1. Given : 20 KVA ( instruments on Primary side) 2200/220 V SCT :V = 205 volts OCT: V = 220 volts %3D 25 Hz I = 9.1 Amperes I = 1.52 Amperes W = 465 Watts W = 161 Watts Find : a. %VR and Eff. at F.L. , 0.866 pf leading b. %VR and Eff. at half load, 0.80 pf lagging %3D

1. Given : 20 KVA ( instruments on Primary side) 2200/220 V SCT :V = 205 volts OCT: V = 220 volts %3D 25 Hz I = 9.1 Amperes I = 1.52 Amperes W = 465 Watts W = 161 Watts Find : a. %VR and Eff. at F.L. , 0.866 pf leading b. %VR and Eff. at half load, 0.80 pf lagging %3D

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

Chapter2: Fundamentals

Section: Chapter Questions

Problem 2.45P: Two balanced Y-connected loads, one drawing 10 kW at 0.8 power factor lagging and the other IS kW at...

See similar textbooks

Related questions

Q: 3. How many different categories are available for the methods of preparing optical glasses? a) 1 b)...

Q: 11. An inductor is connected to a 60-Hz circuit. The ir inductor? a. 0.2 H b. 5 H с. 284 Н d. 4524 H

Q: use of quartz

A: Quartz is a hard, crystalline mineral composed of silica it is most commonly used for making of os...

Q: V2 R1 VT 30Vpk SOH2 1. Solve IT, V1, V2, and VT 2. VR, Vc in polar form

Q: A 3-phase, slip-ring, induction motor with star-connected rotor has an induced e.m.f. of 120 volts b...

Q: A current source in a linear circuit has is = 9 cos(440πt - 33o) A. Calculate is at t = 4 ms. Rou...

Q: Determine: (a) Av2=Vc2/Vb2 (b) Av1=Vc1/Vb1 (c) Vo if Vs=0.5mVp-p (d) Ais=Io/Is

A: Given the circuit, as shown below: We need to determine:

Q: Two-point charges are arranged on the x-y coordinate system as follows: q1 = 1.0 µC at (0,4 92 = 2.3...

A: The solution is given below

Q: -8 V VC ·VCE + 2.2 k2 1.8 k2 6 10 V

Q: a step index fibre has core and cladding indices 1.466 and 1.460 respectively the fibre supports onl...

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for yo...

Q: A charge of +3.0x10^-5 C is 10cm from a charge of +50x10^-6C. Calculate the magnitude of the repulsi...

Q: 2Ω 4Ω 3 A( ЗА( 7 A Reference node

Q: n 800-m 2-wire d.c. distributor AB fed from both ends is uniformly loaded at the rate of 1.25 A/mete...

Q: RADIO SERIES CIRCUIT V = 2 V Ω %3D V3 = 6 V R3 = 0 I3 = <0 V2 = R2 = 12 = %3D lo = 100 mA Vo = 9 V C...

A: We have given;V3=6VV1=2VIo=100mAVo=9V

Q: 1. Solve for the (a) total resistance and (b) total current of a 40 V AC voltage, with 100 Hz freque...

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

Q: 2. A 20 KVA, 440 /220 V single phase 50 hz transformer has an iron loss of 324 W. The copper loss is...

A: In this question, Single phase transformer S= 20kVA , 440/220V Iron losses = 324W Copper loss at ha...

Q: B. Find the Equivalent resistance for given circuit ww 42 ww B 72

Q: 8. Two capacitors, a 20 µF and a 30 µl а. 12 иF b. 50 µF

Q: A conducting sphere is placed in an electrolyte solution (salty water). The radius of this sphere is...

A: A conducting sphere is placed in an electrolyte solution(salty water). The radius of this sphere is ...

Q: . If (–2 – 2/3j) is divided by (–1+ v3j), the quotient in trigonometric form is

Q: Use Maxwell Mesh analysis to solve the current passing through 4 kiloohm resistor.

Q: In a super heterodyne receiver, the incoming RF signal is at 25 dBμ, the RF amplifier has a 30 dB ga...

A: Input signal Pi=25 dBμRF amplifier gainPGRF=30 dBMixer lossPGM=-10 dBIF AmpliferPGIF=20 dBdemodulat...

Q: Solve for the value of inductive reactance if R1 = 492 ohms, R2 = 19 ohms and L3 = 5.2 mH. Round you...

A: For a circuit -The value of resistors are,R1=492 ΩR2=19 ΩThe value of inductor is,L3=5.2mH

Q: ·Calculate the output voltage and zener diode current in the regulator circuit 15 V (B = 100) V,o- (...

A: In this question, We need to calculate the output voltage and zener diode current in the regulator ...

Q: 1. Using Thevenin's theorem, find the current through load Resistor (R=10 k) for the circuit shown i...

A: In this question, We need to calculate the current in the load resistance. If load resistance RL =...

Q: B. Determine the six roots of (717.925 +j126.589). Express in polar form.

Q: Symbolically determine the input impedance of the circuit shown below.

Q: Problem 24: Use mesh analysis, find the currents flow through each voltage source. R1 R3 R5 2Ω 4Ω 3 ...

Q: An alternatorhas 18 slots/pole and the first coil lies in slots 1 and 16. Calculate the pitch factor...

A: The solution is given below

Q: 4 Grve three possible ways to express the function F with eight or fewer literals F = (A,B. C.D)= (0...

Q: What is the equivalent of 1 Farad into ratio? Select one: a. 1 Joule per Volt b. 1 Coulomb p...

A: given C=1 Farad

Q: Given the sinusoidal voltage v(t) = 52 cos (38t + 12o) V, find the frequency (in Hertz).

Q: 316 Q R 10 H 100 μF

Q: band gap of Germa is 7.32ev at room temperature. Find the maximum wavelengin of excitation light sou...

A: Given thatEg=7.32evh=6.62×10-34j-sc=3×108m/s1eV=1.6×10-19j

Q: A two-wire d.c. distributor AB, 600 metres long is loaded as under : Distance from A (meters) : 150...

A: The above diagram is the distributor with its tapped currents. Let Ia be the current supplied from t...

Q: Find the output for the circuit: (use silicon diodes) R, =1 k2 D T Vout sv V "sv

A: Silicon diode will be on when voltage applied across it is greater than 0.7 volt. In the given quest...

Q: Exercise 3: The current flowing in a pn junction diode at room temperature is 2x10-7A, when the larg...

A: In this question , we have given reverse saturation current of diode ..We have to find out current o...

Q: voltage regulator is a device that maintains a fix what

A: voltage regulator is device that maintains constant voltage irrespective of input voltage variations...

Q: R(s) 10 C(s) K1 5 (s+2) K25 Consider the block diagram shown above 16/[s(s+4)]. (a) In the absence o...

Q: Determine the current I1, 12, and 13 in the network using a simplified model. I, 3.3 k2 R2 E = 20V* ...

A: First check the diodes weather they are on or off . If voltage across the diodes is greater than 0v ...

Q: For each of the following signals.

Q: One component that does not need to be installed in the correct orientation is a: a. Resistor b. Di...

Q: What should be done with light sources that are connected at each end of a cable while it's being r...

A: For proper safety, we should always take care of certain measures and steps needed to be taken while...

Q: balanced polyphase system

A: Polyphase system- A combination of two or more than two voltages with same voltage magnitude and fre...

Q: Find v, in the op amp circuit 50 k2 100 k2 100 k2 ww 25 k2 ww 100 k2 50 k2 50 kQ ww-

A: Given

Q: 8. Two capacitors, a 20 µF and a 30 µF, are connected in series. What is the total capacitance? a. 1...

A: Given two capacitors are connected in series, C1=20 μFC2=30 μF

Q: +40 V kN. 1 µF 22 MQ D Vas(Th) = 5 V Vps K = 120 x 10-6 A/V² Vaso = 12.48 V 1 µF G Vị . S VGs Yos = ...

A: This is a basic problem of MOSFET The solution is given below

Q: 1. Calculate the output voltage for the circuit of Fig. 15.48 for an input of V, = 3.5 mV ms. 2. Cal...

A: Given Inverting amplifier Input vi=3.5 mv

Q: 4) Reduce the block diagram of the system using Mason's Rule. 24

Q: Are Limit Switches available that cannot be used outdoors? Why?

A: The limit switch is the device that work on the electro-chemical property. The limit switch operate ...

Concept explainers

Single Phase AC Circuit

Alternating Current (AC) is a type of electric power in which the electric current changes, both in magnitude and direction, at regular intervals. This AC Circuits can deliver power in either a Single Phase system or a Three Phase system.

Question

1. Given :
20 KVA ( instruments on Primary
side)
2200/220 V SCT :V = 205 volts
OCT: V = 220 volts
%3D
25 Hz I = 9.1 Amperes I = 1.52
Amperes
W = 465 Watts W = 161 Watts
Find : a. %VR and Eff. at F.L. ,
0.866 pf leading
b. %VR and Eff. at half load, 0.80
pf lagging
%3D

Expert Solution

This question has been solved!

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

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Analysis of Single Phase and Three Phase System

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

13. In parallel-connected ac circuit, the total current though the circuit is always equal to the phasor sum of the individual current though each element. True False 14. In a R-C parallel circuit, R=10 ohms and Xc=10 ohms, the applied voltage is leading to the circuit total current by 45 degrees (assumed applied voltage is the reference). True False 15. In a R-C series circuit, applied voltage is in phase with the total current. True False
A 3-phase 60hz wye connected 2000kVA, 2300V alternator gives a short circuit current o 600A for a certain field excitation. With the same excitation, the open circuit voltage was 900V. The resistance between a pair of terminals was 0.12 ohm. Find the full load regulation at a. unity pf b. 0.8 lag pf
The line voltage of a wye connected 2400V 600 KVA unity power factor AC generator is reconnected for delta operation. What is the new voltage, current, and KVA rating? A) voltage a) 1385.6V b) 2400V c) 4156.9V d) none of the above B) current a) 83.34A b) 144.34A c) 250A d) none of the above C) KVA a)600 kva b) 1039.23 kva c) 1257 kva d) none of the above
3- phase power don't we need to multiply with 3? also Vt=13.1 KV, so shouldn't it be 13.1e3? in the power calc?
a. Using Ohm’s Law, compute the voltage and current for eachcomponent. Use the formula Z = Vt / It. b. Compute and record the magnitude and phase angle of the impedanceusing the equation Z= R + RL + jXL – JXC. Use 3uF for the value of C,1.006H for the value of L and for the resistance is computed based onthe specification of the lamp. c. Compute and record for the total power using the formula: Pcomputed = Scosθ d. Compute and record the reactive power and apparent power using theformula Scomputed = V2/ZQcomputed = √S2 − P2 e. Compute for the reactive power (measure) and apparent power(measured) using the formula.Q = PtanθS = P/ cos θ f. Compute the percent difference between the measure and the computedvalue of the impedance.
Three impedances Z1, Z2 and ZL are connected in tee. The impedance Z1 is connected in series with the supply voltage V1 while the impedance Z2 is connected in series with the voltage V2. If V1 = 200 volts, V2 = 120 volts, Z1 = (5+j4) ohms, Z2 = (10-j13) ohms, and ZL. Calculate the maximum power transferred to load impedance ZL . Use Maximum power transfer theorem.
Calculate the magnitude of the load's line voltage. (Answer : VL=205.2 Vrms)
The following are the reading of the Power Measurement in a Three Phase Delta Connected System ( Experiment -2) Wattmeter-1 reading (W1)= 43.03 watts. Wattmeter-2 reading(W2)= 41.4 watts. Phase current (Ip) =0.53 Amps. Line Voltage (VL) = 222 Volts. The Apparent power (S) is
0 A 250 KVA, 440-volt, three-phase load is to be supplied from a 2,300 volt, three-phase line. Specify the transformers required for: (a) wye-delta connection, and, (b) wye wye connection. Ans. ,325:44 hat 0 v , 83.3 KVA; 1,325:254.04; 83.3 KVA
A star connected system has impedance as Z= 8+j6 Ω in each phase. It is fed from 400 V, 3Phase AC supply. Find the active and reactive powers. If power measurement is done by two wattmeter method, then calculate the readings of each wattmeter. Also draw the connection diagram (Phasor diagram) for this power measurement
an R-L circuit takes a current of 7amp that lags behind the 231-volt source by 35elec deg. calculate the power factor, power, impedance, resistance, and inductive reactance of the circuit.
According to the relevant legislation, the reactive energy tariff is not applied to household subscribers with connection power in kW and below, lighting subscribers, single-phase subscribers and producers that provide energy (generation) to the system? a) 5. b) 12 c) 9. d) 50