Instalasi 3 phase Kelompok 1 B.Inggris.pptx

PPT TUGAS ITL KELAS XII

1. 3 Phase Electrical Power Installation Group 1

2. 3 Phase Electrical Power Installation 01 3-Phase Electrical Power Installation Procedure 02 3 Phase Electrical Power Installation Planning 03 Material

3. 3 Phase Electrical Power Installation 01

4. A. Definition of 3-Phase Electricity What is meant by 3-phase electricity is Alternating Current or AC electricity that uses three conductors and has the same voltage, but has a difference in phase angle of 120 ° There are two types of relationships in the three-conductor connection, namely Y-star relationship and delta relationship . In general, there are two types of electrical voltage in 3-phase electricity, namely VPP or Voltage Phase to Phase (voltage between phases) and VPN or Voltage Phase to Neutral (phase voltage to neutral).

5. B. Advantages of 3-Phase Electricity 1. Lower current flow with the same power. This is because 3-phase electricity uses a higher voltage, so it can use a smaller cable size for more power. 2. 3-phase electricity can provide large electrical power such as for medium and large industries 3. 3-phase electricity does not require capacitors for induction motors

6. The picture is a 3-phase voltage phasor diagram. If the phasor has rotated at a certain speed and counterclockwise, it has a positive maximum value. In this 3-phase system there are several types of relationships, including : - Star Relationship (Y, wye ) - Triangle relationship (delta, Δ, D) C. Connections in a 3-Phase System

7. There are two kinds of power in a 3-phase system, which are as follows. 3-Phase System Power at Balanced Load D. Power in a 3-Phase System 3-Phase System Power at Unbalanced Load In a 3-phase system with balanced load, the load on each phase is identical and the currents and voltages in each phase are equal and 120 degrees apart from each other. This simplifies the power calculation. In a 3-phase system with unbalanced load, the load on each phase is not identical, which causes the current and voltage in each phase to be different and the power calculation becomes more complex. In this condition, the power calculation for each phase must be done separately.

8. 3-PHASE ELECTRICAL POWER INSTALLATION PROCEDURES 02

9. 02. 3-PHASE ELECTRICAL POWER INSTALLATION PROCEDURES A. Making Plan Drawings Limits and Types of Drawings - Situation Drawing - Installation Drawing - Single Line Installation Diagram - Drawing Details Description B . Supervision and Responsibility Supervision and responsibility in relation to installation planning, installation implementation are regulated in market 910 as follows - Must be licensed by the local PLN branch. - The person in charge must be an expert and have an authorized license. - ETC

10. 3-PHASE ELECTRICAL POWER INSTALLATION PLANNING 03

11. 03. 3-PHASE ELECTRICAL POWER INSTALLATION PLANNING A B C D E F G H A. Installation Planning B. Building Plan Drawing C. Electrical Installation Drawing D. Power Recapitulation Table E. Installation Materials Table F. Cost Budget Plan G . Worker Wage Cost H. Overall Cost of Building Installation

12. A. Installation Planning Installation planning must be done carefully. In general, requires planning that includes the following . a . Situation Picture of the Building to be Installed Electrical Installation b. Layout Design Drawing c. Electrical Equipment Connection Design d. Single Line Diagram e. Power Recapitulation Table f. Wiring Diagram g. Installation Materials Table

13. B. Building Plan Drawing Making a building plan drawing aims to find out the parts of the room in the building, so that it can easily design a layout for the building's electrical installation and lighting installation.

14. C. Electrical installation drawings By making a drawing, we can find out the location of electrical equipment points, such as contacts and lights in the building according to the division of the group.

15. In compiling this power recapitulation, as a first step, namely by determining the type and size of the safety in the connecting equipment for (PHB). Therefore, the type and size of the PHB is determined. D. Power Recapitulation Table

16. E. Installation Materials Table This Is a Map The installation material table serves to determine the material requirements used for electrical installation based on the drawing.

17. F. Cost Budget Plan This cost budget plan is made to determine the amount of costs incurred to install electrical installations

18. After the cost budget plan, the next step is to determine the wages of workers for electrical installation. In general, the cost of workers' wages is calculated at 30% of the material costs that have been made. G . Worker Wage Cost

19. Cost Component Total Material Cost ? Labor Costs ? Estimated equipment cost ? Total ? Unexpected costs (estimated at 10%) ? Total Cost ? H. Overall Cost of Building Installation At this stage, the overall cost of the building installation is calculated. The preparation of this overall cost is carried out after we calculate the cost budget plan and the cost of wages for workers to install electrical installations.

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