Provenance: Gift of Albert Brecken.; The Burndy Library Collection at the Huntington Library. Book.
1909 - Gale Group | NCCO-STM 1of2
... paper presents a brief discussion of the current transformer as used with measuring and controlling apparatus with ... and phase angle. A new type of current transformer is then described, in which it is possible ... given amount of iron and copper in the transformer. In this new device the transformation is effected ... which would be furnished by an ideal current transformer having no errors. The two currents may easily ... The mathematical theory of the two-stage current transformer is developed and applied. Experimental curves are given ...
Tópico(s): Magnetic Field Sensors Techniques
1922 - Institute of Electrical and Electronics Engineers | Transactions of the American Institute of Electrical Engineers
Publisher's Advertisements on Last [16] p. Provenance: J. M. Sutherland Autograph on Half Title Page and Stamps on Title Page and Half-Title Page.; Publisher' ...
1893 - Gale Group | NCCO-STM 1of2
In the communication art transformers are used to transfer inductively the energy of speech currents from one electric circuit to another. In addition to this ... presented of the frequency range over which telephone transformers must operate efficiently in transferring energy between two ... transmitted is measured by comparison with an ideal transformer which is one which introduces no losses and ... the two circuits. In studying its action the transformer is replaced by its equivalent T network which ... of analyzing its losses. The variation of the transformer losses with frequency is discussed for the three ...
Tópico(s): Wireless Power Transfer Systems
1924 - Institute of Electrical and Electronics Engineers | Journal of the A I E E
Publication Date from Preface; Includes Index The Burndy Library Collection at the Huntington Library. Book.
1893 - Gale Group | NCCO SciTechMed 2 of 2
Study of transformers has been under way for some time to coordinate the strength of transformers and transmission line insulation under lightning conditions. This ... spark-gap tests of transient voltage distribution in transformer windings have been previously published by the Institute. ... made by the cathode ray oscillograph on power transformers connected to a short transmission line and subjected ... effects of the transmission line, concentrated inductance, and transformer entrance bushings on traveling waves were studied, as ...
Tópico(s): High voltage insulation and dielectric phenomena
1929 - Institute of Electrical and Electronics Engineers | Transactions of the American Institute of Electrical Engineers
Includes Index The Burndy Library Collection at the Huntington Library. Book.
1898 - Gale Group | NCCO-STM 1of2
The requirements and limitations of surge generators for transformer testing can be summed up as follows: The ... the surge generator when the capacity of the transformer is great. If a wave is desired without ... of the generator and the capacity of the transformer. This is a matter inherent to all surge ... very steep front cannot be obtained with large transformers. Further, the inserted resistance also limits the voltage ... of this resistance to the load resistance. For transformers of low inductance, the length of the wave ...
Tópico(s): Non-Destructive Testing Techniques
1932 - Institute of Electrical and Electronics Engineers | Transactions of the American Institute of Electrical Engineers
Provenance: Armorial Bookplate of Sir David Salomons Bart., Broomhill, Tunbridge Wells.; The Burndy Library Collection at the Huntington Library. Book.
1887 - Gale Group | NCCO-STM 1of2
Power transformers have reached such a degree of perfection that it seems unlikely that there is room for substantial ... any fundamental characteristic. However, the insulation of conventional transformers is in the main dependent upon a liquid ... States.After reviewing the advantages of gas-insulated transformers, the paper examines the fundamental characteristics of this ... units have lower impulse strength than oil-filled transformers. This deficiency, however, can be overcome with liberal margins of safety if gas-insulated transformers are protected with modern lightning arresters.The cooling ...
Tópico(s): Lightning and Electromagnetic Phenomena
1960 - | Proceedings of the IEE Part A Power Engineering
Provenance: Richard F. And Mary L. Fagan Collection.; The Burndy Library Collection at the Huntington Library. Book.
1916 - Gale Group | NCCO SciTechMed 2 of 2
Potential transformers that have their primary windings connected in Y and grounded, on an otherwise ungrounded circuit, may oscillate ... the applied voltage to that at which the transformer saturates. One method to increase the energy losses and thus protect the transformer and circuit against the results of sustained oscillations ... to load resistively the secondaries of the potential transformers either individually or by connecting the secondaries in ... RB = broken-corner delta resistance, ohms La = potential transformer primary inductance during saturation, millihenrys (inductance of primary ...
Tópico(s): Non-Destructive Testing Techniques
1959 - Institute of Electrical and Electronics Engineers | Transactions of the American Institute of Electrical Engineers Part III Power Apparatus and Systems
Includes Index The Burndy Library Collection at the Huntington Library. Book.
1911 - Gale Group | NCCO SciTechMed 2 of 2
... times full-load current, may flow in a transformer winding for a period following the moment when ... has not been generally appreciated, however, that other transformers already connected to the power circuit near the transformer being switched may also have transient magnetizing currents ... rate than would the inrush current of the transformer being switched if the others were not connected. ... in the transmission line circuit connecting the parallel transformers with the generating source is shown both by ...
Tópico(s): Geoscience and Mining Technology
1941 - Institute of Electrical and Electronics Engineers | Electrical Engineering
Giles Smith, Andrew Robson, John Fryer, Portia Colwell, David Brown, Tim Albone, Greg Hurst Political Correspondent, Frances Gibb Legal Editor, John F. Hansen, James Harding, Alexandra Williams, Arthur Doughty, Richard Hobson, David Rose, Michael Evans Defence Editor, Nikki Lennox, Philip Howard, Carol Midgley, Camilla Cavendish, Hilary Finch, Christine Seib, David Chater, James Ducker, David Charter Europe Correspondent, Tim Woolford, Wendy Ide, James Hider, Jeremy Whittle, Kevin Eason, Lucy Bannerman, Joe Joseph, Robin Pagnamenta, Ben Webster Transport Correspondent, Valerie Elliott Countryside Editor, Siobhan Kennedy, Deborah Haynes, Tom Bawden, Dominic Walsh, Dan Sabbagh Media Editor, Michael Harvey, Dalya Alberge Arts Correspondent, Rodney Legg, Alan Hamilton, David Haldane, Elizabeth Colman, Jenny MacArthur, Anatole Kaletsky, Rhys Blakely, David Hands, Jonathan Richards, Martin Turner, Tim Teeman, David Charter, Sue Mallia, Hugo Rifkind, Greg Marcar, Derwent May, Edward Gorman, Dr Stuttaford, Gary Duncan Economics Editor, Oliver Kay, Catherine O'brien, James Harding Business Editor, Tom Baldwin, Cllr Richard Kemp, Jill Sherman Whitehall Editor, Ann Treneman, Simon de Bruxelles, Rob Wright, Arsineh Ghazarian, A. R. T. Kemasang, Mark Hunter, Edward Gorman Motor Racing Correspondent, Gabriel Rozenberg, Neil Harman Tennis Correspondent, David chater, Tony Evans, Raymond Keene, Adam Sage, Christine Buckley, David Shiels, Sean O'Neill, R. M. Edwards, Nigel Hawkes, Jeremy Page, Neville Scott, Chris Campling, Sandra Parsons, Damian Whitworth, Marcus Leroux, Richard Caborn, John Carr, Peter Dixon, Gabriel Rozenberg Economics Reporter, Nick Hasell, Kevin Maher, Robin I. M. Dunbar, Julian Muscat, Paul Simons, Michael Herman, Nigel Kendall, Anne Ashworth, Dearbáil Jordan, Philip Webster Political Editor, Robert Crampton, Barbara Young, Sandy Pratt, Steve Hawkes, Emily Ford, Dominic Maxwell, Matthew Parris, Judith Salomon, George Caulkin, Russell Jenkins, Michael Austin, Jonathan Coote, Alan Lee, John MacAllister, Peter Riddell, Sandra parsons, Tony Dawe, Carly Chynoweth, Philip Webster, Jacqui Goddard, David Sinclair, John Naish, Lewis Stuart, Alan B. Shrank, Martin Waller, David Fulton, Chris Ayres, Anne Sebba, Mark Baldwin, Nigel Hawkes Health Editor, Ashling O'Connor, Benedict Nightingale, Angus Batey, Rick Broadbent Athletics Correspondent, Sam Coates Political Correspondent, Dr Thomas Stuttaford, Stephen Dalton, Tim Luckhurst, Leo Lewis, Adam Sherwin, Michael Evans, Alexandra Blair Education Correspondent, Olav Bjortomt, Anil Sinanan, Miles Costello, Colin Perkins, Fiona Hamilton, Fay Schopen, David Robertson, Joe Bolger, Christopher Irvine,
... heavy metal thunder The really sickening thing about Transformers is how well it has already done at ... Ide recommends Maggie Gyllenhaal's addict mother instead Transformers 12A, 146mins Sherrybaby 15,96mins Running Stumbled No ...
2007 - Gale Group | TDA
Distribution transformer secondary faults are shown to be potentially difficult for a primary interrupting device to clear. Evaluation test ... is confirmed to be inversely proportional to the transformer voltage rating, directly proportional to the one-half power of kVA rating, and dependent upon transformer and system grounding connections. The trend toward lower transformer impedances may create problems for interrupting devices since ... voltage are higher. Laboratory circuits using typical distribution transformers can be set up to be equivalent to ...
Tópico(s): Power System Reliability and Maintenance
1968 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Power Apparatus and Systems
First Edition Published 1909 under Title: Stationary Transformers; Includes Index Provenance: W. K. Mccord Stamp on Front and Back Pastedown.; The Burndy Library Collection at the Huntington Library. Book.
1913 - Gale Group | NCCO-STM 1of2
M. Milković, F. E. Luborsky, D. Chen, R. E. Tompkins,
An electronic current transformer uses an amorphous material core transformer which operates into a virtually zero ohm load by use of feedback type ... directly proportional to the primary current of the transformer. Due to the very low flux density created ... are reduced substantially. An advantage of the electronic transformer is, among others, that a current transformer of reduced size may be used. Application of the amorphous alloys in small electronic current transformers and other devices appear to be justified where ...
Tópico(s): Magneto-Optical Properties and Applications
1977 - IEEE Magnetics Society | IEEE Transactions on Magnetics
FROM A CORRESPONDENT, FROM OUR CORRESPONDENT, FROM OUR AERONAUTICAL CORRESPONDENT, FROM OUR LABOUR CORRESPONDENT, FROM OUR MONTEVIDEO CORRESPONDENT, From Our Own Correspondent, FROM OUR OWN CORRESPONDENT, FROM OUR DIPLOMATIC CORRESPONDENT, FROM OUR INDUSTRIAL CORRESPONDENT, FROM OUR PARLIAMENTARY CORRESPONDENT, From Our Parliamentary Correspondent, FROM OUR SHIPPING CORRESPONDENT, R. S. FROST, Chairman, West Area, EDWIN WELLS, Honorary Secretary and Founder, Postal Reform League. 13, Collinswood Drive, St. Leonards-onSea, Sussex, May 9., E. R. WILKINSON, Commercial Manager, British Electricity Authority. Trafalgar Buildings, 1, Charing Cross, S.W.1, May 9., JAMES W. STEWART, Secretary, Coal Merchants' Federation of Great Britain, Victoria House, Southampton Row, W.C.1., ST. VINCENT TROUBRIDGE, Garrick Club, W.C.2, May 9., From A Special Correspondent, J. T. BERESFORD., CECIL. Chelwood Gate, Haywards Heath, Sussex., STANLEY JENNINGS, Mayor of Canterbury., FROM OUR ARCHITECTURAL CORRESPONDENT, FROM OUR CRICKET CORRESPONDENT, FROM OUR RACING CORRESPONDENT, FROM LLOYD'S,
... Eisenhower To Visit London Luncheon With The Queen, Transformers For U.S. U.S. Firms Under-Bid ...
1952 - Gale Group | TDA
L. R. Rabiner, Ronald W. Schafer,
... in a minimax sense) linear phase FIR Hilbert transformers can be designed efficiently using a Remez optimization ... paper presents useful design data on wideband Hilbert transformers with even and odd values of N, the ... of equal lower and upper transition regions, Hilbert transformers with odd values of N can be realized ... N. (ii) The peak approximation error for Hilbert transformers with odd values of N is determined primarily ... widths. (iii) The peak approximation error for Hilbert transformers with even values of N is determined primarily ...
Tópico(s): Advanced Electrical Measurement Techniques
1974 - Institute of Electrical and Electronics Engineers | Bell System Technical Journal