كتاب رائع فى شرح الكهرباء( توليد , نقل, توزيع , حماية...
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كتاب رائع فى شرح الكهرباء( توليد , نقل, توزيع , حماية ,دوائر).pdfTRANSCRIPT
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bONL VFA UuL oOI WOMODKH WOuB) wd UNM l{ d{ wUF rOKF WOd VFAK WOMu UO UM U LN UU bF wMODK UNM UM uFA 5 tUJ cQ v wMODKH UN w Wb* WdA uLK WOLM wU ou WOdI1b rOI aOd UU wMODKH
uK WOL) WD) U u wu c lL* b oI UN s w rOKFK WOzd WKOu t w UNM* WOL sLJ VUD rKF* bO v_ _ rKFK jOu bB* t_ UNM* dUM b wb* UJU WU WUM jzUu s UdO d_ rKF WOK; WUI uU( Xd rKF qzU s dO v WU{
bU* VJ wMN* wMI rOKF UNM* UND s v_ WKd* oOD UF c u d lOMB qOLweM* UBwbMH U we wUMB tdH uU _ nB UN qI* UF w uU wU nB UNM V UNFO wKL dE UU VJ bf* qLF uHBK UF rOKFK WOb* VJ lOL b XKL b wUF rOKF WOd uJ ZUM* WOKOK% WO1uI U qL wdJ rOKF UJA U w WO WOM lOu vK UOU u
wMODKH rOKF WOu 5% ud duD WKu* UuL UOI YU* lOL w qd* eO UU UI Ub v dA b_ uHBK e$ w rKF* W WOb* VJ bF dOu wIDM qN uKQ X{d UuKF UF s tOK qLA U0 rKF rOKF WOKL w WOU .uI VOU WDA_ qzUu fb ozdD qB W{ dR sLC WuM d
uc* WOL) WD) U l UNb uuI sc ULKF* 5LKF* 5ud WUA0 U uM Ud UNOIM VJ WFd r bI w dOG l w duD qbFK WKU WOd& UF WFd v v_ s UFD u d s uN s tO c U bI0 e wMODKH wb* UJ WLO UO( UN wuuMJ wLKF rOKF w U du dOOG ub sc WOb* VJ b U w 5BB* s sJ2 b d WUA su wd w d nOQ wU w ZUM* ed UN WONM0 WFd* s WFu UOKLF s
bOu vK qLF c WOb ULEM* UR* v dbI dJA qe bI UNF wUF rOKF WOd
ZUM* dA* wU* UNLb UJOK WuJ WU WIbB WOdF b UK s wU wMu qLF c U$ w XU w WOMu Wud UHJU dH u UL qLA tFu V yq eOL* ruN rNUA vK rdJA WOb* VJ bS uI w Wud 5LLB* qLF Uu 5UA* sd; 5HR* d ZUM*ed Wu ZUM* U'
oOD UM bO* s WOb* VJ d w 5UA* 5FUD 5Fd* 5UdwUF rOKF WOd
ZUM* e?d
wU uU
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WbI
bF sOKdL qC vK B tK r dOGL UO dz UM _ e w U r UL LJ ULF UdN UJ c wQ
rJ dz WO lDI `OUH WOzUdNJ quJ u_ w WOOzd qOu dz u_ w wzUdNJ UO bOu d s US v_ bu b d bI bN UO U W sOuI WU YKL dz Y WLM dz q WOzUdNJ bbL w WbL WOzUdNJ quJ WOU bu XUM bI qUF sO ULO eOOL UN VUD U bN UNM WFMBL UL u eOd WId VOd YO s WU bU WUFU wzUdNJ UOK quJ c qL b vKL bbL WId UNMO
WdO WFU WOzUdNJ quJ WUL w WO lDI `OUH WOL_ WOU buK WKLJ WU bu dF l wzUdNJ qL u V UUO WId `OUHL c sO eOOL UN VUD U bN
`OUHL c vK WuJL WOzUdNJ ud WU v dF WOzUdNJ UL_ qOGA w WOOUMGL luI vK bLF w rJ dz v US dD r UN WU WOzUdNJ dzb r WId UNUD b luI c qL b v VUD ndF
qOBHU u{uL c v dD rO YO dA wU nB UNML WbIL p uK q UMK qC_ rbI UMFD U UMU UJ c rJb sO lC s
UNML c d rJUOu rJUdS UMOK
uHR*
oOu w tK
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U???u??;
WFd
bu
W
U b
u
WOU
bu
v
_ b
u
UM* UO dz
u_ w UM* UO bOu Ub WLM Ou u_ WO WJA vK UL_ Ou u_ w UM* UO dz w bI bI qUF
WOUMB WOzUdNJ bbL
WOzUdNJ UJ qOJK dO_ WF bb% dOJ PAM* lUB* w WOzUdNJ WUD lu WLE
WOzUdNJ WUu WUL( UOU
WOzUdNJ WUL( U luI iQ WLE
rJ dz
WOOUMGdNJ rJ UOU WOzUdNJ Ud; qOGA rJ dz r
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b???????????????????uUM* UO dzUM* UO dz
u_ wu_ w
-
u_ w UM* UO dz v_ bu
u_ w UM* UO bOu _ b WU bu W X S UIU pF d UL uD U bu s uD U UO bOu r rOI uBI rOI WOU s WU uN W wDF UNU qJA w UL iF UNCF l uD
W UbI W UH d s q iF UNCF s nK UNMJ Wu* qJ WUFH dR qJA w j* tOd 5* u_ w bu vL U uJ W bu* c bN bu UNM q qJA UHK* s UuL W vK wOUMG* U* fH bu* c w
qBHM bu UNQ UU9 BHM
1
U
X
Z
W V
Y
1'
2
2'
3
3'N
S
U
XZ Y
W V
V1
V2
V3
u_ w bu qJA uD WU bu qJA
UHK W vK u_ w UO bu u bu YO wOUMF* U* fHM lC WNUA WOO d WdOQ uN WOzUdN WF u UNO U nK vLEF WLOI fH d fH UN
UF*U uN' c vDF ? Uu
X Y Z
U V WUHK* s UuL qJA
-
v1 = Vmax sin( t)
v2 = Vmax sin( t-120!) (1.1)
v3 = Vmax sin( t-240!)
Vmax = V 2
qJA 5 W UHK* w U w uNK WUFH WLOI V vLEF WLOI w Vmax YO c UNM t q 5 uD d uJ W UN0 uN' c qO9 sJ1 uN' c Uu
WOU UF*U vDF w qJA w `{u u UL W tOK
V1 = V 0
V2 = V -120 (1-2)
V3 = V -240 = V 120
UUF U We uJ d W vK u% u_ WO bu* d s cG* UL_ W UNd
u_ w UE uN Uu qJA
u_ w UEM uN' UN qJA
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Ub WLM Ou wU b Ub WKOu WLM WKOu UL iF UNCF bu* UHK d qOu UId UM
u_ WO UL_ jd pc 5KOu UK qLF
e WU w (Y) WLM WKOu
WdA* W&UM WDIM vL iF UNCF l bu* UHK UUN j r WKOu s uM c w d Ub U WDIM c iQ r U qJA N edU UN ed UF* bU; dDU bN UO( W uD) s j 5 bN' wL uD) vL u0 ULU qu UNU
(Line Voltage) VL j) bN dFO 5D 5 bN' U (Phase Voltage) V
ph uD
(PhaseCurrent) Iph
uD UO bu* UHK b w U* UO vL (LineCurrent)j) UO A dD s U) j) w U* I
A uD) b w U* UO dF UL
qJA w WMO UO uN' c IL
bu* w WLM WKOu qJA
wK UL ULNMO WF `O{u sJLO bNK WMU U j)UO U uDUO UM sJ1IL = I
ph
WLM WKOu w uD bN j) bN 5 WF UI
wK UL UNU sJ1 uD) uN u_ uN 5 WF U qJA v UMS pc V
L j) bN U0
VL = V
LL = V
L1N - V
L2N
V
L = V
L1N + (- V
L2N)
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WLOIK WUF* WLOI bN' (-VL2N
) bN' UC U& t0 tM dF wMe dOF w (V
L2N)
5 qJA (VL2N
) bNK qL* tLKuc* UU&30 VL1N
VL
-VL2N
VL2N
VL j) bN U qJA qJA s `C
(VL)2 = (V
L1N)2 + (V
L2N)2 - 2 (V
L1N) (V
L2N) cos 120
UL VO uU oOD - t YO
(VL)2 = (V
ph)2 + (V
ph)2 - 2 (V
ph) (V
ph) cos 120
(VL)2 = (V
ph)2 + (V
ph)2 - 3 (V
ph)2 (- 0.5) = 3 (V
ph)2
S wUUV
L = 3 V
ph (1-3)
WKOu w VL
j) bN' WUFH WLOI uD bN' WUFH WLOI d 3 U WLM YO uD) uN WOI U sJ1 WIdD fHM uD) u_ uN' UN* qJA 5 W s nK j) uN s W k uL s oI sJ1 uD uN s uL* WMU U( pc dHB U j) uN
uD uN
30V
L1N
VL
VL2N
VL
VL
VL3N
w uD) u_ uN' UN* qJAWLM WKOu
WLM WKOu w UO
u_ UO U uD) UO U UH d UL
IL = I
ph (1-4)
-
c V l UO UM WLM WKOu w qJA s `C UL I
N UO( UO u U(U
WOD) UOK wU& lL' qU U cI
L3 I
L2 I
L1
dH U IN
UO uJ e WU w c w U YO qJA s `C UL I
L3 YU UO l I
L2 I
L1 sUO WKB WU(
iUM WO dH pc U wU& lL' "U I
L3 U& WKB; U& UU&
WLM WKOu w UO qJA
wU& lL'U IL2
IL1
sUO WKB U s tUM sJ1 IN UO S e b WU w U
qJA w UL IL3
YU UO l UOU& dO_ lL& r sIL3
IL1
IL2
IN
IL3
IL1
IL2
IN
= 0
b WU w WLM WKOu w UO UN qJ e WU w WLM WKOu w UO UN qJ
e WU w Ub WKOu
WKOu s uM c w S WLM WKOu s fJF vK Ub WKOuqJA `{u j) bN l uD bN U t UL bU d t bu
V
L = V
ph (1-5)
udO uU ULFU qJA b uD) UO u_ UO 5 WF UtS
IL = I
ph1 - I
ph2
WUFH WLOI UM sJ1 WLM WKOu w j) bN U( UH u uD) fH UU uD UO WUFH WLOI d 3 U I
L j) UO
IL = 3 I
ph (1-6)
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UA Ub WKOu WMU WF X
W k pc UM Ub WKOu w uD) u_ UO UN qJA 5 s oI sJ1 ULNMO We w dH u U uD UO s W s nK j) UO s
e WU w uD UO uL* U( pc dHB U j) UO uL
30Iph1
IL
Iph2
IL
IL
Iph3
U WKOu w uD) u_ UO UN qJA bu* w U WKOu qJA
u WO WJA vK UL Ou YU b UUF uJ V e oOI Ub WLM WO vK qLK WKL* W dUMF qOu sJ1 U t_ e WU w UbF uJ UO( w U* UO S WLM WKOu w WU W dH
? Uu U nK WUFH WLOI w WU UO c uD) UO uL
IN = I
L1 + I
L2 + I
L3 = 0 (1-7)
vK u% U v W c R UEM vK dOU UO( j) W sJ1 pc v UbM WU( vI pc We XO UL rEF uJ lu w t WF s U{u W We* UL_ WU w UO j b uJ sJ1 WLM WKOu wMF c WLzU UO( qu* jI qu Ub WKOu ULMO WUF WJA w UL_U We dOG UL_ WU w uu Ud;U qJA qJA w `{u We* dO We* UL_ 5 dH UO( j) b
e b WU w nK ULMO W tM UFU2 U e* qL( eOL YO
-
20
20
20
20
20 20
n
Ub WLM wKOu w (Balanced loads) We UL qJA
20
40
60
20
40 60
n
Ub WLM wKOu w (Unbalanced loads) We dO UL qJAwK UL w t_ w qL u_ w bB 5 WHK* Ou s WuL UMN o UL UL
qJ WL$WL$ WKOu
n
Iph
Vph
Iph
Vph
IL
VL ININ
Vph
NV
ph
WL$ WL$ WKOu qJ
bBLK uD bN pc qLK j) bN U bBLK j) bN qJA s `CULMO UU qL(
VL = 3 V
ph
WU UNK uD UO pc qL( bBLK uD) UO UIL = I
ph
WUF bI lu w WKOu c b UU IN = 0 U e* qL( WU w
-
qJAUWL$ WKOu
Iph
Vph
Iph
IL
VL
Vph
N
Iph
Vph
Iph
U WL$ WKOu qJA
qJA s `C
Iph
= IL , V
ph =
VL
3 bBLK V
ph = V
L , I
ph =
IL
3 qLK
qJA WL$ U WKOu ?
WL$ U WKOu qJA
qJA s `C
Vph
= VL , I
ph =
IL
3 bBLK I
ph = I
L , V
ph =
VL
3 qLK
qJA UU WKOu
U U WKOu qJA
-
qJA s `C
Vph
= VL , I
ph =
IL
3 bBLK V
ph = V
L , I
ph =
IL
3 qLK
UqJA w?? `{u u?? UL WL$ WKOu u??u?? u??? w qL bu cG
uD) UO j) bN' WUFH WLOI V
qJAq(
j) bN' WUFH WLOIV
L = 3 V = 3 x 127 = 220V
u_ UOZ = (R2 + X2) = (32 + 42) = 5
Ian
= V
an
Z =
Ean
Z =
Vph
Z =
127
5 = 25.4 A
Ibn
= V
bn
Z =
Ebn
Z =
Vph
Z =
127
5 = 25.4 A
Icn
= V
cn
Z =
Ecn
Z =
Vph
Z =
127
5 = 25.4 A
uD UO U j) UO S WL$ WKOu U0IAa
= Ian
= Iph
= IL = 25.4 A
IBb
= Ibn
= Iph
= IL = 25.4 A
ICc
= Icn
= Iph
= IL = 25.4 A
IN = 0 A UO( UO S e qL( U0 UO( w UO
-
UqJA w 5 u UL WL$ WKOu bu0 U WKOu u_ w qL q
j) UO WUFH WLOI pc qL( s u q UO V
qJAq(
qL( WFU2Z = (R2 + X2) = (62 + 82) = 10
qLK uD bN U u j) bN' WUFH WLOIV
L = 3 V = 3 x 220 = 380V
u_ UO
Iab
= V
ab
Z =
VAB
Z =
VL
Z =
380
10 = 38 A
Ibc
= V
bc
Z =
VBC
Z =
VL
Z =
380
10 = 38 A
Ica
= V
ca
Z =
VCA
Z =
VL
Z =
380
10 = 38 A
IL = 3 I = 3 x 38 = 65.8 A
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u_ w UM* UO dz w bI ld b bI WdU WUF dO WUF v bI rI uD U UM* UO dz w U( u UL U( u q UNJKN w WUFH bI uL w u_ w qL( UNJKN w WOKJ WUFH
WdUE bI WUF dOG bIK WMU pcP
T = P
1 + P
2 + P
3 (1-8)
(P = P1 = P
2 = P
3) u q b U W w WOKJ bI c S Ue qL( U
PT = 3 P (1-9)
UO j) UOL Wb e WU w Ub WLM wKOu w bI c U wK ULOuD UOL s ULF d UN_ j) bN j)
WUF*U b u UNJKN w WUFH bI vDFP = V
ph I
ph cos (1-10)
w qLK WOKJ WUFH bI Vph
uD bN Iph
uD UO 5 We w YOP
T = 3 V
ph I
ph cos (1-11)
U Vph
= VL I
ph = I
L / 3 Ub I
ph = I
L V
ph = V
L / 3 WLM 5KOu UK w
PT = 3 V
L I
L cos (1-12)
U qLK WOKJ WUFH dOG bI S WIdD fHMQ
T = 3 V
L I
L sin (1-13)
wN WOKJ WdUE bI US
T = 3 V
L I
L (1-14)
uI YK WU w uI YK0 UNKO9 sJ1 WdUE bI WUF dOG bI WUFH bI UOLJ sJ1 YO qJA w UL wuF qL( WU w qJA w UL w w qL(
WO WFU WdUE bI U S = (P2 + Q
C2) S = (P2 + Q
L2) (1-15)
SQ
C
PS Q
L
P
uF qL( uI jD qJA w qL( uI jD qJA
-
uI YK* WUFH dO Wd* U WuF WO( dUMF s q vK WOzUdNJ dzb u% UbMrNM qJ WUF dOG bI 5 dHU b
U qJA w `{u* qL( UNJKN w WdUE WUF dOG WUFH bI V nK R = 6 UbI WUI vK u qL( e UEM ULK
50Hz bB* d L=25.46 H t
qJAX = L = 2 f L = 2 50 x 25.46 = 8
Z = (R2 + X2) = (62 + 82) = 10
= tan-1(X/R) = tan-1(8/6) = 53.1
Wu WUF dOG bI uJ pc Wu w tu W S Uw qL( U0
I = Iph
= V
L
Z =
380
10 = 38 A
IL = 3 I = 3 x 38 = 65.8A
PT = 3 V
L I
L cos = 3 x 380 x 65.8 x cos(53.1) = 26 kW
QT = 3 V
L I
L sin = 3 x 380 x 65.8 x sin(53.1) = 34.6 kVAR
ST = 3 V
L I
L = 3 x 380 x 65.8 = 43.3 kVA
WF bU UC WdUE bI U sJ1S
T = (P
T2 + Q
T2) = (262 + 34.62) = 43.3 kVA
u w UM* UO dz w bI UOd u w qL UNJKN w bI UO sJ1
bu dOLu WId UO nK qu YO p `{u qJA e* qL( WU w jI WIdD c b
-
WDI u_ b 5 qL( l u vK bN' nK qu ULMO qL( l wu vK dOLuKqLK WKu WOKJ bI uJ pc UF
PT = 3 P
1 (1-16)
dOLu d w P1 YO
u_ w qL( bI UOI bu dOLu WId qJA
dOL W WId u UL U WL$ WKOu u s dEM iG We* dO We* UL WIdD c b UO eN d uL w qLK WOKJ bI S 5U( UK w qJA w `{u
W bIP
T = P
1 + P
2 + P
3 (1-17)
U WL$ 5KOu w u_ w qL( bI UOI dOL W WId qJA
sdOLu WId `KB w W UE w qJA w W{u* sdOLu WId UU qLF nK qu WIdD c w Ue U u U WKOu WL$ WKOu B qL( U u
-
bN' UHK U c uD l wu vK wU dOLu UO nK a uD l wu vK _ dOLu UO V
cb V
ab j) bN fOI UNU sUNK
u_ w qL( bI UOI sdOLu WId qJA
P2 P
1 sdLu wd uL P qL( d s WJKN* bI U
qUF V sUN' wdI jd qL( d s WJKN* bI S Ue qL( U sJ wK UL qL( b
PT = P
1+P
2 U uFU w U U u 0.5 s d bI qUF U
P2 = P
1 U wI U qL( U U
sUN' b S uFU wU U u 0.5 s dG bI qUF U P
T =P
1+P
2 U UM WU d wDFO P
2
b d uJ uFU wU U u 0.5 U bI qUF U d dOLu dI qL( d s WJKN* bI vDF dH sUN'
U sdLu WId ULFU u_ w qL d s WJKN* bI UO bM UO nK qOu fJ bF d d XU ULMO 6kW sUN' b d XU
WJKN* bI V 2kWq(
WJKN* bI U WU d vD sdLu b _ 0.5 s q qL( b qUF wN
P = P1 - P
2 = 6 - 2 = 4kW
-
bI qUF fU) b kW uKOJU UI UL_U F pKN w WUFH bI 5 WM tQ bI qUF dF w WUFH bI YO dO Xu uKOJU UI WdUE bI vL w WuKD* WOKJ bI bU w wN WUF dOG bI U a Wd( uC d( U q wIOI( qLF eM w bI vL WOKJ bI kVAR WKUH dO Xu uKOJU UI wOUMGdNJ U* u vK
kVA dO Xu uKOJU UI WUF dOG bI WUFH bI s Ze w WdUE WOKJ bI WUFH bI cos bI qUF
cos = P
S (1.18)
wzUdNJ UEM WOUF bI qUF wMF b* wzUdNJ bI UE WOUF bI qUF fOI uJ UbM wzUdNJ UEMK TO b v dOA iHM* bI qUF ULMO dO WOUFH b qLF U pKN wzUdNJ UEM WDu WM* bI q wMF p S bu UU bI qUF q UHJ* WO( UHK* b w bF* w WOUMB bF* S d VU' vK UFH
a u; WOdNJ Ud; U( u UL iHM b qUF UN WUMB w Wb* WOzUdNJ s dO W UM iHM b qUF UN uJ w WOzUdNJ bF* u vK u% w WOUMB QAM* w
c qLA bI qUF 5 uD VKD wUUWOUMB UL_ rEF q9 w WO( Ud; u q
UOKLF dL* UO Ud w rJK b c uI ued udO WOzUOLOdNJ
bN' ULEM uI u wdNJ UK
WO( d_ wdNJ uI d WOOUMG* WLE_ WIU) UHK*
uOM XMuKH UUA
bI qUF dOU
dO XuuKOJU UI WU* WOKJ bI w qL wzUdNJ UEM WF
-
WOU WUF*U vDF bI qUF x WOKJ bI WUFH bI
wzUdNJ UEM WF U l U* wzUdNJ UEM WF U wMF wUF bI qUF YO UEMK d UL WU{ `O c WOzUdNJ UL qB q bM dI d bN' `B
WU( bM wzUdNJ U2 q qLK uKD* wzUdNJ UO `B bI qUF U WU wH wzUdNJ UEM bOUH UJU eN_ d W w UH s qKI wUU qI I2R uIH* bI s qKI
eN w{d dLF s be U2 UdO lu UC u; p UOU wzUdNJ lu UEM bI qUF uJ V YO UdNJ Ud nOUJ UdNJ Ud dH pc bu* bI s uBI UH wzUdNJ UEM UH Ue s qI u vK WEU;U tUD pKN* vK iHM* bI qUF0 oKF Wd
tOK WdG d VM bI qUF* bI qUF qI UbM e wzUdNJ qIM j w U* UO YO wzUdNJ qIM uD WU U VKD U2 wzUdNJ j) w WuIM* WUFH WOzUdNJ bI U bM p WOzUdNJ bOUH e wzUdNJ UO Ue j) nOUJ U w V c qIM j u lDI
j) vK bN' UH U qIM j UH s qKI U2 wzUdNJ qIM jWUFH bIK u; WF tF qI iHM* bI qUF WOzUdNJ u; vK dOU u; WF w qOKI v R bI qUF UH tKb bN' e (kW capacity)
u; bN U v R c WU pc lu UC lDI WU U s b lu UC luI vK dOU bI qUF WU w WuIM* WOzUdNJ bI WLO fH bM WOzUdNJ luIK f `D
iHM* WF pc WdUE bI WF qI iHM* bI qUF l WOzUdNJ bu* vK dOU UHK* w bIH e Exciter dO* WDu UDF* bI e buLK WUFH bI
bu* UH p l qI buLK WOUM
bI qUF 5% eO2 qIM WLE bOu UD; WOOzd nOUJ e iHM b qUF0 WOdNJ UJA qL bM
-
b qUF bM WOdNJ UJA qLF cG* pKNLK s* sL pc wzUdNJ lu bI qUF 5% bzu hK WOU UIM lHd
wzUdNJ buLK WUFH bI WF U wzUdNJ uLK WUFH bI WF U WOzUdNJ WJAU bu q UH U
WJAU bu nOUJ qOKI wzUdNJ qIM uD vK bN' rOEM 5%
bI qUF 5% N sU bOu UD s U WOzUdNJ bI s WUB eO qC vK uBK YO wzUdNJ UEMK UFHd bI qUF uJ dC s p oOI WOU UHJ qLF b UNKLF wOUMGdN U* U% UN wMF U2 WO UL Wb( wzUdNJ lu WLE w UL rEF YO WOzUdNJ lu WD; bI qUF 5% UHJ WU{ bI qUF 5 dD j U0 WOHO Wb wzUdNJ UEMK wKJ UO qOKI v R U2 WKUH UO buL uI UHJ qLF w UL wzUdN bB s cG nK l u vK nJ lC WO( dzb w bI qUF 5%
qJA
AC
I IC
IL
IC
IL
V
I
IL
V
IC
bI qUF 5 nK l u vK nJ l{ qJA
wKJ UO u We bB* bN s dU IL u nJ* qOu q dzbU v UO s bI I
C bI UuF UO V tS nK* l u vK nJ* l{ bM bB* s u*
w UO uL u bB* s u* wKJ UO uJ WU( c w UbI We bB* bNI = I
L - I
C nJ* nK*
U WU( c w WOKJ WUF dOG bI U pc IL s vK IC wMF WU U
Q = V (IL - I
C) = Q
L - Q
C (1-19)
-
qKI U2 WuF WUF*U Xu b WO( WUF* s e b$ WOKJ WUF* WLO v WUF dEMU WOKJ bI qUF 5% v R WuKD* WUF* w qOKI c bB* s WuKD* WOKJ WUF* s
Compensation iuF vL WOKLF c dzbK V UF qJA (inductive reactive power) WO( WUF dOG bI iuF q s tS pc
pc W nJ* WF bb% UJQ UOU bI UHJ lMB bI qUF 5% w Wb* eN_ d s UHJ* dF
WHK U 5 uOMu_ `zd s 5I nK vM w WOU_ dUMF s b s uI UHJ uJ
WOJO Wd u s jK U oO s UID s b
bI qUF 5% d
bI qUF 5 5O 7IdD b b sJ1 bI qUF 5 UHJ* b bMconstant kW correction WUFH bI XO
YO qJA w `{u S WdUE bI rO dOG U cos 2 v cos
1 s
bI qUF 5% q qLK WdUE bI S1
WU w qLK WUFH bI P5 q qLK dQ* WUF dOG bI Q
L
5 bF qLK WdUE bI S2
5 bF dQ* WUF dOG bI QT
QT
QC
S1
S2
P
QL
12
bI XO bI qUF 5% qJA
w uM vK UNU sJ1bI qUF 5 W WbI* WUF dOG bI U tOK
tan 1 = Q
L / P tan
2 = Q
T / P
tan 1 - tan
2 = Q
L / P - Q
T / P = (Q
L - Q
T) / P = Q
C / P
Q
C = P (tan
1 - tan
2) (1-20)
WdUE bI qJA `{u (constant kVA correction) WdUE bI XO pc S
2 5 bF WdUE bI U_U U S
1 bI qUF 5% q
-
bI qUF 5% q qLK WUFH bI P1
5 q qLK dQ* WUFH dOG bI Q1
5 bF qLK WUF bI P2
5 bF qLK dQ* WUF dOG bI Q2
wMe d bU bI qUF 5% - UU WOU U
d; vK WKb WdUE bI SM
d; vK WKb WbI* WUFH dOG bI QC
d; vK WKb WUFH bI PM
Q2
QC
S1
S2
P1
Q1
12
P2
SM
PM
bI XO bI qUF 5% qJA
UI c wJOUJO* qL( q9 WOI* bI U pc PM
s q U uJ d; w dzU) d; bU
U
V 0.6 dQ b qUF bM 360kW L e WOd WD; u od s dQ 0.95 v bI qUF 5 W UHJLK WUF dOG bI
WUFH bI XO s 0.95 v bI qUF 5 wMe d; WOL WdUE bI
WdUE bI XO odq(
WUFH bI XO 1 = cos-1 (0.6) = 53.13 ,
2 = cos-1 (0.95) = 18.19
QC = P (tan
1 - tan
2) = 360 (tan 53.13 - tan 18.19) = 362 kVar
WdUE bI XO 5 q
S = P / cos 1 = 360 / 0.6 = 600 kVA
5 bF P = 600 x 0.95 = 570 kW
-
5 q Q
L = S sin
1 = 600 x 0.8 = 480 kVar
5 bF Q
L = S sin
2 = 600 x 0.3123 = 187 kVar
wMe d; vK WKb WbI* WUF dOG bI S pcQ
C = 480 - 187 = 293 kVar
wMe d; vK WKb WUF bI P = 570 - 360 = 210 kW
wMe d; vK WKb WdUE bI S = (2102 + 2932) = 361 kVA
bI qUF 5 b' WId
bI qUF s bI qUF 5 uKD* nJ* 4I wDF ULF WFzU dD s wtO uu d* bI qUF v qFHU uu*
WOU UF* WU sJ1 tU cos 1 u tMO% d* bI qUF dH
cos 1 bI qUF
cos 1 x WdUE bI WUFH bI
sin 1 x WdUE bI WUF dOG bI
tan 1 x WUFH bI WUF dOG bI
U cos 2 v tMO% - bI qUF dH
cos 2 bI qUF
cos 2 x WdUE bI WUFH bI
sin 2 x WdUE bI WUF dOG bI
tan 2 x WUFH bI WUF dOG bI
WUF dOG bI WUF dOG bI QC WuKD* nJ* b U pc
tan 2
tan
1 WUFH bI
dC qUF WUFH bI tan
2
tan
1 dC qUF
d_ WLO s bI qUF 5 dC qUF b' 5
-
bI qUF 5% b b'
bI qUFtMO% d*
v bI qUF 5 dC qUF1.000.990.980.970.960.950.900.850.80
0.601.3331.1901.1301.0821.0411.0040.8490.7130.5830.611.2291.1561.0961.0481.0070.9700.8150.6790.5490.621.2651.1221.0621.0140.9730.9360.7810.6450.5150.631.2331.0901.0300.9820.9410.9040.7490.6130.4830.641.2011.0580.9980.9500.9090.8720.7170.5810.4510.651.1691.0260.9660.9180.8770.8400.6850.5490.4190.661.1380.9900.9350.8870.8460.8090.6540.5180.3880.671.1080.9650.9050.8570.8160.7790.6240.4880.3580.680.0780.9350.8750.8270.7860.7490.5940.4580.3280.691.0490.9060.8460.7980.7570.7200.5650.4290.2990.701.0200.8770.8170.7690.7280.6910.5360.4990.2700.710.9920.8490.7890.7410.7000.6630.5080.3720.2420.720.9640.8210.7610.7130.6720.6350.4700.3440.2140.730.9360.7930.7330.6850.6440.6060.4520.3160.1860.740.9090.7660.7060.6580.6170.5800.4250.2890.1590.750.8820.7390.6790.6310.5900.5530.3980.2620.1320.760.8550.7120.6520.6040.5630.5260.3710.2350.1050.770.8290.6860.6260.5780.5370.5000.3450.2090.0790.780.8020.6590.5590.5510.5100.4730.3810.1820.0520.790.7760.6330.5730.5250.4840.4470.2920.1560.0260.800.7500.6070.5470.4990.4580.4210.2660.130---0.810.7240.5810.5210.4730.4320.3950.2400.104---0.820.6980.5550.4950.4470.4060.3690.2140.078---0.830.6720.5290.4690.4210.3800.3430.1880.052---0.840.6460.5030.4430.3950.3540.3170.1620.026---0.850.6200.4770.4170.3690.3280.2910.136------0.860.5920.4500.3900.3420.3010.2640.109------0.870.5670.4240.3640.3160.2750.2380.083------0.880.5400.3970.3370.2890.2480.2110.056------0.890.5120.3690.3090.2610.2200.1830.028------0.900.4840.3410.2810.2330.1920.155---------0.910.4560.3130.2530.2050.1640.127---------0.920.4260.2830.2230.1750.1340.097---------0.930.3950.2520.1920.1440.1030.066---------0.940.3630.2200.1600.1120.0710.034---------0.950.3290.1860.1260.0780.037------------0.960.2920.1490.089------------------0.970.2510.1080.048------------------0.980.2030.060---------------------0.990.143------------------------
-
U WMMI* WUF dOG bI b dQ 0.8 b qUF0 400kW WUFH tb wzUdN qL
b' bU dQ 0.9 v bI qUF ld nJLKq(
0.8 tMO% d* bI qUF 0.9 tO uu d* bI qUF
0.266 dC qUF S b' s dC qUF x WUFH bI nJLK WuKD* WbI* WUF dOG bI
0.266 x 400 kVar 106.4
bI qUF 5 WOKLF dD
(Single Compensation) U 5%
WUL( eN qLF YO qL( l dU VUM UHJ bM w qL l nJ qOu ru b vK UHJ* qL( WUL vK wUF UO s
bB* s qL( qB bM qJA w UL dU qL( l u vK UHJ* qu VM UHJ* d; nK w V b wU bN U v R U2 wzUdN buL d; qLF WU w S WdUE bI s vK b WM Q
C nJLK WUFH dO bI WLO bb% r p
WOU WUF* s dA c oI qL
QC (in kVAR) = (0.9 / 1000) x 3 V I
NL (1- 21)
dLK qL UO INL
YO
S no load qL WU w ULMO 0.9 U rated load 4I* qL( bM bI qUF `B pcdLK WMMI* bI l nJLK WUF dOG bI 5 b' 0.95 - 0.98 5 d bI qUF
WE
mdH UUG UHJ* l u vK UUI q r jI UOIU qL UO vK uB( rUHJ* WM
-
L1
L2
L3
UV
WL
1L
2L
3
M3
bI qUF* U 5% qJA
dLK WMMI* bI nJLK WUF dOG bI 5 WF b'nJLK WUF dOG bI
Qc / kVar
dLK WOL bIPn / kW
0.51 - 1.9
12 - 2.9
1.53 - 3.9
24 - 4.9
2.55 - 5.9
36 - 7.9
48 - 10.9
511 - 13.9
614 - 17.9
7.518 - 21.9
1022 - 29.9
QC = 40% Pn30 - 39.9
QC 35% Pn 40
(Group Compensation) WuL 5% UOU
bU b bB s UNcG r w UL_ s WuL* bI qUF 5% r WU( c w qUF 5% r YO U U U W eON vK oDM c UHJ* bM
b* UHJ* bM sL{ WO UL s U UU uJ w Wb* U eN bI w bN bB s UNcG r P = 4.5kW u U UA U eN_ WOKJ bI XU L cos
2= 0.8 v b qUF 5 UHJ bM b d cos
1=0.43 UNb qUF u
WU( c w UNb V w UHJLK WUF dOG bI WLO w U w
-
WUF* b WUF dOG bI Ucos
1= 0.43 tan
1 = 2.1
cos 2= 0.8 tan
2 = 0.75
QC = P (tan
1 - tan
2) = 4.5 (2.1 - 0.75) = 6.075 kVar
(Central Compensation) ed* 5 UU
s eON lOL' bI qUF s% r qJA w UL ed* 5 WU w b vK r qL qJ WUFH dOG bI bb% U qJA dOG qL( YO wOzd u* UN od s b vK UNM q w rJ r UHJ* s WuL vK u UHJ* bM YO bI bI qUF rO bd pc rJ UN uI dOG* qL( WLO V WO WIdD rJ
WUF dOG WUFH
bI qUF* ed* 5 qJA
-
UWOU UHu* pK1 uD w w d
37.3 kW 440 V 50 Hz = 89% dQ cos = 0.85 uKD*
dQ 0.95 v bI qUF ld W WUF bI V WL$ YK WKOu Wuu UHJ* XU u qJ nJ* WF WLO w U
q(wK UL w R w u d; UHu iF `O{u wGM R q q
Pmech = 37.3 kW WU) WOJOUJO* bI q9 37.3 kW bI VL = 440 V d; l uu* bBLK j) bN q1 440 V bN'
WKb bI v WU) bI W U w d; WOUF q1 = 89% = Pmech/Pin d; vK
WUF* V d; vK WKb WUFH bI U r Pin = Pmech = 37.3
0.89 = 41.91 kW
cos 1 = 0.85
1 = 31.8
Q1 = Pin tan
1 = 41.91 x tan 31.8 = 25.98 kVar
cos 2 = 0.95
2 = 18.19
Q2 = Pin tan
2 = 41.91 x tan 18.19 = 13.78 kVar
w W u UHJ* s e* WbI* WUF dOG bI Q
C = Q
1 - Q
2 = 25.98 - 13.78 = 12.19 kVar
w u qJ WUF dOG bI uJ pc Q
C,ph =
QC
3 = 12.19
3 = 4.063 kVar
qJ nJ* WF U sJ1 u qJ WbI* WUF dOG bI WLO vK UM wK UL WKOu u V u
U YK WKOu S pc V
C = V
L = 440 V j) bN w bu nJ* vK bN'
QC,ph
= IC V
C = V
C2 / X
C = V
C2 C
-
C = Q
C,ph
VC
2 = 4.063 x 10
+3
2 50 x 4402 = 66.8 F
U WL$ WKOu uD bN w bu nJ* vK bN'
VC =
VL
3 =
400
3 = 254 V
U pc
C = Q
C,ph
VC
2 = 4.063 x 10
+3
2 50 x 2542 = 200.4 F
bI fHM YK* WKOu WU w UNM d WLM WKOu w bu nJ* WF o U2 `C UHJ qu pc YK WKOu w UNM vK WL$ WKOu WU w WOUL WHKJ uJ wUU
U YK WKOu ULz uD WO dz w bI qUF 5%
bu WK
WOU UKDB* d bI WUF dOG bI WUFH bI d* bNK WUFH WLOI d* bNK vLEF WLOI
bI qUF WdUE
uD WO d* UO dz w WHK* bI 5 jd w UF V uI YK r
qu uD w bN bB vK WL$ WIdD qu uD w qL v Wc bI b 220V U bBLK uD bN 10 U u qJ qL( WUI XU WL$ WIdD
qu uD w bN bB vK U WIdD qu uD w qL v Wc bI b 220V U bBLK uD bN 10 U u qJ qL( WUI XU WL$ WIdD
qu uD w bN bB vK WL$ WIdD qu uD w qL v Wc bI b 220V U bBLK uD bN 10 U u qJ qL( WUI XU U WIdD
3800W U dOLu d V qLK Wc bI XU qLK bI qUF b 10A U j) UO 380V U uD w bBLK j) bN WLO
-
WLO 1900W U tO Wc bI XU uD w qL w U* j) UO WLO V 0.5 U bI qUF 190V U bBLK j) bN
dOG bI WUFH bI pc qJA w 5* uD w qLK j) UO V bI qUF pc qL( d s WJKN* WUF
3-j4
3-j4 3-j4
2200 V
220-120 V220120 V
qJA
jI dO dOLu UN ULFU d* UO dz w WUFH bI UO sJ1 U*
d XU sdOLu WId ULFU e uD w qL d s WJKN* bI UO bM `O b qL( b qUF ULK WOKJ WJKN* bI V 500W sUN' b
uD w bB l WL$ WKOu (X = 15 , R = 20) q WFU2 WUI UHK XK V 50Hz U d 400V U tO j) bN WL$ WKOu uu
j) UO WUFH bI bI qUF ?
UHK* l u vK bB* fH v U WKOu WF fH UN UHJ XK dzb r dQ 0.95 tLO bb b qUF vK uBK nJ* q WF V
WU( c w UEMK WOKJ WOzUdNJ
-
b???????????????????uWOUMB WOzUdNJ bbLWOUMB WOzUdNJ bbL
-
WOUMB WOzUdNJ bbL WOU bu
tbI WOzUdNJ UJ s dO u sL{ Yb( s b WOUMB WOzUdNJ bbL W bM qJA UNOK dF r V YO WOUMB UR* q WOzUdNJ UL_ WcG w Wb* rO UO*U UN bLF* b' UOK UNKL% bI UNUUI UNUHu WdF UNu bb qU
Ubb9 d UL_ c WFOD UNM VUM* qUJ UO
bb% r wJ UNFu d WOUMB bbLK WOU_ buIU ULK uJ s wMHK b s W UKD* dbI WOUMB UR* q WOzUdNJ WUD lu w UL VUM* UEM WOUMB WOzUdNJ UL_ b U UNO r w WOB WIdD WdF s b WOzUdNJ WUD
WOUMB dO bb% vMO Uu d WOUMB bbLK WcOHM UDD* r WOHO WdF tOK Vu WId WOzUdNJ bF* bu sU WOUO WOdH tOOzd WcG UB bu sU WuAJ* WO{_ u UN Wb* uMI UJ U UDD UR* q UNcG
WuKF WOU'
YO lMBLK w_ rOLB WKd w UI b uJ WOUMB WOKLF w UM U s b UdA s dU WOzUdNJ UuKF* s lUBLK WOUL WOzUdNJ UL_ dbI sJ1 WOUM dOG UL_ WU{ sJ1 UL lu* w UNOd q szUJ* eN_ bFLK WFUB nOOJ Wb UL pc UNUL bI U WdF UNO Wb* WUF U WLE WdF0
UdO Wd* _ bUB* WuN
lu u b UO r lMBLK WOUMB dO WOUMBWOzUdNJ UL_ uL vK UL luK p UO U s s qI W WU{ l UdNJU lMB* WcG r WUu c w WOOzd UL_ WcG wUO wzUdN bu u d{ U 5F cR UL wKI*
UNM wzUdNJ UO UDIU `L dbI W UOK UNKL% bI UNu WUD lu qI w Wb* quJ W rO
UNd UN WcOHM UDD* r UNcG WId UL_
-
WOzUdNJ UJ _ b WOzUdNJ UJ vK U qJA b c w dF u UNUb vK U qJA WOzUdNJ WUD lu qI w UNUb u s WOzUdNJ UJ lMB YO WOUMB WOzUdNJ UL_ WcG w
wzUdNJ UOK WU u0 UDG uJ wzUdNJ UOK dL* qJA WKu UdA Ub% UHu0 uJ u b vK eN_ b* WUL(
UI UNKOBH dO UL qJA w 5 u UL UN WFUB wzUdN qO qJAeF `K
s b vK U WOzUdNJ UJ u% qJ WuM* Ub UKD rz u* VK u U UNML WcG UB UL_ s qJA dz u U UNM uKI bF U iF qJA 5 qJA wK UCO
UNUJ UJ c u
WOzUdNJ UJ u iF qJA
v uIM* UO u vK UM WOzUdNJ UJ rOI sJ1
qLA UM* UO U
uD WU U WcG b W 5M 5Ku qO eF b dH qu vK VUG w u% YO
qJA w `{u u UL b u U UNM XLB u U UNM uD U qL
b d XLB uD U qO qJA
-
u_ WO U
UN rO d u W WL WF u W vK UJ u% YOUNuO dJ dE qOBH iF UI
dL* UO U sdAF w t UL d* UO s b WOzUdNJ WUD qI w dL* UO U b U* X% U bU WuIM* WOzUdNJ WUD vK VKD w dOJ UeK dE p dO_ tM qIM WHK qOKI w WOL s UN U* (800) kv v qB WIzU uN bU WU submarine cables
d* UOK WUI* s 20% wu q dL* UOK WUI*wzUdNJ bIHwK U 5 Ub UN tFMB* UdA q s WOzUdNJ UJ w Wb* WKu* U* u Wb
U WL v b* bN' vK UM qOJ rOI sJ1 6kv v Xu 250600 s uN b b iHM* bN' U
(6.6-22) kv s uN b* b ju* bN' U (22-33) kv s uN b* b wUF bN' U
750 kv v (220-345) kv s uN b* b bze bN' U 750 kv s vK uN b* b ozUH bN' U
5L w rI WOzUdNJ UJ WUM w Wb* u*
conductor u* WUM w Wb* u* UNL s U b w UJ WUM w qu* u UO w V uF
quLK WOzUdNJ WOKu* UIM s WOU Wb qu* vK uB( WuN
W UH wUU qu* WU UH UK UOKL w WU quLK WOzUdNJ WU* W
quLK Wd* W WHK UUOI qu* U WHKJ
bA UN WOJOUJO* UbBK UNKL% W b w dB b bM WU WOzUOLOJ dR* d(U UdQ W
U bM tF qUF WuN
-
UNM lMB b w UF* iF b' 5 WHK WKu u s UJ u lMBUMK WMU UNOKu WOzUdNJ UJ WUM w qb c qu*
UMU WUI WOzUdNJ WOKu* V UF* rOI b'
bF* u UM WOzUdNJ WOKu*WC[
UV[
uOMu[uu[
p[bb[
dbB[U[
tOKu* dE WOzUdNJ UJ u lM w UuO d_ U* [ wIM UM dF WOKu wK mK w uOM*_ s q UMK WOuM WUI* YO uOM*_ WOKu0 WUI WOUF w ULF d_ dF uOM*_ WOeM* bbLU WOKb bbL w b c UM WU s C tU( WuF vK VKG bF WU bI qI U w WU dO_ uM WU w UM qu UNKL w bI nF{ qL s tMJ1 U2 UM WU s mK uOM*_ WHKJ s nH U2 UNd UN WH) dE uuB bF s lMB u UM u U qL c UM s tKO s d uJO uuB qu U dEM c_ l dO qJA UNU
v l qJA UA s b Wb bO tKF U2 wu UO fH u s WUF wU* w WU WOeM* bbL w Wb* WOzUdNJ UJ U lMB ld rK w ld rK s UNU d PVC buK qOMO wu U0 WeF WOU Wdz s t YO b* XLB* uM s uJ sJ1 uKI bF VKI WU U w d dD b qu b s b WKUL* u* s We s UUO lMB qOJ qu k* vL dJ vK nK WuN qIM se w d Wd qOJ UD p solid XLBdO
strand conductor b* qu*U qu* c
UA Wb* s b WLB* UJ b d UU wDF lOD q
-
cable insulation UJ u WUM w Wb* u* wU) jO; s WOzUdNJ WUD qL c qu* eF UJ w uF WLN dBM b WF s b b* UF u jO; l d qu l qOu dD lMLO tu c
tO jO; juK d( bI vK tb vK wUU quLK tdOwK U UNOK UM UJ nOMB r b w UJ w Wb* uF dN s
paper insulation WOu uF U polymeric insulation WdLK uF U
gaseous insulation WUG uF U qOBH s iF UNM q W r u
WOu UJ wK U UNL s U b v WOzUdNJ UJ u WUM w u b uF YO
b qOJ wM `L weK qJA nK UI qJ vK UF u s jzd b UO dO UU* WuN tK
UF uK WOzUdNJ WU* U v R UF XeU u VdA WOKL UO WOU WOKOGA d W qL XeU lA* w u qOJ
WIzUH WOUF WDu* uN' s id b w b vK tb WKu Wb dH UM* dL* UO s q w tb WOUJ
UID s uJ XeU lA w qO qJA 5b dz qu A
WFA tO WU tJ BuA U w U C
WeF tO WU tJ DUM s jd s WU WJ E
w uA F
XeU lA u* w w qO qJA
UM s `OK jd Gw H
wzUN J
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w qJA U W 33kv bN lA w qOJ w{d lDI qJA 5 oversheath 5K wu pvc U s uMB wU
sheath - eF qzU vK u% WK WU WI wK seM s e qzU lA w U
(alkyl-benzene) sheath
u* WUL( UK WJ conductor screen sdJ
conductors uOM* UM s tuMB u eF qzU d qON UM
w qOJ w{d lDI qJA WdLK UJ
u U bF p Ub WO u uF UJ cQ b WOUMB WdLK uF b dJ 5O 5uM vK eOd r u t uF c s WHK u pUM UI Ud wQ
UL ULNuOPVC buK qOMO wuU WeF* UJ
(XLPE) Cross-Linked Poly Ethylene Ue' pUA* 5KO wu U0 WeF* UJ
UNKJ w 5d lL U WUF U* c tA PVC buK qOMO wuU WeF* UJ WFzU w d* UO w WKLF* pK WU UJK UOU U tU dF UNLK uF s UeO9 w UNO WOFOD WOzUOLOJ WOzUdNJ hzUB) s bbF du b
YO s d_WOU WOzU dN WU0 UNF9
UNO eF WUI UH UN bIH qUF UH
W bM UF dNBM YO WOKOGA Wu W v qB dK UNUI UH Wu W d
WOJOUJO* UbBK UNKL% UF WKU dO U UN WObF* ueU dQ UN
se d l dN UN bF UM s uMB `K WU qI qO qJA
PVC U0 eF `K dO VKI U d uKI
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iHM bN uKI bF VKI U PVC U0 eF qO 5 qJA
qJA w `{u u UL quJ eOd sJ1 UL
NYFGbY qOJ eOd
U PVC u iHM bN b qO qJA 5 rEF w UJ eOd WOKL b iHM bN uKI bF VKI
vde WOU* UHu* w UL WO*UF UHu
d UO qU qJA 0.6/1KViHM bN
PVC U0 eF `K
qJA wU b' w UL r uOM* U U w u* r xlpe pvc s U lMB w tH quLK WUF WID
r xlpe pvc U s UC lMB w UJL d w WUF WID r Ud uH s U lMB w `OK jd
r xlpe pvc s lMB w b wU) G e WI
c vL NYFGby WFUB WdA s d wD b qJA w 5* qOJ k wU b' w 5 u UL qUJ eOd WOKLF
Wb ed rd(VDE)wU* UE N qLF* eOd UE
UM s qu qu* U u PVCqO Y eF U u
qJA j u qu s uMB dU F quLK dU G U u uI u `OK jd Gb qUJ `OK U u
PVC Y bwU) G U u
(BS) wUDd UEM(vde) wU* UEM UNM UJ eOd WHK WLE UM
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wU*_ VDE UE V UNub ud c iF d sJ1 nO 5 b' Wb ed rd
wU* UE N qLF* eOd UE WOUDdd WLE w t tUA* X
UM s qu qu* U u uOM* s qu A
PVC qO Y eF U u XLPE qO 2
ed* b WOU u CqJA WOu ed* b WOU u CW
u dU UN ed* b WOU ubu VK q
CE dU G U?? u??quLK
UM s uMB dU SWKu WID u dU H
WKu WID e UM s uMB dU SEqJA j u qu s uMB dU F
qJA Wdz Wu R qUJ `OK U u uI u `OK jd Gb
PVC Y G U u dU qu* U u WOK WUL UN u J WUL u
dU qu* U u WOK WUL b u OuKI b
mm2 qu* lDI WU qJA Wdz u r
dz UD u so qu* u
XLB qu eb qu m
dH VK qu huGC qu /v
0.6/1.0kv dI* qUJ bN3.5/6.0kv
jI b' WE
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(XLPE) Cross-Linked Poly Ethylene Ue' pUA* 5KO wu U0 WeF* UJ pK s d uN' s l b w be qJA WU UL XLPE eF U qLF
XLPEU UJ iF qJA 5 (PVC) MS U w WKLF*
WHK uN XLPE u s UJ u iF qJA
UNM PCV U s qC hzUB XLPE U lLwzUdNJ eFK nOF{ bI
W v qB WOKOGA d W PVC U l WUI*U WOUF d( U bM UdI dOB WOM dH p Wu W v qB b dB s ZM d W qL Wu
vK dI UO UNKL% q qO WU wUU d WOzU dN WU
WOUF UODuHK ULF UuO d Wd dN WKu tdL Wb
wK U UNOK UF UNML UH
UNU UI dE WIOC U* w UNb UNOM WuF
uOM*_ s uMB b XLPEu s qO qJA 5
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WOzuN WUD qI uD) b* uOM* s uMB XLPE u s qO qJA
oversheath 5KO wu PVC U s uMB wU sheath j l qu b uOM* s WJ
(insulation) XLPE U0 WeF WKu t UK WI w WUF U* (insulation) XLPE U s d WI
(conductor screen) XLPE U s u* wDG UK WKu t U s WI (conductors) Wb uOM*_ s u
WUG UJ
UNM bO hzUB s UN U* ozUH wUF bN' U e w UG iF b YOd( U s l b* WUG WUK UNUH
UF WKU dO WOU WOzU dN WU
qOJ WF w qOKI
wK U quJ e w Wb* UG sXdJ buK U U
udH U qU) 5dOM U
UAl qJA wK; u w b UNFOL dc WIU UJ s
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WOUMB quJ bb9 d WOU dDU r quJ qI WIdD WMU U
WIdD UNFM U UNu vK dOu* wuB uMI q9 cable ducts uMI s U* uMI pK lMB d v UJ s quJ _ bb9 qIM WM WLz*quM pK UdO WOJOUJO* UN d( WDO; WOU) quF UI WHK u
v lMB U V wuB uMI rOI sJ1 UNM WuMB* u* pK r s cable ducts vI* pO U s WuMB* uMI
WHK UF uU uJ (p.v.c) w w w U dF U 5K wu U qb s WLI uMI pK uJ b Vu' s uH u U UNM oKG u U UNM 5 UNKb quJ V WOKL qON wKb `D WuFM uMI pK eOL
uMI c UJ iF qJA
WHK WOJO uM qJA
[ iHM* bN' quJ qL U qJA pvc ? U s WuMB* uMI qLF quJK raceway UMI WOzUdNJ UuK w wU qJA WuH* WOJO U* qLF kv UU uJ rEM qJA luI vK UNFu UNOd UN wKb dNE* s p UNO d* wd WOzUdNJ WuK wbF* r' vK rJ qJA UNO r UNO dL w quJ b VUM UF
UNU vK tEULK WUM WOJO jd0 Ubb9 s UN bF UNKb quJ j r UL XO UU quJK wKb bbL uJ UbM qLF Vu' WIKG* WOJO uMI U UuK WcG sU s Ud quJ qI r UuAJ UdU bb9 qKUHKJ U U UNO r YO indoorWIKG* sU w b U U WOdH UuK UL v WOOzd quJ s b U* pK qL% WUM WU UNM q bF WU XO wd nI b' vK UUO r YO UUF l VUM WFUB UdA s UI UN b; uBI WF l VUM VUM d qU vK tEU; r U U dEM c_ l UNKb UNKI rO w quJ b vK UM U2 uMI pK uBI WF b% tFUB UdA Ue bdu tEJ uJ U quJ 5
UNOK uB( U UUF l VUM
-
w XML s WuMB* uMI qLF WLzb UM)XML s WuMB* uMI WLz UM qL r YO _ w Uub bbL U quJK WOUMB bbL pK uJ d nB s qI UNKI d* bI Ub l VUM oLF _ X% w quJK W WUOB WOKL qON qUM l{ r UL WLJ UM)
WUM UU0 iF UNCF s WuBH uJ dR c UNU WOUMB QAM* q UNu YO s quJ pK bb9 d wd V d WIL uJ ULN WUF uA w dH UN _ w UNM oL w
w qJA wI qJA WOML UM) pK q WObF u jd0 quJ X
U* WOU' b' vK
WOd UM)U dF ULO Wd w dU UM quJ pK s r b c WOd UM) ?wK U U 5F cQ UO*U bLF* W qu sLC WMOF d sL{
d* quJ b vK U_U bLF d nB s qI oLF wd bM dH c w UNF{ V YO UdO dD l UU lUI Ud l w Ubb9
WUM WOJO WObF VOU q WU( 5 WUM UU d UNu qUJ bb9 r s bM) WO{ w qd s WI l{
pc ub WU( XU quJUbb9 UM WDO UdF qJ vK bbL U b vK qUJK VUM U dOu
VUM pL qd s d WID quJ WODG U qB U UbB s UNUL( qd WI u wML uD s WI l{
uD WI u UdNJ dD Wdc% U WOK V dH jd WU Wdc% U l{ VKD 5( WOMF* UDK b WEH quJ bb9 U* wd jD qL
UNDG{ UNu WLUM Wd dL
UNb r w uOM* sHKG* bb( s WuMB* wuB du (cable tarys) wuB UdAK UF WuM UJ U UFQ l qJA WOUMB dO WOUMB bbL w
WFUB
-
wK U0 dD s UdO s wuB od s bbL WId b eO UL sJ1d(U WOzUOLOJ quFU dQ b WOU UNO U_ W
se s b dO b* dLF WOuu* s WOU W UN w UD* UOHA* UMH w WU bbL w Wb* WU* w dO dOu ?
sU c w bbL w UdO s V WIdD c dLU UNO lu r s nOUJ w dOu dD s UdO l WUI bbL nOUJ w dOu
wKI* lu v WU( bM WU v WU( bM qd vK r w bbL w WU wbMN rOLB nOUJ w dOu ?
WFuK dE d U v wuB dOG du YO bbL w Wb* quJ lDI WU w WU U) u* w dOu
d qJA wuB w WuNdDU UdO l WUI uKD* qLF U$ bN' Xu w dOu
WUDK UDI b bbL VOU s UdOG WUI qbF tUOB nOUJ w dOu WUF wU* WOUMB QAM* q quJ qIM d qN_ q_ WIdD dF lL Ubb9 WId UL bu UJ* UF p wI qJA w qJA u tIKF qu od s UNO r sJ1 UNKI d* WHK* quJ qL% vK UNbI u UL tOU XO jd od s qJA w 5 u UL nI vK t
qJA w 5
nIU oOKF WIdD WOUMB UAM* w WuAJ* quJ qI wu qJA
-
b' vK t wuB qJA
uJ YO WuN qU dOu uI bb s lMB b w wuB pK UJ iF UM s VUJ* UUI w UF* UO{_ uI u WOH WOUMB sU_ w WuAJ
UNu WuIM* quJ j qON ladder trays vL rKp
PVC buK qOM wu U s tuMB* dOu* b PVC U s tuMB* dOu* dOu* c U9 YO dbM UJ w VKB bb( s tuMB* dOu* UJ q be qJA
wK U0 VKB dOuL bBK dF
UNKOu UNFD UNOM UNF qUF qN UNKI qN U2 UN WH U9
UuL UNHKJ WK wzUdNJ UOK WU U
WHK UJ UQ du
-
Current Carrying Capacity qOJKK WdO WF bb% wU b UM qUJK WdO WFU WOFOD dO WOFOD dE w UO qL vK qUJ b dF juK Wd( WUI* G eF u* w WUD uI V tO bu* d( bb d{ WId qLF* qOJ u uIM* bN' bI vK tK p bLF Wd U u qOJU jO; tM q _ w uLD qOJ dI* UO u uJ YO _ w uLD uN w bb9 w UF qL(U b d( S uN w b2 qOJ U S U qJA uN w b d UbM bLF qL( od s _ w b tO bu* d( U _ w ub* qOJ U jO; uN
UNUuJ Wd WFO vK bb Wd
UNM bbL w Wb* quJ u* u bb dUF b U bu uN w dU b1 UM u q qUJ b1 sJLO bbL WId VOd UJ
UO* w b1 w ub PVC w w w u s U t qu qLF bI quLK wU) jO; d W UL Wu W v qL XLPE u s U t qu Wu W v qL
UIU d bI UU s b UOK UNKL% bI b U2 quJ uLK WdO WF
UNO bN' bI UL WOKJ WF W qL( WcG b w quJ u b b% w WOzUdNJ WJA u
w U u qUJ U U d u W WLWOb tOK; fOUI* l w tOzUdNJ UOd w tF* UHu*
b wDF quJK WFUB UdA S qOJK WOKOGA WF WOFOD dE dE _ w b2 qOJ Wu W wWOUOI dE V UNUJ WUO WF UNO b%(VDE/BSI/ WOJd WOUDd WOU* WO*UF WOUOI UHu* b% uN w b2 qOJ Wu t
UNKOGA d Ubb9 d quJ pK WdO tF IEC)
WOU UKD* U r 5F qL( WUM* u* lDI WU UOquJK WUO WF s G
WOUMB bbLK wu WOeM* bbLK [ w t uL* bN' u bF b pc UHUC b% IscdBI UO qUJ qL%
-
WKd* c w VUD b bF qOJ lDI WU UO vK dOQ dBI UO UU dE UNO dD r sK
cG c UO u bb% bF p IL qL( UO WdF s U qOJ tUO WF s WdF r
WId uD WO uD WU qUJ c UNO b w dzb u d dL UO qL( bbL
qL( UO U( WOU WUF* b U qL uD U UO dL UO u U S
I = P
V (2-1)
WOU WUF* b uD U d qL( UO U U
I = PV cos
(2-2)
WO WUF* b uD w d qL( UO U
I = P 3 V cos
(2-3)
YOqL( s Wu* bI P
WO UL j) UO uD WU UL uD UO q9 ILqL( w U* UO b I
uD uD WO UL j) bN Xu 220 uD WU UL uD bN q9 bN' V
Xu 380bI qUF Cos
w tub* dO bbL WIdD t uL Iz UO d_ UF u* lDI WU WdF sJ1
b' s Wu W bM
WU bu w UI b' bU WIKF* UU( v dD rO
-
q Wu W d W bM w Wub* dO quJK t uLIz UO d b'
q 30C d W w w Wub* dO u* dLK t uL Iz UO WLO d
lDI* WUmm2
WU WuL* WOU WuL* v WuL*Cu
A
Al
A
Cu
A
Al
A
Cu
A
Al
A
0.75
1
1.5
15
19
24
-
-
-
12
15
18
-
-
-
-
11
15
-
-
-
2.5
4
6
32
42
54
26
33
42
26
34
44
20
27
35
20
25
33
15
20
26
10
16
25
73
98
129
57
77
103
61
82
108
48
64
85
45
61
83
36
48
65
35
50
70
158
198
245
124
155
193
135
168
207
105
132
163
103
132
165
81
103
-
95
120
150
292
344
391
230
268
310
250
292
335
197
230
263
197
235
-
-
-
-
185
240
300
448
528
608
353
414
479
382
453
504
301
357
409
-
-
-
-
-
-
400
500
726
830
569
649
-
-
-
-
-
-
-
-
wK UL w Wu t d W bM u* bb9 WId 5 tuL* YOuM dOu q b2 u b qu s U v_ tuL*
PVC U q uKI bF U qO WOU tuL* 5KU 5 WU* YO XLPE eF uN w b2 VKI WU u WU tuL*
ULb dD s qI sU WE
uOM* s uMB qu ALUM s uMB qu CU
-
quJ vK dBI UO dOU vK wU qJA bLF tFDI WU bb% wUUU qOJ WUO WF bb% w r_ qUF b wIscdB UO b WO qOJ UNNu w WOFO dOG dE qL% vK qOJ p b dN Wd UN tKL U2 wFOD qL( UO nF{ w dBI UO qB b YO WOzUdNJ u* U pc WO UNM b w Wd( UN eF U qL YO b dO WOJOUJO v R b w U* u* 5 dUM c' u WO WOJOUJOdNJ UN qL
WUL qzU VKD U2 lA* wu qOJ q b dO VKI bF qOJ U WU qOJ UH
u b vK qL( qUJ s qJ WUM WU dH dBI UO qL% vK qOJ bI vK UM r qOJ lDI WU* wzUNM UO U tOMU d s WUL( rE UO v tb WE( cM UO c UNO b w wu fL s be
qL( s UOzUN UO c qBH lu dNBquJ w bN' u UU
s bQ UbF V t WUO WF bb% WcG d* qLK VUM* qOJ lDI WU UO bFUO vK dR qL( bB* 5 U WU qBH YO t uL* bN' u oI% U* lDI* WU
vK bN' w u vL U v R bB* qL( 5 U qBH w WU* U UIU pF d UL WU UU w tUL sJ1 w WUI* U WObN' w bI v R U2 qL( d
v UM* UO dz w bN' u UU rI qUJ lDI
uD WU dzb w bN' u U uD WU dzb w bN' u U( WO WUF* qLF YO
V(%) = 2 x I x x L x cos A x V
x 100% (2-4)
b' w WOU d_ lDI* WU qOJ UO r 2.5 % s d bN' uN Wu* WM XU S
quLK WOuM WUI* YO
ld rK qu* lDI WU A bI qUF Cos
uD UO I uD bN V
d*U qu* u L
-
uD WO dzb w bN' u U
u_ WO dzb WU w bN' w uN bI U( WO WUF* b
V(%) = 1.73 x I x x L x cos A x V
x 100% (2-5)
quLK WOuM WUI* YOj) UO I
j) bN V ld rK qu* lDI WU A
d*U qu* u L bI qUF Cos
U qL( 5 WU* XU U 6KW Wb Xu 220 bN vK qLF U wzUdN qL WUI* rKF l WUM* u* lDI WU w UL d 20 UU UU bB*
0.0178 UMK WOuMq(
IL qL( UO U( 2-1 r WUF* oOD
IL =
PV
= 6000220
= 27.1 A
6mm 2 w VUM* qOJ lDI WU uJ b' s2-4 WUF* oOD r t uL* bN' w uN d s oIK
V(%) = 2 x 27.2 x 0.0178 x 20 x 1220 x 6
x 100% = 1.46%
2.5% s q w qzU UO vI v WKdL ou UO u 6mm 2 lDI* WU qOJ UO S pc
UI WU bu w t rO U u UL WUM* WUL(
R bB* qL( 5 WU* X bN' w uN W V oU U* w
ZzUM qK d
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dOJ PAM* lUB* w WOzUdNJ WUD lu WLE YU b bd b eN_ UL U{ bu WU) pK WOzUdNJ UL_ b WOKL
UO WOU b v U% dOJ PAM* lUB* w UdO WOzUdNJ bUB* nOJ
iU u_ w wzUdN lu u vK u qI WcG bB0 UAM* pK be r pc WOKI UFu U dEM c_ l UL_ pK uL vK UM WOzUdNJ tF bb% r bNK WFzUA u_ WO lu u; dI* bI UM d db' s UIU d UL UAM* w
KVA w b
w uLG lUB* q UNFDI WU bb% bF WcG WU) UJ bb9 r U U c UJ* U&U WOOzd lu Uu s oKDM YO WObF WOJO dOu qb _ c qOGA d WOJOUJO* UbB qL WK UJ uJ U U qL( W tO bu u_ WO bI U0 WU) uI Uu s lMB* US tU) U{ Uu qB r
bF* U WU) pK
UN WU) WUu eN_ WU{U WOdH WOOzd lu UuK WU) UHu* bb% rOWOUMB bbL w WOL s UN U* WUbu w UI pc rJ UOI eN
uO eO0 UNM q lL PAM* pK q WOzUdNJ WUD b lu WLE b UM WOU WOuu0 UL wzUdNJ UO UB dL d{ w dA V UFOL UN WHK WHKJ s qKI d WuN UD_ s nAJ w bU WIdD UL_ pK VUM WOKOGA uN
UJ b
5L v PAMLK WOzUdNJ WUD lu WLE rI b WFHd* ouD wU* w lu c b YO WOzUdNJ WUDK wd lu Uu U&U wOzd WcG bB s oKDM d bUw cG b r YO
UOKF ouD w tOzUdNJ UL lu uJ wI_ lu UE v wd WcG UE s UI WOzUdNJ WUDK wI_ lu
oU qJ WU) lu Uu d oU q w UL_ WcG
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dOJ PAMLK WOzUdNJ WUDK wd lu WIdD c qLA
b bUB lu UE Vd UbM qLF UEM c bU WOzUdNJ UL_ b WOHO qJA 5 YO lu Wu WU dGB UEM c U1 tLO WU dzU qL( s wzUdNJ UO UDI s
wN tuO U Wb*UNKLQ QAM* s wzUdNJ UO lDIM bUB j) w qD b bM
VOd w WOU WHKJ dO bUB lDI WU bB* WOU s WOU WOuu v U% w WOUMB sU w Wb sJ1
UL_ WcG UuLL lu UE
U1 UEM c bU WOzUdNJ UL_ b WId qJA 5dOG lDI WU UN u* U W_ cOHM WuN
jI UNcG w UL_ s WuL s UO lDIM WOOzd UcG* b w qD b bM cJ d cG* od s bB*U WKB UL d_ WuL* vI
dO lu Wu v U t tuO U
UL dH* lu UE ?
wK U0 U1 UEM c bU WOzUdNJ UL_ b WId qJA 5tu lDI WU dG
cOHM w WuN jI t cG* b s UO qBHM UcG* b w qD b bM
wN tuO UdO lu Wu v U
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cOHM WuN WHKJ UH
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UApb w b WIU WLE_ s
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u* lDI WU uIM* bN' bI Wb* u* b
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cR w U r U{u WOzUdNJ UJ WUM w qu* u UO r nO 5 UO bM
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WOzUdNJ WUL( U _ bwK U0 UOI od s WHK* WOzUdNJ eON WUL v U qJA WOzUdNJ WUL( eN bN
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b s rOK dOG e' qB od s qDF b UJ bb% UEU qLF qD WO b r c e' vK UI
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Fuses UNuQ dNB*
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Circuit-Breakers (CB) WHK* UNuQ b lu Earth Leakage Circuit Breakers (ELCB) w{ d UO lu
WOzUdNJ `OUH* Relays d*
Current - Transformer (C.T) UO u Voltage - Transformer (V.T) bN' u
Lighting - Arrestors ouB UFU
UM U qJA WHK* WOzUdNJ bK rJ eN eF WUL( qzU UO r YO UL WOzUdNJ bI WODuH dI vK
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wzUu oOM s W vK oIO p WMJ2 dzU qQ qDF e U*U bb s Wb) v uF
(Fuses) dNB* wKD pK U bF s uMB jd pK s U FUSE dNB* Q UIU XdF
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UNM iF dc U U s UN U* U_ c dJ b bF r qbK tKUI dNB*
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A
Al
A
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A
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A
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A
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A0.75 10 -- 6 -- -- --
1 10 -- 10 -- 6 --1.5 20 -- 10 -- 10 --2.5 25 20 20 16 16 104 35 25 25 20 20 166 50 35 35 25 25 20
10 63 50 50 35 35 2516 80 63 63 50 50 3525 100 80 80 63 63 5035 125 100 100 80 80 6350 160 125 125 100 100 8070 200 160 160 125 125 --95 250 200 200 160 160 --
120 315 250 250 200 200 --150 315 315 250 200 -- --185 400 315 315 250 -- --240 400 400 400 315 -- --300 500 400 400 315 -- --400 630 500 -- -- -- --500 630 500 -- -- -- --
-
PE WUu u lDI WU UO
t lDI WU Wb WUu u lDI WU dF b'
150 120 90 70 50 35 25 16 10 6 4 2.5 1.5 1 0.75 0.5 t lDI WU
70 70 50 35 25 16 16 16 10 6 4 2.5 1.5 1 0.75 0.5 qu lDI WUmm2 eF* WUu
l????uI wU b
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nKK dF UO dI s vK
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Switching Device wzUdNJ UH*U WU( c w vL Ub b t qOGA d w WOzUdNJ b s wzUdNJ UO Ud q qBH uI c lUI lUIU WU( c w vL UO qD b WU w WU dOG dE w Ub WUF
Circuit-Breaker w
WOU qzUu bS UO WOzUdNJ b ` rThermal Release d( U od s
Magnetic Action wOUMG qF od s UF wOUMG* qFH d( U od s
WOJObO qzU od s WOzu qzU od s
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WO luI u
Miniature Circuit-Breakers(MCB's) dGB* b lu b qB WUF qOGA d w Ub WOzUdNJ b qB qu uI UN s U w bz qL dB b WO nK s WOzUdNJ UL_ WUL( b QD) U w UO
UD_ s p dO
dGB* b lu eO2UF 5M wOUMG dOU d( U od s qLF
QD) U W bF Ub UNKOu U sJ1 dB QD b WU w WU Wd
b qB bM bu* wzUdNJ uI UL d vK u% UNOd WuN UNUL UNQHJ eOL
qJ
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luI cN Uu/
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VOCI Uu/ dF qJA DIN rail UO
qJ
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dGB lUI wKb VOd 5 qJA wK UL b VD
b qB qu b WOJO WF WU v??? U???? b p??c?? U??b?? w ON qOu WU w?? u?? q?? lUI
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b w U* UO q UN s qu w d_ UD_
lUI l b d bM wU s d qJA 5DdA b bL YO b lDI b bF* wzUM jd
bz qL UOlOL WOKL bF Wb qBHUO WLO bb lUI lMB q s b dUF wd
wOUMFdN qd wzUdNJ uI bUrI
dGB* luIK dI* rOI
qOFH WMOF d W bM lUI d1 c UOK WLO vB u In 4I* UO 40C U d W bM In=100A u U lUI 4I* UO U L tMO lUI
cJ 92A v 4I* UO WLO qI 50C d W bM t lu UMU b dOB d lUI qOFH uI c dBI UO WLO q u Im wEK qBH UO UO WLO UF{ dA v s UO c WLO d wu v WOU [ s d qd* _ wOUMF* qBH UO UUO tOK oKD lUI hzUB vK tLO bLF 4I*
U qBH cK u lUI q wOUMFdNJ U s ZM U UO c d( qBH UO UUO tOK oKD Irth Ir bOKI qBH UO q e* wbF* jdA bL9 5 v R U2 WU s q UO WKu dH qL( UO
(Ir =1.45 x In) nB d0 UdI 4I* UO s d u U qB wUU lUI
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Icu ed nKK dF tKB lUIK sJ1 UOK WLO vB u Icn Icu dBI UO WF WOeM* luIK bO Icn ed U WOUMB luIK b
wFOD l{u w lUI tOK qLF c wzUdNJ bN' WLO w Ue dI* bN' UU uJ V teF lUI lOD w wzUdNJ bNK WLO vK u Ui eF bN
Ue = Ui dI* bN' s d
qJA w dNE UL tOK WuJ UbN& w dGB* lUIK WOz WOMH hzUB) b'Specification: IS 8828: 1996, IEC 898 UHu*
Current Rating: 0.5 A to 63 A UO dINumber of Poles SP, SPN, DP, TP, TPN, FP UD b
Tripping Characteristics B, C, D, G, K lDI hzUBRated Voltage 240 / 415 V dI* bN'
Rated Frequency 50 Hz dI* dShort Circuit Breaking Capacity: 10,000 A dBI UO WF
Electrical Endurance: 10,000 Operations wzUdNJ w{d dLFMechanical Endurance: 1,00,000 Operations wJOUJO* w{d dLF
Mounting:Snap fixing on 35mm DIN
channelXO
Mounting Position: Optional XO luProtection Clause IP- 20 WUL( W
Back up ProtectionNo Backup Protection necessary
upto a fault level of 10KAbU* WUL(
Housing: Glass fibre reinforced Polyester nOKG
Terminal:25mm2 Box type at Incoming
Block type at outgoingd_
V UO se hzUB lDI hzUB V luI rOI sJ1wK UL IEC UOI
dOQ dU qBH WOKL r luI s uM c w A W QD) WU w
qJ
w d??Q???? l??u??I?? s?? u??M?? c??? U??? U??D?? b???? b??M?? B W???? WOzUIU oKF d??_ p?? b WOM dH qBH WOKL
d lu l (discrimination)
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WOUO bu* q dBI UO s WCHM Uu ZM w UB* l uM c b WKuD b quJ WUL( UC b (Standby generators)
vK Im wEK qBH UO d UN dOU s sJ B uM hzUB fH UN C W WUF U( w b WUL( b
UO vK u% w b WUL( b C W s d wE( qB UO eOL D K W WOzUdNJ u; Ud; q UO WOU WOzb
G q d U
BCDK U s dGB* b luI WOMH UHu* r dF b'
b
wEK qBH UObOKI UOlUI uWOU b
D W10In
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WOzUdNJ b w U* UO WLO vK UL qUJ lDI WU pc tu lUI WF UO rUNM qJ VUM* lUI WF u* lDI WU `{u b' qL( u
b
(mm2) qu* lDI WU(A) lUIK 4I* UO2.515
420
630
1040
1650
Moulded Case Circuit Breakers (MCCB's) WuI* WO luI WId hzUB) YO s MCB's dGB* b lu s UNO l MCCB's WuI* luI tUA lu WLE w b 1000A v UN 4I* UO qB UOK WOU UF du v_ b qLF
bI WDu*
WuKI luI u/ qJA
WuI* luI eO2 r wK ULO nBM w c uJ YO Tripped OFF ON w U{ W t WOU) lUI
OFF ON wF{ 5 WU*eOOL qUA* WKUJ uK wDF
qL( WFO VUM dI* UO dUF dOOG WOUJ
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UN UO dUF b WOdH Legrand Wd w WM* u iF b'edDXP125DXP160DXP250DXP320DXP800
A d( UO dUF b90:125100:160160:250250:320630:800A wOUMF* UO dUF b12506000875:25001600:32004000:8000
(Auxiliary functions) bF WuM ULN _ UNF g WuU e qOu WU{ WOUJ qJA w `{u u UL
W&UM WUD b YO Roto-active Breaking WOK oKD qBH WOKL w bb UE b w `{u u UL U qBH lUI vK jG{ b w bu* wzUdNJ uI s
qJA
qJA qJA
(ELCBs) w{ d lU _ dU* UA fU uI w{_ UE l u 5d vK u UN s U u tK q bI uO U w{U* w Ub UN' c U _ v eN_ s t U d UO dH U od s qLF c Residual current device (RCD) wdH UO UN tOK oKD UN
ELCB l qU u UL w{ l dU qu uN t sU* UF* U( j) 5 UO
qLF w WHK WOMI bLF d u s UN t l RCD UN vK lzU QD qJA ELCB U oKD
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residual current circuit breakers (RCCB) Residual current device (RCD) wdH UO UN WO luI dNB* YO w{ dOG UO d WU w b qBH RCD UN b _ WOzUdNJ WbB s U_ WUL u tb vOzd V UOK dOGB rOI c bM qLF eN WObF* qUONK t bM tL w d U dO d{ V sJ1 30mA tLO d UO
uD w U RCD UN dF qJA WOUF w qK s wUF w WOzUdNJ
WObF WJ vK lu Uu q X U DIN rail UO VOC UNOK oKD
qJ U r w w{ d UO d dOU bmA d UOUO Ud bU r vK wuuO dOU
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f UJ w U d t bB* s ozU b UH V UdNJ bB s UBH VFB
fHM oO{ b jG{ wu lCUL l b jG{ lHd VKI UC UE b
U b bN' Wu u s qWu WbB uFAbN' Wu u s uf UI bM U uN l UL
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RCD qL WId VOd
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UO qB qu uI w U vK pc qJ
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INUF* qu* w ld UO WLO fH I
L U( qu* w U* UO WLO uJ wFOD l{u w
UO bu iF ULNCF UOGKO dx fUF U wOUMG U bu qu q S wUUtF{ vK qd* vI UO u q
UO s q `B RCD v ld UO S WOUF w QD WO UOK d uB WU w U qd* qOFH b uI c UO u w UOOUMF U bu I UO w dH tO qb d UO w dH WLO uJ V c qB v qL( s UO lD wUU U qB
30mA U U IN UNK 4I* d UO s
vK jGC WU w t YO lUI WO s bQK b wN lUI U b tMU U UO w d V U2 UO u U R WUI* d UF* v U( j) s dOG UO d1 T jUC `BM qOKI dI* d UO sd UO d0 `L YO WUI* UO r U qB wUU
tO s bUK d dN q lUIK hH qLF b* fH vK qLFO UD_ wUd lUI U
uJ wFOD l{u wH
I = IL1
+ IL2
+ IL3
+IN = 0
lUIK IN s d UOK d b WU w
b qB r tOK oKD d?????? l??u?? s?? d??? u??? U??M?? Residual Current Breaker with Overload (RCBO)
MCB vK u RCD UN s U u WuJ* WOMH UHu* `{u qJA
eMLO Wd lM s uD U RCD UN vK qJ
w{ d lUI WOMH UHu* dF b' Standards IS 12640, IEC 1008 $ BS EN 61008 fOUI
Reted current /n
25,40,63 A dI* UOReted tripping Current /
n30,100,300 mA dI* d UO
Number of poles 2 Pole,4 Pole UD bFrequency 50/ 60 Hz d
Rated Voltage Un
240/ 415 V ac dI* bN'Configuration 4 module qJA
-
Rated Short Circuit With=
stand capacity (/nc
)10,000 A dBI UO WLO vB
Resistance against unwanted
Tripping
8/20 sec 250A (VDE 0664.1)
0.5, sec 100 kHz 200A (EN 61008)
dO lDI b{ WUI*t ud*
Terminal Capacity 25 mm2 d UO
Operating temperature range -25 to +55 C w d( W b
UNOK qLFService Life 20,000 Operations w{d dLF
Mounting arrangement Snap fit on 35mm Din Channel XO WId wzUM RCD U??N?? U??F?? 5???? q??J??A??
WODI wU
qJ
Surge Arrestor bNK dUF Uu* b WO Surges bNK dUF Uu* b% d WOzUdNJ ouB q WOU U_ WOzUdNJ UH qOGA q WOK U eN_ nK v dUF Uu* c R b WOdJ eN_ WU bN' UH WU( pc uU( UHK eN WOD eN_ q pK WUL( dUF Uu* b b r s dUF uN' lM0 uI w WU( eN_
UNO uu dU Uu b dF qJA
WOzUdNJ ouB s W&U
Current transformer (C.T) UO u
VU u uHK eF pK s UO u uJ qJA w `{u u UL qJA dz wOUMF wzb nK* U uLK uU nK* pK c qJA
tO U* UO UO d* qu* s U uN qJ
-
wK UL WOKLF r YO U qu w U* UM* UO WLO UOI UO u b U qJA qu* w U* UM* UO
qu* p u UM wOUMG UO bOu v R UM* wOUMG* U* uLK uU nK* w UM wzUdN
Y( uU V qJUHK b W l VUM dOG uLK uU nK* w bu* UO WLO UO WLO UOI dO UO UO UN l uU nK* d qOu r
VFB L dO_ s U b WOU rO UO UO v WU( bM b WIdD c d b dO ULF sJ1 UO u b bM sJ dU 600A tLO UO UOI UN dOu
UO s WOUF WLOI c UOI 0-5A s qu* w 100A tLO UO d U w t wMF p U w UO u; dI* WLOI XU
WM wzb UO s q t uLK uU nK* w 5A tLO UO bu tU b uU wzb nK* n od s t dI* WOL WLOI dOOG sJ1 t UO u eO s
WOU WUF* V bb' qu W U sJ1 t YO u; W s d* s
u; cU d uU nK* UH b dI* qu Wu; cU d wzb nK* UH b WOKFH qu W
WN s nK U& uJ UbM U b qJA w 5 u UL u; cU d uLK H1 nK U& uJ UbM U b
u; cU d uLK H1 WN' WKUI* WN' s
qJ
UO W qu% WOKL dF U wK ULO WOU WM v dI*
UHK b W
UO W w{_ d lu WO luI q WHK* WUL( eN q UC UO u b
-
Switch and distribution borads lu Uu `OUH* Uu
UL_ uD bu iH) u 5 jdK lu `OUH* Uu s q b YO iF UNCF s WKBHM v WUD bB u UuK c q QAM* q WOzUdNJ dNB* luI X YO rJ WUL( dUM WDu b c s b q WUL rJ r U U* dOQ rJ eN U We) q DIN Rail Wbb pJ vK dUMF s UdO qJA w `{u u UL WeK wU_ tu vK X aWOd* UOI dR juC
qJ qJ
Switch boards `OUH Uu
5u v `OUH* Uu rI WOU_ WN' b U UN' lOL s WuH We) uJ YO uH* uM s `OUH Wu WOKL WuN wUU UNKb w dUMF v uu WOKL qN U2 WuK qOGA VU
jI uB* UNO qB w WIKG* sU_ w UuK c b WUOB d U du wN wUU UN' lOL s WIKG uJ YO oKG* uM s `OUH Wu WOHK u vK u% lUI b s U uJ WuH* sU_ w b U qJA WuK U luI V s sJ9 Wd eQ UUO e UL WOU
iHM bN `OUH Wu dF
-
qJ
wK U0 `OUH* Uu eOL4000A v UNF qB UC vK u%
VKB s u s lMB 2.2m UN UH vB
UN sJ1 Wd d WU lu vK u% 176KA v qB dB UO qL dUM vK u%
qJ IP54 v qB UN WUL( W qJA w dNE w bI qUF 5 Capacitor banks UHJ vK u% b
Distribution boards lu Uu
u W v lu Uu rIMain distribution boards WOOz lu Uu
Sub distribution boards WOd lu Uu Final distribution boards WOzUN lu Uu
lu Uu s WHK u dF qJA qJ
-
v wzUdNJ UO u WOOzd lu Wu Ub w WOdH lu Uu s d Wu lu Uu s d Wu v UO lu uI r UL_ v UO qu Ub w WOzUNM b2 U WDu U UuK 5 UB WOKL UJd WU U WOJO VOU q qJA pc UBOB bF WObF lu UC WOOz lu Wu `OUH Wu dF u% Wu q k 5Od lu wu k WuK UL lOL WUL( wOz lU vK dI* rOI S qH v vK s UMb ULK t
dGB luIK
qJ
wK U0 lu Uu eOL2000A v UNF qB UC vK u%
pO VKB s u s lMB 1m UN UH vB
WU lu vK u% 80KA v qB dB UO qL dUM vK u%
IP65 v qB UN WUL( W
q WU) ULF WOzUdNJ UuK s d u UMMotor control center (MCC) WOzUdNJ Ud;U rJ Uu
bd nOOJ eN Uu bUB* Uu
WOUMB UOKLF w rJ Uu
-
wzUdN qL( cG* qUJ lDI WU U
WOU uD) l qUJ lDI WU U(
qL( UO U P = VI Cos
I = P
V Cos = I
L
AL uOM* Cu U b* qu* u bb% uN w _ sU dOu q bbL u bb%
IN
IZ
ILLoad
ph
C.B
qJ
YO bN' u l dU W p w U* bB* s wzUdNJ qL( bF qu* u UIU td - UL s be
bbL WId V U* _ quJ b vMF0 lOL qU
WIU quF lOL v dOA WFUB UdA WUJ quJ lDI WU0 WU) b' lOL Q rKF lt WdO_ WF qUJ lDI WU b c UOK WOK UF* wU b' UL rO WKd* c w
Cu , XLPE , T = 30
qUJ lDI WUmm2
IN
(A)
IZ
(A)
1.51015
2.51620
42025
62533
103545
165061
256383
2580103
50100132
IZ I
N I
L WF UO - c qUJ lDI WU oI% V
uD) s tU r qL( UO IL
YOlUI dNB* UO I
N
qu* tKL UO d IZ
-
U Ub qOu tb Vu lUI WF qu* lDI WU V
2200W/220V b WOzUdN
q(
WOU WUF* s qL( UO U P = VI
L Cos
Cos = 1 U qL( U0 IL =
PV
L Cos
IL =
2200220 x 1
= 10A
wK U k b' v udU
mm2 A
1.5 10
2.5 16
WF vKQ qu* b u t 1.5 mm2 tFDI WU pK l oUD qL( UO Q k2.5 mm2 s uI bb9 w b* qUJ lDI WU qI u pc t WdO
b' w tOK qu* lDI WU UO r tOK2.5 mm2 16A
wK U k b' WFd qJA s IL = 10 A
IZ = 20 A
C.B = IN = 16 A
IZ I
N I
L
20 16
10
r uD) w WOU WUF* b rO u_ WO UL WU w UP = 3 V
L I
L Cos
IL =
P
3 VL Cos
-
U d 400V bI bN d vK qLF 0.8 bI qUF10KW tb w d Vu WUL( lU WF qu* lDI WU b dU qJA UdNJU tKOu
qL( w UO pc tbq(
P = 3 VL I
L Cos
IL =
P
3 VL Cos
IL =
10 x 10 3
3 x 400 x 0.8
= 10.000
553.6 = 18A
IN
IZ
IL
C.B
M
O.L
qJ22.5 A = 1.25 x I
L wzUdNJ qUJK U qU WU{ r
b' v udU ILINmm2
15101.5
20162.5
25204
33256
6mm2 WFDI WU qU UO rIN
= 25A
IZ = 33A
IO.L
= 1.2 x IL
= 1.2 x 18
= 21.6 A
-
iQ WLE YU b `D v WMU uLK wzUdNJ bN' WLO 5 iQ UE U wzUdNJ lu WLE w
WUD bB* WOOUMGdNJ Wu* W vK UHUC t iQ UE UO _ WK od s _U WOzUdNJ bF* eN WObF* uD q od s r iQ WOKL uJ WKu c sLC YO Protective Earth connection (PE) wu w{_ WK vL WObF b UL VM& wUU _ `D vK wzUdNJ bNK UU uD pK vK wzUdNJ bN' pc WOUF w qK WO wzUdN Vd tO UN h f WU w WOzU dN Wb eN qOFH v R U2 dB QD b U w Ud U dB UO d WKu c sLC
qL( s WUD bB qBH uI w b luI WUL( b w Functional Earth Connection WKUH w{_ WK vb w{_ WK s d u UM u iF qLF Wd{ WKu c qK b eN wFOD qLF wzUdN UO qL%
WHK* UOI eN UOzuN u iF Surge Suppressor q UNUL WOzUdNJ eN_WMOF u w WUM VKD c sJ qU w{Q PE wu w{_ b sJ1
WuL q eOd - UuL W v IEC 60364 w*UF UOI* V iQ WLE rOI - IT TN TT w 5d
5d( b uJ d( c u bu WUD bB l w{_ WK U 5 _ d(5OU
Terre WOdH WLKJ s WIA w w{_ l U WDIM dU qOu wMF TWOU WFU2 s UB Isolation e WDI s w{_ l UB bu t wMF I
b uJ qL( WUDU be r c wzUdNJ UN' l w{_ WK U 5 wU d(5OU 5d(
WUD lu WJ w w{ WK s eF0 w{_ l qLK dU qOu wMF TNetwork lu WJ s w{_ l uu qL( wMF N
TN UE l u; bu* w u w UEM w WLM WDI U UIM b qu UEM c w bBLK w{_ WK s _ l qu qL( wzUdNJ UNK wU) qJON U _ w UOU dOB UO d v R WOUF w qK b U wUU qJA w `{u u UL
qL( s UO qB wUU dNB* b lU qOFH v R U2 WOu WKu
-
vL bB* w{ l pKN* eN_ WuAJ* WObF* e_ qOu uI c qu* pK w ld UO qL c u_ w UEM WLM WDI l qB c pK PE WUu j
Neutral (N) UF j vL uD U UE
s b q lu w dOG WFU2 w{ WK UA WHKJ du TN UE U WUB WOU s 5JKN*
Earth qL(
bB*
L1L2L3NPE
qJ
w qJA w `{u u UL WOd WLE W TN UE X% bM ULNCF l B 5KBHM 5D s U N UF PE WUu j tO TN-S
qBHM Separate wMF S d( WUD bB bM iF
WUB WOU s PEN j tOK oKD b j w UFL UF WUu j tO TN-C u b r N bUF j UDI dD s qOKIK u* b qOKI wMF c U wMF C d( WJA s WHK UI w _ l bF qOu OJ s U
qB Connected
j w UFL UF WUu j YO 5IU 5UEM 5 lL uM c TN-C-S ? WUM qb bM ULNKB r WUM qb v WOdH WD; 5 WU* w U qB PEN UEM c dF UOUDd w UF j WUu j 5KI 5D v UL_ u% w tKOu r PEN j WOL V uF Protective multiple earthing (PME) rU UC UEM c b UF j w UDI b dD s nOHK WHK lu w _U
d{U( Xu w U w Wb( uO rEF w
-
Earth
L1L2L3NPE
Consumer
TN-C-S
Generator ortransformer
Earth
L1L2L3PEN
Consumer
TN-C
Generator ortransformer
Earth
L1L2L3NPE
Consumer
TN-S
Generator ortransformer
qJ
TT UE t WU w{ WK s _U quO qL( U dU _U bB* qu UEM c w
U w oD* u UEM c qJA w `{u u UL bB* s WeF WKI
IT UE WFU2 WK s _U qB _ s UOzUN WeF lu WJ uJ UEM c w
qJA w `{u u UL WKI iU WK s _U tKOu rO qL( U WOU WOD eN_ q sL WEU WU bF eN vK u% w sU_ w UEM c b b b dO WUB dzU v sU_ c w WOUF w qK b R YO d* d
U_ WUL( Ue wU{ e upKN* WN w U_ WUL( dOu RCD w{_ d lu b VKD IT TT UE
Earth qL(
bB*
L1L2L3NPE
Earth
qL(
bB*
L1L2L3N
PE
qJ qJ
-
bu WKwK ULO UdH
dUM b dNB* dF t dI* UO WLO ULK dNB* pK WU ULK
u WOzUdNJ UIFB s U_ WUL( hB* lUI ?dGB* luI s WUO dI UN WuI* luI
wOUMG* qBH UO s d( qBH UO uJ WO luI w ? WDu w lUI q bu* wzUdNJ uI UH UL r
tUO q s wzUdNJ UO WLO iOH b Uu v wzUdNJ UO lu uI `OUH* Wu
iQ wUE w wdH UO UN b wK UL V qJA v udU
UN' u dO dI* UO
dO wEK UO ?dO dBI UO WF
Xu dI* bN' ?dO wdH UO WLO UD b
TEST MONTHLY UF uBI* U
qJ
wK U d eOOL WOzUI
UO VOC WOzUdNJ WuK ?
s q V uD w UE vK qLF UB tb wzUdN d qOGA U WUL( lUI dI* UO WLO qOuK qUJ lDI WU qL( UO
WUM* qOGA WId `O{u U 5F c_ l
-
b???????????????????ur??J d?????zr??J d?????z
-
Control Circuits rJ dz WFd bu
Control Circuits WOJOUJOdNJ rJ UOU _ b
WbI bF WOdJ WOzUdN U w qb wzUdNJ rOEM rJ dz s WHK u bu UdO WUD v UO bu s d) bN WOzUdN bOu WD w bu* s d) bN rOEM dzb jGC nOOJ bd Wb U w qLF WOJOUJO WOzUdN rOEM rJ% eN bu UL
UdO wJOUJO qB UN s U w contactors WOOUMG* luIU vL U rJ dz w b lOD ju{ WDu bF s U/ bO WDu jI fO tKOGA r UOKL bF UOIK rLB wOUMG
WOFO dO WOFO d w UO lD qu rJ UM b VD uJ bI UD_ b U iF UNCF s WOOUMG* luI nK
cJ WF W s WeF UD_ c uJ Auxiliary Poles vL bU lD od s d UD WU{ r
WOJOUJO WIdD Xu fHM qLF WLLB iF UNCF
wOUMG* lUI qL b U bu tS nK w wzUdN UO d bM wOUMG* lUI U vK dR wOUMG dzb w UB tb iF UNCF l c iF UNCF l d UOK WLLB WOzUdNJ
qJA w UL UNMO ULO jd od s
UD W wOUMG lU qJ
UNCF s??? WKBHM U???D WO???Ozd U???* qB vK qLF w???Ozd lUI q uu iF
b w UO q
-
WOU{ UD s U bU* U* w UL WOOzd UD_ l WOJOUJO WIdD qu
qJAbU* U*
W??O??J??O??U??J??O?? W???F???D???l????? W????????K????????B????????????????WOOzd U*
l bU* UD WOJOUJO* WKu qJwOzd lUI
U bu nKLK wzUdNJ UO u bM vK qLF WOOzd UD_ c uI wOUMG v B WKu lbM wUU wzUdNJ UO UB w A WKu UNF V c' u qFH qH c WU b bU* UD_ l WKB Ub
UD_WOOUMG* luI vK WK
WHK UDQ WOOUMG lu qJ
qJA w UL wu vK UD_ qOu sJ1 UL
wu vK luI UD qOu qJ
-
qJA w UL qOGA UO Ue u vK UD_ qOu sJ1 pc
u vK UD qOu qJ
WU( V d bU UD WU{S wOzd lUI UNO rJ w UD_ b U sJ1 wzUdNJ UOK d lU WU{S p U* UO WLO bb% UNeK WOzUdNJ dzb iF UM pc
wzUdNJ UOK b rO dOG rOI rJ tMJ1 c Thermal Over Loads
WOU WOOzd rJ dz w wOUMG* lUI b rChange over Switch UH
Direct -on- Line dU qOu Star - Delta UU
Reversing b U& fJ Power factor Correction bI qUF 5%
Starting Circuits UdLK b dz Relays lu
dM* b; dBF* lMB* WU V WOOUMG* luIK bF* Ub s UdOqLFU b bM iF UNCF l UN UMU* qL WFO pc
WOOUMG* luI vK WuJ* UB U_ qJA w UL WOOzd UD_
-
WOOzd UD_ rOd qJ
v WOJOUJO WIdD UNKOu UNU{ sJ1 wOzd lUI l uJ b bU* UD_ qJA w UL wOzd lUI
bU* WOOzd UD_ rOd qJ
U l bU* WOOzd lUI U WU c vK qLF c Coil wOzd nK* nK* bN v
WLOI rJ vK qLF Thermal over load d( lUI w bB* qB vK qLF YO bB* l qB* qL( UO dzb w qK qD b V U* UO WLO U U w UL rJ WOKL w UNM UH r UD t WOzUdNJ
qJAdzb w UO lD s WR* WOOzd WKOu NC --- 95-96
dzb w qK b bM dc% W* qOu NO --- 97-98d( lUI UD qJ
-
Push Buttons UI qOGA ju{ NO 1 dC qOGA jU{ (1-2)NC 0 dL UI jU{ (3-4)
UI qOGA ju{ qJ
WE
vK uu wN UB U_ ud c lOL' WMU lUI qJ U pc WFUB WdA U luI lOL
UB U_ cN ULK UdNJ wM uJ V pc
rJ dz w Wb* ud
rJ dz w Wb* ud qJ
-
rJ dz w Wb* WO ud
rJ dz w Wb* WO ud qJ
r w WOMe UR* s bF u UM Timer XR* Ud s WuKD* WOMe dHK UF rJ dz w UNb w UU dz w tb r c XR* UuO wzUdNJ UO u bM quK dO WOM d v U% WDIM s UO qOu vK XR* qLF XR* nK v wC bF oKG 5DIM 5 qu VDI _ WDIM v u WDIM s wzUdNJ UO qB r uKD* Xu l{ v 5DIM 5 qu VDI WDIM s qOGA d WKO wzUdNJ UO d dL dU
qJA w UL
wM XR qJ
-
Overload WUL( WKO UO uOH UO WLO 5OF
WOOz qd s d9 WJA vK wzUdNJ d; j WOKL wOzd lUI WOOzd uOH
UU qOGAK b lU wOUMG* lUI Overload UO U b{ WUL( WKO ?
bI uU s UO U od s tu s U d; UO WdF V pc
bI qUF UO bN' bI
S t_ w UO WU w U
bI qUF j) UO j) bN bI
d; qOu WId WdF V pcdU qOu
Y od s qOu
U( iF w qUJ qL( UO UF{ U d; b UO uJ dU* qOu bM U dLK b UO S U U WIdD qOu bM U j) UO U WUL( WKO UO WU( c w WUL( WKO UO dUF r tu UO U WUL( WKO UO qUJ qL( UO UF{
WOU WUF* V
WKOu pK s U* UO 1.2 WUL( WKO UO
-
U wOzd lUI UO WLO UL UU WIdD tKOGA d 5kw uKO tb d
[ bI qUF 380V WJA bN rKF l WUL( WKO UOq(
W = 3 x VL x I
L x cos
IL = W
3 x VL x cos
IL = 5000
3 x 380 x 0.8
IL = 9.5A
Starting current b UO
= (2-3) x 9.5
Over load current WUL( WKO UO
IO.L
= 1.2 x Iph
Iph
= IL
3 = 9.5
3 = 5.5A
IO.L
= 1.2 x 5.5 = 6.5A
Circuit braker current pOUu nB UH UO
IN = 2 x 9.5 = 19A
IN = 3 x 20A
Cable cross section qUJ lDI WU b' s q(
5 2.5 mm2
-
WOzUdNJ Ud; qOGA rJ dz r wU b5dz rd dzb pK r bM
qJA w UL WUL( qzU WOOUMG* WOOzd luI qLA uI dz
pOUu nB UH
wOUMG lU
d qL w
t W d
(3 - Wire Diagram) uI dz qJ
-
w UL W d `OUH W WUL( qzU U U juC qLA rJ dz qJA
d( lUI UOver Load
UI jU{
qOGA jU{ qB bU fC1 wOUMG* lUI l
dC U W*qOGA
dL U W*dc% lUI nK
wOUMG*
nB UHpOUu
rJ dz qJ
-
WuK vK lDI XO UJ uI dz rJ dz 5 YO lOL jD lOL dz qJA w UL qu ULE _ sU U
WOzUdNJ UuK w lOL dz qJ
bu WK w WU{ l Stop UI UD Start qOGA UD bS wzUdN d qOGA d
rJ bI r d; tUL( Over Laod qL d qOGA XR* c b WU wM XR qOBH s wA _ e' U UM
rJ r UOu UU uI r U u_ b fJF p r u_ w w d U& fJF
rJ