منابع مشابه
SIL Rating Fire Protection Equipment
SIL's (Safety Integrity Levels) are used by IEC 61508:1998 [1] to characterise the required functional safety of computer control systems. For example, SIL 4, the highest rating is for fly by wire aircraft and weapons systems and track circuited train signalling systems while SIL 2 is typical of certain Programmable Logic Controllers (PLC). Fire control panels have not been SIL rated to date ev...
متن کاملSurge Protection of End-User Equipment
This document is included in the Annex of Part 7 as historical background of a well-intentioned task that was completed at too slow a pace, missing its target date for serving as a reference for other in-process IEC standards projects concerned with low-voltage surge-protective devices. For the sake of historical accuracy and perspective, the document is presented here in its draft form, includ...
متن کاملThree-Phase Modeling of Dynamic Kill in Gas-Condensate Well Using Advection Upstream Splitting Method Hybrid Scheme
Understanding and modeling of three-phase transient flow in gas-condensate wells play a vital role in designing and optimizing dynamic kill procedure of each well that needs to capture the discontinuities in density, geometry, and velocity of phases but also the effect of temperature on such parameters. In this study, two-phase Advection-Upstream-Splitting-Method (AUSMV) hybrid scheme is extend...
متن کاملMemory Protection Scheme: Nooks Architecture vs. Mondrian Protection Scheme
1.0 Abstract In recent times, there is a big explosion of embedded devices like PDAs and digital cameras in the consumer market arena. In order to incorporate these new devices into the computer systems a large number of device drivers have been written by different vendors. One way to define device drivers is to view them as an extension to the operating system kernel. Today the preferred way ...
متن کاملDifferential Protection for Arbitrary Three-Phase Power Transformers
This thesis describes how to provide standardized, current based, differential protection for any three-phase power transformer, including phase-shifting transformers with variable phase angle shift and transformers of all construction types and internal on-load tap-changer configurations. The use of standard transformer differential protection for such applications is considered impossible in ...
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ژورنال
عنوان ژورنال: IARJSET
سال: 2017
ISSN: 2393-8021
DOI: 10.17148/iarjset.2017.4217