LEADER 01666nam 2200541 450 001 9910460676003321 005 20200520144314.0 010 $a0-295-80609-5 035 $a(CKB)3710000000346461 035 $a(EBL)3444622 035 $a(SSID)ssj0001470866 035 $a(PQKBManifestationID)11826931 035 $a(PQKBTitleCode)TC0001470866 035 $a(PQKBWorkID)11412023 035 $a(PQKB)10034783 035 $a(MiAaPQ)EBC3444622 035 $a(OCoLC)901270158 035 $a(MdBmJHUP)muse48940 035 $a(Au-PeEL)EBL3444622 035 $a(CaPaEBR)ebr11014906 035 $a(CaONFJC)MIL817920 035 $a(EXLCZ)993710000000346461 100 $a20150211h20032003 uy 0 101 0 $aeng 135 $aur|n|---||||| 181 $ctxt 182 $cc 183 $acr 200 10$aNatural grace $ethe charm, wonder, and lessons of Pacific Northwest animals and plants /$fWilliam Dietrich ; drawings by Brenda Cunningham 210 1$aSeattle, Washington ;$aLondon, England :$cUniversity of Washington Press,$d2003. 210 4$dİ2003 215 $a1 online resource (246 p.) 300 $aDescription based upon print version of record. 311 $a0-295-98293-4 320 $aIncludes bibliographical references. 606 $aNatural history$zNorthwest, Pacific 608 $aElectronic books. 615 0$aNatural history 676 $a508.795 700 $aDietrich$b William$f1951-$0909822 702 $aCunningham$b Brenda 801 0$bMiAaPQ 801 1$bMiAaPQ 801 2$bMiAaPQ 906 $aBOOK 912 $a9910460676003321 996 $aNatural grace$92474281 997 $aUNINA LEADER 05621nam 2200709Ia 450 001 9910450696403321 005 20200520144314.0 010 $a1-281-07149-8 010 $a9786611071493 010 $a0-08-055427-X 035 $a(CKB)1000000000413926 035 $a(EBL)319163 035 $a(OCoLC)476115053 035 $a(SSID)ssj0000225452 035 $a(PQKBManifestationID)12078323 035 $a(PQKBTitleCode)TC0000225452 035 $a(PQKBWorkID)10230387 035 $a(PQKB)10037034 035 $a(MiAaPQ)EBC319163 035 $a(CaSebORM)9780750680745 035 $a(PPN)170272249 035 $a(Au-PeEL)EBL319163 035 $a(CaPaEBR)ebr10206038 035 $a(CaONFJC)MIL107149 035 $a(OCoLC)935264743 035 $a(EXLCZ)991000000000413926 100 $a20070714d2008 uy 0 101 0 $aeng 135 $aurcn||||||||| 181 $ctxt 182 $cc 183 $acr 200 10$aPower systems modelling and fault analysis$b[electronic resource] $etheory and practice /$fNasser D. Tleis 205 $a1st edition 210 $aOxford ;$aBurlington, MA $cNewnes$d2008 215 $a1 online resource (650 p.) 225 1 $aNewnes power engineering series 300 $aDescription based upon print version of record. 311 $a0-7506-8074-1 320 $aIncludes bibliographical references and index. 327 $aFront cover; Power systems modelling and fault analysis; Copyright page; Contents; List of electrical symbols; Foreword; Preface; Biography; Chapter 1 Introduction to power system faults; 1.1 General; 1.2 Structure of power systems; 1.3 Need for power system fault analysis; 1.3.1 General; 1.3.2 Health and safety considerations; 1.3.3 Design, operation and protection of power systems; 1.3.4 Design of power system equipment; 1.4 Characteristics of power system faults; 1.4.1 Nature of faults; 1.4.2 Types of faults; 1.4.3 Causes of faults; 1.4.4 Characterisation of faults 327 $a1.5 Terminology of short-circuit current waveform and current interruption 1.6 Effects of short-circuit currents on equipment; 1.6.1 Thermal effects; 1.6.2 Mechanical effects; 1.7 Per-unit analysis of power systems; 1.7.1 General; 1.7.2 Single-phase systems; 1.7.3 Change of base quantities; 1.7.4 Three-phase systems; 1.7.5 Mutually coupled systems having different operating voltages; 1.7.6 Examples; Chapter 2 Theory of symmetrical components and connection of phase sequence networks during faults; 2.1 General; 2.2 Symmetrical components of a three-phase power system 327 $a2.2.1 Balanced three-phase voltage and current phasors 2.2.2 Symmetrical components of unbalanced voltage or current phasors; 2.2.3 Apparent power in symmetrical component terms; 2.2.4 Definition of phase sequence component networks; 2.2.5 Sequence components of unbalanced three-phase impedances; 2.2.6 Sequence components of balanced three-phase impedances; 2.2.7 Advantages of symmetrical components frame of reference; 2.2.8 Examples; 2.3 Analysis of balanced and unbalanced faults in the sequence reference frame; 2.3.1 General; 2.3.2 Balanced three-phase to earth short-circuit faults 327 $a2.3.3 Balanced three-phase clear of earth short-circuit faults 2.3.4 Unbalanced one-phase to earth short-circuit faults; 2.3.5 Unbalanced phase-to-phase or two-phase short-circuit faults; 2.3.6 Unbalanced two-phase to earth short-circuit faults; 2.3.7 Unbalanced one-phase open-circuit faults; 2.3.8 Unbalanced two-phase open-circuit faults; 2.3.9 Example; 2.4 Fault analysis and choice of reference frame; 2.4.1 General; 2.4.2 One-phase to earth short-circuit faults; 2.4.3 Two-phase to earth short-circuit faults; 2.5 Analysis of simultaneous faults; 2.5.1 General 327 $a2.5.2 Simultaneous short-circuit faults at the same location 2.5.3 Cross-country faults or simultaneous faults at different locations; 2.5.4 Simultaneous open-circuit and short-circuit faults at the same location; 2.5.5 Simultaneous faults caused by broken and fallen to earth conductors; 2.5.6 Simultaneous short-circuit and open-circuit faults on distribution transformers; Further reading; Chapter 3 Modelling of multi-conductor overhead lines and cables; 3.1 General; 3.2 Phase and sequence modelling of three-phase overhead lines; 3.2.1 Background 327 $a3.2.2 Overview of the calculation of overhead line parameters 330 $aThis book provides a comprehensive practical treatment of the modelling of electrical power systems, and the theory and practice of fault analysis of power systems covering detailed and advanced theories as well as modern industry practices.The continuity and quality of electricity delivered safely and economically by today's and future's electrical power networks are important for both developed and developing economies. The correct modelling of power system equipment and correct fault analysis of electrical networks are pre-requisite to ensuring safety and they play a critical role 410 0$aNewnes power engineering series. 606 $aElectric power system stability$xMathematical models 606 $aElectric fault location$xMathematical models 608 $aElectronic books. 615 0$aElectric power system stability$xMathematical models. 615 0$aElectric fault location$xMathematical models. 676 $a621.31015118 700 $aTleis$b Nasser D$0881920 801 0$bMiAaPQ 801 1$bMiAaPQ 801 2$bMiAaPQ 906 $aBOOK 912 $a9910450696403321 996 $aPower systems modelling and fault analysis$91969927 997 $aUNINA LEADER 02205nam 2200397Ia 450 001 996387260403316 005 20221108034445.0 035 $a(CKB)4940000000086750 035 $a(EEBO)2240901232 035 $a(OCoLC)49520838 035 $a(EXLCZ)994940000000086750 100 $a20020404d1678 uy 0 101 0 $aeng 135 $aurbn||||a|bb| 200 12$aA touchstone for gold and silver wares$b[electronic resource] $eDirecting how to know adulterated and unlawful goldsmiths works, and the greatness of the cheat therein; and how to punish the offenders, and recover recompence to the party wronged. : Being a treatise of great use for every buyer of plate, and all buyers and wearers of silver-hilts and silver-buckles, and all other kind of goldsmiths works. /$fBy W.B. of London, goldsmith 205 $aThe second edition with additions, comprising the principal matters relating to the goldsmiths and cutlers trades, and material things concerning all other manual trades. 210 $aLondon $cPrinted for J. []r, in Cliffords [], and Z. [] ...$d167[] 215 $a[18], 218, [149] p 300 $aImperfect: imprint faded, with loss of print. 300 $aDate of publication suggested by Wing. 300 $aIncludes: Here followeth a brief and easie way by tables, to cast up silver to the standard of XI ounces ij. peny-weight. And gold, to the standard of XXII carracts. : With questions wrought by the golden-rule; also by decimal tables. / Calculated by John Reynolds, of the Mint in the Tower. London : [s.n.], Printed in the year, 1678. on [149] p. at end. 300 $aReproduction of original in: Wellcome Institute for the History of Medicine. 330 $aeebo-0186 606 $aPrecious metals$xAssaying$zEngland$vEarly works to 1800 606 $aGoldwork$zEngland$vEarly works to 1800 606 $aSilverwork$zEngland$vEarly works to 1800 615 0$aPrecious metals$xAssaying 615 0$aGoldwork 615 0$aSilverwork 700 $aW. 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