ML11346A529
| ML11346A529 | |
| Person / Time | |
|---|---|
| Site: | Indian Point  |
| Issue date: | 12/12/2011 |
| From: | Radatz J IEEE Standards Association |
| To: | Atomic Safety and Licensing Board Panel |
| SECY RAS | |
| References | |
| RAS 21523, 50-247-LR, 50-286-LR, ASLBP 07-858-03-LR-BD01, NYS000010 | |
| Download: ML11346A529 (4) | |
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t The IE.EE Standard Dic.t~!. Of!
ElectrIcal and ElectronIcS Terms...
Sixth Edition Standards Coordinating Committee 10, Terms and Definitions
. Jane Radatz, Chair This standard is one of a number of information technology dictionaries being developed by standards organizations accrei:lited by the American National Standards Institute: This dictionary was developed under the sponsorship of voluntary standards organizations, using a consensus-based process.
ISBN 1-55937-833-6
. \\
OAGI0001222_00001 NYS000010 Submitted: December 12, 2011 EXCERPT
1~Y1J Introduction Since the first edition in 1941 of the American Standard Defiriitions of Electrical Tenns, the work now known as IEEE Std 100, The IEEE Standard Dictionary of Electrical and Electronics Tenns, has evolved into the unique compendium of tenns that it is today.
The current edition includes all tenns defined in approved IEEE standards through December 1996. Tenns ar~ categorized by their technical subject area. They are also associa'ted with the standards or publications in which they currently appear. In some cases, tenns from withdrawn standards are'included when no current source can be found. &irlier editions of IEEE Std '100 included terms from sources other than IEEE standards, such as technical journals, books. or conference proceedings. These tennshave been maintained for the sake of consistency and their sources are listed with the standards in the back of the book.
The practice of defining terms varies from standard to standard. Many working groups that write standards prefer to\\ work with existing definitions, while others choose to write their own. Thus terms may have several similar, although not identical, definitions. Definitions have been combined wherever it has been possible to do so by making only minor editorial changes. Otherwis.e, they have been left as written in the original standard.
Users of IEEE Std 100 occasionally comment on the Ilurprising omission of lI: particular term commonly used in an electrical or electronics field. This occurs because the tenns in IEEE Std 100 represent only those defined in the existing or past body of *IEEE standards. To respond to this; some working groups obtain authorization to create a glossary of terms used in their field. All existing, approved stagdard glossaries have been incorporated into this edition of IEEE Std 100, including the most current glossaries of terms for computers and power engineering.
IEEE working groups are encouraged to refer to IEEE Std 100 when developing new or revised standards to avoid redundancy. They are also encouraged to investigate deficiencies in standard terms and create standard glossaries to alleviate them.
The sponsoring body for this document was Standards Coordinating Committee 10 on Definitions (SCClO), 'which consisted of the following members:
John W. Balde Arthur Ballato' Bruce Barrow William Carey Frank A. Denbrock Jay Forster Jane Radati. Chair Chris Heegard John Horch J. L. Koepfinger Allen H. Meitzler Frank D. Myers David E. Roberts 1111111)1'111111'-'-;
. 8001151778 F.A.Saal Ralph M. ~howers Edward N. Skomal Kenneth L. Swinth Raymond S. Turgel Edward F. Vance OAGI0001222_00002
, (
When the IEEE Standards Board approved this standard on 10 December 1996, it had the following membership.
Donald C. Loughry, Chair Richard J. Holleman, Vice Chair Gilles A. Baril Clyde R. Camp' Joseph A. Cannatelli Stephen L. Diamond Harold E. Epstein Donald C. Fleckenstein Jay Forster*
Donald N. Heirman Ben C. Johnson "Member Emeritus Andrew G. Salem, Secretary E. G. "AI" Kiener Joseph L. Koepfinger-Stephen R. Lambert Lawrence V. McCall L. Bruce McClung Marco W. Migliaro Mary Lou Padgett John W. Pope Also included are the foUowing nonvoting IEEE Standards Board liaisons:
SatishK. Aggarwal Alan H. Cookson ChesterC. Taylor Kim Breitfeldei' (1995-present), IEEE Std /00 Editor Stephen Huffman (1993-1995), IEEE SId 100 Editor
!1.
Assistance was prcivide(j by the IEEE Standards editorial staff.
How to use this dictionary Jose R. Ramos Arthur K. Reilly Ronald H. Reimer Gary S. Robinson Ingo Riisch.
John S. Ryan Chee Kiow Tan Leonard L. Tripp Howard L. Wolfman.
The terms defined in this dictionary are listed in letter-by-letter alphabetical order. Spaces are ignored in this style of alphabetization, so cable value will come before cab signal. Descriptive categories associated with* the term in earlier editions of IEEE Std 100 will folIow the term in parentheses. New categories appear after the definitions (see Categories, below), folIowed by the designation of the standard or stan- -
dards that include the definition. If a standard designation is followed by the letter s, it means that edition of the, stimdard was superseded by a newer revision and the term was not included in the revision. If a designation is followed by the letter w, it means that edition of the standard was withdrawn and not replaced by a revision. A bracketed number refers to the non-IEEE standard sources given in the back of.the book.
Acronyms imd abbreviations are no longer listed in a separate section in the dictionary; rather, they are incorporated alphabetically with other terms. Each acronym or abbreviatio.r;l refers to its expanded term, where it is defined. Acronyms and abbreviations for which no definition was included in past editions have been deleted from this edition of IEEE Sid 100.
Abstracts of the current set of approved IEEE standards are provided in the back of the book. It should be noted that Updated information about IEEE standards can be obtained at any time from the IEEE Standards World Wide Web site at http://standards.ieee.org/.
Categories The.category abbreviations that are used in this edition of IEEE Std 100 are defined below. This infor-mation is provided to help elucidate the context of the definition. Older terms for which no category could be found h~e had the category "StdIOO" assigned to them. Note that terms from sources other than IEEE standards, such as the National Electrical CodeS (NEC) or the National Fire Protection Association, may not be from the most recent editions; the reader is cautioned to check the latest editions of all sources for the mOst up-to-date terminology.
iv OAGI0001222_00003
transfer trip
- 11) I transformer, ideal transfer trip A form of remote trip in which a communication channel is used to transmit a trip signalfromthe relay,location
[0 a remote location (PE/SWG) C37.100-1992 transform analysis A. software development technique in which
[he structure of a system is derived from analyzing the How of data through the system and the transformations that must be pertormed on the data. Synonyms: transfonn-centere4 de-"
sign; transformation analysis. See also: data structure-<:en-tered design; input-process-ou'tput; modular decomposition; object-oriented design; rapid prototyping; stepwisere-finement; structured design; IranSaction analysis.
(C) 610.12-1990 transformation A seg"';ent attribute that determines the trans-lation. scaling, and rotation applied to a segment when it is displayed on a display surtace. '
(C) 610.6-1991 transformation analysis See: transform'analysis.
tr,ansformation function A mapping function that pertonns graphical coordinate transformations such as scaling, rotation, and translation.
(C) 610.6-1991 transform-centered design Sue transform analysis.
transformer (1) A device, which when used, will raise or lower the voltage of alternating current of the Original source.
(NEC/NESC) [86)
(2) (power and distribution transformers) A static electric device consisting of a winding, or two Or more coupled wind-ings, with or without a magnetic core, for introducing murual coupling between electric circuits. Transforlners are exten-sively used in electric power systems to transfer power by
,electromagnetic induction between circuits at the same fre-quency, usually with changed values of voltage and current.
(PE) C57.l2.80-1978r (3) (failure data for power transformers and shunt reae~
tors) A static eleclric device consisting of a winding, or twO or more coupled windings, with, or without a magnetic core, for introducing mutual coupling between eleclric circuits.
Note: "The lransfonner includes all transfonner-related com-
, ponents, such as bushings, L TCs, fans, temperature gauges, etc, and excludes all system-related components, such as surge arresters, grounding resistors, high voltage switches, low-voltage switches, and house service equipment (PE) C57.117-1986r (4) An inductive eleclrical device which uses electromagnetic energy to transform voltage and current levels within, a circuit.
(C) '610.10-1994 (5) See also: dry-type encapsulated water-cooled transformer; dry-type transformer; liquid-filled; or liquid-<:ooled trans-
,former; transformer coupled.
(IA) 668-1987w transformer, alternating-currenl arc welder,A transformer with isolated primarY' and secondary windings and suitable stabilizing, regulating, and indicating devices required for transfonning alternating current from nonnal supply voltages to an a1ternating-<:urrent OUlpUl suitable for are welding.
(EEC) [91J transformer category definitions (distribution, power and
, regulating transrormers) Note:' AII,kVA ratings are mini- '
mum nameplate kVA for the principal windings. Category I includes distribution transfonners manufacrured in accord-ance with ANSI C57.12.20-1974, Requirements for Over-head-Type Dislribution Transfol"l1ers 67 000 Volts and Below; 500 kVA and Smaller, up through 500 kVA, single phase or three phase, In addition, autotransformers of 500 equivalent two-winding leV A Or less that are manufactured as dislribution transformers in accordance with ANSI
,C57.1220-\\974 are included in Category I, even through their nameplate k V As may exceed 500.
(PEl C57.12.00-1987s transrormer' class designations See:
transformer, oil-immersed.
transformer, constant-voltage See: constant-voltage trans-
- fonner, transformer correction' factor (TCFl The ratio of the true walls or watthours to the measured secondary watts or ';"an-hours, divided by the marked'nltio, Nore: The transformer correction factor for a current or vohage transfonner is the ratio correction factor mUltiplied by the ph"-,e angle correc-tion factor for a spec~fiedprimary circuit power factor. The true primary wans or waUhours are equal to the watts or warthours measured, multiplied by the transformer correction factor and the marked ralio. The true primary walts or walt-hours, when measured using both current and voltage trans-formers, are equal to the current transformer ratio correction factor multiplied by the voltage transfonner ratio correction factor mUltiplied by the marked ratios of the current and volt-age transfonners mulliplied by the observed watts or walt-hours. It is usually sufficiently aCCurate to cal~ulate true walts or wauhourS as equaHo the product of the two transformer' correction factors multiplied by the marked ratios muiliplied by the observed wans or watthours.
(PE) [57], C57.12.80-197Br, C57.13-I99) transformer coupled (electrical heating applications to melting furnaces and forehearths in the glass industry) The power modulation device is connected in the primary circuit' of a transformer whose secondary circuit is connected to the glass.
(IA) 668-1987w transformer, dry-type See: dry-type transformer.
transformer. energy-limiting A transfonner that is intended for use on an approximately constant-voltage supply circuit and that has Sufficient inherent impedance to limit the output current to a thennaJly safe maximum value. See a/so: trans-former, specialty.
(PE) [57)
, transformer equipment rating A volt-ampere output together with any other'characieristics, such as VOltage, current, fre-quency, and power factor, assigned to it by the manufacrurer.
Note: J[ is regarded as a test rating that defines an output thai can be taken from the item of transfonrier equipment without exceeding established temperatJre-rise limitations, under pre-scribed conditions of test and within the limitations of estab-lished standards. See also: duty, (PE) i57]
transrormer, grounding See: grounding transformer.
transformer, grounding switch' and gap (capacitance poten-tial devices) Consists of a protective gap connected across the capacitance potential device and transformer unit 10 limit the voltage impressed on the transformer and the auxiliary or shunt capacitor, when used; and a switch that when closed removes voltage from the potential device to permit adjust-ment of the potential device without interrupting high-VOltage line operation and carrier-<:urrenl operation when used. See,,
also: outdoor coupling capacitor.
(PE) 43-1974r transrormer. group-series loop insulating An insulating trans-former whose secondary isarrang~d to operate a group of
,series lamps andlor 'a series group of individual-lamp trans-formers, See also: transformer, speCialty.
(PEl [57J transformer, high-power-faetor A high-reactarice transfonner thal has a power-factor-correc[ing device such as a capacitor, so thaI the input current is at a power factor of not less [han 90% when.the transfonner delivers rated current to its in-tended load device. See also: transfonner, specialty.
(PEl {I16J transrormer, high-reactance (1) (output limiting) An energy-limiting transformer,hal has sufficient inherent reactance to limit the output current to a maximum value. See also: trans-former, specialty, (PE) [57)
(2) (secondary short-circuit current rating) The current in the secondary winding when the primary winding is con-nected to a circuit of rated r-i'llary voltage and frequency and when the secondary terminals are short-circuited. See also:
transfonner, specjalty.
(PE) [57]
(3) (kilovolt-ampere or voltampere short-<:ircuit input rating)
The input kilovolt-amperes or volt-amperes at rated primary vollage with the secondary terminals short-<:ircuited. See also: transformer, special[y.
(PE) [57) transformer. 'ideal A hypothetical 'transfonner that neither stores nor dissipateS energy. Note: An ideal transformer has the following properties: Its self and mutual impedances are OAGI0001222_00004