If a transmission line is short circuited, the tester would show an impedance of
Q: Calculate at 6 MHz the position and length of a shorted shunt stub that will match the load…
A:
Q: Which is the first equipment seen in the substation while coming from transmission system: a)…
A: A lightning arrester (also known as a lightning isolator) is a equipment is the first device…
Q: Calculate the line and phase voltage.
A: In this question, 3 phase star connected source supplied to the three phase unbalanced load. Find…
Q: Over string of three phase transmission line has a four insulators and Ce=0.12 C. If the voltage…
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Q: In star connection Vb=V[20 Calculate all line to line voltage?
A: Solution -
Q: Over string of three phase transmission line has a four insulators and Ce= 0.12 C. If the voltage…
A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…
Q: B: A string of transmission line has 3 insulators, the total voltage distributed on them. Determine…
A: Over head line insulators: Always placed between tower and power conductor. The material should be…
Q: 7.05 Three 30:1 step down transformers are connected wye-delta for stepping down th 132,000-volt…
A: Given, KVA rating = 5000 KVAtransformer ratio = 30:1 (step down Xer)V1L = 132 KVV2L =?KVA =? VP1…
Q: A transmission line having a characteristic impedance of 75 ohms is delivering power to a 150-ohm…
A:
Q: For a 132 kV transmission, the number of suspension insulators required is
A: number of insulator n = line voltage3×disk voltage
Q: A 50-ohm coaxial cable is terminated by a complex impedance equal to 75+j25. What is the voltage…
A: In this question we need to find a voltage standing wave ratio.
Q: Design a system with two generators (at 11 kV) and three loads, two transformers and four…
A: system design requirements loads =3 transformers =2 transmission line = 4 generators =2 at 11 kV…
Q: 3-phase star-connected alternator
A: In star connected 3 phase system Iph = VI3Z
Q: q1)Please need correct answer fast
A:
Q: 1- The Smith chart consists of the a) Constant R and variable X circles c) Constant R and constant X…
A: As per guidelines we are supposed to do only first 3 questions so please upload others seperately.
Q: If the maximum and minimum voltages on a transmission line are 4 V and 2 V, respectively, for a…
A: Given, Maximum voltage on a transmission line is Vmax = 4 volts Minimum voltage on a transmission…
Q: 5:1 transformers are connected in Delta-Wye to step up the voltage at the beginning of a 12,300-volt…
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Q: A long transmission line of 370 N surge impedance is connected to two cables each of surge impedance…
A: According to question we have to calculate the value of junction voltage, current wave and voltage…
Q: In a 50 Hz short transmission line, receiving end phase voltage is 172.1 V and receiving end phase…
A: The solution can be achieved as follows.
Q: The conductors of the overhead transmission lines are а. None of the Above O b. Stranded Conductors…
A: we need to tell what type of conductors are used in the overhead transmission lines.
Q: If the test result of a long transmission line are ( for open receiving Vs=110V, Is=3.7A, Ws=40…
A: Given: The test results of a long transmission line are: For open receiving: Vs=110V, Is=3.7A, Ws=40…
Q: Q1. A lossless T-junction power divider has a source impedance of 50 Ohm. Find the output…
A: Given: A lossless T-junction power divider has a source impedance of 50 Ohm. To find: Find the…
Q: 2. A three-phase 60-hz transmission line has its conductors arranged in a triangular formation
A:
Q: Determine the per phase nominal impedance of a 30 MVA, 15kV three-phase alternator
A: we need to determine the per phase nominal impedance.
Q: 3 Phase Losses in the transmission line Per phase resistance of the transmission line
A:
Q: Voltage regulation of a transmission line should be O a. as low as possible O b. None of the answers…
A:
Q: Voltage control method which works by improving voltage at any point in a line is .......... series…
A: Given Voltage control method is improve voltage at a point by
Q: Chose the Substations do not change the Voltage Level Switching Substations O b. Converting…
A: We need to tell about the substations.
Q: When a line was terminated by any other impedance than the characteristi Select one: O A Totally…
A: Transmission lines
Q: When the temperature increases, the tension of the transmission line will and the sag will А.…
A: In this we will write effect of temperature on sag and tension of transmission line...
Q: An over head transmission line supported from two towers location at the same level. The distance…
A: A sag in the transmission line is defined as the vertical distance between the wire and its tower…
Q: All Aluminum Conductor Cables are bare conductors. Select one: O True O False
A: All Aluminum Conductor Cables are bare conductors.
Q: Show the connection diagram of CTs and the relay for the differential protection of a 132/33 kV, Y-∆…
A: The current Transformer is an electrical device that steps down the current into a measuring range.…
Q: Quèstion 19 What is the operating voltage range (in kV) of a medium transmission line? O 20 to 100…
A: Given Operation range of medium transmission line
Q: A load impedance of (200+j0) ohm is to be matched with a 50 ohm transmission line using a quarter…
A: Quarter wave transformer is an impedance matching device and it resides between the transmission…
Q: parallel plate transmission line.
A: Parallel Plate Transmission Line A Parallel Plate Transmission Line consist of two conducting…
Q: . Three-Phase Transmission Lines always only have three cables.
A:
Q: Incoming and outgoing lines in a substation are connected to a Busbar. Select one: True False
A: We need to tell about given statement is true or false .
Q: Voltage control method which works by improving voltage at any point in a line is O tap changing…
A: To maintain a constant voltage profile in the transmission line, it is important to do compensation…
Q: For the following power system if the transmitted power is (0.8 p.u), and the sending end voltage…
A: In this question, we need to explain the stability of the given system. Where power transmit =0.8pu…
Q: In transmission substation, the compensation used is of both inductive and capacitive in nature.
A: To maintain a constant voltage profile in the transmission line, it is important to do compensation…
Q: Q1/ What is the cause of low and high voltages in electrical transmission lines from the receiving…
A: Given: Low and high voltage in electrical transmission lines
Q: Which one of the following component is also available inside Power Generation Station?: a. Motor b.…
A: Transformer is used to step down or step up the voltage.
Q: In the Open-circuit test of the transformer (OC TEST), wattmeter measures 4.5 kW, in the short-…
A:
Q: The CT ratio and PT ratio to protect a line are 240 and 2000, respectively. If the impedance of each…
A: Given: CT ratio=240 PT ratio=2000 Line impedance=ZL=10? Line impedance is the ratio of ZL=VPIP
Q: 5- Which one of the following protection methods is unused for transmission line protection? O A.…
A: Transmission line protection: Fuses and reclosers: Reclosers detect phase and phase to earth…
Q: In a transmission line,
A:
Q: 12-9. Determine the SWR for a transmission line with maximum voltage standing-wave ampl Vmax = 6 V…
A: It is given that: Vmax=6 VVmin=0.5 V
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- The reactance of a generator is given as 0.1 pu based on the generator of 17 KV, 300 MVA. Determine the pu reactance on a base of 17 KV, 250 MVA. New pu reactance is.......In the circuit in Figure 2, the capacitor connected to the a-b terminals of the transformer anda circuit consisting of resistance is defined as a load circuit. a)Find the average power spent by the load circuit? b) How much of the average power calculated in a) by the resistance in the load circuit and how muchspent by the capacitor? Comment on the results obtained?1. A3-phase, star-connected alternator is rated at 15000 kVA, 11 kV. The armature resistance is I-5 S/phase and synchronous reactance is 300/phase. To what value will the terminal voltage rise when full-load at p.f. 0-8 lagging is switched off? [13970 V]
- (d) A non-liner load is connected to a 110 V, 50 Hz power supply. Determine whether the current of the 3rd order harmonic is positive-sequence, negative- sequence or zero-sequence.1.3 A 240 volts 50 Hz single phase ac source supplies a series load consisting of a resistor (40 ohms), a reactor (127.324 mH) and a capacitor (318.3 µF). Suppose that the frequency of the source can be varied at will. 1.3.1 Determine the maximum load current. 1.3.2 Determine the source frequency for maximum load current. 1.3.3 What is the name of this frequency? 1.3.4 Determine the load power factor. 1.3.5 What is the name of the sourceIf you have 3-phase power and you need to step down (or up) in 3-phase voltage, how many single-phase transformers are needed? Explain.
- primary lines exist in electrical post, wht is the range of voltage passing thru this part of the post. A. 400 V B. 230 V C. 10 000 V D. 13800VTransformers.60. An RLC series circuit connected to a 110-volt and 50-cycle AC source, contains the following series resistances and reactances: R1=10 ohm, R2= 15, XL1=20 ohms, XL2=25 ohms, XC= 40 ohms. Find the real power. a. 65.3899 b. 392.4372 c. 397.848 d. 588.6559
- 50. A series resistance-capacitance (R-C) circuit is connected to 230-volt, 50 cycle AC source. The current through the resistor is 45.45 A and the power taken by the circuit is 5,000 watts. Compute the following: a. Ohmic value of the resistor b. Capacitive reactance E. capacitance in microfarade = 0 Q1: What does happen if we change two currents? a. Q2: What does happen if we have a three-phase four poles machine? Q3: What does happen if we have a two-phase two poles machine? e = 0 Q4: What does happen if we apply a capacitance in phase b and then use same voltage for both phase. Dr. Ali Ki. pw --Explain the principles of power quality in electrical systems and the factors affecting it, including harmonics and voltage sags.