%I%JKLMNOPII"DEFDGHGDD

6789!"#""$%&'()*+,-./012"

QRSTUVWBCXYZ""3456789:;<=>?@ABC3*+,*[\X]P^_`ab$%&*+,m%n9opqr,sa
cdef\gh\i<=Xjkl!"#$#$%&'($)*+,-./($012345)*UVW:;<;=>?,@ABCD&EFGHD&IJ,KD&&&&&&CLM;NO,D&PQRNS$GT!"#$`abc_)*Š‹xyz{TuŒ

XYZ[\]Y^,Y_`abcdefghiSjklmno)*

tu%vXwx-y<=z{|}n~•€•‚oƒ„A<€•‚ƒ„C_,…
`almno†‡F|}~•hˆ_‰u?,@pqrABCO,stuvwxyz{|}~•*+,…%8†‡€ˆƒ‰]Š‹XŒ•Ž••‘’e“Xtu%v”•–—˜^%™”•–š˜› tu%v-œ•žWŸ

ƒ¡X¢£u¤¥CX|}€¦#§ƒp

y$%&'()*+,X¨©12-ª«žWp„VV:;› !±l²³*+,m%X456789› !¬-®•de*+,€ˆƒ<=¯°XQR%&'()*+,-.
´–8µ¶·¡˜%†9$%&¸\¹+X<=º»€¼§ƒQRn•‚op^½XV^-V0/0123456789:*;<=>??
@ABCDEF;<*1GHD-V 0-I+ V0
JKLMNOABP• QR*STU:VWXYZE[\1G/D789:*]^_1`abc+de23BP• st=uvBCwww• [\1G/E_1xyz1{|l}~3BP

fgVhiM
jkl4I\\mnop-q-rr1*+,*[\–*+,%†˜X]P•|}_Ž••‘’|}h_“”…%•Æ+Ç\yÙI•Æ+Ç\ÚƒoÄÛÜ•Æ+Ç\ÝÞXœCßàžWp•Æ+Ç\n£tá€&â§ƒV^€ˆ-ã;Wƒä%†XV^nyåæ•‚*+,*[\^çè„•€NOU:V¾¿ÀÁ¿^ÂÃ‚*+,ÄÅ•Æ+Ç\•‚ƒ%&nËÌm•y%¿n¿•m•CÄ%IXÏÐÑo

ÒÓÔÕnœ•§ƒX€T§ƒ£uÄpÖpFE×Ø)éË%&^m%êŸ
ëìX¼í

ÈX£uÉÊ%&nËÌWÍˆo"Î"*+,m%±l²³£X²8îXïAðñ•;–;1—„˜ƒ;™š;›`aFœ_•ž*+,*[\–*+,%†˜X]P*+,*[\KLn,ÌƒL2"-XST…%•Æ+Ç\yÙI•Æ+Ç\ÚƒoÄÛÜ•Æ+Ç\ÝÞXœCßàžWp•Æ+Ç\n£tá€&â§ƒV^€ˆ-ã;Wƒä%†XV^nyåæ•‚*+,*[\^çè„'()*+,-./”ò
U>?@A12–*+,…%8†‡y&†ó*+,ôõ‡˜
UäI&ö÷øÒÓÔÕ89–qr,sayùsa˜Uä%¿m%89–þÿüy!"Ë#$’\+re%˜
Uú¼û12–úüê¨y’\ý89˜U&'(•12–*+,d)e*\Ï+¦‡˜2ä%†XIJn'()¤¥CKL§ƒ€Ä*+,œ•ÿñ€EÊƒ9:ó–%Ùó˜X
12FªnaG§ƒV^-HTCÚƒ„34¸\¹+nïAðñCM½N§^yOƒP€QeReh-ST§ƒ„aUáÝ34¸\¹+X56y VF!W!E!:X!V D!W!YŽde.ÈX/"•Æ+Ç\Äy0"ÿuXtun12§ƒ–34¸\¹+X5
6ÄŽ••‘’e<=7˜„Žde.ÈX8"%&^%¿Xó–9:ó˜-ÿñ€;Ö‚1<ƒ–34¸\¹+“CX#=>8?/@ ABCD˜Ÿ¡¢£¤_¥¦§¨©

Žde.ÈXZ"[%žWp¸\¹+X\]n^v€_`§ƒ^y9:óX12€ˆ-y•Æ+Ç\-a£€IJžWƒ„(1) Principle in the Single Pulse Generator

QPQCª«¬su-®¯'nohD°±§¨©_²h³o4´fb\-dec\Ðe,d6žWpeŒ*+,œ•ÿñXfg(2) Principle in the Reciprocal Pulse Generator*+,Xó$h-[%%&Xi”•:Ýo±l²³¬-®•*+,¨©ðñX56
jk§ƒ9:ó-¬-®•±l²³§ƒp yläó$hÄ[%%&X8m€n§ƒ„-V0:;+V0"o•/Ä"0:;+2V0"X%&pÜ-yqr€st%u|}nv½wV§„

3

ABC,@_•·¸'xyXóœ–[%%&Ä7‚×FEz{˜?ÆÇÈÉvABC•·¶¤¥µ¶¤S1S1

Load-V

Load-VS2S2»ÜÜÝ§©

¹˜‚˜šsºV_»¼,@½¾,vw¿ÀC„ÁÂS1s~ÃC„ÁÂS2sÄÅoh•••Þ;ßBà100mÏKlÐÑo,@ÒÀÓÔŠ‹ÕVŒhÖ×lªSvÀˆ_¿ØÙnoÚ»ÜÜÝ§©

ÊhËÌ_ÍÎsnoh•••

Voltage2VÞ;ßBà100mV0ÏKlÐÑo,@ÒÀÓÔhÕ2Vh_J½Û±sÇÈÉnÚTime

S2 onÞ;ßBà10m|}X±l²³*+,¨©~• (€H15µ)ABC²å£¤æ{à35mç¯áâãsWv®ÜÝÇÈÉvABC,@•·éê_~•GTèC„ÁÂ»¼,ä/•µ=‚(ƒ>"ð³Ç„…Ò,d…‘†‡

R‰\Š+•eieyK5ÚƒoÄ¨%P:;Xqr,“€‹BWƒŒ•Ž°!$••‘% Xsa€m%n’9§ƒ§ƒQR-“”€:<W‚oƒ„/ˆµ=‚(ƒ>"i0",d…‘†‡ÒÓÔÕtuœCXNOxX²8YñsaX¿W
ŒŽ°Œ•

NO

ëS

›Ž°Œ•

NO2PQRNS$GTU)•e–—
U%J*\Ï˜™
UÁ¿f•šm%U*+,m%ìíŒ•N2NO2îïl[oGTðDìíñæNa2SO4çh_GTA. C. Gentle et al. “Reaction chemistry and optimization of plasma remediation ofNxOy from gas streams”, J. Appl. Phys., Vol.78, No.3, pp.2074-2085 (1995)

4

#žº]

,.•\Õm%XM•
ˆ_òól10eV¨ô_?€õBö;,-s÷øùnoÚŸ ¡¢£¤¥ö¦÷øÒÓÔÕ€ˆƒqr,sa12X§9‡^¨©Âª‡«%IL¬b-®¯yVol.122-A, No.7, pp.676-682 (2002)

fúGTl[ÈDëûQ›üB³ý_þFÿs·ånoÚNon°7±²•XXy±²³ì80g/kWhnn•§ƒ„,@!Ðs"#J½$%n&'D,-(ô_)*?ø³ÈŸ-(ôÒ+-,,&- &./0PQRN&€õBö;12_34*56½7oÚ&Experimental Procedure±l²³€ˆƒm%êŸ%&X´µCoaxial cable(35m)Barrier-typecylindrical reactor

Gas inTungsten wire

Flow rate
1.0 – 6.0 l/min

Grass cylinder
Copper meshComponents
NO 170ppm
O2 15vol%N2 85vol%Silicone oil

éË%&^m%êŸëìX¼í

±l²³£X²8îXïAðñ

Gas out

Temporal change in discharge pattern#žhLight [V]Charging voltage: -30kV
50-5-10-150

12Time [!s]345••±²ì^••±²³ì^X¼í

……
.
1st

2nd

3rd

13th

14th

€õBö;12+8_'9&-:ô;ÇÈÉv®-o;__DCLM;NO,Ò<=>ÃÚ
?@>ABCAs[È"øÚÇÈÉv¢sB³øÚ50•oùsa12€º§ƒ»\ÔÄ$BƒÍ:-Æi%±X§9€ˆƒ²³*+,m%XÕd¶·°#žh2007.5.22."¼½0¾²8îX¸¹NO±²ì^±²³ìX¼í
2004.2.17."¼½0¾

Ï\*\8O,_€õBö;stuv®Cs7&-lno•DEùdFñ³ý_Ÿf•G·HÀIJ_KLO,*M7NOnH'PQOH•?,RST_²å
æUVW XYZ[çH2O2\]°_^_O`ab_OcQ›üB_·å

CdABCO,æ°?e+60kVçÏ\*\n¿ÀÁžo

Ï\*\Â

Ï\*3Ã

CdƒMfO,_ghC4ijO,_ku6

Ï\*\Ä

Ï\*\HO,l'Cdlm,&oþFÿnô_•ž

õ›,EŠ‹_C4opN„qÔO,l[orstu_vsÏ\*\Å•€NOU:V1„=k\4…ST†8‡ˆ‰€Š‹Œ•VŽ•*•‘C’kõ›,EŠ‹_C4opN„qÔO,l[oCd—wFxyI_zþFS“8”8•–—˜™U:VDPWMš › DST†8‡œ8•Dˆ‰`aD]^_1žŸ ¡*1¢£¤¥h\i>ÆóXˆèÝz{†XÚƒtÇÀÖ‚/ƒäó%IKLX”òCÄ£de*+,«{„ßMÁ=ü;ð,…|±}lu-‹&o„˜ƒ;™~±Èh\i>È%¿€ˆƒÉ0w%†–× Ê!ËÌCËÍ˜¨©Î="FEÏ:;FEHðCµ•;™_€áD„˜ƒ;™š;›h•'&oÖ‚³ABC,def\gh\i>$#,d…‘eÐ€ˆƒ*[•’•JX"""""""""KL£–ÑÒÓ†‡ÝÞ˜€©Ôƒ‰Š‹ÒŒ-Ú@*?ƒô½•·noÚO_[„³…†8s‡¡vw`aˆ

ßd¹•…àá\€â;Ôã/XFîCä!^ÝÖ‚oƒ„¨©Î="FEÕ:;FEFFðCµåä§ƒ^æIEC(¦§1¢¨©ª«|M¬\}-8®¯U°¦*±²³´µ¶MYZ·¸ab¹º»P¼¼1¢¡ª/E½¾±²¿ÀªbÁÂHÃ Ä Å Æ M D Ç ; È É 5 Ê X b V ‡ 8 Ë

õÖ>×Øy%IL¬QR¬Ù?ÚÛÜ×ÕØ×DÕ$FÕÕØ%õÖ>ÝÞØy%IL¬QR¬Ù?ÚÛÜ×ÕØ×DÕ$FÕÕØ%7•‚&'CÌ*ÍÎÏÇÈÉvABC!Ð#_•ŸO,gŽ•C••_e‘m%úáèeé‰eÐê,éÏ^Xëì6<í€ˆ-y]”m%êŸ%&XîÜ‰]nx|•p„â!"ãäMYBÇ;ÈÉ5ÊX/å-,4eCwST†8‡œ8•H•€NOU:V1GCÌ,~ZPw]^_1ÐÑ=ÒÓÔM½ÕBMHDÖ×p1„DØŒpÙ•®VÚ8ÛCÜTœbÝÞPl-Eß¶Màáb-BPFæ*•€NOU:V1„=
PCš › / + B Y F M l } D Ü T œ Cçèéåê3ëDìŒ/íîp‹Œïðb/+Bñpwwww

PCKLç±l²³*+,%üX¸¹òòòòÁó*ôõúûüýúû'Áó(]^_1ö÷øùïðÖþÿ!!"#!$%!%&žŸ ¡²);*+,-¼.

ÊX67*;8/ 0 *Û®¯ËH100/*øù18‡*234/5B;Z<lSTU:VM¬.Bˆ‰=>Ö€C`a?@AB•MC\}9*]^_118‡*ÒÓhi=£¤Ó:/+B&&O_Ÿ’½)*“&®-oOhV”`aiS•ü–R•V”`aiS•ü–R•&&&`aiS_ÐÆ¬-&&&—áCL•CiS_•‚M˜˜&&&^,™šl[oiS&&&IJ,K›œl[oiS•”•ŸO,_žŸh`abc&&&•ŸO,bZ[\ˆ_•·ƒô_#J&•ŸO,_žŸl[oiSPÔ¢C£”¤¥¦ŽFÀ¤¥§ŽF&&&¡&ïóðË#l^ ¤¥¦Ml&ñòó%&^XÂª&¤¥§ŽFh¨©•·ƒôsª«vw¤¥¦ŽF•^,™šl[owiS•IJ,K›œl[o`aiS••ŸO,_žŸl[o®jiS¯4CL•Cl[oiSÒ°v±²•;™³7£_€á,…hwl[o—áCL•CiS_•‚M˜˜8

4´´³`aiS¬-hˆ_•‚M˜˜w´¬-,…´¬-dµ´¬-xy´¬-¯4CL•C•‚B¶¢m¢5·§¸5

Fallow’s model ¶¢m¢Ë½_¹)áÑºæ»¼‰´ç
æ¾ç
æÀçæÁç

—áCL•C•‚B
Simoni’s model
Fallow’s model
Crine’s model
Ramu’s model

Ramu’s model¶¢m¢h§¸5_¹)áÑºæ»¼‰´çæ¿ç

A.C.Gjaerde : “Multifactor Ageing Models- Origin and Similarities”, IEEE Elect. Insul. Magazine, 13, 1, pp.6-13 (1997)ÇÈÉv„˜ABC!Ð#_—áiS•‚B_ÂÃ<„ßBŸ

E.A.Feilat, S.Grzybowski and P.Knight: “Multipulse Stress Aging of Magnet Wire by High Frequency Voltage Pulsesand High Temperatures”, Conf.Rec. of IEEE Int’l. Symp. on Elect. Insul., pp.157-160 (2000)

bcno,½_!Ð¶¢*Ç°¢l#7øÕEv®-o'9,…´CL•Ch^,™šl[ow´CL•C_Ö¸1×lZÃoØ2ŸéêAQ•;™êm¢ ÉÙ¦Úhz†‡ôm¢ ÛÙ¦Ú²…AQ•;™èÜôAQ•;™ÝÜôAQ•;™ÝlD©Ù¾ÚŠ‹Þßw/àáâãÙ¤ÏÒÚsäåv®DæÇ°¢lZÃo ¤¥¦ŽFsfç´lÞß®-oÚÄ„CLÅfš˜PB_bcÆ&#J_<„ßBŸÇÈÉvÇ°¢ÈÉÊ¾ËÌÍÎÏÀËÌÍÎÏ¿ÐÌÍÎÏÈÈ¤ÊÑÐÐÈ¤ÏÈÒÊ¾ËËÓÔ

²…AQ•;™ è_•žl[oiSdeghðñ?(8½_ÇÈÉv!Ðl[o¨òóôõ¶¤u¥ö_`aiS§eÒÇë(ôlÕEv³-_lDABCÇÈÉvÇ°¢l#7øÕEÚ<ì_íîJÒDÇ°¢|ïsiS¬-hvw•‚M˜˜ŒæËçbcÆ&#J_<„ßBPÔÁLÙÊ>I÷ùÈDø>ùú•;B=DÒÊÀÐÐûDÉÊ¾ÌÍÎç!"#$%&&'()*$À¥ÐÀ¾+,-./012345678

9•IJ,K›œl[o`aiS
S.U.Haq, S.H.Jayaram and E.A.Cherney : “Evaluation of Medium Voltage Enameled Wire Exposed to Fast
Repetitive Voltage Pulses”, IEEE Trans. on Diele. and Elect. Insul, Vol.14, No.1 pp.194-202 (2007)4¡¶¢_ABC!Ð¿lZÃo»¼bc,@hABCÇÈÉvÇ°¢h_mü?ƒôh+ƒô½ÒiS_•ü–R•*ý³o?ÆÇÈÉv!Ðl[oIJ,KþåÇÈÉvABC!Ð¿_wÿ×,¼
S.U.Haq, S.H.Jayaram and E.A.Cherney : “Evaluation of Medium Voltage Enameled Wire Exposed to Fast
Repetitive Voltage Pulses”, IEEE Trans. on Diele. and Elect. Insul, Vol.14, No.1 pp.194-202 (2007)•”•ŸO,_žŸh`abc&
àáâS_wßlÒD•ŸO,l[o!"_#ô*<$¬%&½'oh_/(*÷¢¬-®•*+,éËóXô‰+ÏXõö%÷
(a) dV/dt =5 kV/µs (b) dV/dt =100 V/µs
J.P.Bellemo, P.Castelan and T.Lebey: “The Effect of Pulsed Voltages on Dielectric Material Properties”, IEEE
Trans. on Diele. and Elect. Insul, Vol.6, No.1 pp.20-26 (1999)¨©•·¶¢h)*D+,“h_müN.Hayakawa and H.Okubo: “Lifetime Characteristics of Nano-composite Enameled Wire under Surge Voltage
Application”, IEEE Elect. Insul. Magazine, Vol.24, No.2, pp.22-27 (2008)

O,¿_`a)*_-G./0•ŸO,•·ƒô_#J*9$:;$<=$>?$@"$AB$C": DEFGHIJHKLMNOPQFRKSTUOVWXNV-tYZ[\]^'_`a, bc21d'e(f)g*fhi6jk$2-052 (2009)¡ŽF

N.Hayakawa, H.Inano, Y.Nakamura and H.Okubo : “Time Variation of Partial Discharge Activity Leading to BreakDownof Magnet Wire under Repetitive Surge Voltage Application”, IEEE Transactions on Dielectrics and Electrical Insulation,
Vol.15, No.6, pp.1701-1706 (2008)10£”¤¥¦ŽFÀ¤¥§ŽF;<°hABC_“”

V-t1£_27s3ðŠlnolÒý„n&'4-Š5
ABCA120ns
ABCA18s
ABCA108sÇ°¢_67³v°²_67³v

O,½9:vlø-Oh*<$¬„˜ƒ;™š;›%,áâŽFæÇÈÉvÇ°¢hABCA_67ç
lmnopDOPQFRKSTqrstuvwxyEFGHIJHKZUOVWXa$z'{qrst|}f~t$•€•-04-77$(2004)áâÒ:¶O,lC“&oŠ½D,E®-ocdef\gh\il•'ø+ÿXV-ùMl—>ñòó10kHzÁ¿%&y"š>def\gh\i%&:=dV/dt_>“-?¼½_áâ_§*ABC_ˆ&[È;"-_Š5•ŸO,•·ƒô

lm$o‚$ƒ„$D!…†‡…OPQFRKSTqrstuvwxyEFGHIJHK
ZˆF‰WQHTUOVWXNYZa$z'{qrst|}f~tDEI-05-88(2005),hßV”`aiS•ü–R• &&&&&&^,™šl[owiS&&&IJ,K›œl[o`aiS&&&O,l[o9:iS&&&&&-—áCL•CiS_FG³•‚M˜˜•”•ŸO,_žŸh`abc&•·ƒô_ ¡-JH¥IJ¥KR&•ŸO,_žŸl[o`aL_ØM*iS_N¬-£”¤¥¦ŽFÀ¤¥§ŽF!Ð,@¤@h¨©A•·¶¢B_müæ¤¥BŽFç&m%€ˆ-úû•€/o>?ê¨XHTl-üýžWƒ„&&-pq¹˜O›ÁLSl[o—š;›,£&¨©•·ƒôsª«vw ¤¥BŽFŠ‹DáâÒO,•·ƒôl&PøÕEv®-oOh*ÑŠoÚŠ‹$Œ„$•Ž$*••$DEFGHI‘’“HIv”‰•ST–E—˜™š›'œ•žŸ ¡¢˜£¤›¥¦a$z'{qrst|}f~tDEI-07-00 (2007)

ZÑÈl"¼½äLKL]%I%JKLþX$%&KLQRÿCX
!-ëì€Xo‚y¿"#ží‚opÉ½B•p„"ö$€¢oauCÄÚƒ-y•Æ+Ç\n£tá€&â§ƒV^€ˆ-y%$CÄn•§ƒV^XC½ÝoM&Ý!a|}nv½wV§V^-C½B§„"•Æ+Ç\X'³’9-ö$€HTÝ|()¬€Eo‚y'()*+,*[\X89*+ÄB§B§,-ƒoX^-oB§„)¬€./X012X01n#2•y‘„’ein`ÊƒPSC§„

L34Ú--^è¿5oB•p11