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field rectifiers

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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
... rectifier and groundbed. Rectifiers are removed from their substation locations and are replaced by fewer, smaller rectifiers in the “field.” The current required by the pipe ( I R ) is impressed by the rectifier via anode-groundbeds. One rectifier as shown could theoretically protect the pipe...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005836
EISBN: 978-1-62708-167-2
... manufacturer, showing thermal cycling capability for standard (copper) and traction (AlSiC) high-power modules Abstract Abstract This article reviews the performance of power electronics components, namely, power rectifiers, insulated-gate bipolar transistors, metal-oxide semiconductor field-effect...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005838
EISBN: 978-1-62708-167-2
... Controllable ON Low/medium Medium-fast 10 kW–5 MW SCR, silicon-controlled rectifier; MOSFET, metal-oxide semiconductor field-effect transistor; IGBT; insulated-gate bipolar transistor Constant-voltage-type inverter output levels (full wave, fundamental component) typical of fixed-voltage inverter...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004114
EISBN: 978-1-62708-184-9
... electrode; dc, direct current; SCR, silicon-controlled rectifier Fig. 7 Linear plot showing where the curve leaves a linear relationship. Tafel point on E log I must be at a higher current than the point that deviated from a linear straight line in this figure. Data generated from Fig. 4...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001337
EISBN: 978-1-62708-173-3
... voltage is usually done on the input to the high-voltage transformer/rectifier oil-filled tank. The input control installations range from motor-driven variable autotransformers, motor-alternators with field controls, SCR switching or phase control, to power MOSFET (metal-oxide semiconductor field-effect...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005899
EISBN: 978-1-62708-167-2
... Electromagnetic Leakage Fields Apart from the induction furnace itself, a high-performance induction melting plant also has peripheral systems, such as water recooling, charging system, skimming equipment, and systems for process control. Recooling Devices Charging Devices Skimming Devices Process...
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
... Storage Tanks with an Improved Cathodic Protection System , Mater. Perform. , July 1999 , p 20 – 24 15. “Test Method for Field Measurement of Soil Resistivity Using the Wenner Four-Electrode Method,” G 57, Annual Book of ASTM Standards , Vol 3.02 , ASTM International 16. “Tank...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003232
EISBN: 978-1-62708-199-3
... provides a detailed account of the portable power sources available for magnetization, and the different ways of generating magnetic fields using yokes, coils, central conductors, prod contacts, direct-contact, and induced current. In addition, the article discusses the characteristics and classification...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003232
EISBN: 978-1-62708-199-3
... a detailed account of the portable power sources available for magnetization, and the different ways of generating magnetic fields using yokes, coils, central conductors, prod contacts, direct-contact, and induced current. In addition, the article discusses the characteristics and classification...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003608
EISBN: 978-1-62708-182-5
... in the field where it travels up the well casing to the flowline and then returns to the rectifier. Accelerated corrosion occurs on the well casings of the close wells where current is discharged from the casing to the formation. This corrosion is extremely difficult to detect and is very expensive to correct...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006468
EISBN: 978-1-62708-190-0
... the strength of magnetic fields; for example, a rectifier capable of continuously delivering 400 A current can put out much more than 400 A for short intervals. Therefore, it is possible, by suitable current-control and switching devices, to pass a very high current for a short period (less than a second...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001262
EISBN: 978-1-62708-170-2
... rectifier is greater than that of a conventional dc unit. Also, optimization of results requires planning and experimentation, and plating equipment may need to be redesigned or upgraded. The theory behind pulse plating is simple ( Ref 1 , 2 ). The cathode film is kept as rich in metal ions as possible...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005196
EISBN: 978-1-62708-187-0
... in the metal, this electrical energy is converted into heat, which melts the charge. Once the metal is in its molten state, the magnetic field produces a stirring motion. The power and frequency applied determine the stirring rate. This is controlled to ensure complete melting of the charge and adequate mixing...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001356
EISBN: 978-1-62708-173-3
.... , The Effects of Applied of Magnetic Fields on Welding Arcs , Weld. J. , Vol 45 ( No. 11 ), Nov 1966 , p 515-s to 524-s 10. Krysiak K.F. and Bhadha P.M. , Shielding Gas Purification Improves Weld Quality , Weld. J. , Nov 1990 , p 47 – 49 11. Giepl H. , Orbital TIG...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003697
EISBN: 978-1-62708-182-5
... and Similar Facilities,” Paper No. 01582, Corrosion 2001, NACE International , 2001 13. Pawson R. and McWilliams R. , “Bare Pipelines, the 100 mV Criterion & C.I.S. A Field Solution to Practical Problems,” Paper No. 01587, Corrosion 2001, NACE International , 2001 14...
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
... and water without involving the metal atoms. This magnetic field projects into outer space where it is affected by the “solar wind” consisting of solar plasma (high-energy protons, electrons, and other subatomic particles). The sun produces a stream of solar plasma of varying intensity with bursts...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005717
EISBN: 978-1-62708-171-9
... static magnetic fields. Direct-current (dc) power supplies and radio-frequency generators are sources of alternating magnetic fields. Some power-control schemes use high-frequency inverter-type power supplies, pulsed dc power, and modulated dc power. In conventional silicon-controlled rectifier-fired...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006448
EISBN: 978-1-62708-190-0
... to the square of the distance from the source. As long as personnel stay far enough away from the source while an exposure is being made, portable sources can be used with adequate safety. Finally, access to radiographic work areas, including field sites and radioactive-source storage areas, must at all...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004213
EISBN: 978-1-62708-184-9
... corrosion caused by foreign pipeline Fig. 5 Pipeline that experienced stray current corrosion caused by inverting the electrical leads to a cathodic protection rectifier Fig. 9 Life model for a colony of stress-corrosion cracks. Source: Ref 17 Fig. 11 Sacrificial anode CP...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001485
EISBN: 978-1-62708-173-3
... to the field connections to ensure that this minimum is maintained without severely restricting the air-flow volume. Table 1 gives the consumption rates of compressed air for manual and mechanized torches, as well as compressor power rating for intermittent and continuous use. The compressor receiver tank...