Безрученко В.Н., Xотян А.С. Электрические машины

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9JIeKTpHlIeCKOH 9HeprHH Tpex<l>a3Horo TOKa C QJJ;HHMCOOTHOllle-

HHeM JIHHeHHbiX Hanp5l:H<eHHH H TOKOB B 9JIeKTpHlIecKylO 9Hep-

rHlO Tpex<l>a3Horo TOKa C JJ;pyrHM COOTHOllleHHeM 9THX :H<eBe-

JIHlIHH.

KaK npaBHJIO, Tpex<l>a3HbIMH BbInOJIH5IIOTC5I CHJIOBble

T~aHc<t>opMaTOpbI, npeJJ;Ha3HalIeHHble JJ;JI5InepeJJ;alIH H pacnpeJJ;e-

JIeHHfl 9JIeKTpHlIeCKOH 9HeprHH Ha TpaHC<PoPMaTOpHbIX nOJJ;CTaH-

IJ.H5IX npOMbIllIJIeHHbIX npeJJ;npH5ITHH.

B CHCTeMaX 9JIeKTponepeJJ;alIH, rJJ;e Tpe6yeTcfl npeoopa30-

BbIBaTb OOJIblliHe MOlll,HOCTII (ooJIee

80 000

KB •

A),

BMecTO

Tpex<l>a3Hblx TpaHc<PoPMaTopoB HCnOJIb3YIOTC5I rpynnbI, co-

CT05llll,He H3 Tpex 0JJ;Ho<l>a3HblxTpaHc<l>opMaTOpoB. 06'bllCHfleTC5I

9T0 rpoM03JJ;KOCTblO Tpex<t>a3HbIX TpaHc<l>oPMaTopoB OoJIblliOH

MOlll,HOCTH H CJIO:H<HOCTblOHX TpaHcnopTHpoBKH OT 3aBOJJ;OB-

H3roTOBHTeJIeH JJ;OMeCTa MOHTa:H<a.

06MOTKH Tpex 0JJ;Ho<l>a3HbIx CHJIOBbIX TpaHc<l>opMaTOpoB;

COCTaBJI5IlOllI,HX Tpex<l>a3HylO rpynny, coeJJ;HHfllOT Me:H<JJ;yCOOOH

B 3Be3JJ;y HJIII B TpeyrOJIbHHK.

MarHHTOnpoBoJJ; Tpex<l>a3Horo TpaHc<l>oPMaTopa COCTOHTH3

Tpex BepTHKaJIbHbIX CTep:H<HeH, 3aMKHYTbIX Me:H<,nyCOOOHCBep-

xy H CHH3Y 51pMaMH.

npHHIJ.Hn oopa30BaHHfl Tpex<l>a3Horo TpeXCTep:H<HeBOrO

TpaHc<l>opMaTopa 3aKJIIOlIaeTCfl B c,lIe,nylOllI,eM. BbillOJIHHM Tpex-

<l>a3HylO rpynny H3 Tpex 0,nHo<l>a3Hblx TpaHc<l>opMaTopoB

(pHC.

9.1, a),

no OOMOTKaM KOTOpbIX

A, B

TeKyT CHHYCOIl-

JJ;aJIbHbIe.TOKH, CJJ;BHHyTbIe BO BpeMeHH OTHOCHTeJIbHO JJ;pyr

JJ;pyra Ha yroJI

2n/3

pa,n. oy,neM ClIHTaTb, lITO COOTBeTcTBylOllI,He

MarHHTHble nOTOKH TaK:H<e CIIHycOH,naJIbHbI, T. e.

sin

wt,

<DB

sin

(wt - 2n/3),

<Dc

<1>m

sin

(wt - 4n/3).

1/.&

bla'

PRC.

9.1.

06pasoBaRRe TpeXCTepJKHeSOrO TpexepasHoro

TpaHcepopMaTopa

(a-e)

Hero cxeMa

(e)

.• OO'be,nHHHM TpH CTep:H<H5I

I, 2

(CM. pHC.

9.1,

B OJJ;HH

OOlll,HH, TorJJ;a cyMMapHbIH MarHIITHbIH nOTOK B HeM

~<1>

<1>A

<DB

<Dc

[sin

sin

(rot - 2n/3)

+"sin

(wt - 4n/3)]

[sin

rot

+ sin

rot

cos

2n/3-

- cos

sin

2n/3

sin

rot

cos

4n/3 -

cos

rot

sin

4n/3]

<Dm[sinwt(I-0,5-0,5)-coswt(V3/2- V3/2)]

(9.1)

Cne,noBaTeJIbHO, STOT OOlll,HH CTep:H<eHb MO:H<HOyJJ;aJIHTb, no-

JIylIHB cIIMMeTpHlIHbIH Tpex<l>a3HbIH TpaHc<l>oPMaTop (pHC.

9.1, 6).

B 1889

O • .uOJIHBO-.uOOpOBOJIbCKHH OTMeTHJI, lITO

na,neHHe MarHHTHoro nOTeHIJ.HaJIa B 51pMax TpaHc<l>oPMaTopa

<l>a3bI B HeBeJIHKO H npe,nJIO:H<HJIHX y,naJIHTb, nOJIylJHB OoJIee

KOMnaKTHbIH TpaHc<l>opMaTOp (pIlC.

9.1,

8). 3Ta KOHCTpyKIJ.HH

nOJIylIHJIa BCeOOlll,ee pacnpOCTpaHeHHe. TaKOH MarHHTonpOBO,n

He BnOJIHe CHMMeTpHlIeH; lJTOObI YMeHblllHTb HecHMMeTpHIO,

celIeHHfl flpMa BbInOJIHfllOT HeCKOJIbKO OOJIbme celIeHHH CTep:H<-

HeH. KpOMe TOro, TaKafl MarHHTHa51 HecHMMeTpHH CKaSbIBaeTC5I

TOJIbKO Ha TOKe XOJIOCTOrO XO)la: B OOMOTKe <l>asbI

(cpeJJ;HHH

CTep:H<eHb) OH oy.n;eT MeHbIiIe, lIeM B JJ;PYrux <l>asax. Ho, KaK

nOKa3aHO B n.

8.10,

TOK XOJIOCTOrO XOJJ;aOKa3b1BaeT BeCbMa

M8JIoe BJIHHHHe Ha pa(SoqHe TOK~ ot)MOTOK. Ha KaQIiA crep-

>KeHb HaCa1KHBaIOT ooMOTKY BH H HH (PHC.

9.1,

2), n03TOMY

npH CHMMeTpHqHOM nHTa~rueM HanpH>KeHHH H paBHOMepHOR

Harpy3Ke BCe epa3hI HaXO.zVITCSI B OJJ;HHaKOBhIX ycnOBHSlX.

CneJJ;OBaTeJIbHO, BbIBeJJ;eHHbIe paHee epopMyJIbI H cxeMbl 3aMe-

rueHHSI ,AJISI0JJ;Ho¢a3Horo TpaHeepopMaTopa CnpaBe,AJIHBbI H JJ;JISI

Tpexepa3Horo TpaHcepopMaTopa. I1cKJI~qeHHe COCTaBJISIeT pe-

>KHM XOJIOCTOrO xOJJ;a, Ha KOTOphlH OKa3blBaeT BJIHSlHHe cxeMa

coeJJ;HHeHHSIOOMOTKH.

L{pyroH ocooeHHocTh~ Tpexepa3HbIx TpaHcepopMaTOpoB SlB-

JISleTCSIHeoOXOJJ;HMOCTbcOOJI~,AeHHSI HaqaJI H KOHUOB npH co-

e,AHHeHHH KaK nepBHqHbIX, TaK H BTOPHqHbIX OOMOTOK (epa3)

tpaHcepopMaTopa. 06bIqHO nepBHqHaSi H BTOpHqHaSi OOMOTKH

(epa3hl) HMe~T O,AHHaKoBoe HanpaSJIeHHe HaMOTKH Ha CTep>KHe

TpaHcepopMaTopa; n03TOMY HanpaBJIeHHe HX MarHHTHhlX no-

TOKOB OJJ;HHaKOBoe, TaK KaK COe,AHHeHHe OOMOTOK COrJIaCHoe.

ECJIH >Ke HaqaJIa H KOHUhl epa3 nepenyTaTb, TO coeJJ;HHeHHeMO-

>KeT no~yqHThCSI BCTpeqHOe, qTO npHBe,AeT K HapyweHH~ HOP-

MaJIhHOH paOOTbI TpaHcepopMaTopa.

Ha pHC.

9.1,

2 nOKa3aHO 0003HaqeHHe HaqaJI H KOHlI.OB nep-

BHqHbIX H BTOPHqHbIX OOMOTOK:

A, B, C

X, Y, Z

COOTBeT-

CTBeHHO HaqaJIa H KOHUbI epa3 OOMOTKH BH;

COOTBeTCTBeHHOHaqaJIa H KOHlI.hl epa3 OOMOTOKHH.

06MOTKH coeJJ;HHSllOT«3Be3,AOH»

(Y;

HJIH «TpeyrOJIhHHKOM»

(.6.;

L{);

COe,AHHeHHe nOKa3bIBa~T YCJIOBHbIMH 0003HaqeHHSlMH

qepe3 JJ;pOOb,B KOTOpOH qHCJIHTeJIb - OOMOTKa BH. HanpHMep,

eCJIH OOMOTKHTpaHcepopMaTopa CoeJJ;HHeHbIno cxeMe «3Be3,Aa -

3Be3,Aa», TO yCJIOBHOe 0003HaqeHHe OYJJ;eT

;cxeMa «3Be3,Aa

C HyJIeBhlM npOBOJJ;OM- TpeyrOJIbHHK» 0003HaqaeTCSI

¥-/

b. .

9.1.

rpynnbl coeAHHeHHH TpexClJa3Hblx TpaHcqJopMaTopoB

L{o CHX nop npH H3yqeHHH paooTbl TpaHcepopMaTopoB MhI

nOJIaraJIH, qTO BeKTophI

3L{C

COBnaJJ;a~T no epa3e.

31'0 cnpaBeJJ;JIHBO JIHWb npH oJJ;HHaKoBoH HaMOTKe H O,AHO-

HMeHHoR MapKHpoBKe BbIBO,AOBnepBHqHOH H BTOPHqHOH ooM0-

TOK (pHC.

9.2, a).

ECJIH >Ke B TpaHcepopMaTOpe H3MeHHTb Ha-

npaBJIeHHe HaMOTKH OOMOTKH HH HJIH }Ke npH coxpaHeHHH Ha-

MOTKH nepecraBHTb oo03HaqeHHSI ee BhIBOJJ;OB (pHC.

9.2, a -

CKOOKax).• TO BeKTOp

OKa}KeTCSI CJJ;BHHyTbIM no epa3e OTHOCH-

TeJIbHO

Ha yrOJI

a -

180°

(PHC.

9.2, 6).

AHaJIOraqHO 06-

, CTOllT JJ;eJIOH <;.0 CJJ;BHrOM BeKTopoB nepBHqHOrO H BTOPHqHO-

fO HanpSl}KeHHH, nOCKOJIbKY JJ;JISIBHeWHeR Harpy3KH (noTpe-

6HTeJISI)

3JJ;C

H HanpSl}KeHHe HMe~T oAHHaKoBY~ epa3Y.

130

i"·

B Tpexepa3Hbix TpaHcepopMa-

-!topax yroJI

3aBHCHT TaK}Ke

11 OT cxeMhI coe.n.HHeHHSI nep-

-~1IH0H H BTOPHqHOH 06MOTOk,

tJIpHtieM ero 3H.aqeHHe MO>KeTH3-

MeHSlTbCSIOT

,AO

360°,

a KpaT-

riocTb C,ABHra COCTaBJISIeT

30°.

3aBHCHMOCTH OT 3HaqeHHSI

yrJIa

TpaHcepopMaTOphl pa3-

.,l{eJISI~T Ha rpynnhl coe,AHHeHHH,

. KOTOphle 0003Haqa~T lI.HeppaMH

qaCOBOro lI.Hepep6JIaTa:

1, 2, 3,

4,'5,6,7,8,9, 10, 11

KaK BHJJ;HOH3 pHC.

9.2,

,AJISI0)1,Ho¢a3Hblx TpaHcepopMaTopoB

\BQ3MO}KHbI ,ABe rpynnhl cOe,AHHeHHH:

flY/le8afl

(pHC.

9.2,

UleCmafl

(pHC.

9.2, 6). B CCCP

BhrnycKa~T 0,AHo¢a3Hhle TpaHc-

'epopMaTopbl TOJIbKO HyJIeBOH rpynnbl (yroJI

0),

KOTopaSi

0603HaqaeTcSI

1/1-0.

fpynna coeJJ;HHeHHSIonpe,AeJISleTCSITaK: BeKTOp nepBHqHOrO

JIHHeHHOro HanpSl}KeHHSI COBMerua~T C UHeppOH

qaCoBOro

UHepepOJIaTa, TorJJ;a BeKTop BTOpHqHOrO JIHHeHHOro HanpSl}Ke-

HHSIYKa}KeT HOMep rpynnbl COe,AHHeHHSI;eCJIH }Ke BeKTopbI COB-

na,AalOT - rpynna HyJIeBaSi. MO}KHO onpe,AeJIHTb rpynny,

pa3,AeJIHB yrOJI CMerueHHSI

3THX BeKTopoB Ha

30.

L{JISI npHMepa Ha pHC.

9.3

nOKa3aHbI cxeMbl COe,AHHeHHSI

06-

MOTOK

H COOTBeTCTBy~ruHe BeKTopHbIe ,AHarpaMMbI ,AJISI

'HyJIeBOH (pHC.

9.3,

H wecToH

(9.3, 6)

rpynn. Ha pHC.

9.4

H300pa}KeHbI cxeMbI coeJJ;HHeHHSIOOMOTOK

1.6.

H COOTBeTCTBylO-. •

., W:~,

w~~c

Z 6

X_ Y Z

C fl

J ••• ~

'b'W~

UJ·

A.K!~

Y/Y-O

Y/Y-

f .

PRC.

9.3.

fpymlbl coeAHHeHRll O(lMOTOKrpex!f>s3Horo rpsHclf>oPMsrops npR

I,'

CXeMe

y/y

PHC.

9.2.

fpynnbI coe~HHeHHll00-

MorOK o~H~a3Horo rpaHo¢opMa-

ropa

PHC.

9.4.

fpynni>1 COe,lJ,HHeHHii06MOTOKTpex(jJa3Horo TpaHc(jJopMaTopa npH

cxeMe

Y/6

I.U.HeBeKTopHble ,lJ.HarpaMMbl .n.JHI

OdUl-lHadlfamou

(pHC.

9.4,

nflfnou

(pHC.

9.4, 6)

rpynn.

PaccMoTpeHHble qeTblpe rpynrrbl COe,lJ.HHeHHH

(0, 6, 11

Ha3bIBaIOT

OCH08HblMU.

113 HHX rryTeM KpyroBoH rrepeMapKHpOB-

KH MO>KHO nOJIyqHTb H ,lJ.pyrHe

(npOU380dHble)

rpyrrrrbl COe,lJ.H-

HeHRH: npH cxeMax

6./6. -

qeTHbIe, a rrpH cxeMax

16.

6./y -

HeqeTHble. HarrpHMep, eCJIH B TpaHc<popMaTope c

rpyrrrroH COe,lJ.HHeHHH

Iy -

BbIBO,lJ.bIOOMOTKH HH rrepeMap-

KHpOBaTb H BMeCTO rrOCJIe.n.OBaTeJIbHOCTH

abc

rrpHHHTb nOCJIe-

,lJ.OBaTeJIbHOCTb

cba,

TO BeKTOp

Dab

rrOBepHeTCH Ha yrOJI IX

120°,

oopa3yeTcH rpyrrrra

Iy -

rrepeCTaBHB 0603Ha-

qeHHH BbIBO,lJ.OBy rpyrrnbI

IY -

rrOJIyqHM rpyrrrry

Iy -

H T. ,lJ..

CCCP BbInYCKaIOT TpeX<pa3Hble CHJIOBble TpaHC<popMaTopbI

TOJIbKO ,lJ.ByX rpynn: HyJIeBOH H o.n.HHHa,lJ.u.aToH, qTO 06JIerqaeT

HX BKJIIOqeHHe Ha rrapaJIJIeJIbHyIO paooTy.

9.3.

napannenloHast pa60Ta TpaHcCIJopM8TOpOB

.up06JIeHHe 06I.U.eH TpaHC<popMaTopHOH MOI.U.HOCTHHa pH.n.

napaJIJIeJIbHO paOOTaIOI.U.HX TpaHC<popMaTopOB (HX rrepBHqHbIe

H BTOpHqHble 06MOTKH COOTBeTCTBeHHO BKJIIOqeHbI napaJIJIeJIb-

HO) n03BOJIHeT:

JIyqIlIe peIlIHTb rrp06JIeMy pe3epBHpOBaHHH :lHeprOCHa6>Ke-

HHH nOTpe6HTeJIeH;

TI'I

llCI

4rj

4ti

.~j

~ICI

.~j

Iii

PHC.

9.5.

CxeMbi BKJIIOlJeHHlI

(a)

H 3aMemeHHlI

(6)

TpaHc(jJopMaTopoB, nOllB'

JleHHe Hanpll)KeHHlI

!1U

npH HX napaJlJleJIbHOii pa60Te c pa3HblMH K03ljxj>H-

UHeHTaMH TpaHc~opMaUHH (~ HJlH npHHa,lJ,Jle)KHOCTHK pa3HblM rpynnaM

COe,lJ,HHeHHii06MOTOK ~)

OTKJIIOqHTb qaCTb TpaHC<PopMaTopOB rrpH YMeHbIlIeHHH Ha-

rpy3KH;

yrrpocTHTb opraHH3au.HIO npO<pHJIaKTHlIeCKorO peMOHTa.

npH 3TOM ,lJ.OJI>KHbIObITb COOJIIO,lJ.eHbICJIe,lJ.YIOI.U.HeTpH yCJIO-

BHH BKJIIOqeHHH Ha napaJIJIeJIbHyIO pa60Ty:

HOMHHaJIbHble nepBHqHbIe H COOTBeTCTBeHHO BTOpHqHbIe

HanpH>KeHHH ,lJ.OJI>KHbIObITb O,lJ.HHaKOBbI,T. e. ,lJ.OJI>KHbI6bITb O,lJ.H-

HaKOBbI Ko3<Ixlmu.HeHTbI TpaHc<PoPMau.HH

= ... =

);

2)·

napaJIJIeJIbHO pa60TaIOI.U.He TpaHc<PoPMaTopbI ,lJ.OJI>KHbI

rrpHHa,lJ.JIe>KaTb K O,lJ.HOHrpyrrrre COe,lJ.HHeHHH;

napaJIJIeJIbHO paoOTaIOIII.He TpaHc<PopMaTopbl .n.OJI>KHbI

HMeTb O,lJ.HHaKOBbIeHarrpH>KeHHH KopOTKoro 3aMblKaHHH

(Ukl

UkIl

= ... =

Ukn).

PaccMoTpHM rroOqepe,lJ.HO nOCJIe,lJ.CTBHHHeCOOJIIO,lJ.eHHH3THX

yCJIOBHH.

HepaBeHCTBO Koa!IJ!lJHQHeHToBTpaHc!lJopMaQHH, T. e. k

=1=

(rrO,lJ.pa3yMeBaeTCH, qTO

VIII).

npH 3TOM Me>K,lJ.y

napaJIJIeJIbHO BKJIIOqeHHbIMH TpaHc<PopMaTopaMH (pHC.

9.5, a),

nOJIHble corrpOTHBJIeHHH KOTOpblX

Zkl

ZkIl

(CM. rr.

8.9),

B03-

HHKaeT ypaBHHTeJIbHbIH TOK, oOyCJIOBJIeHHbIH pa3HocTbIO BTO-

PHtIHbIX HarrpH>KeHHH (pHC.

9.5,

8):

!:J.(jl(~kl +

~kII).

3roT ypaBHHTeJIbHbIH TOK rreperpy>KaeT TpaHC<PoPMaTOp

c 60JIee BbICOKHM BTOPHqHblM HarrpH>KeHHeM XOJIOCTOrO xO,lJ.a

(c MeHbIlIHM Koa<P<PHu.HeHTOMTpaHc<PoPMau.H1i). TpaHc¢opMa-

TOp C OOJIbIlIHM Koa<P<PHu.HeHTOMTpaHC¢OpMau.HH OKa3bIBaeTCH

He,lJ.orpy>KeHHbIM. nOCKOJIbKY rreperpy3Ka TpaHc¢opMaTopOB

He,lJ.OrrycTHMa, rrpHXO,lJ.HTCH CHH>KaTb OOI.U.YIO Harpy3Ky. Ha

npaKTHKe ,lJ.OrrycKaeTcH rrapaJIJIeJIbHaH pa60Ta TpaHc¢opMaTO-

133

POB, ecJlH pa3J1HqHe B HX Ko*l>HUHeHTax TpaHc<jJopMaUHH He

npeBblIllaeT

0,5

a )J,JlH TpaHcepopMaTopoB c

3 -

60Jlee

1 %. B

3TOM CJIyqae 3HaqeHHe

I1U

6y.u.eT He60JlbIllHM H

ypaBHHTeJlbHbIH TOK He3Ha

IHTeJlbHbIM.

HeoJUlHaKOBbie rpynnbl coe.llHHeHHJI.

3TOM cJlyqae Me}K-

lJ,y OlJ,HoHMeHHbIMH3a}KHMaMH BTOPHlIHbIX 06MOTOK B03HHKaeT

pa3HocTb HanpH}KeHHH (pHC.

9.5,

e),

KOTopaH npH HaHMeHbIlleM

B03MO»<HOM 3HaqeHHH yrJla ex

30°

)J,OCTHraeT 3HalleHHH

I1U

sin

15°

0,52U

•

cOBepIlleHHo O)J,HHaKOI!b1X

TpaHcepopMaTopoB ypaBHHTeJlbHblH TOK

!!1U/2Z

0,26U

•

)J,aHHOMcJlyqae BeJlHlIHHa

0,26U

npe)J,cTaBJIHeT C060H

HanpH}KeHHe, npHJlO}KeHHOe K KOpoTK03aMKHyToMy TpaHc-

epopMaTopy, a

HBJlHeTCH TOKOM KopoTKoro 3aMblKaHHH.

CpaBHHB3H 3TH BeJlHqHHbl C aHaJlOrHlIHblMH B n.

8.9,

BH)J,HM,

qTO OHH npHMepHO B

3-5

pa3 npeBblIllalOT HanpH}KeHHe KOpOT-

KOro 3aMblKaHHH H HOMHHaJlbHblH TOK Tp3HcepopMaTopa. KaK

BH)J,HO,TaKoe BKJllOlIeHHe COBepIlleHHO He)J,onycTHMO.

Heo.llHHaKOBbIe HanpJllKeHHSI KopOTKoro 3aMblKaHHSI,

UkI

UkI!.

Pacnpe)J,eJleHHe Harpy30K Me»<)J,y )J,ByMH napaJlJleJlbHO

BKJllOlIeHHblMH TpaHcepopMaTopaMH (CM. pHC.

9.5, 6)

\10»<HO

HaHTH H3 YCJlOBHH

i1zkl

iIlzkI!.

3aMeHHB KOMnJleKCHble BeJIHlIHHbI HX MOlJ,YJlHMH,nOJlYllHM

I I

J;;"

Zkl : ZkIl '

HJlH,

COrJlaCHO n.

8.9,

IIHOM IIIHoM

IIHoM

IIIHoM

7;=

IIIHoMZkIl

=---

IkII

IIHoMZkl

1kI

UkUIHOM

COrJlaCHO Bblpa}KeHHIO

(8.29)

U'k

100 ;

Tor)J,a

IIHoM IIIHoM SIHoM SIIHoM

ukIU'HOM ukIIUIHoM -

-u;;;- :

UkIl

TaKHM o6pa30M, )J,J1HToro lIT06bl TOKH Harpy3KH B napaJl-

JleJlbHO pa60TalOIlI.HX TpaHcepopMaTopax pacnpe)J,eJlHJlHCb npSI-

MO nponopUHOHaJlbHO HX HOMHHaJlbHbIM MOIlI.HOCTSIMSIHo"

H SIIHoM, TpaHcepopMaTopbI )J,OJl»<HbI HMeTb O)J,HHaKOBbieHa·

npH»<eHHH KopoTKoro 3aMblKaHHSI.

.lleiiCTBHTeJlbHO, eCJIH Ukl

Ukll, TO npH napaJlJleJIbHOii

pa60Te 60JlbIlle Harpy}KaeTCH TpaHc$>pMaTOp C MeHbIllHM UK'

H lIT06blHe )J,onyCTHTb ero neperpY3KH, npHxo.u.HTCH CHH»<aTb

06w.ylO Harpy3Ky. CJIe)J,OBaTeJIbHO,HepaBeHCTBO HanpSI»<eHHH

KopOTKoro 3aMblKaHHSI He )J,onycKaeT nOJIHOrO HCnOJlb30BaHHSI

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(8.29)]

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(110, 154, 220, 330, 500

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(puc.

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