Question

In: Electrical Engineering

A 20KVA , 2400/240 single-phase transformer has Reqp=4.45 ohm and Xeq1=6.45 ohm, Plot the voltage regulation...

A 20KVA , 2400/240 single-phase transformer has Reqp=4.45 ohm and
Xeq1=6.45 ohm, Plot the voltage regulation as load current increased
from no-load to full-load at different power factor 0.85 lagging, 1.0 and
0.85 leading using Matlab.

Solutions

Expert Solution


Related Solutions

A single-phase transformer of 3 kVA, 60 Hz, has a voltage ratio on open circuit of...
A single-phase transformer of 3 kVA, 60 Hz, has a voltage ratio on open circuit of 240 / 120 V. The primary and secondary resistances are 0.25 Ω and 0.05 Ω respectively, the corresponding leakage reactance being 0.75 Ω and 0.18 Ω. The transformer delivers current to the load at a 0.9 power factor lagging. Determine the voltage across the load.                                                                   Determine the power dissipated by the load.                                                          Determine percentage voltage regulation referred to the secondary...
A single phase, 300???, 11??/2.2??, 60 ?? transformer has the following parameters referred to the high-voltage...
A single phase, 300???, 11??/2.2??, 60 ?? transformer has the following parameters referred to the high-voltage side: ?? = 57.6??, ?? = 16.34??, ??? = 2.784? and ??? = 3.5?. If a load of ????? = 16∠30°? connected to the low-voltage side: a) Find the voltage regulation? b) Draw the phasor diagram? c) Find the efficiency of the transformer? d) Repeat part a and b at ????? = 16∠ − 30°??
A 100MVA, 400 delta / 11Y kV, 3-phase transformer has Z(eq) = 0.02+j0.05 ohm per phase...
A 100MVA, 400 delta / 11Y kV, 3-phase transformer has Z(eq) = 0.02+j0.05 ohm per phase referred to the low-voltage side, and R(c) = 1800 ohm per phase referred to the high-voltage side. If the transformer supplies rated voltage at full load at 0.8 power factor lagging. Determine its voltage regulation and efficiency.
I have to design a single phase/50Hz step down transformer. Following information is given Primary Voltage...
I have to design a single phase/50Hz step down transformer. Following information is given Primary Voltage =240V, Secondary Voltage and current on secondary side should be 24V and 2A respectively. efficiency should be in range of 70 to 80%. Provide me all the necessary calculations to design this step down transformer. And also note down all the hardware components that i should buy for this design. Note: Tell me if i have missed any information for this project.
4.11)The equivalent circuit parameters of a 150 kVA, 2400 V/ 240 V, 60 Hz transformer are...
4.11)The equivalent circuit parameters of a 150 kVA, 2400 V/ 240 V, 60 Hz transformer are as follows: RHV = 0.21Ω, RLV = 2mΩ, XlHV = 0.45Ω, XlLV = 4.6mΩ, XmHV = 1.6kΩ, and RcHV = 12kΩ. The transformer delivers to a load, rated current at a power factor of 0.85 lagging at rated voltage. Determine the input voltage, current, apparent power and power factor, (a) using the approximate equivalent circuit, and (b) not using the approximate equivalent circuit. Problem...
delta to wye transformer. with the following voltages what is the phase to ground voltage. A:...
delta to wye transformer. with the following voltages what is the phase to ground voltage. A: 345kv B: 115kv C: 34kv D: 12kv do the same voltages for wye to delta, delta to delta and wye to wye transformer. please show your work. so i could understand the math behind it. thank you. 345kv primary to 115kv secondary 115kv primary to 34.5kv secondary 34.5kv primary to 12kv secondary
The 230V single phase induction motor has the following integer. Rs = Rr = 8 ohm,...
The 230V single phase induction motor has the following integer. Rs = Rr = 8 ohm, Xs = Xr = 12 ohm, Xm = 200 ohm When this motor is rotating at 1,728 rpm in normal operation Find the input current, input power, mechanical conversion power and induced torque. Answer 2.60A, 384W, 294W, 1.62N-m
A single-phase 300-kVA, 220/4400 V, 60 Hz transformer yielded the following information when tested: High voltage...
A single-phase 300-kVA, 220/4400 V, 60 Hz transformer yielded the following information when tested: High voltage winding open: Voltage=220 V, Current=40 A Power=l 000W Low voltage terminal shorted: Voltage= 195 V, Current=68.18A Power=4000W Find the equivalent circuit of the transformer as viewed from the high voltage Calculate the .efficiency of the transformer when it delivers its rated load at rated terminal voltage and 8 power factor lagging.
Exercises 1. A 25 kVA single-phase transformer has the primary and secondary number of turns of...
Exercises 1. A 25 kVA single-phase transformer has the primary and secondary number of turns of 200 and 400, respectively. The transformer is connected to a 220 V, 50 Hz source. Calculate the (i) turns ratio, and (ii) mutual flux in the core. 2. A 25 kVA, 2200/220 V, 50 Hz single-phase transformer’s low voltage side is short-circuited and the test data recorded from the high voltage side are P=150 W, I1 = 5A and V1 = 40 V. Determine...
A single-phase transformer 5 kVA, operating at 50 Hz frequency has turns ratio of 20. The...
A single-phase transformer 5 kVA, operating at 50 Hz frequency has turns ratio of 20. The primary and the secondary winding resistances are 0.15 Ω and 0.025 Ω respectively, and the primary and secondary leakage reactances are 0.65 Ω and 0.15 Ω respectively. The magnetizing inductance and core loss resistance are 6 Ω and 1 Ω respectively. i. Calculate the primary and secondary impedances referred to primary and sketch the APPROXIMATE equivalent circuit. (Note: please show all parameters in the...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT