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RECLOSERS NOVA 15i, NOVA 27i, NOVA 38i 3 pha, iu khin vi x l Hng
dn lp t v vn hnh
Ni dung Thng tin an ton
........................................2
nh ngha trng hp nguy him...........2 Hng dn an
ton...................................2
Thng tin sn phm .....................................3 Gii thiu
.................................................3 c cm nang
trc.................................3 Thng tin b sung
....................................3 Tip Nhn v kim tra ban
u................3 Xp d v lu kho
...................................3 Cc tiu chun
.........................................3 M t vn hnh
........................................3
nh mc v thng s k thut...................4 Kim tra nh mc trc khi
lp t........4
Kch thc ....................................................5
Giao din caNova i.....................................6
Giao ngun iu khin.............................6 Quy trnh lp t
........................................7
Di chuyn recloser ...................................7 Nng
recloser ...........................................7 Tho recloser
khi li in ....................7 Ni t recloser Nova i
............................8
Vn hnh .....................................................
12
Vn hnh in ....................................... 12 Hin th v tr
tip im OPEN/CLOSE.. 12
Thao tc bng so (m tay, ng in).... 12 Ty chn cm bin p
ni........................... 13 Lp t
..................................................... 13 Ci t t
From 6 .................................... 15 Ph kin
....................................................... 16
Cng tc ph ........................................... 16 u cc
................................................... 16 Gi treo
ct.............................................. 16 Gi lp chng
st..................................... 17 Gi lp
trm............................................. 18
Thng tin vn hnh ..................................... 19 Yu cu
vn hnh.................................... 19 Kim tra nh k
..................................... 19 Kim tra vn hnh
................................... 19 Th cao
p............................................... 20 Kim tra mun
Nova i........................... 21
X l s c.................................................... 21
Recloser khng ng............................... 21 Recloser khng ct
bng in ................. 21
Thng tin phc v
S280-43-1
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S280-43-1
2
AN TON CHO CUC SNG Sn phm ca Cooper Power Systems p ng hoc vt qu
tt c chun p dng cho ngnh cng nghip lin quan n an ton sn phm. Chng
ti ch ng nng cao an ton trong s dng v bo tr thng qua ti liu, chng
trnh hun luyn vi s c gng ca ton th nhn vin Cooper Power Systems t
khu thit k, sn xut, qung b sn phm v dch v.
Chng ti khuyn co mnh m ngi s dng lun phi tun theo quy trnh an
ton ti a phng v hng dn an ton khi lm vic gn thit b v ng dy cao th v
ng h s mnh - An ton cho cuc sng ca chng ti.
THNG TIN AN TON Cc hng dn trong cm nang ny khng nhm mc nh thay
th cho kha hun luyn v kinh nghim trong vn hnh thit b an ton, Ch
nhng k thut vin chuyn v thit b ny c lp t, vn hnh, bo dng. Nhng tiu
chun k thut vin phi t: Thng sut ton b hng dn ny. c cng nhn qua kha
hun luyn
thc hnh vn hnh an ton vi in p cao/h trong cng nghip.
c hun luyn v c cho php cp in, ngt in, ni t h thng in phn
phi.
c hun luyn cn thn trong s dng thit b bo v nh l qun o bo h, knh
bo h, mt n, m cng, gng tay, .
c v hiu chc chn tt c cnh bo v thn trng.
Hng dn an ton Di y l nhng trng hp cnh bo v thn trng ph bin c p
dng cho thit b ny. Nhng trng hp khc, lin quan n quy trnh v nhim v c
bit nm ri rc trong cm nang ny.
Cnh bo: Thit b truyn ti v phn phi in phi c la chn ph hp mc ch ng
dng. Thit b phi c lp t v bo dng bi nhn vin c hun luyn v am hiu quy
trnh an ton. Nhng hng dn ny c son tho cho nhng nhn vin nh vy v khng
dng thay th cho kha hun luyn v kinh nghim trong quy trnh an ton.
Khng la chn, lp t, bo tr thit b truyn ti v phn phi in ng c th dn n
t vong v gy tn thng cho ngi v h hi thit b.
Cnh bo: Thit b ny khng nhm mc ch bo v con ngi. Thc hin tt c quy
trnh an ton ti a phng khi lp t hay vn hnh thit b. Khng tun t c th
dn n t vong, gy tn thng cho ngi v h hi thit b.
Nguy him: in p nguy him: Tip xc vi in p cao c th dn n t vong hoc
tn thng nghim trng. Thc hin theo tt c quy trnh an ton ca a phng khi
lm vic gn ng dy v thit b cao v h p.
Cnh bo: Trc khi lp t, vn hnh, bo tr, hay kim tra thit b, c v hiu
r ni dung hng dn. Thao tc, iu khin, bo tr khng thch hp c th dn n t
vong, gy tn thng cho ngi v nguy hi thit b.
Hng dn s dng ny c 4 loi nh ngha v nguy him:
Nguy him: Biu th tnh hung nguy him s xy ra nu khng phng trnh s
dn n t vong hoc tn thng trm trng.
Cnh bo: Biu th tnh hung nguy him s xy ra nu khng phng trnh s dn
n t vong hoc tn thng trm trng.
Thn trng: Biu th tnh hung nguy him. Nu khng phng trnh s dn n tn
hi va v nh.
Thn trng: Biu th tnh hung nguy him, Nu khng phng trnh s dn n tn
hi cho thit b.
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S280-43-1
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THNG TIN SN PHM
Gii thiu Cm nang S280-43-1 hng dn lp t, vn hnh, hng dn bo tr
recloser Nova i 3 pha v t iu khin vi x l. Trc khi lp t v vn hnh
recloser ny, c v hiu r ni dung hng dn. Ch dn vn hnh c v hiu r ni
dung hng dn v tun th tt c quy trnh an ton ca a phng trc khi lp t v
vn hnh thit b. Recloser ny c s dng kt hp vi iu khin recloser ca hng
Cooper Power Systems. Tham kho cm nang S280-70-18 v lp t t iu khin
treo ct From 6. Thng tin b sung Nhng hng dn ny khng bao gm tt c cc
chi tit hay s thay i trong cc thit b, quy trnh, m t ch to v cng
khng cung cp ch dn cho mi bt thng c th xy ra trong qu trnh vn hnh,
lp t, bo tr. Cn thm thng tin, vui lng lin h i din Cooper Power
Systems. Tip nhn v kim tra ban u Mi recloser c lp rp, kim tra v thm
tra hon chnh ti nh my. Recloser trong iu kin tt khi c vn chuyn. Khi
nhn recloser, kim tra du hiu h hi ca thng vn chuyn. Tho thng ng
recloser v kim tra k hng hc xy ra trong qu trnh chuyn ch. Nu pht
hin hng hc ngay lp tc yu cu n v chuyn ch bi thng.
Tho d v lu kho Thn trng trong tho d v lu kho gim thiu s hng hc.
Tham kho phn nng v dch chuyn recloser. Nu recloser c lu kho trong
thi gian di trc khi lp t, khu vc lu kho phi sch s, kh ro. Cc tiu
chun Recloser Nova i c thit k v kim tra theo tiu chun: IEC
62271-111 2005 Chun IEEE C37.60-2003 Cc tiu chun cht lng H thng qun
l cht lng ISO 9001:2000 M t vn hnh Recloser Nova i 3 pha, bung ct
chn khng cho h thng in phn phi di 38 kV. Recloser Nova i c thit k v
kim tra tng thch vi t iu khin From 6 ca hng Cooper Power Systems. H
thng hp cht cch in rn khng s dng kh, cht lng, xp cch in. Recloser
Nova i c kh nng chu ng vi oxi, ozn, hi m, bi bn, tia cc tm cao.
Recloser NOVA I c 03 mun bung ct c trong cht rn, bin dng, v c cu
chp hnh t. Recloser ph hp cho vn hnh nhit t -400C n +650C.
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S280-43-1
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NH MC V THNG S K THUT
Kim tra nh mc trc khi ci t Recloser phi c ng dng trong phm vi nh
mc ca n. Kim tra nh mc nhn v so snh vi c im h thng ti ni p dng trc
khilp t. Bng 1,2,3,4 lit k nh mc v thng s k thut recloser Nova
i.
Bng 1:in p nh mc (kV)
M t 15 kV 27 kV 38 kV in p ln nht nh mc xung c bn (BIL) Gii hn
nhiu v tuyn (V) Mc cch in kh tn s cng nghip Mc cch in t tn s cng
nghip
15.5 kV 110,0 kV
100@ 9.4 kV 50 kV 45 kV
27 kV 150,0 kV
100@ 16,4 kV 60 kV 50 kV
38.8 kV 170,0 kV
100@ 23,0 kV 70 kV 60 kV
Bng 2: Dng in nh mc (kV)
M t 15 kV 27 kV 38 kV Dng lin tc nh mc Dng ngn mch, i xng Dng ng
ngn mch nh, khng i xng Dng ng ngn mch, khng i xng RMS
630 A* 12.5 kA** 31.0 kA 20.0 kA
630 A* 12.5 kA** 31.0 kA 20.0 kA
630 A* 12.5 kA 31.0 kA 20.0 kA
* Ty chn 800A ** Ty chn 16.0 kA Bng 3: nh mc c kh
M t 15 kV 27 kV 38 kV S ln thao tc in/c nh nht Khi lng
kg(lbs)
10,000 110(242)
10,000 115(253)
10,000 125(275)
Bng 4.1: S ln ct ngn mch cho NOVA15i v NOVA27i
Kiu % dng ct nh mc S ln thao tc X/R nh nht Nova15i Nova27i
15-20 45-55 90-100
44 56 16
Tng 232
4 8 17
Bng 4.2: S ln ct ngn mch cho NOVA38i
Kiu % dng ct nh mc S ln thao tc X/R nh nht Nova38i 15-20
45-55 90-100
88 112 32
Tng 232
4 8 17
* Theo tiu chun IEC 62271-111-2005 * Theo tiu chun IEEE
C37.60-2003
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S280-43-1
5
Hnh 2. Kch thc Recloser 3 pha Nova i.
Ty chn u cc A
Kiu con mt, 1/10-500 mcm Phm vi dy cp (dng ln nht 600A)
89
Kiu con mt, 4/0-1000 mcm Phm vi dy cp (dng ln nht 600A)
111
Kiu phng, 2 l (dng ln nht 600A)
119
Kiu phng, 4 l (dng ln nht 800A)
121
Khong cch r
M t Khong cch r (mm) ng r (mm/kV) u cc ti u cc 1180 79 NOVA 15i
u cc thp ti t 671 45 u cc ti u cc 1473 55 NOVA 27i u cc thp ti t
951 35 u cc ti u cc 1763 46 NOVA 38i u cc thp ti t 1215 32
B C D E NOVA 15i 809 528 400.5 285 NOVA 27i 908 627 400.5 285
NOVA 38i 1007 676 441.1 298.6
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S280-43-1
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GIAO DIN NOVA i
Giao Din Ngun iu Khin Recloser Nova i (hnh 3 v 4) vi giao in
ngun-iu khin hon ton hot ng c cng vi t vi iu khin From 6 c trang b
b chuyn i DC-DC, mch giao din, cp iu khin 19-pin. Giao din ngun-iu
khin bao gm u cm 19 pin trn recloser v b si bn trong (iu khin m) c
cp ngun t ngun vo ca t iu khin.
Bo mch chuyn i dc-dc chuyn i 24Vdc t c quy thnh 53Vdc np t in
trong Nova i. Ngoi ra bo mch chuyn i DC-DC cn c mch gim st in p bo
v cho c uy khi hng hc v cp ngun thao tc ng/ct khi khng c ngun AC.
Khi khng c ngun cp AC th c quy s cp ngun thao tc ng/ct. Mt trnh t 4
ln ct vi khong thi gian ng li cc tiu nh c cu hnh cho mi t iu khin m
khng cn ngun AC. B recloser v t iu khin c th thao tc hn 1000 ln ch
vi ngun c quy.
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S280-43-1
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QUY TRNH LP T
Khi lp t recloser, tham kho hng dn ng dng gi lp . Hng dn lp t c
i km vi gi gi lp. 1: Kim tra nh mc trn nhn. m bo nh mc, cc thng s t
v giao din ty chn trn nhn recloser (hnh 5 v 12) ph hp vi kt hoch lp
t.
2. Th cao p: Trc khi lp t recloser Nova i. Kim tra bn in p cao.
Tham kho phn thng tin phc v cho quy trnh kim tra bn in p cao.
3. Lp t recloser: Lp t recloser ph hp vi khung lp trm hay treo
ct ca hng Cooper Power Systems. Xem hnh 6 hng dn di chuyn v nng d
.
Ch : Tun th cc quy trnh an ton a phng khi nng v lp t thit b. S
dng cc khoen nng trn my. Nng my nh nhng v khng x dch. Thc hin khng
ng c th gy h hi thit b.
Ch : Lt nghing. Trng tm cao. S dng 4 mc trnh my b lt trong qu
trnh nng. Thc hin nng khng ng c th gy tn thng cho ngi v h hi thit
b.
Di chuyn recloser Khi vn chuyn, Recloser Nova i c ng thng v pa
lt. Khi di chuyn bng xe xc/cu, recloser phi c c nh trn pa lt trnh
gy h hi khi chm vo ch th OPEN/CLOSE. Nng Recloser Thc hin cc thao
tc an ton khi nng thit b. Nng my phi nh nhng v khng x dch .
Ch : Tn thng con ngi. S xuyn c cnh sc. Mang gng tay bo h khi lm
vic. Khng tun th c th dn n b ct v xy xt.
Cnh bo: in p nguy him. Lun s dng so cch in khi lm vic vi thit b
ny. Khng tun th c th dn n tip xc vi in p cao, m s tip xc dn n t
vong hoc gy tn thng nghim trng.
Cnh bo: Thit b ny khng nhm mc ch bo v con ngi. Do phi tun th tt
c nguyn tc v iu kin thc t an ton ti a phng khi lp t v vn hnh my.
Khng tun th c th dn n t vong hoc gy tn thng nghim trng cho ngi v h
hi thit b.
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S280-43-1
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4. Ni t recloser. Thc hin ni t vo u ni t. Ni t pha sau v my. Xem
hnh 3 v v tr ni t. u ni t ph hp vi dy cp xon t #10 n #2. Hnh 9, 10,
v 11 nn c dng khi ni t recloser NOVAi 5. Lp t t iu khin. Tham kho
cm nang v lp t t iu khin. m bo cp iu khin c ni gia t v recloser. T
c lp trnh ph hp cho k hoch lp t v c ni t 6. Ni dy co p (hnh 7) Lu :
dao cch ly v dao ni tt khng c yu cu nhng nn c s dng h tr ng/ct v
cch ly.
A: u ni dy in p cao ti u cc s xuyn recloser. Tham kho hnh 8. xc
nh u cc ca NOVA i. Nn s dng dy ng ni u cc.
B. Nn lp chng st bo v qu p 2 pha ca recloser.
QUAN TRNG: Mc nh s nm ngang l
pha ngun v s ng l pha ti. Cng c th dng s ngang l pha ti v s ng l
pha ngun. Lu : o chiu s xuyn ngun v ti khng nh hng n bo v qu dng
nhng c th phi thay i ci t v u dy t o lng ng. i vi thit b c cm bin p
bn trong, s xuyn nm ngang (1,3,5) phi c ni vi ngun. Cm bin p khng
th gim st in p ngun khi recloser NOVA i v tr OPEN nu s xuyn ngang c
ni pha ti.
Ch : H hi thit b. Khng iu chnh hay xoay cc s xuyn. Cc s xuyn c
nh my cn chnh ph hp vi dng lin tc ca my. iu chnh hay xoay cc s xuyn
c th h hi bung ct lm h hi thit b hoc tn thng ngi.
Cnh bo: in p nguy him. Lun ni t tt c thit b. Khng tun th c th gy
t vong, tn thng ngi v h hi thit b.
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S280-43-1
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Tho RECLOSER khi Li
1. Cm ct theo dng t. 2. ng tt c 3 dao ni tt. 3. Dng so cch in ko
cn mu vng xung. Cn thao tc mu vng nm di np che trn recloser. 4. Tiu
khin s nhn bit recloser ang ct v hin th OPEN/LOCKOUT trn bng t 5. M
dao cch ly pha ngun v ti. 6. Tho cp cao p
7. Tho cp iu khin, cp ngun, ni t t recloser. Lu : Tho cp iu khin
trong khi recloser mang in s khng gy hi CTs. 8: Tho d recloser phi
theo quy trnh ca in lc
NI T Recloser NOVA i
H THNG 3-PHA KHNG NI T V TR KHNG T C th yu cu dng thm ni t ty
theo quy nh an ton ca a phng nh ngha v mc in p bc & in p chm.
Tham kho quy nh ni t ti a phng c quy trnh ni t ph hp.
QUAN TRNG: Tt c ng y t bn ngoi vo t iu khin khng c cch ng dy t
tng ng qu 203 mm. Khi c st, in p xp x 1,5 kV trn mi foot dy dn.
Chiu di khc nhau ca dy dn v dy ni t c th gia tng ng sut ln linh kin
trong t iu khin khi c xung st.
QUAN TRNG: khi lp trn ct, phi ni t gia recloser, bin p, t iu
khin, v thit b SCADA bo v thit b tt. Dy ni t recloser ti thiu l 50
mm2
Cnh bo: in p nguy him Nu recloser ang mang in trong khi tho cp
iu khin. Cun dy th cp CT c th sinh ra in p cao. Tip xc vi in p cao
c th dn n t vong hoc tn thng nghim trng.
Quan trng: bt k thit b cm bin p no lp t vi recloser NOVA i cng
phi ni t chung vi recloser.
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S280-43-1
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NI T VI BIN P CP NGUN TI CT: 4-DY NI T LP LI, 3-DY KHNG NI T HOC
NI T QUA TR KHNG. Lp t bin p cp ngun ti ct treo recloser phi bao gm
(hnh 9): Bo v s xuyn recloser v bin p cp
ngun bng chng st. Ni t np v v recloser. Ni t v bin p. Ni t v t
iu khin. Ni t thit b SCADA.
NI T VI BIN P CP NGUN LP XA: 4-DY NI T LP LI, 3-DY KHNG NI T,
HOC NI T QUA TR KHNG. Lp t bin p cp ngun xa recloser phi bao gm (
hnh 10): Bo v s xuyn recloser v bin p cp
ngun bng chng st. Ni t np v v recloser. Ni t v bin p. Ni t v t
iu khin. Ni t thit b SCADA.
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S280-43-1
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NI T TRN H THNG 3 DY NI T N Lp t trn li 3-dy ni t n phi bao gm
(hnh 11): Bo v s xuyn recloser v bin p cp
ngun bng chng st. Ni t np v v recloser. Ni t v bin p. Ni t v t
iu khin.
Ni t thit b SCADA
Ch : in p truyn dn. Khng ni trc tip n thit b iu khin t xa. Tt c
thit b SCADA phi c lp t ti ch hoc ni cp quang hoc ph kin truyn sng.
Kt ni trc tip ti thit b iu khin xa c th to ra in p truyn dn gy tn
thng ngi hay h hi thit b.
QUAN TRNG: khi lp trn ct, phi ni t gia recloser, bin p, t iu
khin, v thit b SCADA bo v thit b tt. Dy ni t recloser ti thiu l 50
mm2
QUAN TRNG: Tt c ng y t bn ngoi vo t iu khin khng c cch ng dy t
tng ng qu 203 mm. Khi c st, in p xp x 1,5 kV trn mi foot dy dn.
Chiu di khc nhau ca dy dn v dy ni t c th gia tng ng sut ln linh kin
trong t iu khin khi c xung st.
Ch : in p nguy him. Khng s dng in li h p cp ngun iu khin
recloser tr khi mng ny c thit k c bit chu ng cng in p t ln. Chm t
trn li cao p c th to ra in p t cao.
Cnh bo: in p nguy him: Thc hin thao tc an ton a phng v cch in
khi bo tr thit b. in p bc v chm cao l c im ca li in ny. Khng tun tH
c th gy t vong hoc tn thng nghim trng.
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S280-43-1
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VN HNH
Vn hnh in: Recloser Nova i s dng mch giao din t trong v my. Mch
giao din iu khin tn hiu ng ct ti khi ng t. Hin th tip im
OPEN/CLOSE
Ch th v tr tip im CLOSE/OPEN bao gm ch th CLOSE mu v ch th OPEN
mu xanh nm pha di np recloser (hnh 12).
Thao tc so cch in (ct bng tay, ng bng in)
Recloser c th c ct bng tay, s dng hotstick ko cn OPEN mu vng trc
b mt recloser. (hnh 12). ng recloser sau khi ct bng tay, u tin y cn
mu vng ln, sau s dng t iu khin ng recloser.
Quan trng: Nu cn mu vng vn gi nguyn v tr di. Recloser khng th ng
bng in t t iu khin.
Cnh bo: in p nguy him . Lun s dng so cch in khi lm vic vi thit b
ny. Khng tun th c th tip xc vi in p cao m c th gy t vong hoc gy tn
thng nghim trng.
Cnh bo: in p nguy him. Khng bao gi tin tng vo v tr m ca cn thao
tc hoc n hin th v tr. N khng m bo ng dy khng mang in. Phi tun th
quy trnh a n t o n ti a. Nu khng c th tip xc vi cao p dn ti t vong
hoc gy tn thng nghim trng.
Cnh bo: in p nguy him. Khng nn tin tng v tr m ca cn thao tc mu
vng hoc n ch th tip im. N khng m bo ng dy khng mang in. Lun thit lp
khong cch ly nhn thy. Khng tun th quy trnh an ton c th tip xc vi in
p cao m n s dn n t vong hoc tn thng nghim trng
Cnh bo: Thit b ny khng nhm mc ch bo v con ngi. Do phi tun th tt
c nguyn tc v iu kin thc t an ton ti a phng khi lp t v vn hnh my.
Khng tun th c th dn n t vong hoc gy tn thng nghim trng cho ngi v h
hi thit b.
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S280-43-1
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TY CHN CM BIN P NI
Cm bin p ni nm bn trong Nova i v c ni vi s xuyn ngang. Cm bin
cung cp in p thp cho t iu khin Form 6 thc hin chc nng o lng v/hoc
bo v La chn cm bin, dy cp, t iu khin c chnh xc khong 2% hoc nh hn
hay chnh xc gc pha 1.50 trong vng nhit -400C n +500C Lp t:
Tham kho mc Lp t ca cm nang ny c thng tin v quy trnh lp t
recloser NOVA
i. Tham kho thng tin vn hnh S280-70-18 c thm thng tin lp t t
Form 6 trn ct. Xc nhn u ni ng cc pha ngun v cc pha ti. y l yu cu bt
buc cm bin p bn trong hot ng ng. Kim tra ni t ca recloser Nova i v
t iu khin trc khi thc hin u ni cao p v th cao p. Ni t ng bao gm ni
in tt dy ni t n u ni t trn thn my. Ni t tt t iu khin. Lu : B mt sn
ca v my c th cn tr vic ni t v reclsoer. Lun thc hin ni t tt n u ni
t trn thn recloser. Ni t v my km c th dn n xut hin in p cao trn v t
km theo u ni in tr cao p ca cm bin p.
Recloser c km u ci 4 pin (hnh 13) ni ti t iu khin bng cp bc
4-li. Ph kin ca t gm u c 4-pin v mch in tng ng trn t. xin xem hnh
14.
Quan trng: Cng tc ngt ngun AC l cn thit cch ly t iu khin kim tra
v sa cha.
Cnh bo: in p nguy him. Lun ni t tt c thit b. Khng tun th c th gy
t vong, lm tn thng nghim trong con ngi v h hi thit b.
Cnh bo: in p nguy him. Lun s dng so cch in khi lm vic vi thit b
ny. Khng tun th c th dn n tip xc vi in p cao m dn n t vong hoc gy
tn thng nghim trng.
Cnh bo: in p nguy him: Khng chm vo u ci ca dy cp cm bin in p. Nu
recloser mang in v dy cm bin in p khng ni vi recloser hoc t iu
khin. Mt in p 250Vac s xut hin ti u cp ci. Tip xc vi in p ny c th
gy tn thng cho ngi.
Cnh bo: Thit b ny khng nhm mc ch bo v con ngi. Do phi tun th tt
c nguyn tc an ton ti a phng khi lp t v vn hnh my. Khng tun th c th
dn ti t vong, gy tn thng nghim trng cho ngi v lm h hi thit b.
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S280-43-1
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Tip xc in ca recloser, t iu khin v dy cp phi sch v kh ro. B mt
bn phi c lau chi vi cn v b mt t phi c lm kh bng my sy. B mt kh rt
quan trng u ni cm bin p ni. chnh xc ca cm bin c th b nh hng bi hi m
v d bn.
u ni cp iu khin, cp ngun, v cp cm bin vo t. Xc nhn dy cp/ l cm
in ng. Ni dy khng ng c th gy h hi cho recloser v/hoc t. Hon tt ci t
t trc khi thc hin kt ni cao th. Tham kho phn hng dn Vn Hnh ca cm
nang ny.
u ni in ng n u cc recloser. Xc nhn pha ph ti (s xuyn dc) v pha
ngun (s xuyn ngang) ng. y l yu cu m bo cm bin p hot ng ng. Cp ngun
cho recloser v kim tra in p u ra trong t iu khin. Khi recloser c cp
in, in p u ra ca cm bin p l 6V, nh vo in khng u vo t Form 6. Nu cp
cm bin t hoc recloser c tho ra, u ra cm bin p l 250 Vac. u cm trn
recloser v cp cm bin (pha t) l cc ci 4 pin gim thiu v tnh tip xc vi
u ra cm bin p. in khng u vo t n cm bin lm gim in p cn 6V trong qu
trnh hot ng bnh thng. Ch : Tc ng nhm. Khng ni t
ti recloser ang mang in cho n khi tt c ci t c lp trnh ng v c xc
nhn. Tham kho thng tin lp trnh cho t iu khin ny. Khng tun th c th
dn n t v recloser tc ng nhm, thit b h hi v tn thng cho ngi.
Ch : Tc ng nhm. Xc minh tt c chn u ni v phn tip xc sch s v kh ro
trc khi ni dy cp. Li cm bin p c th xy ra do d bn. Khng tun th c th
dn n t v recloser tc ng nhm.
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S280-43-1
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Ci t t iu khin Form 6 T Form 6 phi c lp trnh vi t s PT v gc pha
iu chnh. Tham kho bng 5 v 6. Nhng thng s ny c nhp vo mn hnh Cu Hnh
H Thng (hnh 15) Khi lp trnh vi Form 6, PT phi c ni hnh sao (Y) v
tnh nng gi lp pha phi c tt. Tham kho Thng Tin S280-70-4 bit thm
thng tin v lp trnh Form 6
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PH KIN Cng tc ph Cng tc ph 3-tng c th c cung cp nh l mt ph kin.
Mi tng c 2 tip im c lp cho php kt hp a (cng trng thi tip im
recloser) v b (ngc trng thi tip im recloser). Tip im cng tc c mc
cch in 600V v dng nh mc lin tc 10A. nh mc ct theo bng 7
u cc u cc chun l loi phng 2-l nh mc 630A. Mt eyebolt 1/0-500 mcm
(630A), eyebolt 4/0-1000mm (800A), v u cc phng 4-l , l nhng ph kin
ty chn (hnh 16) Eyebolt v u cc phng c nh c lm t hp cht ng. Hng
Cooper Power Systems khuyn dng dy ng ni in u cc c tt. Lp chng xt
dng bo v tm thi cho dy nhm khi ni vo u cc phng phi c duy tr trong
khong thi gian xc nh da trn iu kin kh hu, ph ti v cc iu kin lp t
khc. Gi Lp Treo Ct Gi lp treo ct (hnh 16) c lin kt vi recloser
khung bng bu-lng.
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Gi Lp Chng St Gi lp chng st (Hnh 17) c th c bt c vo gi lp
recloser lp chng st pha ngun v ti. Chng st khng c cung cp km vi gi
lp.
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Khung Lp -Trm C khung lp-trm (hnh 18) trong trng hp lp trm
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THNG TIN VN HNH Yu cu vn hnh Recloser Nova i c thit k vi tui th
c kh nh nht l 10,000 thao tc. Recloser Nova i cn c kim tra nh k h
hi vt l v kh nng vn hnh.
Kim tra nh k Bi v recloser c th c vn hnh nhiu iu kin v kh hu khc
nhau, thi gian vn hnh c xc nh tt nht trn kinh nghim vn hnh thc t.
Kim tra vn hnh Recloser ny s dng vi t vi iu khin Form 6. Tham kho
hng dn s dng t.
1: Kim tra nh mc trn nhn. m bo nh mc, thng s t, giao din trn nhn
recloser (hnh 5) ph hp vi k hoch th nghim.
2: Kim tra thao tc ng/ct bng in. ng v m tip im recloser bng t vi
iu khin. Xc nhn tip im ng/ct bng:
A: n hin th v tr ng ct, hoc B: Kim tra thng mch gia cc u cc
recloser.
3: Kim tra ct bng tay: Ko cn mu vng (hnh 12) xung m tip im
recloser. Xc nhn tip im m bi:
A: n hin th v tr ng ct, hoc B: Kim tra thng mch gia cc u cc
recloser.
4: ng tip im recloser A: u tin, ycn mu vng ln. B: ng recloser
bng t vi iu khin.
Cnh bo: Thit b ny khng nhm mc ch bo v con ngi. Do phi tun th tt
c nguyn tc an ton ti a phng khi lp t v vn hnh my. Khng tun th c th
dn ti t vong, tn thng nghim trng cho ngi v lm h hi thit b.
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Th Cao p
S dng quy trnh sau y th cao p ti 75% nh mc in p chu ng tn s thp
trong 60s. Xem in p th bng 8 v hnh19 v s u ni.
*Khi c cm bin p, dng r tng thm khong 0.53mA Khi c cm bin p, dng
r tng thm khong 0.32mA ** Khi c cm bin p, dng r tng khong 0.37mA Th
nghim 1: 1: ng tip im recloser. 2: Ni t recloser. 3: Ni u cc 2, 4,
6 vi nhau (xem hnh 8) 4: t in p th ph hp ln cc 2, 4, 6 (bng 8) 5:
Recloser phi chu c in p th 60s. Th nghim 2: 1. ng tip im recloser.
2: Ni t recloser. 3: Ni t pha A (cc 2) v pha C (cc 6) 4: t in p th
ph hp ln pha B (cc 3) 5: Recloser phi chu c in p th 60s.
Th Nghim 3 1: M tip im recloser. 2: Ni t recloser. 3: Ni t cc 1,
3, 5 (hnh 8). 4: Ni chung pha 2, 4, 6 5: t in p th ph hp ln cc 2,
4, 6. 6: Recloser phi chu c in p th 60s. 7. o ngc u ni: ni t cc 2,
4, 6. 8: t in p th ph hp ln cc 1, 3, 5 trong 60s. 9. Recloser phi
chu c in p th 60s.
Cnh bo: Bc x: Ti in p th nghim quy nh, bc x pht ra bi bung ct
chn khng l khng ng k. Tuy nhin in p cao hn, bc xa pht ra c th gy hi
cho ngi. Xem thng tin S280-90-1
Cnh bo: in p nguy him. Thit b ng ct v bin in p cao th phi c t
trong lng th nghim hoc thit b bo v tng t trnh s c tip xc vi phn
mang in cao th. Ni t tt c thit b chc chn. Khng tun th c th dn n t
vong, tn thng nghim trng v h hng thit b.
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KT QU TH CAO P
Th cao p cung cp thng tin v tnh trng cch in ca recloser v tnh
ton vn ca bung ct. Nu recloser vt qua th nghim 1 v 2 nhng khng vt
qua th nghim 3, nguyn nhn c kh nng l do bung ct. Kim tra tng pha c
lp xc nh li mt pha hay nhiu pha. Nu recloser khng vt qua th nghim
1, 2, hay 3, lin h vi trung tm bo tr hoc i din ca Cooper Power
Systems Kim tra mun Nova i Nu pht hin mun Nova i b phng in b mt,
ngh kim tra recloser c m bo vn hnh ng khng. Nu c nhng biu hin phng
in b mt (c du bi than hoc i mu), quy trnh sau y c thc hin khi phc
li trng thi ban u ca NOVA i: 1. ng dao ni tt v tho recloser khi
li
ging nh miu t trong cm nang ny. 2. Kim tra h hi u cc mun, tho
b
u cc hng v thay mi. 3. Kim tra h hi thanh dn ca m un.
Nu c h hi thanh dn th phi c thay th.
4. Xc nhn tht cn thn khng c h hi bushing m c th cn tr s vn hnh
chnh xc. Kim tra s ton vn cc khoen nng.
5. Lau sch m un b h hi bng cn isopropyl v ming lau nylon (loi
khng lm chy xc) loi cc bi than.
6. Kim tra bn in mi ca m un bng th cao p. Xc nhn tnh trng pha -
t v pha pha. Xem mc Th Cao p trong cm nang ny.
X L S C
Nu recloser khng thc hin ng nh phn miu t Hot ng trong cm nang
ny, cc thng tin sau y c th h tr x l s c: Reclose khng ng Chc chn cn
vng c y ln ht Kim tra tt c cc u ni c ng khng Xc nhn t c ngun. Ngt
ngun AC v kim tra c quy. Kim tra cu ch bo mach chuyn i DC-
DC. Reclose khng Ct bng in Kim tra tt c cc u ni c ng Xc nhn t c
ngun. Kim tra cu ch bo mach chuyn i DC-
DC.
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