P044-96 11000 Volt Metalclad Switchgear

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    26-Dec-2015

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WAPDA Specifition for 11kV Metalclad Switchgear. Specifition of Circuit Breakers, CT, PT for 11kV System

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  • 1. Incoming p a n e l tor conria~:t-ing t h e 1.1 k V s w i t c t \ b o a r d f.o L11c poc~or t r a n s f o r rnr3r .

    . . ( 3 . .BUS couulrsr p a n e l f o r c p n n a c t - i n 9 L'JCI l I I . ; V bus ~ e c t l o r l s i n grid s t a t i o n s where t i 1 ~ 9 por,Jcilr

    I I: t r a n s f o r m e r s a r e i n s t a l l o c i arid f ~ r g r i d s t a t i o n auw i l i a r y s u p p l y .

    4 . J .rlt lust~' lal r~nr.e!. fol* g i t ~ i n c j 11 k V s~~pp . l . ,+ t o i n d i v i d u a l cansitms!rs. ' ,

    5. - ~ i . i y ~ a i n pane*] for' g i v i n g 11 b\' :;upply t-o i n d i v i d u a l corrsrJmar s fed front two d i f fe rcn t f esdar s .

    6 . Consumer p o n s l s f o r n i v i n g sonncc:ioni: 1 K V s u p p l y t o a n ind i . \ / idc~a l consumer f r o m Lhr? g r i d s t a t i o n s

    I i .hrol.~sh a n express oSr declicn?.cc.J 1 1 t.;V i ceder .

    4 -2.2 Swi tchtoal-ds s h a l l t a asssmbl.ed w i t h i n c l i v i ~ : J ~ ~ o l pane 1s and may be o f t h e f o l l o w i n g conf i a u r a t i o n s . The g s n c r a l l a y o t r t s i l a l l b e o s sl~ocrn i n d r a w i n g N o . FDIJ,/TE.-582,

    I

    i , The swi tchbo.?rtJ may compr i s e o f csne i ncon~i 119 p a r ~ e l and a numbnr oC o u t g o i ng/consrrn.cr pane I s . 71.13 iqcoming panel. s h a l l bs a t c)r~e er!d r3f t . 11~ ! % b ~ i t c h

    bonrcl .

    i i . 'The swi t c l ~ b o a r d may consist u f LISJO i nc:ornj ng I p a n e l s , o n e bus c o u p l e r na l r s l a n d numlj~r. o f I . . cu tgo ing /consumer p s n e l s . The i nzoming end t.he b u s

    couplei- panels s h a l l bo a d j s c e n t t o each u t h e ~ - bti th the bus c:oupler i n t h e c e n t r e . The ou tgu ing /consumer p a r t e l s s h a 11 be or1 1 3 i t l ~ e i s i d e of t he i ncowi ng p a n e l s .

    4 . 2 . 3 The i n d u s t r i a l , consumer' and r i n g main pan l s l s s h . s l l * b e proviclecl w i t h s e a l a b l o end l o c k e b l ~ n t e t e r i n g cornpar t - rnent as d e t a i l e d i n clause 8.1 .;', ? . I .2 a r d 10.5. . .

    4 :3 ~ n t e r zhangkebi 1 i t v -----..-----.---.--,..-.

    4 . 3 . 1 A l l r emovab le cemponents o f t h e salne t . m e a ~ c l r a t i n g i n a g i v e n a s s e m b l y s h a l l be physic .a l l ~ and ol ectu i c a l ly

    . i n t e r c h a n g e a b l e . I

    4 . 3 . 2 A 1 1 rerno\!a6le ccmc,ortentc. { i n c l i i ( l i n ~ c i r c ; ~ j ? . breaks:- t r o l l e y ) ~1it.11 Jifftere!ltr. t :~pes oqd r a t i n y s rjha! i n o t h a i 1 1 t e i . c I ~ a n g e a 5 I e .

    AdministratorHighlight

  • main overcurrertll a n d c a r t - h f a u l t r c l r y . P o r , h c h.>cl: up '\. l ~ ~ o t ~ c t i ~ n t-11s I:i i f > coi 1s sha l 1 be ertergir;or_l dj.l-.?ctlr . ,

    from the C T a i d i t.l~out r e c t c ~ i r i n s ar1y c,:ler ncl :sordrce. 4 . 5 . 2 . D i f f e i ' en t l a 1 Pro t ec t i on

    i . \ --.--.-.--.*-.-.--..--.-.--.------- ! ,

    I I: 4 1 5 . 2 . 1 ~ 1 1 incoming pane l s s h a l l be provided t h roe add!.tional C T s ''or d i f f e r e n t i a l protoct ior r .

    4.5.2.2 lie i l i f f o r e n t i a l i~rotec:Lion zone of, powo; t rahaformors is ro sc~ i r ed t o ':.rip tllf? 11 kV inr:orning b r e a k e r s . For . t h i s pur-pose t h s incorning pane l s of: 1 2 . 5 K A r a t i n g s h a l l b~+provicIed , wi t-h an addil- ional DC operatacl t r i p c o i l .

    . .

    4 . 5 . 3 DC Gr-ipply. and T r i p I n d i c a t i o n s ---. -------.-..-.---.--- --a*-.------

    ,

    1 4 . 5 . 3 . 1 Supoyvision r'elay s h a l l be provi3ed Tar c:ontinuously -. I monitoring the heal ti)./ condition:; ~f br.c!akcr t.1-ip c i r c u i t a n d pr9senca o f DC supply on a l l a p p l i c a b l e pane l s . The presence o f h e a l t h y t r i p c i r c u i t shall b o I. in t l ics ted by llse cont inuous glow Q f a r o l l o w i.amp. The i nd i ca t i ng Lar~tv\s s l ~ a l ] . be o f nac.11 t y p e i-tiC.h screwed , t ! base. Tho rat. i ny sl-ta 1.1 be 5 watt . n t I 5 O V or 26OV DC clependiny on t ont1.01 onr! a u x i 1 j iiry st.tpply vol t a g s .

    4 - 5 -3.2 Ortg hooter a11. I i t s acknoolec-lge snd can*.;ell iny a r r a n g e - I mc)rlt; s h a l l I,.! ins t -a l led in t h e incoming p a n e l !:.o i n - I I 1 . dicaLti f a i l*.tr of OC mains s t ~ p ~ l y , .DC s u ~ p 1 . y to. any panel, and f;.i Illre of h e a l t l ~ y t,l.ir* cii-cirit., i t r~d I-iWYpping o f any breitl:*:.r . T h i s arrangc?merit sl~oulcl bo s e l f con- t a ined ant! .:l?curely f i x c z d , t o the pane l . The alarm

    / ~ a n c e l l i r l r ~ e r rangem5nt s h a l l b.2 f l trsh &ounte:d on t ho f r o n t of, t I t , . pane l .

    4.5.3.3 For c i r c u i t b r e a k e r * f i t t s d t r i t h hC ~ e r i e s t r i ~ ) rnochen- , .ism, a u x i l i a r y c o n t a c t s s h a l l be provided i n t h e p ro t cc t i vc r e l a y f o r opetat-ion o f a hooter, i n s t a l l e d i n tl?e i n r r rning penel , t o l d l c a ' r ~ b r ~ a k e r L I - i p . The con tac t s l ~ r t 1 1 be s l ~ i t a b l e fo r o?ai at-i o n o f L t ~ e hooter specif ier1 i n clat.rss 4 . 5 . 3 . 2 and 1-ntcd a s per c lnuao 15 .2 .2 .

    4 .!j . 4 I-leter i n g -- .- .. - .- - ---

    ' . . . 4 . 5 . 4 . 1 Arr angerne;tt.s f u r meter i r-19 sh.311 t ~ s r:~rovidad a s shown i n drabriqg PI. . . PDW/TC---sf30 ?. 581.. The vc:)itnge c o i l s o f a l l enorgy r n s t 9 r s of f i l ~e ovl.q~oing p a w l s s h a l l tte ,connectad to t h e vr.1 l t. ass t r a n s f o r tnsr of the corl-os.ponding bus

    I s e c t i o n . i

    ck.5 . 4 .2 For s w i t . , I . I - , ~ a r r j ~ 14itLJ-1 IIUI.; cou!>ler , k h e v o l kage t r a n s - I for-mei. of ~ a c l l ~ I J S s~st.t.ic>n !;h.311 be opera ted cindcpen--

    AdministratorHighlight

  • Tire s r ~ r i l c t ~ g c a i - , a1 1 spr73r-al-us a13c.l c o r i ~ i c c t i o n s s h a l l . b e s o s i ~ p p o i t s c l arltl r>roc~or. t ioned a.s I:o I3e c a p a b l e o f s a f e l y wil:lisLandi I ~ O s t - r e o s o s L o which Lhey may be t l ~ b j e c t e d cllll. i ng se i .v ico i n c l u d i na t h o s e clue t o sl-mr+- c i l - c u i l o f 'i2.5 K A or- 25 Ks as r e q u i r e d and under t h e c 1 i t n a t . i ~ c o r i d i t l o n s specified h e r e i n .

    Eaclr porrcl s l ~ o l 1 \.PC (I t - : ; i : r r ~ r ? ( l 1.0 r:ai-vy nircl \.I i th:;tal-td tliel-mo I nrrd niochnn ical st. l . ? s s c s c a u s e d by t h e f o l loi*ri ni l 1-ated . c u r l - e n t s :

    i . Ratcc! norlnal c u r r e n t ( f o r main-c:ivc:uits)

    1 2 . 5 K A 2 5 KA pane l p a n e l .----- .------

    . i i . I?ated s h o r t - t i m e t 1 S e c ) r~itiisL.arid c.u:'venl ( f o r 1 2 . 5 K A 2 5 K h rnairl and sa i - \ .h iny

    I cJ r c t ~ i ts ) i i i . Rat o d !)ea k 1.1 i t-hs t e nt:l

    c u r r e n t . ( f a r main aric 32 K A 53 K A car. t . l ~ i r ~ g c i 1 . c u i t s j I

    4 . 5 P r o t e s t j o ~ and M e t e r i n g ----.-.--- -...-.--. -.-- ---.----

    4 . 5 . 1 fYverc.l.lr r e n l : PT clLsct i o n I 5 . 1 1 41 1 PAIIE!~!; s h a l l IIevs ovcr.c~tr-r e n t : arid e e r t l ~ f a u l t

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  • - - 11 .5 . # I . L? I n C,CI~I:. of i ~rc.lurjCi i a l , S . . , < ~ I I : ~ L I I ~ I C I . ~ I V I C I I i I-IV I I I L ~ ~ r t r .>c tv le l s , i rldr!r)tr~iclc: 11t. :I!: , 1 I. nus t r-,a 11.; f ~ ~ . t i ~ ~ ? l ' . : z j l . ~ i l L 1 b o ~ 1 - o v ided Fo I. ..... met-or illy c t f e~~c- . r .yy. , 1.loi.c.11\.,1:1. , ? t - * . ~ ~ ~ o l - c i - i r i g trquipmont i n ... ") 1. h:r.sa.. p.n nc 1 s :;lla 1 l 1 . t ~ I I . i I I- a , 1 1 3 ~ ka13 1 e

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    a a1.1c.I s f . : ~ j . ~ L . ~ l c (:?r(~par.~;lnt:.~\~ , .:rq:. ::.r:r 11 l . n 1 j . = 0 9 . I - 2 , 9. 1 . ~ 3 a n d 1 Q . 1 .l.

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    . . i . . R a t e d 1 i , i l l rLr l i~~y i r n ! ? l . ~ l r;c- vli::.Irstnlicl v o l t a g e . '35 k'v' , . i i ' . RFILCCI F I O I ~ J ~ ~ ~ . ~ I . ( ? ~ . I I J ~ I ~ . : ' t~i1:.I\::::.tai7cI ~..1r51t~cj0

    31:. k\/ ! I ( r - n\ , ::. ) Tii;3 I I ; ~ I I ~ I ~ ~ I I ~ I t : l . ~ c ~ . ~ ~ ; . ~ v i ~ c i 1 . 1 J ~ I . !:lr.;\l I. I:OC ;IS 1.1rlder.i ' d l .4 . 2

    4 .:\ , T l i ~ i ~ i s t r l o t.ion. ~ l ~ e e t s , . co\ /e i -s a n d s l o u \ / q s s h a l l be rnzc!e x:f niclt.ei.j.cl1 I-la'..:j.ng gooc{ C i i . 4 resistant 131-opsi-ties.

    . . . .P\atc l ia1.s l,.isi:~J.e Lr.8 ~:atc:li f i i . c . . s ) i a l l n o t be ust.cl :I: c o n s t r u c t i q n o f . t h e p a n e l s . I11 t h i s regard, p a . \ - t i c u l a r care sht1.11 be t a k e n i n s e l e c t i n g . t h e appr-opr i n t e : i \ l y i ~ l n t j . n r : ~ r r ~ o t ~ ~ ~ ~ - i a l s .ft31- 1;13i-'i-i.zi.s, I : : c v c ~ - ~ and s l s e v c s (?LC:. ~c1i.i.c.h :;l:lall e s s c r ~ l : i d l l , . l i a i r c l i on . -hyy rosco f ; i c , . n r I . I , i n - Y a . i r a n d novr-- i rrf l n~nlnab le p ~ o p - e l - L i e s Sum: l i a s r . s i n f o r c c c l f'ibcr g l a s s ,

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    4.9.3 Handles and l e v e r s r ~ i t l r an e s s e n t i a l 1;. s t r n i ght I l . n e mclvemsr~t s h a l l move upc~ards or t o Lhe righl. ( i n c i ~ s a of h a n d l e s moving v e r t i c a l l y o r hor i z o n t s l l r I - e spec t j . ve ly ) f o r a c: losing operat . ion and s h a l l move i n t he o ~ ~ o s i t e dj