Locating Faults on Energized Airfield Lighting Power Cables
(2016) In CODEN:LUTEDX/TEIE EIE920 20161Industrial Electrical Engineering and Automation
- Abstract
- The purpose of this study is to investigate the feasibility of both online and offline fault location
and state of health technologies for airport series circuits used to provide power to light fixtures on
the runway. In current series circuits, only some ground faults can be detected and no automated
fault location or state of health features are available. Fault location is currently performed with an
isolation tester and a ”divide and conquer”-methodology which is very time consuming and personnel
intensive.
The foundation of this work is based on an extensive literature study, where fault location and
state of health methods used in the power distribution were identified. The method evaluation of
the thesis is based on a... (More) - The purpose of this study is to investigate the feasibility of both online and offline fault location
and state of health technologies for airport series circuits used to provide power to light fixtures on
the runway. In current series circuits, only some ground faults can be detected and no automated
fault location or state of health features are available. Fault location is currently performed with an
isolation tester and a ”divide and conquer”-methodology which is very time consuming and personnel
intensive.
The foundation of this work is based on an extensive literature study, where fault location and
state of health methods used in the power distribution were identified. The method evaluation of
the thesis is based on a concept generation methodology by Karl T. Ulrich and Steven D. Eppinger.
Technical evaluations were performed with primarily LTspice as a simulation tool, time domain re-
flectometry was also tested in the lab and on real series circuits at Arlanda airport.
The results reveal that adopting fault location technologies used in the power distribution industry
for series circuit fault location is very difficult, mainly due to the current transformers placed on the
series circuit and the high-resistance nature of the majority of ground faults. The transformers
pose as impedance discontinuities which contribute with significant high frequency attenuation and
dispersion, which obstructs the utilization of any high frequency transients for fault location purposes.
Ground faults with high resistances in the kΩ-range does not produce any high frequency transients
and does not cause significant steady state-deviations which is problematic for impedance based
fault location methods. Current state of health methods proved to be time consuming and personnel
intensive, but could potentially be beneficial for Safegate engineers who could benchmark existing
cable systems when commissioning new series circuits. Although, large scale tests are recommended
in order to validate these results. Further research into utilizing Airfield Smart power and each
individual fixture for fault location and state of health is also of interest for future work. (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/student-papers/record/8884904
- author
- Honkanen, Dennis LU and Anderjon, Simon
- supervisor
- organization
- course
- EIE920 20161
- year
- 2016
- type
- H3 - Professional qualifications (4 Years - )
- subject
- keywords
- Fault Location, State of Health, Airfield, Lighting, LED, Fault, Series Circuit
- publication/series
- CODEN:LUTEDX/TEIE
- report number
- 5376
- language
- English
- id
- 8884904
- date added to LUP
- 2016-06-27 13:39:57
- date last changed
- 2016-06-27 13:39:57
@misc{8884904,
abstract = {{The purpose of this study is to investigate the feasibility of both online and offline fault location
and state of health technologies for airport series circuits used to provide power to light fixtures on
the runway. In current series circuits, only some ground faults can be detected and no automated
fault location or state of health features are available. Fault location is currently performed with an
isolation tester and a ”divide and conquer”-methodology which is very time consuming and personnel
intensive.
The foundation of this work is based on an extensive literature study, where fault location and
state of health methods used in the power distribution were identified. The method evaluation of
the thesis is based on a concept generation methodology by Karl T. Ulrich and Steven D. Eppinger.
Technical evaluations were performed with primarily LTspice as a simulation tool, time domain re-
flectometry was also tested in the lab and on real series circuits at Arlanda airport.
The results reveal that adopting fault location technologies used in the power distribution industry
for series circuit fault location is very difficult, mainly due to the current transformers placed on the
series circuit and the high-resistance nature of the majority of ground faults. The transformers
pose as impedance discontinuities which contribute with significant high frequency attenuation and
dispersion, which obstructs the utilization of any high frequency transients for fault location purposes.
Ground faults with high resistances in the kΩ-range does not produce any high frequency transients
and does not cause significant steady state-deviations which is problematic for impedance based
fault location methods. Current state of health methods proved to be time consuming and personnel
intensive, but could potentially be beneficial for Safegate engineers who could benchmark existing
cable systems when commissioning new series circuits. Although, large scale tests are recommended
in order to validate these results. Further research into utilizing Airfield Smart power and each
individual fixture for fault location and state of health is also of interest for future work.}},
author = {{Honkanen, Dennis and Anderjon, Simon}},
language = {{eng}},
note = {{Student Paper}},
series = {{CODEN:LUTEDX/TEIE}},
title = {{Locating Faults on Energized Airfield Lighting Power Cables}},
year = {{2016}},
}