The study of distribution voltage drop and neutral-to-ground voltage of a healthcare facility / Nazihah Musa

The proliferation of modem medical devices has raised the issue of power quality related problems in healthcare industries. These devices represent non-linear loads which will inject harmonics into the system The concern lies on how fur the existing power system of a building can tolerate the increa...

Full description

Saved in:

Bibliographic Details
Main Author:	Musa, Nazihah
Format:	Thesis
Language:	English
Published:	2017
Subjects:	Apparatus and materials
Online Access:	https://ir.uitm.edu.my/id/eprint/103039/1/103039.pdf
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my-uitm-ir.103039
record_format	uketd_dc
spelling	my-uitm-ir.1030392024-11-20T02:01:28Z The study of distribution voltage drop and neutral-to-ground voltage of a healthcare facility / Nazihah Musa 2017 Musa, Nazihah Apparatus and materials The proliferation of modem medical devices has raised the issue of power quality related problems in healthcare industries. These devices represent non-linear loads which will inject harmonics into the system The concern lies on how fur the existing power system of a building can tolerate the increasing magnitude of current harmonic. This study presents prediction of how fur electrical system cable can operate before violating the permissible voltage drop and neutral-to-ground voltage during harmonic loading condition in the system It is based on case study at Clinical Training Centre (CTC) building, UiTM Sungai Buloh. The cost of equipment malfunction recorded (March 2013-April 2015) in this building shows a fatal loss of RM 298.389 and the list of equipment is included in this paper. Following the claim, Fluke 1750 power monitor device was logged at several affected feeders. The work is presented in this paper. The analysis of power log data found that there were several voltage dropout occurrences and current harmonic level was considerably high. Based on the facility 's single line diagram and measurement data, a selected feeder was simulated using MATLAB-Simul ink, where the original recorded ham10nic current percentage were increased percentage by percentages to predict the limit before violating the standard voltage drop and neutral-to ground (NGV) outlined by the utility provider. The results showed that the magnitude of harmonic current that can be borne by each A, B, and C phase cables and neutral cable are different. Phase cable C possesses the highest spare capacity. The finding of this study may help the facility in planning future load installation by phases such as prioritizing the installation of highly potential harmonic source load to phase C followed by B and A. It was also found that the neutral cable was fur underrated compared to the phase cables hence, in order to make the neutral cable to perform at equal level, neutral cable needs to be redesigned. 111is study also served as a preliminary study that is hoped to have influence to the facility in making decision before adopting mitigation equipment following the severity of equipment malfunction reported. Instead, the facility should inspect the grounding bonding of the facility in finding the source of the problem 2017 Thesis https://ir.uitm.edu.my/id/eprint/103039/ https://ir.uitm.edu.my/id/eprint/103039/1/103039.pdf text en public degree Universiti Teknologi MARA (UiTM) Faculty of Electrical Engineering Hashim, Hashimah
institution	Universiti Teknologi MARA
collection	UiTM Institutional Repository
language	English
advisor	Hashim, Hashimah
topic	Apparatus and materials
spellingShingle	Apparatus and materials Musa, Nazihah The study of distribution voltage drop and neutral-to-ground voltage of a healthcare facility / Nazihah Musa
description	The proliferation of modem medical devices has raised the issue of power quality related problems in healthcare industries. These devices represent non-linear loads which will inject harmonics into the system The concern lies on how fur the existing power system of a building can tolerate the increasing magnitude of current harmonic. This study presents prediction of how fur electrical system cable can operate before violating the permissible voltage drop and neutral-to-ground voltage during harmonic loading condition in the system It is based on case study at Clinical Training Centre (CTC) building, UiTM Sungai Buloh. The cost of equipment malfunction recorded (March 2013-April 2015) in this building shows a fatal loss of RM 298.389 and the list of equipment is included in this paper. Following the claim, Fluke 1750 power monitor device was logged at several affected feeders. The work is presented in this paper. The analysis of power log data found that there were several voltage dropout occurrences and current harmonic level was considerably high. Based on the facility 's single line diagram and measurement data, a selected feeder was simulated using MATLAB-Simul ink, where the original recorded ham10nic current percentage were increased percentage by percentages to predict the limit before violating the standard voltage drop and neutral-to ground (NGV) outlined by the utility provider. The results showed that the magnitude of harmonic current that can be borne by each A, B, and C phase cables and neutral cable are different. Phase cable C possesses the highest spare capacity. The finding of this study may help the facility in planning future load installation by phases such as prioritizing the installation of highly potential harmonic source load to phase C followed by B and A. It was also found that the neutral cable was fur underrated compared to the phase cables hence, in order to make the neutral cable to perform at equal level, neutral cable needs to be redesigned. 111is study also served as a preliminary study that is hoped to have influence to the facility in making decision before adopting mitigation equipment following the severity of equipment malfunction reported. Instead, the facility should inspect the grounding bonding of the facility in finding the source of the problem
format	Thesis
qualification_level	Bachelor degree
author	Musa, Nazihah
author_facet	Musa, Nazihah
author_sort	Musa, Nazihah
title	The study of distribution voltage drop and neutral-to-ground voltage of a healthcare facility / Nazihah Musa
title_short	The study of distribution voltage drop and neutral-to-ground voltage of a healthcare facility / Nazihah Musa
title_full	The study of distribution voltage drop and neutral-to-ground voltage of a healthcare facility / Nazihah Musa
title_fullStr	The study of distribution voltage drop and neutral-to-ground voltage of a healthcare facility / Nazihah Musa
title_full_unstemmed	The study of distribution voltage drop and neutral-to-ground voltage of a healthcare facility / Nazihah Musa
title_sort	study of distribution voltage drop and neutral-to-ground voltage of a healthcare facility / nazihah musa
granting_institution	Universiti Teknologi MARA (UiTM)
granting_department	Faculty of Electrical Engineering
publishDate	2017
url	https://ir.uitm.edu.my/id/eprint/103039/1/103039.pdf
_version_	1818588072577597440

The study of distribution voltage drop and neutral-to-ground voltage of a healthcare facility / Nazihah Musa

Similar Items