

Q: In single phase transformer, if the primary turns N1 is greater than the secondary turns N2, then…

A: N1>N2 Then V1>V2 C option are correct

Q: A single-phase transformer is required to step down the voltage from 1100 V to 230 V at 50 Hz. The…

A: It is given that: V1=1100 VV2=230 Vf=50 Hzϕ=0.20 Wb

Q: Which of the following loss is the main reason for not using the solid transformer core? O…

A:

Distribution System

The final stage in the delivery of the electric power is the electric power distribution system. From the transmission system to the individual customers it carries electricity. The distribution system is connected with the transmission system and is used to lower the voltage of the transmission to medium voltage in the range of 2 kV to 35 kV with the help of transformers. This medium voltage to the distribution transformers located near the customer's premises is carried by the primary distribution system lines. These distribution transformers in turn lower the voltage to utilization voltage used in lightings, household appliances, industrial equipments etc. Through secondary distribution lines often several customers are supplied from one transformer. It is through service drops, the commercial and residential customers are connected to the secondary distribution system lines. Customers who demand a larger amount of power can be connected directly to the primary distribution system level or the sub-transmission level.