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~~-~.~~ ~ 31'R "l1ACl) "WTcR~-226011Tele./F'ax :
0522-2452581E-mail:[email protected]
•
'., ' ' ... Government of IndiaMinistry of RailwaysResearch,
Designs &. Standards
~ ~ ....Organization,LUCKNOW- 226011
No. EL/ 1.2.9.1 Dated: 28.12.2018
Principal Chief Electrical Engineer,All Zonal Railways &
CLW.
Sub: Minutes of Performance ReviewMeeting of 180 KVA
Static Converter held RDSO on 21.12.2018.
***The minutes of performance review meeting on Static Inverter
held at RDSO
on 21.12.2018 is enclosed herewith for kind information and
necessary
action. Compliance for the items mentioned as action plan may be
sent
quarterly. Data in excel sheets. (already circulated earlier)
with updated
position upto Dee 2018 may also be sent by 15th Jan
2019.~~'lP\to
(Aseem Kumar)Encl: As above for Director General/Elect.
Copy to:
1. Secretary (Elect.), Railway Board, Rail Bhawan, New Delhi-
110 001
- Kind attention: Sri A.K. Goswami DEE/RS/Railway Board.
2. M/s. Autometers Alliance Ltd., C-63, Sector - 57, Noida - 201
307
3. M/s. Siemens Ltd., Industry Sector, Mobility Division, I MO
RS IS, 5th
Floor, R&DCentre Building, Kalwa, Thane, Mumbai - 400601
4. M/s. Medha Servo Drive Pvt. Ltd, P-4/5B, IDANacharam,
Hyderabad - 76
5. M/ s. Hind Rectifier, Lake Road, Bhandup (W),MUMBAI- 400
0785.
6. M/s.ABB Limited, Survey No 88/3, 88/4. Basavanhalli Kasaba
Hobli,
Nelamangala Taluk, Bangalore 562123.
- for kind information and necessary action please.\ ~:\Ib
~~,\i:(lP
(Aseem Kumar)for Director General/ElectEnd: As above
mailto:[email protected]
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Minutes of Performance Review Meeting of 180 kVAStatic
Converter
held at RDSO on 21.12.2018 on 22.12.2018.
Present: As per list enclosed.
1. At the outset PEDSE IRDSO welcomed all the participants from
railwaysand industries for the meeting on 180 KVAStatic converter
at RDSO.
180 KVASIVs which are available in conventional locomotive will
being
services for a decade and more. Therefore, proper attention is
required
from Railways and Suppliers for its maintenance. It is also
informed that
for new procurement of SlY, Railways have to follow the
guidelines issued
by Railway Board vide Railway board's letter no. 2018 IElect
(TRS)441 I 5pt 1 dated 28.08.2018 and all the new procurement of
SIV by railways
shall be done as per revised specification no. RDSOj2018jELj
Specj0140
Rev 0 dated July 2018. Consequently any replacement of old SIVs
has to
be with SIVas per revised specification.
The compliance report of previous meeting which was held at
CNBhas not
been received. Only ELSI Anguli ECoR have sent the compliance
report.Other railways are requested to send the compliance report
timely. Firms
are also advised to send the feed-back and compliance of the
work done as
mentioned in MOMs of both the meetings. Only Mj s. Hind
Rectifier sends
the performance report regularly.
Railways are requested that the consolidated failure data upto
Dee 18
(April 18 onwards) should be sent to RDSO by 15.01.2018 in the
excel
sheet formats as already circulated.
2. Performance review:-
Discussions were held on progress of modifications and failure
analysis
presented by RDSO based on the data taken from the sheds which
are as
follows:-
2.1 MIs AAL
SN Subject Action to be taken by firm & RailwaysjRemarks
a) Cooling Fans: 1. Zonal railways have reported that1.Reasons
of cooling fan there are no failures of modifiedfailure were mainly
due to cooling fan (Havells make of 02 HP).bearing failures. Firm
has All the units are In service.
MOM lRl??l 70f SIV at RDSa
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developed new designedcooling fan (Havells make)and validated m
fieldtrials. {Firm supplied 184units of (Havells make)and supplied
168 KIT torailways Total - 352 units.RDSO also issuedModification
sheet no.RDSO/2016/EL/MS/0449 Rev '0' dated30.03.2016 for
providingmodified cooling fan.
The maintenance schedule andreplacement of bearing of
Havellsmake of 02 HP motor has not beenprescribed by firm. This IS
to besubmitted by firm.2. ELS/BZA reported Havells makecooling fan
with 1 HP motor are alsoreliable and reported no failures.3. In the
meeting at ELS/TKD It wasadvised by RDSO to complete theconversion
of ZIEHL-ABEGGcoolingfan to modified one so that thefailures due to
cooling fan can bereduced. Railways are requested toexpedite
conversion of ZIEHL-ABEGGcooling fan to modified one and givefeed
back to RDSO.
4. Firm reported that apart fromOEM supplied there are
locallymodified cooling fan for which it isdifficult to work on
AMC. In theminutes dated 21.03.2018 for themeeting held at ELS/TKD
dated16.03.2018, it was decided that theunits which are having
local modifiedcooling fan may not be taken in thescope of AMCbut
firm has to provideproportionate reduction in the cost ofAMCon such
SIVs.
b) GDU card:GDU card of inverter andbattery charger
1. Failures of GDU card are still takingplace.
2. Firm has agreed to repair /rehabilitate failed GDU cards
ofinverter and battery charger duringAMC. It is decided that the
repair /rehabilitation of failed GDU cards ofinverter as well as
battery charger willbe done in phased manner in SlVsunder AMC and
will be completedwithin SIX months. OEM IS beingadvised to submit
the plan to thisoffice so that concerned railways maybe
intimated.
MOM 181221 70f SIV at RDSO
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c) Churning Fan 1. Firm has not given any feedbackas decided
during last meeting. Firm isagain advised to study the case
andsubmit the feed back to RDSO by15.01.2019 for needful.
d) K -2 and K-3 model ofSIVs
1. About 100 units are in service. Itis advised that the loco
sheds where :older versron SIV exists and hascompleted their codal
life, same may beplanned for replacement by 2 X 130KVASIV.
2.2 M!s Siemens
SN Item Decisions! Target
a) Indigenized Batterycharger:Indigenized Battery chargerfailed
due to failure .ofrectifier module .
1. Railways reported that the failures inIndigenized Battery
charger haveincreased even after this modification.In some cases
battery chargingvoltages shows 104V - 105 V and locobattery is not
properly charged andbattery became dried up.
2. M/ s. Siemens have investigated thecase and they have
concluded that themajor problem is in voltage setting.Firm is being
advised to advise theirservice engineers to verify the
voltagesetting in every unit during scheduleinspection during
AMCattention.
3 It IS decided m the preVIOUSmeetings that K -8 contactor is to
beremoved j bypass m all types ofbattery charger of Mj s Siemens
asper RDSO issued Modification sheetno RDSOj2016jELjMSj0452 Rev
0dated 29.04.2016. It is decided thatfor remaining work in K -8
contactormodification, firm will assist shedsto implement the
modification in theAMC awarded units where in thematerials are duly
supplied by thesheds.
MOM 181221 70f SIV at RDSO
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b) Input isolatorProper locking of inputisolator jRemoval of
inputIsolator (to be done by shedfor SIV's supplied upto2009 where
isolator exists)
1. It is recommended by RDSO that
c) Other points
the input isolator which exists in SIVsupplied upto 2009 is. to
be properlylocked, or removed. This modificationhas not been
completed by railways.
2. It is decided that for remaining workm Proper locking of
input isolator jRemoval of input Isolator (if any), firmwill assist
to implement themodification in loco shed.1. ELSj ET reported that
there ISrepeated failure of input voltage low. Asa precautionary
measure, U -1 sensorwas replaced and problem resolved.Mj s. Siemens
is advised to look intothe matter and submit action plan sothat
such failures can be eliminated.
2.3 M/s. Medha Servo Drive
SN Item Decisions/ Target
a) TDC-IFCard:The tripping of SIV
1. Loco sheds reported that even aftermodification of TDC_IF
card, the failuresof TDC_IF card still persists. It is advisedthat
during AMC attention the TDC_IFcards are to be checked. If any
problemnoticed the cards are to be replaced. Firmstated that the
failures are due to overaging of capacitors in TDC_IF card. In
themeeting held at CNB, RDSO advised firmto check and replace the
capacitors ofTDC_IF card during AMC attentionwithout fail.
b)
occurred due to sensmgover voltage of OHE thoughoHE voltage was
belowspecified limit.
dvI dt capacitors 1. The failures of dv/ dt capacitors
stillpersist as reported by Railways. OEMstated that they are
replacing capacitorswhere capacitance values are less than20% or
have service period of 4 to 5years.
MOM 181221 70f SIV at RDSO
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c) Card failure
2.4 M/s. Hind
SN Item Decisions/ Target
a) QCONtimer card: 1. The firm is advised that remainingunits
(04 no) should be modified by15.01.2019.
b) Crow Bar Thyristor: 1. ELSjBNDM stated that cases areThe
problem was unwanted there even after modification of EAU.firing
pulse to crow bar The message of DC link high voltage wasthyristor.
Firm introduced an seen in VFD panel and sometimes SIVenergy
absorption unit. got tripped with message of De link high
voltage. This to be rectified. Firm ISadvised to visit
ELSjBNDMjSER toinvestigate the problem and make jointreport and
action plan.1. Railways reported the failures in A702 & A-703
card have reduced asproper maintenance are being carriedout during
schedule inspection.2. Firm reported that the mamcauses of failure
of cards are due todust accumulation in cards. Thefailures have
reduced as cards areproperly cleaned during AMC.
SN
PEe card
2.5 MIs ABB
Item Decisions/ Target
a) 1. ELSj JHS reported that there aretwo failures of PEe card.
One failure isunder warranty. Firm reported that thefailure IS due
to erratic operation ofrelay.2. During previous meeting at CNB
itwas decided that defective PEe card ofELS/ JHS are to be
investigated andsubmit report to RDSO within onemonth. As no report
has been receivedso, firm is again advised to investigatethe causes
of PEe card failure.
MOM 181221 70f SIV at RDSO
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Cooling fan:Mainly there are failuresdue to jamming
ofbearings.
1. Firm stated that the cooling fanb)bearings are failing after
a service life of04 years and advised that they are to bereplaced
after a service period of 04years. The bearing number has
alreadybeen circulated vide MOM of CNBmeeting dated 27.09.2018.
3.0 Other points noted during meeting:
3.1 Replacement of bearing should be done as per the
recommendation of
OEM.
3.2 The OEMs of Static converter are advised to develop 2 X 130
KVASIV
and register in RDSO online vendor registration portal.
3.3 For review of the clauses of AMC of SlY, Railways are
advised to
submit the additional clauses to be included in SMl to RDSO, so
that
it can be reviewed and improved further.
3.4 Zonal railways are advised to finalise the AMC at the
earliest for
improving the reliability.
The Meting concluded with vote of thanks to chair.
MOM 181221 70f SIV at RDSO
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(B)List of participants:-
SN Name (Sj Shri) Designation Railway
1 O.P.Kesari PEDSEjRDSO RDSO2 Aseem Kumar DSEjPn RDSO3 P.
Raviteja DEEjTRSjBZA SCR4 N.S.Rongala DEE/ELSjED SR5 Atamjeet Singh
DEEjTRSj ANGL ECoR6 Abhisekh Singh DEEjTRSjJHS NCR7 Shivam
Srivastava AEEjTRSjCNB NCR8 P.K.Sharaf AEEjTRSjBIA SECR9 Mohan
Choudhary AEEjTRSjBSL CR10 Deepak Kumar AEEjTRSjMGS ECR11 R.C.Meena
AEEjTRSjBL WR12 A.K.Rana AEEjTRSjHWH ER13 Kirtesh Meena AEEjTRSjNKJ
WCR14 Sukant Singh SSEjELSjBZA SCR15 S.K.Das SSEjELSjSRC SER16
Mukesh Kumar SSEjTRSjLDH NR17 Abhijeet Kumar SSEjTRSjBKSC SER18
Prasant Kumar SSE19 P.C. Sanu SSEjTRSjNKJ WCR20 R.K. Bhagat
SSEjTRSjTATA SER21 Dinesh Kumar SSEjELS/MGS ECR22 S.R.Senapati
SSEjTRSjJHS NCR23 Ambuj Sharma SSEjTRSjCNB NCR24 Sandeep Verma
SSE/TRS/CNB NCR25 D. K.Ojha SSEjELSjBSL CR26 Pradeep Gupta
SSEjTRSjBRCY WR27 Sudhansu Mishra JEjELS/BNDM SER28 V.K.Salvi
SSEjTRSjBL WR29 K.M.Sumesh SSEjELSjED SR30 P. Suresh Kumar
JEjELSjED SCR
MOM 181221 70f SIV at RDSO
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31 Dr. Akther Alam AAL32 Sumit Wahi AAL33 Ankur Tiwari AAL
34 Sudhanshu Pal AAL35 Rajesh Srivastava Siemens36 Manu Garg
Siemens
37 V.K.L. Swamy Medha Servo Drive
38 A.N.V.Rao Medha Servo Drive
39 Shivendra Singh ABB40 Deepak Aher Hind Rectifier41 Himanshu
Shukla Hind Rectifier
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MOM 181221 70f SIV at RDSO
