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7/23/2019 Air core reactors Brochure GB.pdf
1/8 1
GRID
ACRAir-Core Reactors Dry Type
Power comPensation
al Gd h hn 50 y xpn
n dgnng nd nufung a-c
r f vu k gn und
h wld, nludng pw gnn, t&D
nwk, ndul fl, oem nd
ll lb.
For both industrial environments and
networks, Alstom Grid offers a broad
range of cost-effective solutions:
Current-limiting reactors l h fulun lvl pbl wh xng
pn/nl qupn nd ul
pvd f vy -ffv lun.
Neutral-earthing reactors nndbwn h nul f pw y nd
h l h ln--h un
dd vlu und y h ful
ndn.
Smoothing reactors du h hnun nd nn vun (ppl)
n Dc y.
Harmonic filter reactors uullynnd wh p nd n
fl u du hn nn
n h nwk whh u hgh l,
hgh nul un nd nfnwh pu nd lunn
qupn nd whh pnbl f
hgh hn dn lvl.
Shunt reactors pn f hpv un f lng nn ln
bl, llwng v ngy
p hugh h y.
Customer Benefts
High mechanical strength
hd lvd h-u f
Low noise level for noise
v ppl
Conservative temperature
f xdd v lf
Customized space saving
lu f ll
p
Surface treatment for
p g UVd d pllu
Minimum maintenance
qu d
vlly fdly
Air-Core Reactors (ACR) provide a linear response of impedance versus current which
is essential for numerous applications. The dry type design is maintenance free and
environmentally friendly.
Damping reactors l h nuh nduuh un f p bnk.
Discharge reactors ud n h byp/dhg u n pnn
y l h p dhg
un.
Arc-furnace series reactors pvd hny pw f n nd
l h unbl -fun un nd
vlg.
Power flow control reactors nl hun n w plll u.
Motor starting reactors nndn wh l h nuhun dung h ng pn.
Special applications: lb pl acr ud n lb,
nly f un-lng pup. oh
dv nlud duplx un-lng
reactors, split-phase shunt or zero tolerance
, .
7/23/2019 Air core reactors Brochure GB.pdf
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G~
M
1. Applications
1.1. Current-limitingth d h
l h fd f lg
h u ud y ful d
lvl pbl h h p
qup f h u. i vy -
ffv lu, l h d f
upgdg h hg d p
y h h h-u p f h
y d.
th dgd ff pfd
pd d hd h d d
ful (h-) u dug pfd
pd f .
Inducing Energy with Success
1.2. Neutral-earthingth gl-ph ud gud h
ul p f h-ph k l
h u h v f ful b
ph d gud. if h u pfly
bld, h ulg u fl hugh
the reactor will be zero and there will be no
l.
1.3. Smoothingshg ud du h
h u d vu
in the DC system. They are used in HVDC links
d dul ppl uh f,
y, .
1.4. Harmonic filteringth h u d
dud h k ul f h
p f p l dv, lg
duv h, .
th h u vl
k pbl, uh :
Greater losses
Malfunctioning control systems
High neutral currents
Interference with computers
Interference with telecommunications
qup.
a-c r ACR
1.1 cu-lg
1.1 cu-lg dg 1.4 Fl
1.4 HV harmonic lter
1.2 nul-gudg
1.3 shg
7/23/2019 Air core reactors Brochure GB.pdf
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mv, ul p hgh f whn
a certain HDL (Harmonic Distortion Level)
hhld hd.
Harmonic filter reactors, in association with
p un nd, nlly, ,
fl u und n
fquny (nn fquny)
du, blk pvd lw pdn
ph f h hn un n h ud
fquny ng. thy nnd h n
plll n nfgun.
Harmonic filters are typically installed in
ubn, n sVc (s Va cpn)
and in HVDC links.
th dgnd pf
dgn uh Quly-f, ln
f h ndun bwn ph nd f h
lf.
spl lw Q-f qun n b
ung n ngd dpng u.
1.5. Shuntth ud n plll
nfgun pn f h pv
un f lng nn ln bl.
a ul, hy llw h flw f v
ngy hugh h y. in lw-ld
un, hun y b ud
du h vlg du pn f
h nn ln nd, n dng, du
n l.in ny nlln, h
nnd h y wndng f h hgh
vlg nf.
1.5.1. sVc (s Va cpnn)
sVc ppln ud pvd dyn
voltage stabilization, improve synchronous
bly nd p dy- vlg
upp. th sVc n l b qud
f dyn ld blnng n ndul
nlln ung lg ll nd
h qupn wh vbl ld. typl
ppln nlud l wk (l ll,
a-c r ACR
1.5.1 sVc
1.5 shu d
to tertiary of HV Transformer
1.5.1 thy lld 1.6 Dpg
n, -fun), pp ll, nng
pn, .
sVc y pvd dyn pw
pnn f ul nd nduy
nwk. th n bnf nlud
dyn vlg upp, pvn f
y bly, pw lln dpng,
v pw blnng, flk nl nd
dun f l. sVc nlly n f
bnn f hy-nlld
(tcr), hy-whd p nd
(tsc nd tsr), hnlly-whd
p bnk (msc) nd hn fl
(HF).
1.6. Damping reactorth nnd wh n
p bnk l h nuh
un h u dung h whng
pn. i dgnd ff pfd
pdn nd whnd h d
un nd h ful un n h vn f
h-u d wh hgh fquny
dhg un f h p bnk.
1.5.1 tcr 1.5 shu ppl
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a-c r ACR
1.7. Discharge reactorth ppln nlud f pnn y whh
u p bnk nnd h nn ln.
thy:
improve voltage regulation
improve system transient stability
increase transmission line capacity
reduce electrical losses and save costs.
1.8. Arc-furnace series reactorsth -fun nnd n wh h ld f
n -fun ud l l (n, l, lunu, .).
i pvd h ny pw f n nd l h vy
unbl -fun un nd vlg (flk), plly dung h
lng p.
i wndng h hgh hnl ngh whnd h f ud
by h f whng pn f h ll nd h hgh hn
un whh nhn h ll .
1.9. Power flow controlth nnd n n pw y (uully
transmission line) to optimize the power flow through modification of the
nf pdn. thy hng h ln pdn h n uh
wy h h ld flw n b nlld, nung xu pw
nf v djn nn ln.
2.0. Motor startingth -nnd wh l h nuh undung h ng pn. af -up, h yplly
by-pd l l n nnuu pn. th n b
dnnd b h-u-pf n.
2.1. Special applications2.1.1 t lby
t lb fn qu vl wh p dju h
ndun vlu wll flxbl lnk nn h n plll
n dng qun.
Usually, the rated current value is low, and the BIL or the short-time
un hgh.
1.8 a-fu
2.1.1 spl f lb
7/23/2019 Air core reactors Brochure GB.pdf
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Duplex Reactor
Gen.
1P1
N1
I
N2
IL
1S1
AT
T
1S2
1P2
1P2
2P2
N1 IN2
2. Manufacture
al Gd dg f uu luu
pp du d plll. th du b
uld gl , uld bl luu pfl pd
by fbgl p. th -ffv lu b ld,
f d d du yp b ud h dg,
dpd h qud g f h qup.
For encapsulated design, the conductors are mechanically immobilized
d puld by pxy pgd fbgl fl fg
yld. Dpdg h g, f h
yld d plll b luu pp
pd. th dvdul yld pd by fbgl p
fg lg du.
Alstom Grid has an experienced team of reactive power compensation specialists able to
provide customized solutions to meet special customer needs.
a-c r ACR
2.1.2 Duplx un-lng
Duplx un-
lng
pdu lw
n und
nl ndn
nd hgh n
und ful ndn,
wh h dvng
f lw vlg
dp und nl
d. th yp f b ud y hh ly
ld.
th duplx dgd uh y h, ud l
d, h g fld f h hlf-l pp,
ulg l b p upply d ld.
i f ful fdg u, h ful u fl ly
hugh hlf-l, d quly h pp flux f h h
hlf-l ld by h d f h hlf-l h h fd ud ful d.
2.1.3 spl-ph hu
Dpdg h qud g, hu b ufud
h pl-ph dg pvd uff vy dg u-
-u ful. i h , ubl u b dg f
h b fd f g f h p ly.
2.1.4 Z l
i pbl u pl-ph g ( vlly lld
part coils) if the inductance tolerance requirement is 0 (zero). The
du l vlu by djug h pg f h pl.
2.1.2 Duplx
2.1.3 spl-ph
7/23/2019 Air core reactors Brochure GB.pdf
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a-c r ACR
3. Accessories
3.1. Corona ringswh y l vbl
, al Gd pvdd
h ubl g d f
luu ub.
3.2. Bird barrierso qu, al Gd pvd h
h bd b.
th bd b f pu
d UV fbgl fd pl
gd h qu-hpd pg. th bd
b d dvly ff h lg
f h .
3.3. Insulatorsal Gd pvd ll h y
upp ul f h .
3.4. Pedestalsth pdl pvdd h al Gd
h g d ll
l qud by h dg
minimize induced losses.
3.5. Enclosureso qu, al Gd dg d
upply h lu.
3.6. Tappingr b uppld h p f
vbl du.
cu lg
1
2
3
4
Fig.01. Air-Core Reactor construction
1/ Lifting lug
2/ sp (lg du)
3/ c (pd)
4/ tl
5/ iul
6/ ex bk (pdl)
5
6
Air-Core Reactor construction
7/23/2019 Air core reactors Brochure GB.pdf
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B
1.1
xDs
1.1
xDs
1.1xDs
Ds
1.1xDs1.7xDs 1.7xDs
1.0xDs
1.1xDs
1.5xDs
C
B
1.0xDs
BOTTOM
A TOP0.5xDs
0.5xDs
a-c r ACR
4. Installation
4.1. Locational Gd ubl f h
d ud ll.
r f lld xg
ub lld pl xg
. al Gd dg
f d p l b ud
dly h xg fud.
al Gd l dg f u
d lu. i h , h
dgd vd xv hg.
4.2. Mounting arrangement
r b ud dvdully gl-ph u, d-by-d, h-
ph k, l p f h h.
spl ug g b
ffd f p l. Fgu 2
llu p vlbl.
4.3. Magnetic clearancesal Gd b gudl f g
l h fgu 3.
5. Terminal orientation and hole
patterns
al Gd uppld hnema iec fl pd luu pp
l. oh dd b uppld
qu.
Fgu 4 & 5 h ypl l
d hl p.
oh l d hl p
b pvdd qu. F pp
, bll -pld f
b pvdd.
6. Painting
af h ug p, h
fully ppd bf pg h hgh
gd quly l, hh pvd lg-
p g UV d.
th ypl l mull n6.5 gy,
ansi 70, RAL 7037 and RAL 5024, bu
h l b dd
qu.
i hvly pllud v, al Gd
u pl pg p (rtV), d
b pvdd h p v
l h dv ff f pllu.
Cost-effective Solutions
Fg 02. mug g
Fg 04.
Fg 03. mg l
Fg 05.
a: r u uf
Kp ll p fg ld lp
ud B
Kp ll p fg ld lp
lg ll p ud c
D: r u d
7/23/2019 Air core reactors Brochure GB.pdf
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GRID
XL= 2 x x x L
QL= I
N
2 x xL
Q =X
L
Rac
QLosses =
QL
GRID-
Produ
cts-L
3-A
CR
_0602
_V4
_V2010
_08
_EN
-Alsto
mG
rid
,theAlstom
Gridlogoandany
alternativ
ev
ers
iont
hereo
faretrademarksandserv
icemarkso
fAlstom
Grid.T
heothernamesmentioned
,reg
isteredornot,aretheprop
erty
ofthe
irrespectiv
e
compa
nies.
Thetechnicalandotherdatacontainedinthisdocum
entareprov
idedforinformationonly.
NeitherAlstomG
rid
,itsofcersnoremployeesacceptresponsibility
fororshouldbetakenasmakinganyrepresentationorwarranty(w
hetherexpressorimplied)as
a-c r ACR
7. Formulas
s uful ful:X
LInductive reactance ()
f Frequency (Hz)
L Rated inductance (H)
QL
rd p (Va)
in
rd u (a)
Q Quly-f (Q-f)
r
Effective resistance () at system
ug fquy
8. Quality control
a al Gd, uu quly
pv y pl bd hconstant quest for optimized product design,
pu f l d p,
pdu d u v. Pdu
bld by xpd d ll-
d kf gu xu
u f.
thk h fudl ppl,
d h fl quly g
y, ll ufug u f al
Gd iso-9001, iso 14001 d
OHSAS 18001 fd.
9. Testing
th pg d u ug
u y pflly dvlpd
f h pup.
t ply h l dd
uh iec, ansi quvl.
nuu yp hv b ufully
pfd al Gd
recognized laboratories such as KEMA
(Holland), CESI (Italy), IREQ (Canada),
CEPEL (Brazil) and LAPEM (Mexico). Type
p vlbl qu.
10. Inquiry data
Rated inductance (mH) or impedance ()
Rated current (A)
Harmonic currents (A) System voltage (kV)
BIL (kVp)
Rated frequency (Hz)
Thermal short-time current (kArms)/
du ()
Mechanical short-time current (kAp)
Mounting arrangement
Rated power (MVAr): for shunt reactors
Additional information: seismic
d, d ld, pllu lvl,
l py, p l, pg
lud, pl dd, b
pu, hudy, ld,
duy yl, p qu,
qu, .
11. R&D activities
al Gd h ff f
v. th py b
l f h d
dvlp xp h y
y xp h ldg-
dg hlg g f
h pd p. i
dvlp vv, dvd
hlg h b h k
d ffdbl d pg
h v. th al Gd r&D
uy k h ddd
fug g p p
d h flg. o f kyb ud ldhp
ufug acr lu.
Alstom Grid Worldwide Contact Centre
.gd.l./
tl: +44 (0) 1785 250 070www.grid.alstom.com