If the load of wye connected transformer are:IA = 10 cis(-30ᴼ)IB = 12 cis (215ᴼ)IC = 15 cis (82ᴼ) What is the positive sequence component?The sequence component of phase a current are:Zero sequence current = 0.47 + j1.49Positive sequence component = 18.4 cis (-31.6ᴼ)Negative sequence component = 3.23 cis (168.2ᴼ) Determine the phase b current.

In this question we will find positive sequence components and phase b current with given data. ..

Answered: If the load of wye connected…

If the load of wye connected transformer are: IA = 10 cis(-30ᴼ) IB = 12 cis (215ᴼ) IC = 15 cis (82ᴼ) What is the positive sequence component? The sequence

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter3: Power Transformers

Section: Chapter Questions

Problem 3.20MCQ

See similar textbooks

Related questions

Q: We want to design a causal discrete-time LTI system with the property where the input is x(n) =…

Q: Show your solutions clearly and systematically. The D latch of Figure 1 is constructed with four…

A: Given The D latch of Figure 1 is constructed with four NAND gates and an inverter. Consider the…

Q: 11. The impedance on the Smith chart can be repeated for each half wavelength . length of the…

A: Lembda/2 line of the transmission line is called as impedance reflector because the value of…

Q: The time constant for the system with the transfer function G2(s) 0² O 18 06 12 18 12s +6 is

A: Given: System transfer function, G2s=1812s+6

Q: The D latch of Figure 1 is constructed with four NAND gates and an inverter. Consider the following…

A: A D latch is a 1-bit memory circuit, which is implemented by Logic gates and inverters. It consists…

Q: If Vz=8 V and Pzmax=150mW. Determine the minimum value of RL to ensure the * Zener diode is in the…

Q: an+bu[-n- c] ↔ ³²2-¹, ROC: 2 < 1-32'

Q: The static error acceleration constant is both zero for system type 1 and 2. True or False

A: In this question we will find static error acceleration constant...

Q: Solve the base voltage of a voltage-divider bias circuit with Vcc=9V, R1=560k ohms, R2=560k…

Q: 20. For the circuit shown below, if the voltage across AB is 20 V, find the current I. 8.092 B 4.002…

A: We need to find out current for given circuit

Q: The static error acceleration constant is both zero for system type 1 and 2. True False

Q: Refer to page 30, the single line diagram shows 1000 kVA. if the transformer capacity rating to be…

A: From the given reference and by changing the ratings according to given values the single line…

Q: For the following circuit if the secondary voltage of the transformer is 20V rms, the PIV of the…

Q: Determine the value of V.. 1292 50V + Vx 315Ω 2Vx + 1092 1292 2A

Q: Determine the value of the current ?for the circuit shown below.

Q: Q1: For the circuit shown in figure. Derive the stability factors S(Ico), S(VBE) and S(ß). RB +Vcc…

Q: For R1=478, R2=154, R3=169, R4=400, R5=195, R6=335, V1=7V & 11=2 A in the shown circuit, using the…

Q: - Find Leq 77 pH 17 pH m m 4 nH ele -Lea] b a 12 nH ele 72 pH 1nH мее 7 pH m 14 pH

Q: If 30% of a number is 12.6, find the number 38 42 40 45

A: given 30% of a number is 12.6 , here we have to find that number. we know that 30% means 30100.

Q: For a negative unity feedback system with the given forward transfer function, G(s) = 500 (s + 2) (s…

Q: and i₂. Find the Req at terminals a-b in the circuit shown. Also determine i, i ₁, 12 M 2 www 6 www…

Q: Problem 29: Write the analytical expressions of the waveforms shown below: AU (MV) Ai (mA) f=2 kHz 0…

A: We need to write equation for given waveform

Q: 16. The resistance of a parallel circuit consisting of two branches is 12 ohms. If the resistance of…

Q: 1. Find Ceq HE 0.4 μF €7μF :5 μF 0.8 μF HE HE 1 μF 12 μF 2 με 46 :5 μF

A: given here a combination of capacitors circuit and asked to find the equivalent capacitor Ceq.

Q: Core losses and rotational losses in a dc generator can occur even at no load conditions. a. True…

A: Bartleby has policy to solve only first question reupload the other questions.

Q: * Determine the maximum current Iz if Vz=8 V Pzmax=150mW R www 470 Ω R₁. 24 V 28.3 MA O 20 MA O…

A: We need to find out sender diode current

Q: 1. Find VCE, VBE, and VCB in below circuits. 2. Determine if the transistor is saturated or not Rc…

A: BJT transistor: It is a three terminal device and use for amplify the gain and as a switch. The…

Q: -HW - For an 8-PSK system, operating with an information bit rate of 24kbps, determine: a) baud rate…

A: We need to find out baud rate , bandwidth for given PSK .

Q: 2. Find the voltage across a 5µH inductor if i equals A) 30te-t nA B) 4e-5t sin 100t mA

A: We need to find out voltage for given current

Q: The overall transfer function for the system below is

Q: ! The input characteristics of common emitter is between IB and VBE O IE and IB IB and VCE OIC and…

A: This question belongs to analog electronics . It is based on the concept of common emitter…

Q: For a negative unity feedback system with the given forward transfer function, G(s) = 500 (s + 2) (s…

Q: Form the Jacobian matrix form the following power system network based on the types of buses…

A: The Jacobian matrix collects the partial derivatives required for backpropagation; the determinant…

Q: A circuit whose resistance is 20 22 and inductance 10 H has a steady voltage of 100 V suddenly…

A: In this question we need to find a total input power to the circuit and power dissipated in the…

Q: A LED which bright

A: Diode- When diode is forward biased it is short circuited in a circuit ideally. When diode is…

Q: A single core concentric cable is to be manufactured for a 100kV, 50Hz transmission system. The…

A: Given data, The maximum permissible safe stress is gmax = 10,000,000 V/m. The working line voltage…

Q: Solve the approximate value of Rg of Figure 44. VCC 12V Ⓒ468 AD 356 AM Ⓒ333 AN 340 AM RB RC Q1 Beta…

Q: 1. Find v₁ and v₂ in the circuit shown in the following figure. Also calculate i and i and the power…

A: The circuit is shown below: The current I in the circuit is, i=1510||40+12||6i=158+4i=1512i=1.25…

Q: * For the following circuit if the secondary voltage of the transformer is 20V max, the output…

A: We need to select correct option for output voltage for given circuit

Q: roblem 15: Find the angular velocity w of a waveform when the frequency is: a. 100Hz b. 0.25kHz c.…

Q: Half adder has two inputs and full adder has three inputs. Select one: True O False

A: given here a statement and asked whether the given statement is true or false. given statement is…

Q: The steady-state error due to unit step input to a type-1 system is: 1. 1/(1+ kp) 2. Zero 3. 1/ Kp…

A: The steady-state error for a given input depends on the type of open-loop transfer function of the…

Q: The behavior of the steady-state response of a system can be determined using impulse function as…

Q: Problem 1: Find the total impedance of the parallel networks in polar form. | 12 ΚΩ R ΕΚΩ Μ Π ΑΣΙΚΩΝ…

A: In this questions we need to calculate the equivalent impedance of the given parallel circuit.

Q: For a common emitter transistor circuit, the collector current is 20 mA and emitter current is 20.1…

Q: The reversible steady flow process 1-2-3-4-5-3 o

Q: Component values of the following circuit are listed in the Table I. Answer the following questions…

A: The resistance between any node and ground in a circuit with dependent sources is found out by R =…

Q: 5. Using inverters, OR gates, and AND gates, construct a combinatorial circuit that produces the…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Problem 26: For the high-pass filter shown below, determine the cutoff frequency fc- с * 20 pF R 100…

Q: Show your solutions clearly and systematically. The D latch of Figure 1 is constructed with four…

A: Given The D latch of Figure 1 is constructed with four NAND gates and an inverter. By using four…

Concept explainers

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.

Question

If the load of wye connected transformer are:

I_A = 10 cis(-30ᴼ)

I_B = 12 cis (215ᴼ)

I_C = 15 cis (82ᴼ)

What is the positive sequence component?

The sequence component of phase a current are:

Zero sequence current = 0.47 + j1.49

Positive sequence component = 18.4 cis (-31.6ᴼ)

Negative sequence component = 3.23 cis (168.2ᴼ)

Determine the phase b current.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Step by step

Solved in 3 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.

Similar questions

Three single-phase, two-winding transformers, each rated 450MVA,20kV/288.7kV, with leakage reactance Xeq=0.10perunit, are connected to form a three-phase bank. The high-voltage windings are connected in Y with a solidly grounded neutral. Draw the per-unit equivalent circuit if the low-voltage windings are connected (a) in with American standard phase shift or (b) in Y with an open neutral. Use the transformer ratings as base quantities. Winding resistances and exciting current are neglected.
The ratings of a three-phase three-winding transformer are Primary(1): Y connected 66kV,15MVA Secondary (2): Y connected, 13.2kV,10MVA Tertiary (3): A connected, 2.3kV,5MVA Neglecting winding resistances and exciting current, the per-unit leakage reactances are X12=0.08 on a 15-MVA,66-kV base X13=0.10 on a 15-MVA,66-kV base X23=0.09 on a 10-MVA,13.2-kV base (a) Determine the per-unit reactances X1,X2,X3 of the equivalent circuit on a 15-MVA,66-kV base at the primary terminals. (b) Purely resistive loads of 7.5 MW at 13.2 kV and 5 MW at 2.3kV are connected to the secondary and tertiary sides of the transformer, respectively. Draw the per- unit impedance diagram, showing the per-unit impedances on a 15-MVA,66-kV base at the primary terminals.
In developing per-unit circuits of systems such as the one shown in Figure 3.10. when moving across a transformer, the voltage base is changed in proportion to the transformer voltage ratings. (a) True (b) False
The ratings of a three-phase, three-winding transformer are Primary: Y connected, 66kV,15MVA Secondary: Y connected, 13.2kV,10MVA Tertiary: connected, 2.3kV,5MVA Neglecting resistances and exciting current, the leakage reactances are: XPS=0.09 per unit on a 15-MVA,66-kV base XPT=0.08 per unit on a 15-MVA,66-kV base XST=0.05 per unit on a 10-MVA,13.2-kV base Determine the per-unit reactances of the per-phase equivalent circuit using a base of 15 MVA and 66 kV for the primary.
With the American Standard notation, in either a Y-or-Y transformer, positive- sequen quantities on the high-voltage side shall lead their corresponding quantities on the low-voltage side by 30. (a) True (b) False
The ideal transformer windings are eliminated from the per-unit equivalent circuit of a transformer. (a) True (b) False
Consider the three single-phase two-winding transformers shown in Figure 3.37. The high-voltage windings are connected in Y. (a) For the low-voltage side, connect the windings in , place the polarity marks, and label the terminals a, b, and c in accordance with the American standard. (b) Relabel the terminals a, b, and c such that VAN is 90 out of phase with Va for positive sequence.
Reconsider Problem 3.64 with the change that now Tb includes both a transformer of the same turns ratio as Ta and a regulating transformer with a 4 phase shift. On the base of Ta, the impedance of the two comp onents of Tb is jO.1 per unit. Determine the complex power in per unit transmitted to the load through each transformer. Comment on how the transformers share the real and reactive pors.
For a short-circuit test on a 2-winding transformer, with one winding shorted, can you apply the rated voltage on the other winding? (a) Yes (b) No
Consider Figure 3.4. For an ideal phase-shifting transformer, the imda nce is unchanged when it is referred from one side to the other. (a) True (b) False
A single-phase, 50-kVA,2400/240-V,60-Hz distribution transformer has the following parameters: Resistance of the 2400-V winding: R1=0.75 Resistance of the 240-V winding: R2=0.0075 Leakage reactance of the 2400-V winding: X1=1.0 Leakage reactance of the 240-V winding: X2=0.01 Exciting admittance on the 240-V side =0.003j0.02S (a) Draw the equivalent circuit referred to the high-voltage side of the transformer. (b) Draw the equivalent circuit referred to the low-voltage side of the transformer. Show the numerical values of impedances on the equivalent circuits.
Three single-phase two-winding transformers, each rated 25MVA,54.2/5.42kV, are connected to form a three-phase Y- bank with a balanced Y-connected resistive load of 0.6 per phase on the low-voltage side. By choosing a base of 75 MVA (three phase) and 94 kV (line-to-line) for the high-voltage side of the transformer bank, specify the base quantities for the low-voltage side. Determine the per-unit resistance of the load on the base for the low-voltage side. Then determine the load resistance RL in ohms referred to the high-voltage side and the per-unit value of this load resistance on the chosen base.