Vab b + Vbc Vca с 12 – j8 Ω с 6 + j15 Ω 13+j5 S B

Q: Four circuits A, B, C and D are connected in series across 300 V sinusoidal supply. The voltage…

A: The solution is given below

Q: fngure are as fol Generator G 160 kVA 22 KV X= 9% Line Z- 2 + j5 S2 22 KV Transformer T 200 kVA…

A: Given base values are 160 KVA, 20 KV

Q: What is the DC resistance per phase? What is the effective resistance per phase?

A:

Q: In the system shown in Figure 1, the transformers are connected star-star with both star points…

A: In this question we need to find the load current in per unit value

Q: Do the operations by taking two digits in the part of the decimal number after the dot. Do not…

A: Solution: Given data: 3- phase Delta -connected Z=40 ohm<30(degree) Voltage=374 V Angle= 140…

Q: The 3-phase power and line-to-line voltage ratings of the electric power system shown in the…

A:

Q: 1. What is the main direct cause of reactive power in AC system? A. Resistance of transmission lines…

A:

Q: Two synchronous generators G1 and G2 are connected to a power transformer Tr and a transmission line…

A: To solve this question we 1st calculate the new value of per unit value at given base power and…

Q: 4. In Y-Y connection, line - to neutral voltage equals the line to - line voltage. (wrong / true /…

A:

Q: Hw1-3: 3-phase, 50HZ, 132KV power system of equivalent impedance 10+j35 Q with load 100+j25 Q. Find…

A: We are authorized to answer three one question at a time, since you have not mentioned which…

Q: Determine the currents in each branch of the following electrical circuit by using Gauss Jordan…

A: This question requires basic knowledge about kvl and matrices

Q: Q. No. 01 [CLO1-C3]: Draw an impedance diagram for the electric power system shown in Figure-1,…

A: We can obtain the impedance diagram by using below steps: -  The base voltage VBG1  on the LV side…

Q: How did he come up with the idea? And why didn't he draw the circle?

A: Asked to draw the phasor diagram of star connected balanced load with currents.

Q: Calculate the rms value of A.C. as shown in the figure. 13 2A- -2A 12

A: we need to find out rms value of of given A.C.

Q: Problem: For the cct shown find the equation of current and draw the phaser 202 diagram. 402 VR VL…

A: We need to find out current for given circuit

Q: When a loaded generator is supplying power to a motor, a bal motor. When using Internal Voltage…

A: In the internal voltage method, the generator current represents the total current. Ig-internal…

Q: B)-A DC generator has Ra=0.12, Rs=0.502, VT-250V, I₁=100 find Ea= and copper losses

A: In this question we need to find a induced emf and copper loss in generator

Q: Given: three phase alternator P= 12 poles conductor of each phase in series Wye Connected coil span…

A:

Q: Describe a single-phase circuit, polyphase circuit, and a three-phase circuit. List the advantages…

A: In electrical engineering, the distribution and transmission of electrical power are achieved…

Q: The 3-phase power and line-to-line voltage ratings of the electric power system shown in the…

A: In this question we need to find a voltage in KV or Volt for the given value of Vg

Q: Problem 9-AC phase shifts: The voltage and current waveforms shown below were measured across either…

A: The given waveform is shown below:

Q: A 3-phase transformer connected to a load. The following per-phase values are given: Req.s = 1.2…

A: we need to determine copper loss and core loss for the given 3 phase transformer

Q: Why do we need 220 V at 60 Hz in outlets? Why don’t we use DC in our transmission lines instead?

A: Transmission lines- Transmission lines are used to transfer electrical power from one place to…

Q: None

A: 1. Basics of Three-Phase Power:Definition: Three-phase power is a method of electrical power…

Q: Problem: The sequence components of phase A currents are: la0 = 0.47 + j1.49 A la1 = 18.4 cis -…

A: Given sequence components of phase A currents :  Ia0=0.47+j1.49 A=1.562∠72.5° A Ia1=18.4∠-31.6°…

Q: Refer to the autotransformer circuit in following figure. Calculate: (a) I1. 12 and lo if Z = 8 + j6…

A: From the given network we can write  From the current I2 is given as

Q: wo de shunt generators, each with armature resistance 0,02 ohm and field resistance of 50 ohms run…

A:

Q: A balanced load is connected in star across a 3 phase 415V 50Hz supply. The load consists of a coil…

A: Given data,3 phase Supply voltage V=415V Frequency (f)=50Hzload consists of a coil of resistance…

Q: The 3-phase power and line-to-line voltage ratings of the electric power system shown in the…

A: In this question we need to find a impedance of the motor in per unit.

Q: Use phasor diagram of alternator in leading p.f. (figure 2-b in this lecture) to derive the fomula…

A: An alternator/Synchronous generator is a type of electrical machine that converts mechanical energy…

Q: If a double-line ground fault occurs at node 5, calculate the currents in the generator. Use VBase =…

A:

Q: 1) (17 points) The input voltage and current of a single-phase power transformer are as indicated in…

A:

Q: The bases of the system are 66 kV and 20 MVA, the transformers will be treated as impedances in…

A:

Q: what is the kilowatt rating of a three-phase 975-KVA generator at. a.  unity power factor ? b. 80…

A:

Q: A complex voltage given by: 10 er=100+75sin600t+50sin1200t+25sin1800t Volt, is applied across the…

A:

Q: 1a)Analyze the circuit in Figure 1, consider R = 10 kQ and C= 10 nF. Obtain the mathematical…

A:

Q: In class B chopper, which of the given statement is true The power flows always from load to source…

A: The power flows always from load to source

Q: ii) A string of suspension insulators consists of three units if the voltage across the line unit is…

A: A string of suspension insulators consists of three units. voltage across the line unit is 20 kV.…

Q: Solve for the instantaneous current and max current of each parameter on circuit. And Graph the…

A: Given circuit is pure capacitive circuit with AC voltage source of 220 V   We have to determine…

Q: Can you help me provide recommendations to improve harmonics and flicker- in three phase power…

A: The harmonics in a system can be explained as the integral multiple of the fundamental frequency.…

Z parameter

The Z-parameters that are the impedance parameters of a two-port network are defined by expressing the two-port voltages V1 and V2 in terms of two-port currents I1 and I2. The Z-parameters are calculated by open circuiting one of the two ports at a time henceforth they are called open-circuit impedance parameters.