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Alternating current motors

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Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2017
Paper Number: OTC-27929-MS
... of the typical alternatives are based on the reduction of transmission current. A low risk opportunity to achieve a lower amperage system consists in using a higher voltage subsea motor. The development of such a motor would require low qualification efforts and yield substantial cost reduction results...
Proceedings Papers

Paper presented at the Carbon Management Technology Conference, February 7–9, 2012
Paper Number: CMTC-151387-MS
..., with rated voltage applied at rated frequency. Figure 1: Equivalent electric circuit model of the squirrel cage induction motor. Locked rotor current: the steady-state current taken from the line, with the rotor locked and with rated voltage (and rated frequency in the case of alternating-current motors...
Proceedings Papers

Publisher: Offshore Technology Conference
Paper presented at the Offshore Technology Conference, May 2–5, 2022
Paper Number: OTC-31929-MS
.... – Operational speed range. Due to those differences in motor design concept, each motor also presented slightly different performance features. One that impacts mostly the SEPS studies herein presented is the motor operational current that ranges from around 600 to 800 A depending on the motor concept...
Proceedings Papers

Paper presented at the Offshore Technology Conference Asia, November 2–6, 2020
Paper Number: OTC-30452-MS
.... Traditionally, gas turbines have been chosen as the driver for gas compressors. However, with the advancement in technology, electric motors are now being utilized as an alternate solution to drive these gas compressors. The advancement in offshore power generation and power from shore technologies has shown...
Proceedings Papers

Paper presented at the 2nd World Petroleum Congress, June 14–19, 1937
Paper Number: WPC-2019
..., for oil field service. The power characte- * ristics can hardly be improved upon except possibly by those of a iull cut-oif multi-cylinder steam engine. Alternaling Current Motors. Though the work being done is entirely dissimilar, the most useful extreme power characteristics for both hoisting...
Proceedings Papers

Paper presented at the SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, October 29–31, 2019
Paper Number: SPE-196481-MS
... for efficient drilling and reduction of NPT over multiple wells, assisting operators in the current cost-sensitive industry environment. bit design cutter Upstream Oil & Gas drilling performance Drill Bit Technology ROP bit selection motor bha application PDC vibration dual chamfer cutter...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 1998
Paper Number: OTC-8884-MS
... of the mechanical vibration signature and the motor driving current. There are major cost advantages in control for optimising performance, increasing life expectancy, and diagnostics for scheduled maintenance in place of catastrophic failure and replacement philosophy. The sensor system is likely...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil & Gas Conference and Exhibition, September 11–13, 2006
Paper Number: SPE-101096-MS
... efficiency electric submergible pump beam pumping discharge capacity Yuan control system alternative current linear motor consumption investment resistance numerical control magnetic field lifting technology Copyright 2006, Society of Petroleum Engineers This paper was prepared...
Proceedings Papers

Paper presented at the Offshore Mediterranean Conference and Exhibition, March 29–31, 2017
Paper Number: OMC-2017-597
... the whole installation is down ! When using Auxialiary Windings or PMG excitation system, the alternator is capable to provide the short circuit current (due to the faulty motor!) and to maintain it then the protection relay should be able to detect the default short circuit and to disconnect the equipment...
Proceedings Papers

Paper presented at the North Africa Technical Conference and Exhibition, April 15–17, 2013
Paper Number: SPE-164666-MS
.... Nomenclatures Abbreviation Expansion AM Asynchronous Motor AC Alternating Current API American Petroleum Institute degree = [141.5 / sp.gr. (60 °F / 60 °F)] – 131.5 bbl/d Barrels Per Day BHT Bottom Hole Temperature BHP Brake Horse Power BFPD Barrel Fluid Per Day...
Journal Articles
J Pet Technol 61 (07): 56–57.
Paper Number: SPE-0709-0056-JPT
Published: 01 July 2009
... in an expanded range and, thereby, to react to changes in well flow rate and dynamic level as promptly as possible without stopping production and performing tripping operations. In such situations, wells equipped with conventional alternating-current (AC) motors require choking or change of pump running depth...
Proceedings Papers

Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Gulf Coast Section Electric Submersible Pumps Symposium, October 4–8, 2021
Paper Number: SPE-204514-MS
... charge in a circuit, remarkably similar to the flow rate of a fluid. Electrical energy is expressed in two forms, alternating current (AC) and direct current (DC). AC is developed by repeatedly alternating the polarity of voltage, and the flow of electrical current switches directions in kind. DC...
Proceedings Papers

Paper presented at the SPE Electric Submersible Pump Symposium, April 24–28, 2017
Paper Number: SPE-185129-MS
...% of the manufacturers listing, most were ≤ 1%. With nameplate credibility established, the various motors could be compared on a dimensionless basis. Table 2 Tested Motor Nameplate Information Motors & Type Motor Length [ft.] Motor Weight [Ib] Rated Current [A RMS] Rated Speed [RPM] Rated...
Proceedings Papers

Paper presented at the CORROSION 2017, March 26–30, 2017
Paper Number: NACE-2017-9308
...: efficient cooling of the motor, and 100% natural lubrication in the contact areas between the rotor and stator. This eliminates the need for lubrications and cooling oils in the immersed PMM, making them an environmentally friendly alternative for maritime motors. They also have an improved efficiency...
Proceedings Papers

Paper presented at the SPE Symposium: Production Enhancement and Cost Optimisation, November 7–8, 2017
Paper Number: SPE-189211-MS
... and helps expand the operating envelope of the system. To operate properly, permanent magnet motor requires commutation electronics to properly time the switching of the output transistors and control the current in the motor windings. The incremental cost of providing adjustable driving voltage via pulse...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2016
Paper Number: OTC-26980-MS
... dielectrics for higher alternating electrical stress means there are now solutions for these technologically complex and incompatible demands. However, both direct current (DC) and alternating current (AC) systems have benefits and limitations when used for offshore power systems. DC systems offer a proven...
Proceedings Papers

Paper presented at the Abu Dhabi International Petroleum Exhibition & Conference, November 13–16, 2017
Paper Number: SPE-188353-MS
... no.1, as the previously used MLE rated current on the edge of the motor rated current which caused the motor to fail from the high current during operation and startup. As well, a field trial has been conducted with 738 series motors plug in type (3350V, 136A, 750Hp) to check its performance...
Proceedings Papers

Paper presented at the SPE Annual Caspian Technical Conference & Exhibition, November 4–6, 2015
Paper Number: SPE-177361-MS
... start the motor of a 400[HP] Electrical Submersible Pump (ESP). While larger motors can be operated using this system, getting them started is difficult due to a high inrush current. On the other hand, an equivalent Gen-Set/VSD system can start and run a 760[HP] ESP; however, the VSD is not a preferred...
Proceedings Papers

Paper presented at the IADC/SPE Drilling Conference, February 21–23, 2006
Paper Number: SPE-99078-MS
... Permanent Magnet DC Direct Current AC Alternating Current VSFD Variable Speed Frequency Drive PLC Programmable Logical Controller UPS Uninterrupted Power Supply DnV Det Norske Vertias MRU Motion Reference Unit EN European Norm NOV National Oilwell Varco Definitions (as used in this paper) AC-motor...
Proceedings Papers

Paper presented at the SPE Russian Oil and Gas Technical Conference and Exhibition, October 3–6, 2006
Paper Number: SPE-101884-MS
... a PM-motor application is related to reduced size and optimized shape of equipment, as well as an enhanced safety aspect in lifting operations. Abbreviations HSE Health, Safety and Environment HPU Hydraulic Power Unit PM Permanent Magnet AC Alternating Current DC Direct Current SCR Semiconductor...

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