Draw the different combination of 3 phase connection
Q: QUESTION TWO Power transformers are used in the power system to change the voltage levels to a level…
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Q: What would be the same results of this quesiton if the circuit was single phase 1000v?
A: If True power is single phase i.e.,P1ϕ=10kWV1ϕ=1000VI1ϕ=12.33 A
Q: The kVA and kW inputs of 3-phase star connected system are 50 and 17 respectively. The KVAR input is
A: KVA input (S) = 50 KVA KW input (P) = 17 KW KVAR input (Q) = ? KVA input is called apparent power…
Q: The power measurement in star connection by using two wattmeter method, the ammeter is used to…
A: Ammeter : ammeter is electronic device which used to measure current of circuit.
Q: The sequence components have same voltage magnitude.
A: This problem is based on the sequence components
Q: The kVA and kW inputs of 3-phase star connected system are 44 and 15 respectively. The KVAR input is
A: Given:- kVA input,S = 44 kW input,P = 15
Q: In 3-phase system, the power consumed by star connected load is _______________times less than delta…
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Q: In 3-phase system, a delta connected load draws 3 times greater current than the star connected…
A: the three-phase connection load can exist in two main configurations, Star connection Delta…
Q: In the two wattmeter method, the current coil are connected in parallel to the load and pressure…
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Q: Figure 4 (c) shows two (2) 11 kV/415V distribution transformers are connected using 2 incomings with…
A: For maintenance of a component in the power system, we have to flow the thumb rule 1st of all we…
Q: In 3-phase system, the power consumed by star connected load is _______________times less than delta…
A: FIND EXPLANATION BELOW
Q: For the following schematic, if a double-line ground fault occurs at node 5, calculate the currents…
A: The single-line diagram of the power system is given as For fault analysis, we consider only the…
Q: 10. At star connection unbalanced load system the neutral current is. c. less than zero b. greater…
A: According to the ideal transformer model, the primary winding links all the turns on all the other…
Q: Total power of the three-phase balanced star connected system is the sum of the power consumed by…
A: The power consumed by single phase load is given by: P1-ϕ=Vph.Iph.cosϕ.....(1)
Q: In a delta connected load, the line current and phase current is equal. True or false
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Q: In 3-phase system, the power consumed by delta connected load is star connected load. O 3 times…
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Q: pure resistive circuit
A: For finding the phase between voltage and current , we will take an alternating voltage supply in…
Q: The kVA and kW inputs of 3-phase star connected system are 48 and 29 respectively. The KVAR input is
A: Given parameters are as follows:-
Q: Power transformers are used in the power system to change the voltage levels to a level suitable for…
A: We are authorized to answer three subparts at a time. Since you have not mentioned which part you…
Q: what is the value of line current in a balanced star connected system O a. is not equal to zero O b.…
A: In star connection starting ends of three windings are connected to common terminals.
Q: In ZBus building KRON bus elimination technique is used in
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Q: Explain the Balanced condition and unbalanced condition in an LVDT with a neat schematic sketch.…
A: To explain the Balanced condition and unbalanced condition in an LVDT
Q: Three impedances (4-j6) ohm, (6+j8) ohm, and (5-j3) ohms are connected in parallel. Calculate the…
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Q: Q.1 A single phase load of 100kv is connected across lines b and c of a 3-phase supply of 3.3kv.
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Q: A 5-MVA, 13.8 kV/480 V, 5% impedance transformer is tapped at 13.8 kV line where the Thevenin’s…
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Q: State three (3) necessary conditions to be satisfied when paralleling two power transformers.
A: Conditions for satisfactory operation of trasfotransin parallel: 1. Polarities of the transformers…
Q: Explain the Balanced condition and unbalanced condition in an LVDT with a neat schematic sketch
A: To Explain the Balanced condition and unbalanced condition in an LVDT with a neat schematic sketch.
Q: In a three-phase circuit with symmetrical load conditions, each phase has Select one: O a. One…
A: Correct option is C As we all know in a three phase symmetrical load each phase has an equal amount…
Q: A/C units that operate at [Blank] or less may be cord-and-plug-connected. Select one: a.250V, 1…
A: AC units operate at a 230V , 50Hz, single phase supply.
Q: Question 6 Which of the following has the highest percentage of occurrence in a power networl L-L…
A: In this question , we will find which fault has highest percentage of occurrence...
Q: The highly severe fault in a power system is L-G fault L-L fault L-L-G fault 3-Phase fault
A: 3 phase fault is most sever in the power system because in three phase fault negative sequence and…
Q: In which of the following the positive, negative, and zero sequence impedances have different…
A: In case of Generators the positive, negative and zero sequence impedances have different…
Q: 4) Reduce the block diagram of the system using Mason's Rule. 24
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Q: Create a DC series circuit on line consisting of three (3) 1kΩ resistors and a 20 Vp DC power…
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Q: In a balanced three-phase load, each phase has A power consumption equal to (√3VL) IL…
A: 1)A balanced three-phase network is one in which the impedances in the three phases are identical.…
Q: Match the following Junction Point where one end of all three phase loads joined together Choose...…
A: In this question , we will match given statements..
Q: In which of the following the positive, negative, and zero sequence impedances have different…
A: The positive sequence impedance and negative sequence impedance magnitude is same in case of the…
Q: Fill in the blanks: Q. Phase __________________ Line is Better known as PAL.
A: Phase Alternating Line (PAL) is an Analog color coding system used in television broadcasting…
Q: In the two wattmeter method, the current coil are connected in series to load and pressure coil is…
A: The two wattmeter method is used to measure the power of a 3 phase, three wire star or delta…
Q: The phase sequence of positive sequence current will be a. Unit matrix b. a-b-c c. b-a-c d. a-c-b
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Q: In 3-phase star connected system, the voltage available between any pair of terminals is called
A: We know that , In three phase star connection The line current which is equal to…
Q: Classification of substation in detail
A: Substation is a very important unit of a power system. It is a channel through which electricity…
Q: Match the following Each load will be connected between two phase wires Choose... Power measured by…
A: Given, Match the following Each load will be connected between two phase wires Power measured by…
Q: In 3-phase balanced delta connected system, the voltage induced in each coil is called
A: In a delta-connected system, if the finished terminal of one winding is connected to the beginning…
Q: What will happen in each of these systems to the phase voltages of the load, if one of the source…
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Q: A 3-phase, 11 kV, 25 MVA generator with X, 0-05 p.u.. X, = 0.2 p.u. and X, = 0-2 p.u. is grounded…
A: We have a 3-phase generator as shown in figure. With given data, Zero sequence reactance (X0) = 0.05…
Q: A 3-phase, 200 KVA, 11/0.4 kv transformer is connected as delta/star. The protective transformers on…
A: CT must be selected with the proper CT ratio. Due to improper CT ratio, there exists a difference in…
Q: Differentiate series connection from a parallel connection based on the electrical characteristic
A: This can characterized by voltage and current distribution
Q: Branch - circuit conductors must have an ampacity not less than? Served. A…
A: According to the NEC codes, there are two code language such that, 210.19(A) (a) The branch circuit…
Q: In a three phase - four wire star connected system, the three outer wires are called as
A: In three phase -4 wire star connection system the three outer wire are
Draw the different combination of 3 phase connection
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- The phase sequence of positive sequence current will be a. Unit matrix b. a-b-c c. b-a-c d. a-c-bHow to measure the B phase voltage in three phase star connected system? a. Between B phase and R phase b. Between B phase and Y phase c. Between B phase and Neutral d. Between R phase and NeutralIn series-connected ac circuit, the value of the equivalent admittance of the circuit is equal to the reciprocal of phasor sum of the reciprocal of the individual admittancesTrue or false
- draw the impedance diagram in per unitDoes an open- operation, the kVA rating compared to that of the original thr-phase bank is (a) 2/3 (b) 58 (c) 1When working with balanced three-phase circuits, per-phase analysis is commonly done after converting loads to Y loads, thereby solving only one phase of the circuit. (a)True (b)False
- Consider the single-Line diagram of a power system shown in Figure 3.42 with equipment ratings given: Generator G1: 50MVA,13.2kV,x=0.15p.u. Generator G2: 20MVA,13.8kV,x=0.15p.u. Three-phase -Y transformer T1: 80MVA,13.2/165YkV,X=0.1p.u. Three-phase Y- transformer T2: 40MVA,165Y/13.8kV,X=0.1p.u. Load: 40MVA,0.8PFlagging,operatingat150kV Choose a base of 100 MVA for the system and 132-kV base in the transmission-line circuit. Let the load be modeled as a parallel combination of resistance and inductance. Neglect transformer phase shifts. Draw a per-phase equivalent circuit of the system showing all impedances in per unit.For the system shown in Figure 3.34. draw an impedance diagram in per unit by choosing 100 kVA to be the base kVA and 2400 V as the base voltage for the generators.Determine the positive- and negative-sequence phase shifts for the three- phase transformers shown in Figure 3.36.