For a 20 KVA, 480/220 V, 60 Hz, single phase transformer. Calculate the phasor load current if the transformer is supplying a 12.6 KW load at 0.881 lagging power factor, if the load voltage is 220 V. Select one: Ⓒa. 57.265 - j30.75 Amp Ob. 30.75-j57.265 Amp c. None d. 57.265 +j30.75 Amp

For a 20 KVA, 480/220 V, 60 Hz, single phase transformer. Calculate the phasor load current if the transformer is supplying a 12.6 KW load at 0.881 lagging power factor, if the load voltage is 220 V. Select one: Ⓒa. 57.265 - j30.75 Amp Ob. 30.75-j57.265 Amp c. None d. 57.265 +j30.75 Amp

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 3.28MCQ

See similar textbooks

Related questions

Q: current and 3 kW at 220-V. Determine the values of resistance and reactance of each phase of the…

A: For a balanced delta connection The line voltage, VL = Phase voltage, VPh The line current, IL = 3…

Q: Find VH, VL, VREF, and DeltaV for the ECL gate shown below. Q3 -1.3 V VOLO 13 R VBE3 Rc iB3 UCI · 42…

A: The given circuit diagram is shown below:

Q: Write the logical equation of the CMOS circuit shown below: +2.5 V 3 A B C D PMOS switch network (2)…

Q: A low pass filter passes signals above one cutoff frequency and below another cutoff frequency…

A: TRUE or FALSE Question: Given statement is A low pass filter passes signals above one cut off…

Q: Diode turns OFF if the applied voltage polarity is Select one: O a. None of the answers b. opposite…

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

Q: Q4: Design a buck converter to produce an output voltage of 18 V across a 10-_ load resistor. The…

A: Current: It is the time rate of the change of the charges. It is also known as the flow of the…

Q: 4: Design a buck converter to produce an output voltage of 18 V across a 10-_ load resistor. The…

A: Given,Output voltage, Vout = 18VLoad resistor, Rload = 10 ΩDC supply, VDC = 48VVoltage ripple,…

Q: Q1 Consider the following block diagram: A3UD А F=A'B' + A'BC'D + AB'C'D' (a) Represent the output F…

A: For the following bock diagram answer the following questions : Output F as a function of A,B,C…

Q: B) Calculate the reflection coefficient of the cavity reflectors for semiconductor laser with 500µm…

A: For the given values of threshold gain and attenuation gain we need to calculate reflection…

Q: Implement the Boolean function F = xy + x ′ y ′ + y ′ z. With OR and inverter gates.

A: it is given that: F = xy+x′y′+y′z

Q: A PN flip-flop has four operations: clear to 0, no change, complement, and set to 1, when inputs P…

A: A electronic device which has stores a single bit (binary digit) of data know as a flip-flop.…

Q: A consumer has a maximum demand of 200kW at 30% annual load factor. If the tariff is 1.2 OMR per kW…

A: Given data, Maximum demand, MD=200 kW Annual load factor, Load factor=30%

Q: A voltage divider amplifier shown in Figure 3 has an output current Ic = 4 mA. Based on the circuit…

A: Since you have posted the questions with multiple subpart so we are supposed to answer 3 subpart.

Q: Cwi = 120 pF Cwo 10 pF Cbe = 40 pF Cbc = 10pF = 14pF Cce == 1. 5 ΚΩ 15 V www 4.7kΩ B = 100 1 μF - 4…

A: For the above given common base amplifier we need to derive all the AC parameters.

Q: EXAMPLE To illustrate calculations with the unit impulse function, consider evaluation of the…

A: As per our guidelines we are supposed to be the first three questions only. Kindly repost the other…

Q: semiconductor is n or p type, device is operating in accumulation, deplet 1 charges do each of the…

A: The semiconductor is p-type and the operation of devices in inversion mode.

Q: Draw a logic diagram constructing a 3 × 8 decoder with active-low enable, using a pair of 2 × 4…

A: A circuit device that changes a code into a set of signals, know as decoder. It is a just reverse of…

Q: Describe the functionality of a D-type flip-flop.

A: D-type flip-flop. It has two stable states is known as a D-type flip-flop. When operating, a D-type…

Q: 5. Find the current through the diode in the following circuit. Assume the diode to be ideal 10V 50Ω…

A: Given data, Voltage (V)=+10V Given circuit:-

Q: The reactance data for the given power system is as follows: X¹ X² Xº 0.10 0.10 0.05 0.10 0.10 0.05…

Q: In the class, we learned the design of 74x157, a 2-input 4-bit multiplexer. Study its logic diagram…

A: Multiplexer :- It is combinational circuit which has maximum 2n inputs, single output and 'n'…

Q: 8. If a separate building is supplied with a three-phase ungrounded delta, then the three conductors…

A: Grounding: It is known as grounding or earthing to link the metallic frame, or non-current carrying…

Q: 7.) Draw a diagram of a CMOS setup and explain the CMOS voltage transfer character- istic. Indicate…

A: Complementary metal oxide semiconductor devices are chips in which both P-channel and N-channel…

Q: 10. A signal is band limited to 3.6 and three other signals are band limited to 1.2 kHz each. These…

Q: Task: Sketch a graph of IL vs VL Bata Son load regulation: POT R (KR) POT R(x) V 220 (mv) 10 9 8 7 6…

A: Load regulation- The term load regulation define as an ability of the supply to maintain the output…

Q: A 60-Hz synchronous generator having inertia constant H = 5 MJ/MVA and a direct axis transient…

Q: What exactly is a motion sensor for fitness purposes?

A: Types of motion sensor Microwave sensor Ultrasonic sensor Vibration sensor Infrared sensor.....etc…

Q: It is necessary to generate six repeated timing signals T0 through T5 similar to the ones shown in…

A: flip flop is a device used for storing single bit of data there area two states one state represents…

Q: Determine the frequency and duty cycle

Q: If the skin temperature is 310 K and area of the human surface is approximately 1.8m2 then the power…

Q: B) For the circuit shown below, the switch is opened for a long time, at t=0 it is closed. i) Find…

Q: High-Pass, Band-Pass and Band-Reject Filters are commonly used filters in DSP. In this task,…

A: Types of filters Band stop filter Band pass filter Low pass filter High pass filter

Q: Solve the following: Compute the total impedance (Z) What is the total current (I)? Compute the…

A: In this question we will find total impedance , current and voltage drop across each components ....

Q: 10. A signal is band limited to 3.6 and three other signals are band limited to 1.2 kHz each. These…

A: Given a signal is band limited to 3.6 and three other signals are band limited to 1.2 kHz each…

Q: Consider the differential amplifier shown below with RB = 50KQ and Rc = 10KQ and assume the BJT…

A: The Given is differential Amplifier RB=50kΩ and RC=10kΩ To assume the BJT Parameters for Q1,Q2,Q3…

Q: B) For the circuit shown below, the switch is opened for a long time, at t=0 it is closed. i) Find…

Q: 2. Prove the followings: a) b) X+XY=X+YA (X+Y)(X+Y)(X + Z) = XZ

A: a) Given: To prove: X+YX+Y¯X¯+Z=XZ

Q: 3. What is the resistance of a piece of material whose length is 2 cm, area is 4 cm² and resistivity…

A: Given a piece of material with, Length, l = 2 cm Area, A = 4 cm2 Resistivity, ρ=60×10-5 Ω-m

Q: A)- Explain the trade-offs between relays and PLCs for control Applications. (

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

Q: If the skin temperature is 310 K and area of the human surface is approximately 1.8m2 then the power…

A: For the given skin temperature and area we need to compute power radiated from the surface of the…

Q: z₁ www www Where: Z₁ = 20 Z₂ = 30 Z3 = 40 ww 24 u mor ww 26 Z M mor weeee Mw 57 Z₁ = 1+j5 2 Z5 =…

Q: Explain the trade-offs between relays and PLCS for control Applications?

A: Relay is a conventional electro mechanical device used for protection and controlling an electrical…

Q: Write and verify: A behavioral HDL model of the BCD ripple counter described in Problem 6.13.

A: BCD ripple counter:- It is digital serial counter which counts ten digits. It is reset for the every…

Q: a) The reason of high input resistance of the MOSFET is: 1. The insulator layer. 2. The reverse…

A: Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: A circuit has an ac voltage source and a resistor and capacitor connected in series. There is no…

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

Q: Compute the power dissipated by each resistor Compute the total power dissipated 230 V M 300 Ω R₁ M…

A: Given circuit,

Q: 2. A three-phase balanced load has a 10-ohm resistance in each of its phases. The load is supplied…

Q: The ideal maximum voltage gain of a CD amplifier is: 1. gmRs. 2. -gmRd. 3. 1.

A: In this question we will write ideal maximum voltage gain of common drain amplifier....

Q: The primary winding of a start-delta (y∆) connected 500VA transformer is supplied with line voltage…

A: Given VL primary = 200V

Q: As an Electronic Engineer in XYZ Analog IC Design Centre, you are required to design Operational…

Concept explainers

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.

Question

For a 20 KVA, 480/220 V, 60 Hz, single phase transformer.
Calculate the phasor load current if the transformer is supplying a
12.6 KW load at 0.881 lagging power factor, if the load voltage is
220 V.
Select one:
57.265-j30.75 Amp
Ob. 30.75-j57.265 Amp
c. None
Cd. 57.265+j30.75 Amp

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 by step

Solved in 2 steps

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

An ideal transformer has no real or reactive power loss. (a) True (b) False
A 23/230-kV step-up transformer feeds a three-phase transmission line, which in turn supplies a 150-MVA,0.8 lagging power factor load through a step-down 230/23-kV transformer. The impedance of the line and transformers at 230kVis18+j60. Determine the tap setting for each transformer to maintain the voltage at the load at 23 kV.
A 250/125 V, five kVA single-phase transformer has a primary resistance of 0.2 ohms and reactance of 0.75 ohms. The secondary resistance is 0.05 ohm and reactance of 0.2 ohms.a) Determine its regulation while supplying full load on 0.8 leading p.f.b) The secondary terminal voltage on full load and 0.8 leading p.f.Ans.: -0.4.88%; 131.1
1) Calculate the maximum RMS current in p.u. that guarantees the equality of losses between the deformed and non-deformed regime for a power transformer equal to 400 kVA with Pcp = 6% in two cases: a) the transformer feeds a twelve-phase converter Idc=40 A b) the transformer feeds a six-phase converter Idc=40 A.
In a transformer that has 10 times more turns on the secondary side (side 2) than on the primary side (side 1), the magnitude of the voltage/EMF across the windings on the secondary side, E₂ will be... O a.... 10 times lower than the voltage/emf on the primary side, E₁. O b.... the same as the voltage/emf on the primary side. O c.... always zero regardless of the voltage on the primary side, E₁. O d.... 10 times higher than the voltage/emf on the primary side, E₁.
1-A single-phase power system is shown in Figure below. The power source feeds a 100- kVA 14/2.4-kV transformer through a feeder impedance of 40.0 + j150 &. The transformer's equivalent series impedance referred to its low-voltage side is 0.12 + j0.5 &. The load on the transformer is 90 kW at 0.80 PF lagging and 2300 V. 40n j150n 0.12n j0.5n Load 90 kW 0.85 PF lagging source Source Feeder Transformer Load (transmission line) (a) What is the voltage at the power source of the system? (b) What is the power losses in the feeder?
A transformer has a reactive drop of 6% and a resistive drop of 2.5%. Determine the lagging power factor at which the voltage regulation is maximum and the value of this regulation.[0.385 lag]
ََQ/ 400/200 V, single-phase transformer is supplying a load of 50A at a power factor of 0.866 lagging. The no-load current is 2A at 0.208 p.f. lagging. .. Find The primary current is ...... A * The primary power factor is ........ lagging *
all äabl (CME 446) 1 If F3=0.1 and Z3=45 Q, then the impedance of the next stage in the multi-section transformer is: of O a. 40.5 stion O b. 49.5 O C. 55 O d. None O e. 36.8 s page Next page
A single-phase transformer has a voltage ratio on open circuit of 7900/660 V. The primary and secondary resistances are 0.55 ohm and 0.035 ohm respectively. The corresponding leakage reactances being 4.22 ohm and 0.18 ohm. The load is equivalent to a coil of resistance 3.85 ohm and inductive reactance of 4.2 ohm. Determine the terminal voltage of the transformer and the output in kW when supplying a given load using approximate equivalent circuit when the applied voltage is 7912 V. Your answer
A 3-phase 100OKVA, 11000/416 transformer is delta- connected on the primary and star connected on the secondary. The primary resistance / phase is 1.45 Q and secondary resistance/phase is 0.0006 Q. determine the efficiency on full-load at 0.85 power factor lagging if the iron loss is 1770 W. *
The step down DC chopper uses DC source voltage V(dc) = 200 V and resistive load impedance of 10 ohm. The duty cycle is 0.4 the voltage drop across the switch may be taken as zero, Calculate : (a) Average and RMS value of output voltage. (b) Average and RMS value of output current.