Improving the Power System safety in Hospitals by means of periodical SFRA tests on Medical Isolation Transformers

For a specific vessel, the safety of the isolated power system is analyzed. Concerning the safety, the choice of propulsion system and the classification regulations have a major role for the power system design. The rules of SOLAS (International Convention for the Safety of Life at Sea), the flag state, and the harbor authorities are pointing to the basic level of safety, while the classification societies are pointing to the basic navigational regulations. A case study of the main switchboard and emergency switchboard safety, while taking into account different short circuits for the specific operational configuration of the electrical network, makes a comparative study possible.

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Understanding the OSHA electrical standards and compliance guidelines [power system safety]

ESMO 98 - 1998 IEEE 8th International Conference on Transmission and Distribution Construction Operation and Live-Line Maintenance Proceedings ESMO 98 Proceedings ESMO 98 The Power is in Your Hands TDCLLM-98 ◽

10.1109/tdcllm.1998.668337 ◽

2002 ◽

Author(s):

J.F. Doering

Keyword(s):

Power System ◽

System Safety

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Impacts of Load Profiles on the Optimization of Power Management of a Green Building Employing Fuel Cells

Energies ◽

10.3390/en12010057 ◽

2018 ◽

Vol 12 (1) ◽

pp. 57 ◽

Cited By ~ 11

Author(s):

Fu-Cheng Wang ◽

Kuang-Ming Lin

Keyword(s):

Power System ◽

Power Management ◽

Performance Improvement ◽

Green Building ◽

Model Parameters ◽

Total System ◽

System Safety ◽

Hybrid Power System ◽

System Cost ◽

Hybrid Power

This paper discusses the performance improvement of a green building by optimization procedures and the influences of load characteristics on optimization. The green building is equipped with a self-sustained hybrid power system consisting of solar cells, wind turbines, batteries, proton exchange membrane fuel cell (PEMFC), electrolyzer, and power electronic devices. We develop a simulation model using the Matlab/SimPowerSystemTM and tune the model parameters based on experimental responses, so that we can predict and analyze system responses without conducting extensive experiments. Three performance indexes are then defined to optimize the design of the hybrid system for three typical load profiles: the household, the laboratory, and the office loads. The results indicate that the total system cost was reduced by 38.9%, 40% and 28.6% for the household, laboratory and office loads, respectively, while the system reliability was improved by 4.89%, 24.42% and 5.08%. That is, the component sizes and power management strategies could greatly improve system cost and reliability, while the performance improvement can be greatly influenced by the characteristics of the load profiles. A safety index is applied to evaluate the sustainability of the hybrid power system under extreme weather conditions. We further discuss two methods for improving the system safety: the use of sub-optimal settings or the additional chemical hydride. Adding 20 kg of NaBH4 can provide 63 kWh and increase system safety by 3.33, 2.10, and 2.90 days for the household, laboratory and office loads, respectively. In future, the proposed method can be applied to explore the potential benefits when constructing customized hybrid power systems.

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Power system safety management and audit protocols

2007 Australasian Universities Power Engineering Conference ◽

10.1109/aupec.2007.4548015 ◽

2007 ◽

Author(s):

Muhammad Arshad ◽

Syed M. Islam ◽

Abdul Khaliq

Keyword(s):

Power System ◽

Safety Management ◽

System Safety

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Study of Load Shedding by IEC61850 Implementation

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.336-338.1814 ◽

2013 ◽

Vol 336-338 ◽

pp. 1814-1817

Author(s):

Yi Kuan Ke ◽

Pei Hwa Huang

Keyword(s):

Smart Grid ◽

Power System ◽

Communication Networks ◽

Object Oriented ◽

Load Shedding ◽

System Safety ◽

Peer Communication ◽

Current Strategy ◽

Protective Relays ◽

Fast Transmission

The main purpose of this paper is to study the implementation of load shedding under the condition of IEC61850 (Communication Networks and Systems in Substations) communication exchange in the power system. The strategy of load shedding with IEC61850 GOOSE (Generic Object Oriented Substation Event) message relies on fast transmission of the signal to shed unstable regions for maintaining system safety. The current strategy for load shedding in the substation is to use hardwire and dispatch solutions to implement related applications of load shedding. For integrating protective relays in substations, IEC61850 GOOSE schemes can customize both a ring and a star construct based on TCP/IP Ethernet to have flexible dispatch of smart grid solutions. The functions of relay integrated with the GOOSE message play important roles to implement peer to peer communication to accomplish the load shedding strategy.

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