scholarly journals Proposed Office Facilities Layout in Low Voltage Electric Panel Manufacturer

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Julliete Angel Luin ◽  
Josephine Angel Luin
Keyword(s):  
Labor Productivity ◽  
Low Voltage ◽  
Initial Conditions ◽  
Facility Layout ◽  
Electrical Equipment ◽  
Employee Productivity ◽  
Work Efficiency ◽  
Facilities Layout ◽  
Total Distance ◽  
Workforce Productivity

<p>The electrical equipment industry in Indonesia is one of the factors that triggers economic growth. Labor productivity determines the success of project implementation. The non-optimal facility layout is one of the factors that triggers low labor productivity. The non-optimal facility layout affects the flow of information in the company. This study examines the problem of non-optimal office facility layout with TSP, ARC and ARD methods at PT. Duta Wijaya Elektrindo Engineering (PT. DWP). The method stated above can minimize the total distance traveled between office facilities so that work efficiency and workforce productivity may increase. The results of data processing indicate that the recommended office facility layout recommendations that are in accordance with the level of closeness between departments based on PST, ARC and ARD is the first recommendation. With reduced total distance traveled in the first layout of the proposed office facilities, the level of employee productivity and work efficiency will increase. The smallest total distance traveled on the proposed layout of the office facilities is 244.22 meters with a reduction of 36% from the initial conditions.</p>

scholarly journals Mechanical Properties of Graphene Oxide–Copper Composites

2016 ◽  
Vol 61 (2) ◽  
pp. 863-868 ◽  
Author(s):  
P. Duda ◽  
R. Muzyka ◽  
Z. Robak ◽  
S. Kaptacz
Keyword(s):  
Graphene Oxide ◽  
Tribological Properties ◽  
Low Voltage ◽  
Electrical Equipment ◽  
Oxide Content ◽  
Large Current ◽  
Current Densities ◽  
Materials Used ◽  
System Disk ◽  
Positive Effect

Abstract Due to their characteristics, sintered Cu-C composites are materials used in electrical equipment. These characteristics include high electrical conductivity, thermal conductivity and excellent resistance to abrasion. Currently, graphite nanopowder is used successfully as a carbon material. Metal-graphite, which is created on its basis, exists in different proportions of graphite to metal. A larger graphite content has a positive effect on smaller wear of commutators and rings. In contrast, a material with a higher copper content is used at high current densities. An example of such machines is a DC motor starter characterized by low voltage and large current. Tribological properties of Cu-C composites depend on the form of carbon they include. Owing to the capability to manufacture graphene, it has become possible to produce composites with its content. The present study tested the effect of a graphene oxide content on tribological properties in contact with steel. Tests were conducted on a ball-on-disk apparatus in conditions of dry friction. Microscopic observation was performed on the Hitachi SU70 field emission electron microscope. EDS analyses were performed using the Thermo Scientific X-ray Microanalysis system. Disk wear and surface geometrical structure parameters (SGP) of the samples after tribological tests were determined on the basis of measurements made on the Talysurf 3D contact profilometer from Taylor Hobson.

scholarly journals Layout Improvement Towards Lean System in Manufacturing Company

2019 ◽  
Vol 8 (12S2) ◽  
pp. 126-131
Keyword(s):  
Data Collection ◽  
Facility Layout ◽  
High Rate ◽  
Process Flow ◽  
Work System ◽  
Total Distance ◽  
Manufacturing Company ◽  
Measuring Tape ◽  
Measuring Tool

Facility layout arrangement is one of the factors that can give a significant impact on the company’s performance. Poor implementation of facilities arrangement can lead to ineffective and inefficient work system which may limit the rate of productivity, poor utilization of resources, high rate of rejection and many more. Thus, this study was conducted in order to solve the problem by proposing several solutions to the company for layout problems. Data collection were done by using several methods such as observation, interviews and measurement. A measuring tool been used in this study by using measuring tape to measure the distance of process flow, size of machines and space between machine to machines. The performance of each alternatives were calculated by comparing the total distance of process flow between actual layout and alternatives layout which were being measured by using measuring tape as a measuring tool for this study. From the evaluation, 1 layout was selected as it provide the highest percent of improvements. Proposed layout is not only has reducing the congestion level of the company but also increase its performance.

Facility Layout Planning

2013 ◽  
pp. 212-223
Author(s):  
Hossein Hojabri ◽  
Elnaz Miandoabchi
Keyword(s):  
Mathematical Models ◽  
Planar Graph ◽  
Facility Layout ◽  
Layout Design ◽  
Simple Graph ◽  
Layout Planning ◽  
Adjacency Graph ◽  
Manufacturing Plants ◽  
Maximal Planar Graph ◽  
Facilities Layout

The weighted maximal planar graph (WMPG) appears in many applications. It is currently used to design facilities layout in manufacturing plants. Given an edge-weighted complete simple graph G, the WMPG involves finding a sub-graph of G that is planar in the sense that it could be embedded on the plane such that none of its edges intersect, and is maximal in the sense that no more edges can be added to it unless its planarity is violated. Finally, it is optimal in the sense that the resulting maximal planar graph holds the maximum sum of edge weights. In this chapter, the aim is to explain the application of planarity in facility layout design. The mathematical models and the algorithms developed for the problem so far are explained. In the meanwhile, the corollaries and theorems needed to explain the algorithms and models are briefly given. In the last part, an explanation on how to draw block layout from the adjacency graph is given.

scholarly journals Thyristor Arc Eliminator for Protection of Low Voltage Electrical Equipment

Energies ◽  
2019 ◽  
Vol 12 (14) ◽  
pp. 2749 ◽  
Author(s):  
Karol Nowak ◽  
Jerzy Janiszewski ◽  
Grzegorz Dombek
Keyword(s):  
Lower Cost ◽  
Low Voltage ◽  
Short Circuit ◽  
Electrical Equipment ◽  
Power Network ◽  
System Operation ◽  
Test Circuit ◽  
Wide Range ◽  
Short Circuit Currents ◽  
Electrical Apparatus

The paper presents the layout of two opposing thyristors working as an Arc Eliminator (AE). The presented solution makes it possible to protect an electrical apparatus against the effects of an arcing fault. An Arc Eliminator is assumed to be a device cooperating with the protected apparatus. Thyristors were used because of their speed of operation and a relatively lower cost compared to other semiconductors with the same current-carrying capacity. The proposed solution, as one of the few currently available, makes it possible to eliminate the fault arc—both at short-circuit currents and current values to which overcurrent protections do not react. A test circuit was designed and made to study the effectiveness of the thyristor arc eliminator. A series of tests was carried out with variable impedance in the arc branch, including the influence of circuit inductance on arc time. It was found that the thyristor arc eliminator effectively protects devices powered from a low voltage power network against the effects of a fault or arc fault. The correctness of system operation for a wide range of impedance changes in the circuit feeding the arc location was demonstrated.

scholarly journals Organizational Configurations for Sustainability and Employee Productivity: A Qualitative Comparative Analysis Approach

2017 ◽  
Vol 57 (1) ◽  
pp. 216-251 ◽  
Author(s):  
Magali A. Delmas ◽  
Sanja Pekovic
Keyword(s):  
Comparative Analysis ◽  
Labor Productivity ◽  
Management Practices ◽  
Employee Performance ◽  
Qualitative Comparative Analysis ◽  
Employee Productivity ◽  
Work Systems ◽  
Quality Management Systems ◽  
Environmental Practices ◽  
Organizational Configurations

We propose a model that identifies the configurations of relations between environmental practices and other management practices that can improve employee performance, measured as labor productivity. To test our model, we use the qualitative comparative analysis (QCA) methodology, which allows us to demonstrate empirically how different configurations of management practices, including environmental practices, quality management systems, teamwork, and interorganizational relations, contribute to work systems in ways that increase labor productivity. Our results, based on data from 4,975 employees from 1,866 firms, show that environmental practices are associated with higher labor productivity only when they are combined with other management practices.

scholarly journals PENGARUH PENGAWASAN TERHADAP PRODUKTIVITAS KERJA KARYAWAN BAGIAN PRODUKSI PT SUNSON TEXTILE MANUFACTURER

2018 ◽  
Vol 2 (1) ◽  
pp. 26-34
Author(s):  
AI NUNUNG
Keyword(s):  
Statistical Analysis ◽  
Correlation Analysis ◽  
Hypothesis Testing ◽  
Labor Productivity ◽  
T Test ◽  
Employee Productivity ◽  
Result Show ◽  
Test Of Hypothesis ◽  
Independent Variable ◽  
Simple Regression

This research is knowing effect on employee productivity monitoring the production of PT Sunson Textile Manufacturer, Supervision as an independent variable  (x) and labor productivity as the dependent variable (y), and this study takes the number of respondents  as many as 48 people. Data obtained through the questionnaire and then further processed to be tested  through statistical  analysis such as a simple regression nalysis,  t-test and correlation analysis and determination with the help of using SPSP version 17. Result show than the results  of  t-test of hypothesis testing.  (5,757 ) (2,013 ). This ni indicates that moitoring signifikan effect on the level of employee productivity. The amount of supervision on employee productivity in the production of PT Sunson textile manufacturer PT sunson Textile manufacturer Thorn is at 41,9 %.

scholarly journals Manufacture of High Current Low Voltage Power Supply with Using the Mot (Microwave Oven Transformer)

2020 ◽  
pp. 301-306
Author(s):  
Arman Hidayat Sirait ◽  
Kerista Tarigan ◽  
Marhaposan Situmorang
Keyword(s):  
Power Supply ◽  
Low Voltage ◽  
Electrical Equipment ◽  
Microwave Oven ◽  
High Current ◽  
New Methods ◽  
Iron Smelting ◽  
Parallel Circuit ◽  
Secondary Winding

The manufacture of low voltage high current power supply using the MOT (Microwave Oven transformer) has been done. The purpose of this work is to convert low voltages into high currents by utilizing simple electrical equipment. This work use of varying voltages and different windings which are changed on the secondary winding section with a cable size of 240 mm 2, NYA cable type. The test is carried out with a series circuit, parallel circuit, and single circuit by utilizing a voltage of 30 V, 60 V, 90 V, 120 V and 5 different variations of winding. The results of this test provide knowledge of new methods that can be applied to iron smelting.

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