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fault isolation

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Published: 01 January 2006
Fig. 4 Isolator surge protector components. The various components work together to keep the pipe-type cable effectively grounded during ac faults. More
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004118
EISBN: 978-1-62708-184-9
... the substation combine underground into a single pipe containing the three conductors. Fig. 4 Isolator surge protector components. The various components work together to keep the pipe-type cable effectively grounded during ac faults. During normal operations, the capacitor blocks up to 12 V dc...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003503
EISBN: 978-1-62708-180-1
... and Quality Assurance The FMEA provides test engineers with information on anticipated failure modes and causes, against which to match fault detection and isolation capabilities. These are used to ensure that all failures can be detected, that appropriate tests are developed, and that built-in tests can...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004115
EISBN: 978-1-62708-184-9
... with ground faults Natural (telluric) current ( Ref 5 , 11 ) High voltage ac (HVAC) power lines ( Ref 12 , 13 , 14 ) The first two sources are steady state interference sources. The remaining sources are more of a dynamic interference as they change in magnitude and often in direction. The CP...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002436
EISBN: 978-1-62708-194-8
... and technical methods of risk/hazard analysis practiced in the industry to identify possible hazards and the resources necessary to avoid or reduce risks. These methods include the failure mode and effect analysis, fault tree analysis, event tree analysis, risk/benefit analysis, safety analysis...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006400
EISBN: 978-1-62708-192-4
... and isolate different fault types (e.g., failure mode, effects, and criticality analysis). In the next layer, the degradation level is identified to provide an input to the prognostics block and to predict the remaining useful life of the asset. The top two layers are responsible for the intelligent decisions...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005852
EISBN: 978-1-62708-167-2
... wiring from higher-signal levels, and isolation of servo controls from all other signals. The control designer must also consider the manufacturing procedures and environment that will exist in the final equipment installation. If the machine is to be installed in a job shop environment where only...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004110
EISBN: 978-1-62708-184-9
... steps are: Preassessment: Collects historic and current data to determine if ECDA is feasible, defines ECDA regions, and selects indirect inspection tools. Indirect examinations: Conducts above ground inspection(s) to identify and define coating faults, anomalies, and corrosion activity...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005669
EISBN: 978-1-62708-198-6
..., diffusionless (martensitic) phase transformation as occurs with face-centered cubic to hexagonal close-packed transformation in cobalt-chromium alloys, and stacking faults and twins and their role in this transformation. It also discusses the strengthening mechanisms that are responsible for the mechanical...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005909
EISBN: 978-1-62708-167-2
... and in most cases impossible to see metal saturation or metal fins penetrating toward the coil. Such hidden kinds of wear are the sources of unforeseen damage and furnace explosions ( Fig. 3 ). Fig. 3 Danger in case of turn-to-turn faults as a result of metal fins If molten metal contacts...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006311
EISBN: 978-1-62708-179-5
...-coupled growth is much faster than isolated dendritic growth. Accordingly, even in off-eutectic compositions, the eutectic may outgrow the individual dendrites, resulting in a purely eutectic microstructure. On the other hand, at high growth velocities, dendrites can be found in alloys of eutectic...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005843
EISBN: 978-1-62708-167-2
... supply may use reactors in the direct current (dc) input to the power supply and/or in the output portion of the circuit for load matching purposes. Isolation and/or autotransformers typically are used at the output of the power supply to match the voltage of the heat station components (capacitors...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003784
EISBN: 978-1-62708-177-1
... in the subboundaries often approximately equals the number of isolated dislocations in the subgrains. Fig. 3 Individual dislocations (revealed by careful etching) that comprise a subboundary in germanium. HNO 3 -acetic-HF-bromine. 1500×. Courtesy of W.G. Pfann Fig. 4 Dislocations and subboundaries...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004100
EISBN: 978-1-62708-184-9
... constructed pipelines, locating areas of stray-current pickup and discharge, identifying possible shorted casings and defective electrical isolation devices, locating possible high-pH stress-corrosion cracking risk areas, and locating areas at risk of external corrosion. Storage tanks are designed...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003721
EISBN: 978-1-62708-177-1
... and crystal imperfections (such as dislocations, dislocation dipoles, dislocation networks, dislocation loops, and stacking faults) Substructure: subgrains, other cellular structures Microstructure: grains of single-phase metals and alloys, shapes and sizes of microconstituents...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004113
EISBN: 978-1-62708-184-9
... to existing corrosion conditions should be obtained in sufficient quality to permit reasonable engineering judgments. Statistical procedures should be used in the analysis, if appropriate. Electrical Isolation Electrical isolation of structures must be compatible with electrical grounding...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003724
EISBN: 978-1-62708-177-1
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004112
EISBN: 978-1-62708-184-9
... Locating areas of stray-current pickup and discharge Identifying possible shorted casings Locating defective electrical isolation devices Detecting unintentional contact with other metallic structures Testing current demand and current distribution along a pipeline Locating possible high-pH...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005413
EISBN: 978-1-62708-196-2
... crystal, oriented for single slip and deformed in tension at room temperature. The stages I, II, and III can be clearly distinguished, since silver exhibits a distinct stage II, due to its low stacking fault energy ( Ref 6 ). The corresponding curve of a fine-grained polycrystal ( Ref 7 ) exhibits stage...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002355
EISBN: 978-1-62708-193-1
...-fault energy. Segall et al. ( Ref 14 ) in 1961 came to the same conclusion for copper, aluminum, nickel, and gold, which have high stacking-fault energies. A few years later, considerable differences between near-surface and interior structures were unequivocally proved for low-carbon steel ( Ref 15...