A three-phase double circuit line has a horizontal spacing of 40 ft and a vertical spacing between adjacent levels of 25 ft. Determine the mutual GMD of the line

Q: Consider the three-phase four-wire 416-V secondary system with balanced per-phase loads at A, B, and…

A: Given three phase four wire system

Q: Three-bus system network consists of TWO generators located at buses 1 and 2 and TWO loads located…

A: The Given is V1=j0.5∠0° and V2=1.03, PG2=2pu SD2=0.5+j0.2 and SD3=0.6-j0.25 The Given Matrix is…

Q: A three-phase overhead transmission line operating at 50 Hz consists of ACSR Drake conductors. The…

A: Given,For the three-phase overhead trnsmission line,Operating frequency, f=50 Hz.For the conductor…

Q: Problem 3.5: From a 3-phase, 480 V generator switchboard, a feeder takes 3-phase power to two…

A: A feeder takes 3 phase power at the other end through cables and transformer Combined series…

Q: 3. A balanced delta connected load of "X" Q- per phase is connected at the end of a three-phase…

A: Given  The connected load X=13+j16 Ω The line impedance G=3+j6 Ω The line-to-line voltage Vab=207.85…

Q: 3. Which statement below is False, Answer: (A) Any arbitrary set of three phasor can be represented…

A: Types of sequence in unbalanced system Negative sequence Positive sequence Zero sequence

Q: Please answer this diligently. Other answers in the internet seems wrong. Please help me understand…

A:

Q: In a three phase overhead system, each line is suspended by a string of three insulator. The voltage…

A:

Q: 2) Capacitance of a three-phase line with equilateral spacing, and a three-phase 60-Hz line has flat…

A: Given Conductor diameter,d =3.2×cmr=d2=3.22=1.64 cmDistance between conductors…

Q: In a string of suspension insulator with three units,the line unit has 15kV and k=0.15. The voltage…

A:

Q: The fault current level of a circuit breaker used in a transmission line with phase voltage 4.6 kV…

A: Fault current level?  of the breaking capacity 70MVA Voltages = 4.6kV

Q: The positive-sequence reactances for the power system shown below are in per unit on a common MVA…

A: It is given that:

Q: please write introduction about Analysis of 3 Phase star connected circuit Note:please write details…

A:

Q: symmetrical short-circuit current

A: Transformer- A device that transfers the electrical energy between two electrical circuits which are…

Q: Considering two parallel three-phase circuits that are close together, when calculating the…

A: whether the mutual coupling effects are significant enough to be included in the calculations or if…

Q: In a three phase overhead system , each line is suspended by a string of three insulator. The…

A:

Q: In case of unbalanced 3-Φ, 4-wire system % voltage drop is… not possible to estimate same as in…

A: it should estimate for each phase .

Q: In the following network, the voltage magnitudes at all buses are equal to 1 p.u., the voltag phase…

A: Given- Voltage magnitudes at all buses = 1 p.u. Voltage phase angles are small, Line resistance are…

Q: 6. Two balanced delta connected loads are connected in parallel across a 230V, three phase, 3wire…

A: Given: Line Voltage, VL=230V Impedance per phase are 20cos30° and 40cos-45°

Q: 2) A balanced A-connected load is fed by a three-phase supply for which phase C is open and phase A…

A: It is given that the phase C is open. So the current Ic=0. Ia=20∠0° A As there is no zero sequence…

Q: If the power system has 'n' number of generators, then the size of the B- coefficient matrix is…

A: As per the guidelines of Bartleby we supposed to answer first question only for remaining questions…

Q: The single line diagram of a power system is shown below. Load represented as impedance, (13.2) kV…

A: Given: The single line diagram of a power system is shown below: Load represented as impedance,…

Q: i. Some reasons for adopting high transmission line voltages are to improve -------and the…

A: Given that three fill in the blanks related to high transmission line voltages .

Q: 3. A three-phase, three wire, CBA system with an a line voltage of 150 Volt, has three impedances of…

A:

Q: A single-line diagram of a three-phase balanced system is given below. A bolted threephase short…

A: Given :  VHg=21kv taking 22000kvA  Base or we can say 22mvAM1 side= 11 kv M2 side =733 kvThevenin;s…

Q: A transmission line is composed of ACSR conductors consiting of eight aluminum strands and two steel…

A:

Q: a) The Newmont Mining Company at Ahafo in the Bono region of Ghana requested a dedicated power…

A: Solution (a) - Given,V=13.8 kVZ=95∠78° ΩY=0.01∠90.5° P=49MWcosθ=0.85L=120 km

Q: 2_ What case/cases in which the measured phase current include the three symmetrical components (…

A:

Q: The capacitance between the line to neutral of a three-phase 50 Hz, 66KV overhead line conductors…

A: In this question, line to neutral capacitance is given for horizontal configuration..We have to find…

Q: A transposed overhead transmission line has self-reactance (X;) and mutual reactance (Xm) as 0.5…

A: Given, A transposed overhead transmission line has, Self reactance, Xs=0.5 ohmkm Mutual reactance,…

Q: A three-phase load of 10 A (power factor 0.8 (end)) is fed from point “1” 600 m away from a…

A: (a) The active and reactive current distribution -

Q: A 3-phase, 132 kV, 50 Hz, and 200 km line has a resistance of 0.0765 ohm per km per phase,…

A: In the Question Following data is given. VR= 132 KVf= 50 Hz , ω = 100π…

Q: The capacitance between the line to neutral of a three-phase 50 Hz, 66KV overhead line conductors…

A: Capacitance between line to neutral i.e. phase capacitance is 7.4*10-7Farad/m Now in a 3-phase…

Q: A 45 km, three-phase 50 Hz transmission line is transferring average and reactive power of 1500 kW…

A:

Q: lease provide Handwritten answer

A:

Q: A 3-phase generator (30 MVA, 13.8 KV, 0.15) supplies two motors (rated at 20 MVA, 12.8 KV, 20%, and…

A: The one line diagram is shown below voltage in transmission line circuit=13.8×11513.2=120.23 kV…

Q: The fault current level of a circuit breaker used in a transmission line with phase voltage 4.6 kV…

A: Breaking capacity=50MVA Phase voltage=4.6kV

Q: A transmission line has a per unit impedance of 0.5 pu at 500 MVA and 132 kV base. The per unit…

A:

Q: A single-phase ring distributor is proposed for a newly constructed hospital for COVID 19 Pandemic…

A: Given: A single-phase ring distributor has the load points at 20A at 0.8 p.f lagging and 15A at 0.6…

Fault Analysis

In an electrical engineering system, a fault is an abnormal electric current flowing through the system, and fault analysis is the study of these faults. For instance, a short-circuit is a fault where the live wire touches the ground or neutral wire. If a circuit is interrupted by a failure of a current-carrying wire then an open circuit fault occurs. The open-circuit faults are also called series faults. One or more phases or ground may be involved in a three-phase fault or may occur only between two phases. Current flows into the earth in case of a ground fault or earth fault. For most situations, the prospective short circuit current of a fault that is predictable can be calculated. To limit the loss of service because of a failure, the protective devices can detect fault conditions and operate circuit breakers and also other devices. All phases equally can be affected in a poly-phase system which is known as symmetric electrical fault. The asymmetric fault becomes more complicated to analyze if only some phases are affected. By using methods such as symmetrical components, the power system analysis of these types of faults is often simplified. The main objective of power system protection is to design, detect, and interrupt power system faults.