Electrical of the Requirements in Technical Writing Presented to:

   ElectricalEngineering Department  Comparison betweenThree-phase System and Single-phase System An AnalyticalReport Presented as Partial Fulfillment of theRequirements inTechnical Writing   Presentedto:Prof. Rio S.AburidoENGL5 Instructor   Presentedby:Domingo,John Marvin D.

Guilalas,Mark Conrad Z.Torres,John Maynard L.  January23, 2018    Table of Contents Summary1.0 Introduction.

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3.Industrial Uses…..

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…………………………4            2.4.Complexity…………………………………………………………………………………………….4            2.5.Range of Application……………………………………………………………………………..53.0 Conclusions………………………………………………………………………………………………………54.0 Recommendations……………………………………………………………………………………………..55.0 References………………………………………………………………………………………………………..66.0 Appendices……………………………………………………………………………………………………….7         SUMMARYThree-phase system and single phase systems are everywhere. These systems can be usedto transmit power from the generation site to the consumer’s side. Thecomparisons between these two-systems are mainly their power transmission,economical cost, industrial uses, complexity and range of application.            Both systems can deliver thenecessary power to the consumers, but three-phase systems deliver constantpower, unlike in single phase, the power is pulsating. In terms of economicalcost, three-phase system costs less than single-phase system because of theamount of wire used.             In industrial applications, thethree-phase system is at its advantage over single phase because three-phasemotors have higher efficiency and better features.            Connection wise, the single phase isbetter because it uses a less complex design or connections of wires. Also,single-phase system has a broader range of application.            Generally, both systems have its ownadvantages and disadvantages. So, in terms of power distribution andconsumption, the industry utilizes both systems to provide flexible and betterservice.INTRODUCTIONDueto the continuous development of technology, the demand for power has risenthrough the years. In fact, almost everything around us uses electricity tofunction. Gadgets, appliances, machines, some cars, and many more are just someof the examples of the things we use every day that uses power. The electricalengineers then developed systems that will be able to distribute power from thegeneration site to the consumers. These systems are namely three-phase systemand single phase system. Thisanalytical report’s main objective is to show the strength and weaknesses ofboth single phase and three-phase system. Thisreport shows the difference of the two systems in each of the followingcomponents: Power transmission, economical Cost, industrial uses, complexityand range of application.  Single Phasesystem is a type of system which uses two-wire system while the three-phasesystem can either be a three wire or four wire system. Practically,the world needs both of these power systems. Each of the systems serve its ownpurpose in the community when it comes to industrial, commercial, and residentialbut in this study, the two systems will be compared side by side, emphasizingtheir strengths and weaknesses.   COMPONENTSPower Transmission            Power Transmission is the transmittingor delivering of power from the generation site to the consumers. Both of thesystems can transmit power but these two systems have their own respectivestrengths in the distribution of power.            In three-phase system, the powerdelivered is constant. This constant power is needed in large motors that arewidely used in the industry. While in single phase system, the power deliveredis pulsating. Pulsating power is not recommended to be used for large motorsbecause it will case vibrations and this will lower the motor’s efficiency. Thegraph of the power in a single phase system and three-phase system is shown infigure 1 and 2 respectively.      Figure1 Power in a single phase system       Figure2 Power in a three phase system  Asyou can see from figure 1, the power in a single phase system becomes 0 twotimes in each cycle while in three-phase system even though one of the line’spower becomes zero, the other two line’s power are not zero thus it can provideconstant power to the loads.Economical CostSincetransmission of power requires the use of wires, cost is a major component tobe considered. Out of the two systems, three-phase system is cheaper because ituses less amount of wire than single phase system for the same line voltage andpower delivered to the load. This can be proved by looking at the derivationbelow. (Assuming both of the wires are made from the same conductor and havethe same length.)                                                               (1)Eq.1 shows the power dissipated in a single phase system.                                             (2)Eq.2 shows the power dissipated in a three phase system.                                                                                                                                (3)Eq.3 shows the ratio between the power in a single phase and three-phase system.                                                                  (4)Eq.4 shows the equivalent equation of eq.3 after substituting the formula forresistance.                                                   (5)Eq.5 shows the ratio between the materials used in a single phase and three-phasesystem.By substituting the equation = from eq. 4 to eq.5 we getThis shows the single phase system uses33.333 percent more material compare to three-phase system.Industrial Uses            In the industry, mainly factories,uses large motors in order to speed things up and lessen manual labor. Thislarge motors need electricity to function but motors are designed in a way thatthey can either only be connected to a three-phase or a single phase.Therefore, there are two general types of motor, single phase motors andthree-phase motor. Three- phase motors are superior to single phase motors inmany ways. They are more efficient, more durable, cheaper , it gives higheroutput, weigh less and have self-starting capabilities. In short, three-phasemotors are better than single phase motors. Therefore, three-phase is thesystem that is more practical to be implemented in the industry.Complexity            Connection is also a thing to observe. In a single-phaseconnection, it only requires two wires to be used in order to supply power.With that said, it is obvious that the three-phase system uses three wires todo the same. The connections in three-phase systems are far more complicatedand complex. It requires a certain connection in order for it to work properly.The single-phase also requires a certain connection, but it being composed ofonly two wires makes it a less complex than a three-phase system.        Figure3 Source- Load combination in a single phase system         Figure4 Source- Load Combination in a three-phase system. Range of ApplicationInterms of range of application, single-phase system has a broader range ofapplication. It is because not all people consume large amount of power. Singlephase can provide enough and sufficient amount of power that is only needed forresidential uses. Also the everyday appliances that we use is specificallydesigned for single phase system. Also, as you can observe, the number ofresidential houses is very large compare to the number of factories, malls,etc. that need high amount of power. CONCLUSION            In this analytical report, the mainobjective is to show the different strengths and weaknesses of the two systems.Based on the findings, there is actually no system that is entirely better thanthe other one. Both systems have its own functions in the transmission anddistribution of power. It may be that one system is better in their featuresand components, but that doesn’t mean that the other one will be disregarded.It has been proven that the world need both of these systems to provide,produce, and supply power to the consumers in a way that everyone will besatisfied and no power is wasted.RECOMMENDATION            Since this report’s purpose toanalyse and compare the two systems and in the field these two systems arealready implemented, we cannot recommend anything at this point.  REFERENCES·        Single-Phase vs Three-Phase PowerExplained, August 30, 2017 by Tripp Litehttps://blog.tripplite.com/single-phase-vs-three-phase-power-explained/·        Why three phase better than singlephase, September 2, 2015 by DP Aurosish, O Engineer,KSKEnergy Ventures Ltd.https://www.quora.com/Why-is-three-phase-better-than-single-phase·        What’s the Difference Between SinglePhase and Three Phase AC Power Supplies?, CopyrightAEGIS Power Systems, Inc. 1995-2015.http://aegispower.com/index.php/2015-01-15-19-35-10/179-what-s-the-difference-between-single-phase-and-three-phase-ac-power-supplies·        FASCO Single-Phase Motor & FASCOThree-Phase Motor, Copyright 2018 Regal-BeloitCorporation. All rights reserved.https://industrialclearance.com.au/wp-content/uploads/TFCM-TFC-Y2HE-1-2-721×600.jpghttps://industrialclearance.com.au/wp-content/uploads/F-A-Y-6.jpg·        Three Phase SystemAdvantages over Single Phase Systemhttp://www.electricalbasicprojects.com/three-phase-system-advantages-over-single-phase-system/            APPENDICES”Power Distribution System”        ElectricalEngineering Department  Comparison betweenThree-phase System and Single-phase System An AnalyticalReport Presented as Partial Fulfillment of theRequirements inTechnical Writing   Presentedto:Prof. Rio S.AburidoENGL5 Instructor   Presentedby:Domingo,John Marvin D.Guilalas,Mark Conrad Z.Torres,John Maynard L.  January23, 2018    Table of Contents Summary1.0 Introduction………………………………………………………………………………………………………..12.0 Components………………………………………………………………………………………………………1            2.1.Power Transmission………………………………………………………………………………..2            2.2.Economical Cost…………………………………………………………………………………….3            2.3.Industrial Uses……………………………………………………………………………………….4            2.4.Complexity…………………………………………………………………………………………….4            2.5.Range of Application……………………………………………………………………………..53.0 Conclusions………………………………………………………………………………………………………54.0 Recommendations……………………………………………………………………………………………..55.0 References………………………………………………………………………………………………………..66.0 Appendices……………………………………………………………………………………………………….7         SUMMARYThree-phase system and single phase systems are everywhere. These systems can be usedto transmit power from the generation site to the consumer’s side. Thecomparisons between these two-systems are mainly their power transmission,economical cost, industrial uses, complexity and range of application.            Both systems can deliver thenecessary power to the consumers, but three-phase systems deliver constantpower, unlike in single phase, the power is pulsating. In terms of economicalcost, three-phase system costs less than single-phase system because of theamount of wire used.             In industrial applications, thethree-phase system is at its advantage over single phase because three-phasemotors have higher efficiency and better features.            Connection wise, the single phase isbetter because it uses a less complex design or connections of wires. Also,single-phase system has a broader range of application.            Generally, both systems have its ownadvantages and disadvantages. So, in terms of power distribution andconsumption, the industry utilizes both systems to provide flexible and betterservice.INTRODUCTIONDueto the continuous development of technology, the demand for power has risenthrough the years. In fact, almost everything around us uses electricity tofunction. Gadgets, appliances, machines, some cars, and many more are just someof the examples of the things we use every day that uses power. The electricalengineers then developed systems that will be able to distribute power from thegeneration site to the consumers. These systems are namely three-phase systemand single phase system. Thisanalytical report’s main objective is to show the strength and weaknesses ofboth single phase and three-phase system. Thisreport shows the difference of the two systems in each of the followingcomponents: Power transmission, economical Cost, industrial uses, complexityand range of application.  Single Phasesystem is a type of system which uses two-wire system while the three-phasesystem can either be a three wire or four wire system. Practically,the world needs both of these power systems. Each of the systems serve its ownpurpose in the community when it comes to industrial, commercial, and residentialbut in this study, the two systems will be compared side by side, emphasizingtheir strengths and weaknesses.   COMPONENTSPower Transmission            Power Transmission is the transmittingor delivering of power from the generation site to the consumers. Both of thesystems can transmit power but these two systems have their own respectivestrengths in the distribution of power.            In three-phase system, the powerdelivered is constant. This constant power is needed in large motors that arewidely used in the industry. While in single phase system, the power deliveredis pulsating. Pulsating power is not recommended to be used for large motorsbecause it will case vibrations and this will lower the motor’s efficiency. Thegraph of the power in a single phase system and three-phase system is shown infigure 1 and 2 respectively.      Figure1 Power in a single phase system       Figure2 Power in a three phase system  Asyou can see from figure 1, the power in a single phase system becomes 0 twotimes in each cycle while in three-phase system even though one of the line’spower becomes zero, the other two line’s power are not zero thus it can provideconstant power to the loads.Economical CostSincetransmission of power requires the use of wires, cost is a major component tobe considered. Out of the two systems, three-phase system is cheaper because ituses less amount of wire than single phase system for the same line voltage andpower delivered to the load. This can be proved by looking at the derivationbelow. (Assuming both of the wires are made from the same conductor and havethe same length.)                                                               (1)Eq.1 shows the power dissipated in a single phase system.                                             (2)Eq.2 shows the power dissipated in a three phase system.                                                                                                                                (3)Eq.3 shows the ratio between the power in a single phase and three-phase system.                                                                  (4)Eq.4 shows the equivalent equation of eq.3 after substituting the formula forresistance.                                                   (5)Eq.5 shows the ratio between the materials used in a single phase and three-phasesystem.By substituting the equation = from eq. 4 to eq.5 we getThis shows the single phase system uses33.333 percent more material compare to three-phase system.Industrial Uses            In the industry, mainly factories,uses large motors in order to speed things up and lessen manual labor. Thislarge motors need electricity to function but motors are designed in a way thatthey can either only be connected to a three-phase or a single phase.Therefore, there are two general types of motor, single phase motors andthree-phase motor. Three- phase motors are superior to single phase motors inmany ways. They are more efficient, more durable, cheaper , it gives higheroutput, weigh less and have self-starting capabilities. In short, three-phasemotors are better than single phase motors. Therefore, three-phase is thesystem that is more practical to be implemented in the industry.Complexity            Connection is also a thing to observe. In a single-phaseconnection, it only requires two wires to be used in order to supply power.With that said, it is obvious that the three-phase system uses three wires todo the same. The connections in three-phase systems are far more complicatedand complex. It requires a certain connection in order for it to work properly.The single-phase also requires a certain connection, but it being composed ofonly two wires makes it a less complex than a three-phase system.        Figure3 Source- Load combination in a single phase system         Figure4 Source- Load Combination in a three-phase system. Range of ApplicationInterms of range of application, single-phase system has a broader range ofapplication. It is because not all people consume large amount of power. Singlephase can provide enough and sufficient amount of power that is only needed forresidential uses. Also the everyday appliances that we use is specificallydesigned for single phase system. Also, as you can observe, the number ofresidential houses is very large compare to the number of factories, malls,etc. that need high amount of power. CONCLUSION            In this analytical report, the mainobjective is to show the different strengths and weaknesses of the two systems.Based on the findings, there is actually no system that is entirely better thanthe other one. Both systems have its own functions in the transmission anddistribution of power. It may be that one system is better in their featuresand components, but that doesn’t mean that the other one will be disregarded.It has been proven that the world need both of these systems to provide,produce, and supply power to the consumers in a way that everyone will besatisfied and no power is wasted.RECOMMENDATION            Since this report’s purpose toanalyse and compare the two systems and in the field these two systems arealready implemented, we cannot recommend anything at this point.  REFERENCES·        Single-Phase vs Three-Phase PowerExplained, August 30, 2017 by Tripp Litehttps://blog.tripplite.com/single-phase-vs-three-phase-power-explained/·        Why three phase better than singlephase, September 2, 2015 by DP Aurosish, O Engineer,KSKEnergy Ventures Ltd.https://www.quora.com/Why-is-three-phase-better-than-single-phase·        What’s the Difference Between SinglePhase and Three Phase AC Power Supplies?, CopyrightAEGIS Power Systems, Inc. 1995-2015.http://aegispower.com/index.php/2015-01-15-19-35-10/179-what-s-the-difference-between-single-phase-and-three-phase-ac-power-supplies·        FASCO Single-Phase Motor & FASCOThree-Phase Motor, Copyright 2018 Regal-BeloitCorporation. All rights reserved.https://industrialclearance.com.au/wp-content/uploads/TFCM-TFC-Y2HE-1-2-721×600.jpghttps://industrialclearance.com.au/wp-content/uploads/F-A-Y-6.jpg·        Three Phase SystemAdvantages over Single Phase Systemhttp://www.electricalbasicprojects.com/three-phase-system-advantages-over-single-phase-system/            APPENDICES”Power Distribution System”