Toshiba VK-6M32A Owner's manual

lvlav. 31, 2012 9:lSAlVl
TOSHIBA
No 1530 P, 2
Document; GF0776{'I-B
INSTRUGTION$
IilSTALLATION . OPEFATION . MAINTENANCE
Type VK & HVK Series Vacuum Circuit Breakers 5-15kV
APPLICABLE TYPE FORMS
(1200A) (20004) (30004)
VK.6M32A VK.6P32A
I.IVK.6M32A HVK-6P32A
VK.6M4OA VK.BP4OA
HVK-6M4OA HVK'6P4OA
VK"8M4OA VK-8P4OA VK-8O40
HVK-8M4OA HVK-8P4OA
,VK.1OM25A2 VK-1OF25A2
HVK-lOM25A2 HVK-I0P26A2
VK-10M40A VK-10P40A VK-10040
HVK-1OM4OA HVK.IOP4OA
vK-6M50 vK-6P50 VK-6050
vK-10M50 VK-10P50 VK-10()50
NOTES: t) The designation of H before vK (i€. HVKI dsnot€s that the circuit braaker unit
was assembled in the USA using domestic and foreigri components. All
' relErgnces to modal numbere in thie manual will be by the numbets following
the VK- and HVK-.
2l Thi! manuel waB writtan lor tha Toshiba typ€ form circuit brsakers listed on
thi$ page used in coniunction with Toshiba cells. For circuit brsek6rs utilized in
the convereion of othsr equipment, a supplemental i struction manu8l Should
be obEain6d from lhe conversion manufacturer.
lssued 2/95. Supemedee GF077401-A Deted 12194.

N4av. 31 2012 9: l5AlVl t0, )tu r, 1
INTRODUCTION Page i
READ THIS MANUAL carefully for imponant information about safety, handling, installation,
operation, maintenrnce, and parts replacements for spring-operation-type. VK and HVK series
vacuum circuit breake6.
This manual and all accompanying drawhg$ should b6 consid€r€d a pgrmanent paft of the equlpmgnt.
They should be readily available for /eview and reference at all timos.
DIMENSIONS shown in th€ manual are metric and/or their 1,.S. equivalgnt.
INOUIRIES should be addressed to;
Field $ervice Department
Toshiba lnternational Corporation
13.l31 West Littls York Road
Houston, Texas 77041 USA
Telephone: 1713't 466"0277
[phone]
(800) 527-12O4 (Cenada)
Fax: |'7131 466"8773
ll[ffiFiliilC-l uaa only Torhtba-authodzad rBptacamont padr.
nWiF-MiEl tiris equipment is de3igned and buitt in accordance with opptioable sttetl
etandqrds in 6l{sct on ttle date of manutactu.c. Unautho.hed modElcadonr wlll vold wattalty
and cEn ra:uh ln rwera lnJury, daath and propsrty dnmag6, Do not mak6 nny moditicadons to
thi8 ecpipmefi without tho written tpproval of Toshiba.
6 TOSHIBA INTEFNATIONAL CORPORATION, 1 995

t!1ay.31.2012 9:15Att1 No. 1510 P, 4
TABLE OF CONTENTS Page ii
SAFETY
RECEIVING,STORAGEANDHANDLING ,........,,4
Receiving and Unpacking .........4
Acc€pl6nca lnspection ,...4
Lifting for Handling and Moving " " ' 5
Stotage, ..'.". t,
lnspection During Stolage ........- 6
GENERALDESCRIPTION .,..,...7
gafety Deviceg ........' I
lnterlock Lever , , ........9
Sell Coupling Type Secondary (Csntrol Circuit) Disconngcts , . ' . . 10
INSTALLATION .,..., 11
Service Conditions .... ..'...... 11
Bating.. ...... 11
Lifting tor lnstellation ',.' 13
Using the Portable Lifter ...'.'.'. 13
Moving the Circuit Breaker in the Cell .-.....15
PRE-ENERGIZATION CHECK ..,, 18
General , .. ... . 18
Elactrical Checks . ...... t8
oPERATtoN ..,,".., 19
Manual Operation..... .'..'.". 19
Electrical Op€ration . ' ... 20
Controf Ckcult Oparation ..,. '., , ' ZO
Closing Sequence..... ..'.20
Charging Sequence '.......20
Tripping (Oponing) Saquanca ....."' 20
Mechanism Operation ....25
Closing . ,....... 25
Charging .......' 25
Tripping , ....... 25
Trip Frae .""...25
MAINTENANCE ...,,, 26
Maintenance Progtam .... 26
Maintgnanca R€cord , .," 26
Servioing Equipment ..... ?7
lnspaction and Maintenance Type3.. '..'.'.2e
lnspgction and Mainlenanc€ lnterv8ls '. ', ',. 30
Wipe Measutement ... ...... '.. 36
Vacuum Chack , ..-...' 37
Troubleshoothg Guidelines .,"".41
Replacement of Parts . ... 44
Auxiliary Switch, "'.'....45
Closing Coil and Trip Coil , .. .... ' ' ' 47
Control Citcuit Board . ..'..4S
Control Circuit Board Fuse '."' . . .. . 51
Feplacement Pans List ... 53
CoNVERS|ONS . ^.... 54
WARBANTYandLIMITATIONOFLIABILITY ..'..'' 57

tvlav 31 2012 9: l5Al!1 [1o 1530 P5
SAFETY Page 1
IITJIPO RTAI{T MESSAG ES
R€ad thls manual and follow lt3 Instruotlons. Signal words such as DANGER' WAFNING
enrf CAUTION will bB lollowsd by imponam safety information that must be catafullv
reviewed.
lndjcates a situation which will tesult in death, serious iniury, and
s€vsrB propeny damage if you do not follow instructions'
|[mmiilG"l M66n3 that you might be seriouslv iniured or killod if you do not lollow
r-:'-J instructions, S€vste property demage tflight also occur.
A CAlmOil : Mean3 that you might be injured if vou do not follow instructions.
Equipment damage might elso occur.
NOTE: Gives you nelpful informallon'
SAFETY CODE$
Comply with all applicable state and local codes' Unless $upsrssdad by etate and local
codei, adhere to all appliceble ANSI, OSHA, IEEE, NEMA and National Eteclrical Cods
{NFPA 70) and'Maintenance ProcEdures in NFPA 708 standarde. This includes sl6ndards
penalnlng to the manufaetu.e, a88embly, installation, grounding, maintananca, conversion,
lating and ope€tion of:
1 ) Metehclad switchgear
2) Power swltchge8r
3) MetaFclad snd stEtion typg cubiclE switchgsar
4) AC hiqh voltagB circuit braakers

llav. 3I 2012 0, 15AM No. 1530 P6
Page 2SAFETY
READ ALL SAFETY SIGNS
Safety slgns are placed on ths circuit
breaker for your safety and imtruction.
BeEd and follow tha instructions in this
manual and on tho safety signs locatod
on rhe equipment.
Keep the sefsty sign viaible and in good
shape,
Never removg, damag6, or covat any
safety sign.
ElDltagr|rtnfilrlclElrltr
ictllim. eemre orlanrrr lta E[Et
H^TNHEH'IE
r ArN.irfit' m,tla
tFGaHtE
. tt clal tFq-llll
i-HirdE
. DEEdtgqt trLrd
arqrc(ilt* Hlf,ln*f
a irll trdrlecEtd
hrb
. ffi lrrildr,iq ntt
!.ltffilr
*flm rrrlt r[ ffiEF]a !!
cltlrdhLilriFtLE
. btuhht!5ttrttll
dy-tCrttlUEl*'E
trf rrE t&r'ClUfiFa
'd.aEr,
. orF tFtt cF#tbr
tdfr
FEAD tt€tnrJdflol{ t&lluAl BEFoRE ATTElptlE THE FoUOlltttt pfiQOEltJfiES
uAr{rAl oFEE s PmcEDt'Ae
To $lA*E stf,Negl n .g chlrliE f5t* toqrl cevst crd hE
(t1. ii! ;htd. bro Soqbr OF..fte.
BtEa -l} t& tlF fd Dcttt unfl a cH b tLtlll
erd sEtla rr&or R.le ofiAndD g.lqr).
Rd€ ldt{e Fdt r'
ilttHr l5t rtd R€tbat 8o.ld Csnr'
1rO.La!!FSREAIGRT Fllhdlrat,(! G eJfllll Ctqi Es'b.lre
\irf, Tllql R€rd ctoeED (is0 {td OlSCt{AffiED 0rn'}
7o OPB{ BRE xE t h.lr A. TflrP gJftSL Ch * hdr..li*dor lr
Thrl h @sl (Glifit rd ol8C+lrhOED $nr.!
lfiftE fhe Folci'rn C||t R€sa h Ef,+trsr Olttqg.
o.dgidl * rlE cLodta gt tTct{ lllfi 1'lr€ drEi Er*. clllg4r'
aj-r!+*n Oa The cr.CElcc BUTllll Yflt llro wTEH.rffi lE\rEB Br*rr
D.i.doi Cl Tlta dr6 E gufltil !\{l lltelilP Jtlofi D'F t'c5'
NsnLLAfn chElaol/^l.j
ITFEATOB t{$i FFd OtSfi RaED (!lt{t} Atld OpBl GlE€o) 8.aort lttc
gr*. Cfi tf mH lllo cjr Fentle<t lErnn Tll. Ocl (ffi).

N4av. 3I 2012 9: l5AlV No 1530 P, 1
gAFETY Page 3
OUALIFIED OPERATORS OilLY
only quslified persons are to lnstall, op€rate or service this €qulpmefi accordjng to all
applicabls codes and established safgty practic6s.
A quallfle d person must:
1 ) Getelully tead th6 entlte iGtruction tnanual.
2) Be $killed in the installation, construction or opgration of the Equipment and awa/e Ol
the hazards involved.
3l Be lrainad and suthorized to $sf€ly energizB, de-enetgize, clear, ground, lockout 8nd
tag circuits ln accordEnce wilh estSbli$hed sefsty practice.
4) Be trained ahd Suthorized to parform the service, maiftenancs or rspair of this
aquipment.
5) Be trained in the proper care and use of protectiva equipment such as rubber glove$,
hsrd hat, safety glassos, face shield' flash clothing, etc. in accordance with
astabllshBd practlces.
6) Bp tr9ln6d in rendering first aid.

Nlav 31. 2012 9:15AN4 No. 1530 P. I
Page 4RECEIVING, HANDLING AND $TORAGE
RECEIVIIIo AND UIUPACKING
The clrcuh breqker unite are aubjected to
fEctory production testlng prlor to being
packed and shipped.
ACCSPTAilCE IiI$PECNON
Confirm that the circuil breake, unit is
oompleta, conect as :pecified and undamaged
trom shipment 6nd handling.
Upon recelpt of the equipmBnt, do the
following:
1) Make an lmm€diat€ ircpeclion for damag€
which miotx have occurred durlng
Ehipment (Fig. 1 ). lf damage is discove.ed,
it should be notad with th€ carrier prior to
accepting the shipment if p+asibla.
2) Carelully unpack tha aquipmant sufficiently
to cheok for missing pens or concealed
damage-
3l Keep the equipmefi upright (Flg. 2).
A CAltflOil r ltl.vat hy th6 esripmam on lia
elde or upslde dwn. Tlf$ may cause
equhmrm drmrge to occur.
4) File a claim with the csrrier for $ny
damaggd or missing itsms €nd immediately
notily the neaiest Toshlbe lnternational
Corporation representative.
IZffil oo nor i6ral or en€rllze
eqrlpmEnt trat has bcan *rflagsd. Drmegod
iquipmilt can fdl drdng operadon, tctultidg
in fire snd exploEion.
5) lf the cucuit braikor haa baen utilized for
rhe conveFion of olher equipmert, see the
CONVERSIONS S6etion ot this manual.
Cofifirm th€t yo{lr conver8ion msnufecturer
is in compliance with thi$ section.
Flg. t lnspedl for Damaga
Fi!. Z Thb Circuit Brdsk8r Bhould
Uprighr kept

llav.31 2012 9:16AM No 1530 P9
RECEIVING, HANDLING AND STORAGE Page 5
LIFTINd FOR HANDLING AND MOVING
When handllng and movlng the circuit braskdr,
rhe suspension technlques shown ln this
saction may b6 used. When installing or
removing th6 circuit braaker from the csll
above floor level, refer to the "Lifting For
I nstaltation" instructions id the I N$TALLATIO N
Sgction of thie mpnual,
ffmnlGl Do nor atbmpr instattation of
the clrouit bteaker above floot leyel u3ing the
lifting m€thod8 d€scdbed ln thls section.
Alway$ u$e e Tolhibe Portsbla Llfter for
lnstalladon,
Care and csution should ba usad when
handling the circuit breaker units to avoid
damage to tha aquipment and personal injury.
Always keep the circuit bf€aker in e genBrally
upright position.
ACAUflON ! when littlng, the oircuit
breekar vvlll tllt rllghtly backwards. Stand clear
of the bteake. whon lifting or you may be
inlured,
Always use lifting equipmant suilable for
handling ths weight of the unit. The capability
of the llfting equipment to handle the size and
weight of the ciicuit br6aker should be
confirmed prior to lifting,
A CAlmON I Attempting to menually lift
the circull bruakar csn caure ledous injury or
equiprro t damtge. Alwey: u:a eultoHe llftlng
equJpmerTt,
FlE. 3Lifting the Cirouit
Hooks. Breaker with Lifting
Fig. 4 Circuit Br6ehsr Tihing Beckward whils
Lifting.
WHEN LIFTING:
6M32A
6P32A
6M4OA
6P4OA
8M4OA
8P4OA
10M25A2
10P25A2
10M40A
10P40A
Lift ihe circuit breaker as shown ih Fig. 3 end
Fig. 4.

li1av 31 2012 9: l6AlVl Itlo, 1 13 0P t0
WHEN LIFTING:
6M50
6P50
6050
8040
Lift the circuil breaker as shown in Fig. 5.
The circuit braak€r ha,B a eet of
lifting plates as accessories. Ufting
pletes must be removed before
atterfiptlng to lnstall into c6ll.
WHEN LIFTING FOR INSTALLATION:
The VK & HVK Gircuit Breaker Types listed ln
thi$ manual us€ the procedure described in the
INSTALLATION section-
STORAGE
lf the circuit breaker is to be stored lor any
length of timB prior to installation, the
following precautiotar should be taken:
The original packing should be restor€d, lf
possibl6.
Do not subject th€ €quipmBnt to moisturB
or aun rays. srote in oool, cl6an, and dry
locetlon.
Place a dust cover over the circuit br€ak6r
packaging to prot€ct against dift and
moisture.
$tote in an upright Position.
INSPECTION OURING STORAGE
Rouine scheduled inspection ls nec6s34ry if
storage iE lor En extended period. The dlit
should b€ checked for condensation, moi$ure,
cottogion, and vermin,
ftior to instEllation, the circuit breaker should
be crrefully 6xamined lor ovidence of phy$ical
damage. cotto$ion, or othsr doteaioration.
Hof6r to thc PRE-ENERGIZATION ssctlon of
this menual.
The MAINTENANCE sEction of this manual
describes vatious typ$ of impsc.tiong
recommsndsd for this circuit breaksr durlng
the operstlon P€riod.
REGEIVING, HANDLING AND STOHAGE
t1
10040
10M50
10P50
roo50
NOTE:
Fig. 5 Lifting Circuit
Plat68, with Lifting
1)
2t
3)
4)
Fig, e Circuir Breekef S$.ag€

lvlav. 31 2012 9: 16AM No 1530 P. tl
GENERAL DESCRIPTION Page 7
The Toshiba VK & HVK Serias medium voltage
circuit breakers in thi6 manuel are dasigned for
applica offi at utilization voltages ranglno from
5 kv to 15 kV and intorrupting ratings ranging
from 250 MvA to 1000 MVA. The circuit
breakarg are inlended for use only in metal-clad
dlstriburion switchgear and other lifitited
applicttions.
Fig. 7, Fig. 8, and Fig, g illust.ate and identify
various component8 of the circuit b'eaker,
COMPONENTS LEGEND:
1 ) Handle lor moving circuit breakar
2l Secondary disconnects
3) Rsting intBrlock pin
0M/P/oF0
8040
10040
10M/P/o50
4l lnterlock lever
5) Whssl
6) Primary disconnscts
7l Barrier
Bl Rscking scrsw
9) Vacuum interrupter
1O) Flexible conductor
11) lnsulatsd opsration rod
1Zl Bating interlock plat€
6M/P32A
6M/P4OA'
10M|P25A2
10M/P40A
8M/P4OA
UBE only g€nulne Toshiba
replacBm€nt parE and accatsod68. lmproP€r
componEl'tr could cauee the citcuit breaker to
malfunction.
Fis. 8 Sids View
Fio. 7 Front Viaw
Fls, I Rear View