Daily Updation File - October

Sr. No DATEEquipment Tag No with

Description

START

TIME

TOTAL

TIMESTOP TIME kw

258 1-Aug SCH Crane 10:00am 12:30pm 2.5hrs

259 2-Aug 10RAL-01b 3:00Pm 3:15PM 15 mins 1.5

260 6-Aug 3BF-01C 3:00Am 3:15Am 15Mins 22

261 6-Aug 7P-02 10:10Pm 10:20Pm 10Mins 1.1

262 6-Aug LDB-6 11:20Pm 11:35Pm 15Mins

263 7-Aug 5AG-05F 11:30PM 1:00AM 1hr 30 mins 22

264 8-Aug Pb Area EOT 2:45Pm 3:00Pm 15Mins

265 8-Aug LDB-12 6:30Pm 6:35Pm 05Mins

266 9-Aug 7AG-11 10:30AM 10:32AM 2 Mis 1.5

267 11-Aug 7AG-11 10:00Am 10:05AM 5mins 1.5

268 11-Aug 7AG-11 2:30Pm 7:30Pm 5Hrs 1.5

269 12-Aug 7AG-11 7:15Am 9:00Am 1.5Hrs 2.2

270 12-Aug 3AF-01 6PM 7PM 1 hr 75

271 12-Aug 10AG-02 11:30PM 11:55PM 25 mins 45

272 13-Aug 7AG-11 1:50pm 1:55pm 5mins 2.2

273 14-Aug 8P-08D 09:00am 10:00am 1 hr 75

274 18-Aug 5P-04E 7:15PM 7:20PM 5 mins 22

275 19-Aug 8FDS-03 9:00Am 9:15Am 15Mins

276 20-Aug 10P-01A 1:40pm 1:50pm 10 MINS 132

DAILY UPDTION FILE OF LT DRIVE

277 20-Aug 10P-01A 2:30Pm 4:30Pm 2Hrs 132

278 21-AugTailing Thickner day

tank agitator9:15am 9:45am 30MIns 1.5

279 22-Aug 6P-09A 10:15am 10:30am 15 mins 75

280 22-Aug 6P-09A 7PM 7:30PM 30 Mins 75

281 23-Aug 7AG-11 9:05am 9:10am 5mins 2.2

282 23-Aug 6P-09A 7PM 7:30PM 30 Mins 75

283 24-Aug 8P-03A 7Am 7:05am 5Mins 7.5

284 24-Aug 9P-09B 11PM 11:05PM 5Mins 18.5

285 25-Aug 3RF-01B 3AM 3:05AM 5Mins 9.3

286 25-Aug PB Area Crane - Siren 11:45AM 12:30PM 45 Mins

287 25-Aug BM-1 heat exchanger 4pm 4:20PM 20mins 0.75

288 25-Aug 8P-03A 2PM 2:10PM 10 mins 7.5

289 27-Aug 6P-17 9:00am 9:10am 10Mins 11

290 27-Aug ZN Area Crane 11:40am 12:10pm 30MIns

291 27-Aug ZN Area Crane 2:20am 2:50m 30MIns

292 28-Aug 6P-11A 22kw

293 28-Aug6.6KV Buscoupler -2

Panel-39

294 29-Aug 9P-09A/B 18.5

295 30-Aug Reagent EOT 1:30PM 1:40PM 10 MIns

296 30-Aug 10P-02B 1:35 PM 1:55PM 20mins 55

297 30-Aug 6AG-05A 8:00AM 8:023AM 3 Mins 75

298 31-Aug 10P-02B 10:00AM 10:45AM 45 Mins 75

299 31-Aug 6P-04B 3:30AM 3:35AM 5 mins 30

300 1-Sep 3RF-01 7:50am 8:00am 10Mins

301 1-Sep ZN Area Crane 4:30Pm 4:45Pm 15Mins

302 1-Sep BC-1 Magnet 6:15Pm 6:45Pm 30Mins

303 3-Sep 3BF-02B 7:00Pm 8:00Pm 1Hrs 22

304 3-Sep MLDB-2 6:30Pm 6:40Pm 10Mins

305 4-Sep 8P-07 8:00Am 8:10Am 10Mins 18.5

306 4-Sep 8P-07 5PM 5:10PM 10Mins 18.5

307 4-Sep 3F-03B 11:00PM 11:10PM 10Mins 90

308 5-Sep Hydrofill EOT 10:30Am 11:00Am 30Mins

309 5-Sep 7P-34 10:50PM 11:20PM 30 MIns 18.5

310 6-Sep Hydrofill EOT 10:00Am 10:15Am 15Mins

311 8-Sep MLDB-2 8:00Pm 8:05Pm 05Mins

312 9-Sep 3bf-02b 01:00pm 01:05pm 05MINS 22

313 9-Sep 10RAL-01A/B 6:00PM 6:30PM 30 Mins 1.5

314 10-Aug tailing Dam 5PM na na

315 13-Aug 3RF-01a 12:05Am 15:20Am 15Mins 9.3

316 15-Sep 10RAL-01B 12:15Pm 12:30Pm 15 mins 0.75

317 15-Sep 6P-10F 10:45Pm 11:00Pm 15Mins 33

318 17-Sep BC-13 tripper 11:00am 11:15am 15 mins

319 17-Sep MLDB-3 5:00Pm 6:00Pm 1Hrs

320 17-Sep 8P-02B 11PM 11:05PM 5 mins 7.5

321 19-Sep 6P-09A 2:00PM 2:05PM 5 mins 75

322 19-Sep BC-13 tripper 10:00Am 10:15Am 15Mins

323 20-Sep 6P-09A5:20AM

5:35AM

5:25AM

5:40AM5 mins 75

324 22-Sep Reagent EOT 4:00Pm 4:15Pm 15Mins

325 22-Sep BC-13 tripper 9:30Pm 9:45Pm 15Mins

326 23-Sep 9p-09b 8:30am 8:40am 10Mins 18.5

327 23-Sep 6ag-06f 11:20am 11:30am 10Mins 37

328 23-Sep 3BC-03 7:00PM 8:20PM 80Mins 90

328 24-Sep 3BF-01A 10:00PM 10:30PM 30 Mins

329 25-Sep 5AG-03E 7:00PM 7:05PM 5 mins 22

329 26-Sep 2F-01 2:00PM 3:00PM 1 Hr 2.2

330 26-Sep 10P-01B 9:15Am 9:30Am 15Mins 132

330 26-Sep BC-04 Magnet 2:30PM 2:45PM 15mins

331 27-Sep 5AG-03E 3:30Am 6:30Am 3Hrs 22

331 29-Sep 7P-12A 10:30am 11:00 30mins 0.75

332 29-Sep Zn Thickner 5:00Pm 5:15Pm 15Mins

332 1-Oct EOT- Reagent 2:25PM 2:35PM 10 Mins

333 2-Oct MLDB - 2 6:00PM 6:05PM 05 Mins

333 2-OctMain gate Tailing dam (

From HFP cable cellar)8:45PM 8:55PM 10 Mins

334 3-Oct reagent crane 8:30am 8:45am 15 min

334 5-Oct MLDB-4 11:15Pm 11:30Pm 15Min

335 7-Oct 8P-01B 1:00Am 1:10Am 10Mins 5.5

335 7-Oct 3BC-01 2:55PM 3:20PM 25 Mins 110

336 7-Oct LDB-22 6:30PM 6:3PM 5 Mins

336 8-Oct reagent crane 9:30am 9:45am 15 min

337 8-Oct BC-13 tripper 11:00am 11:15am 15min

337

338

338

339

339

340

340

341

341

342

342

343

343

344

344

345

345

346

346

347

347

348

348

349

349

350

350

351

351

352

352

353

353

354

354

355

355

356

356

357

357

358

358

359

359

360

360

361

361

362

362

363

363

364

364

365

365

366

366

367

367

368

368

369

369

370

tripping

current

2.8

38

2.5

40

3

3

3

5.2

185

76

5.2

40

DAILY UPDTION FILE OF LT DRIVE

225

2.5

128

151

5.2

151

12.5

37

16

1.6

13

22

40

34

92

151

120

60

38

32

32

147

34

2.8

15

2.8

51

13.7

128

128

37

75

148

40

4.8

220

40

1.6

10.4

180

Type of Tripping with reason and rectification

Effect of

Productio

n or Not

from

Electrical

side

It was not working.While checking its LT reverse dir contactor Y phase was found burnt.Replaced it

with spare on.Now working fineNo

Motor tripped on Motor Stall fault. Process dept was informed to clear the jamming before starting

the motor.no

Motor was tripped due to thermal O/L. It was reset and started again. Now running fine and taking

37A,No

Motor was showing unhealthy in DCS. While check EPB was found in healthy condition from fedder

side. It was released from our side. Now it is fine No

It was tripped due to earth fault. It was reset and started no tripping occur further. Now running fine No

It was tripped due to earth fault. Trip value 3A, set value 500mA. Motor windings found burnt.

Motor was replaced with new motor kept in MPP maintenance bay. Motor running fine drawing 28-

30A. Feeder was also replaced as MPCB relay contact was not proper.

EOT was not working, while check its CT limit switch was found in operating condition. After relesing

of limit switch, EoT was working fine.No

It was tripped due to fault in MCB-4 ckt. Its need to be check No

Motor was tripped due to thermal O/L. It was reset and started again. Now running fine and taking

2.8A,No

Motor was tripped due to thermal O/L. It was reset and started again. taking 4.8A, P/D is checking it. No

Motor was replaced with new gear assembly of 2.2Kw, also feeder side MPCB was changed from 4A

to 6.3A. Set valuse was 4.5A. No

Motor was tripped while check its R-Phase insulation was found puncherd and sort with star point.

After relugging of R & B phase its trial was taken. Now running fine and taking 3.7A, Set Value was

4.5A

No

Motor tripped on AI< min fault (8110). From instrumentation side 4mA signal was not properly

supplied into VFD. Problem was rectified by instru dept. now its running ok. Later it was informed

that motor speed in not increasing above 25%. VFD parameters were checked and found ok. Instru

dept is looking after the issue.

No

Motor was tripped due to thermal O/L. It was reset and started again. Process Dept is working on

that motor, Running curretn was not taken.No

Motor was trippeddue to O/L. Now running fine and taking 3.7A, Set Value was 4.5A

Motor was not running but was showing on indication in DCS. Found its R and Y phase fuses were

blown.Replaced with new fuse. Now working fineNo

Motor tripped on overload. After resetting motor was started again. It is running fine now taking 33-

35A.

Tailing thickenr agitator motor was not running. While check its neutral cable was found open from

fedder side. After connecting it properly it was working fineNo

Its R phase lead from VFD to C3 contactor was found burnt.It needs to be replaced. No

MONTH: February - 2014

Motor trial was taken after relugging of R phase. Motor is running fine and taking 63A. No

It was getting tripped due to O/L. Its setting was at 1.7A and normal running current 1.72A.Its setting

increased to 1.8A.Now running fineNo

Tripped once due to O/L.Its pump was jammed.Not started yet by P/D No

tripped due to thermal overload. Jam clearing work was going on. Later it was found that R-phase

fuse was blown away. It was replaced with new one. Motor trial was takin on No-load. It was taking

51-55A.

no

Motor was trippeddue to O/L. Now running fine and taking 3.7A, Set Value was 4.5A no

tripped due to thermal overload. Jam clearing work was going on. Later it was found that Y-phase

fuse was blown away. It was replaced with new one. Motor trial was takin on No-load. It was taking

55A.

no

Tripped due to "F009" motor over temp fault. It was jammed.After clearing of jam; running fine

taking 10.1Ano

Motor found tripped. It was reset and informed to p/d. it was started again but got tripped after

few minutes. Problem informed to p/d.no

motor tripped on thermal overload. It was reset and turned on again. Running fine now taking 7.5A no

Siren was not working, While checking it was found Repaired. Kept in SCADA Room. No

tripped on overload. It was reset and started, now taking 1.3A, set at 1.6A No

Tripped due to "F009" motor over temp fault. It was reset and started. Now running on full load 13A

with 990 rpm.No

Tripped once due to O/L.Its pump was jammed.Not started yet by P/D No

Crane got stuck in between. Its B phase current collector was out. Aligned it properly.Now working

fineNo

Crane got stuck in between. Its Y phase current collector was out (2 Times ). Aligned it properly.Now

working fineNo

Motor side abnormal sound was coming.So motor replacement work is going on No

It is in charged position for charging the bus bar for panel No-43 and Panel No-44

Both the motors tripped on thrmal overload. (took 180A)Motor was found ok, there was jamming in

the pump. After clearing jam 9P-09A was started, it was taking 20A on load. For 9P-09B emg p/b is

pressed from feeder side. Clear the shutdown if jamming issue is sorted out.

Main Hoist VFD tripped on DC Under Voltage. It was reset and started. Now working Fine. No

Tripped on Thermal Overload. Reset and not yet started. No

Trip indication was showing in DCS, While checking no problem from our side. Once reset from DCS

it was ok. Now running fine.No

Trip indication was coming in DCS, while checking feeders moving TB contact was not making proper

contact with fixed one. It was rectified, Now working fine now.No

Tripped on thermal overload. Feeder was reset and motor started again. Current was fluctuating-40-

55A. Now motor 6P-04A is running. Taking 35A on load.no

Tripped due to "F009" motor over temp fault. It was reset and started. Now running fine. no

Crane got stuck in between. Its Y phase current collector was out. Aligned it properly.Now working

fineNo

BC- 1 Magnet was checked and found ok. Its O/P DC volt is 206V. Resistance-9.5Ohm, Oil level in

conservator tank is <1/4.

O/P volt- RY- 156V, (Trafo taping set on 160V)

YB- 149V,

BR- 155V

O/P current of trafo- R-16.7A,

Y-17.2A,

B-17.7A

Trafo Temp- R Phase Limb-56.6°C,

Y Phase Limb-58.8°C,

B Phase Limb- 55.6°C

Magnet Temp- Down side-44°C & Upside-57°C

No

Motor was not running while check its BSS was found damage. It was replaced with new one. Now

working fine.No

It was tripped due earth fault in LDB-22 MCB-4. Its Ckt need to be check No

It was tripped due to thermal O/L. It was taking 48A. Problem was from mech side. On no load it was

taking 9.1A. After solving of problem from mech side, it was started again and taking 32ANo

It was tripped due to thermal O/L. It was taking 50+ A. it was stopped by pressing panel emg button.

Problen informed to process dept.no

Tripped on q>qt ( Thermal unit trip), Reset and started. Now running fine. no

Its I/C Y and B Phase from TB to Power contactor was found burnt. It was rectified. Now EOT

working fineNo

Tripped by ELR (TV - 833mA, Set Value - 100mA, Set Time - 0.10Sec). While checking motor was

found burnt, Its Terrmination Has been removed. Motor replacement wotrk is pending from Mech

side.

No

EOT crane was tripped due to thermal O/L. It was reset, also one wire was found loose from

pandent. After tightness its trial was taken now running fineNo

Tripped due to earth fault in LDB-12. Its LDB-12, MCB-4 Ckt need to be check in G-Shift. No

tripped due to fault no. 009,reset it No

tripped on 'Motor Stall' fault. Problem was informed to mech dept as motor was not moving

manually. After clearing the jam 10RAL-01A trial was taken it was running fine taking 1.4A on

31.5rpm. For 10RAL-01B VFD switch is turned off as mech work was in progress. clear the isolation

after getting conformation from mech dept.

yes

11kv supply from RDM tripped on low set overcurrent fault while taking a trial of 55kw motor after

assembling discharge valve. RDM was informed to turn on the power supply for tailing dam panel.

From their end it was reported that DO fuses got blown away twicw while charging the panel. 11kv

line inspection will be done tomorrow.

no

It was tripped due to motor over temp fault, F0009. Problem was from Mech side. It was reset but

not started yetNo

It was tripped due to motor stall, reset once but tripped again asked mech to remove jam. yes

Motor was tripped. While check its MPCB O/G cables to Power contactor was found burnt. Fedder

was replaced with spare feeder in MCC-2 3F3. Motor trial was taken running fine and taking 45A.

Also Burnt feeder cable was replaced by 35 Sq mm Cu cable.

No

Tripped on overload. It MPCB was reset and started, now working fine No

Energy Meter was changed with new one. No

motor tripped on overtemp fault (F0009). It was reset and started again but because of jamming it

couldn’t move. Problem informed to process dept.nno

motor tripped on thermal overload. Jam clearing work was going on under process dept supervision.

It was reset but not started till now.no

Tripped on overload. It MPCB was reset and started, now working fine no

motor tripped twice on thermal overload. Jam clearing work was going on under process dept

supervision. It was reset but not taken in ckt till now.No

EOT was not working while check its current collector switch was found ouside from DSL. After

inserting it proper, it was started now running fineNo

Tripped on overload. It MPCB was reset and started, now working fine

Allready tripped, reset it now healthy no

Tripped on overload twice reset it , now working fine, taking 40A. no

Problem found in panel due to loose conncetion in TB in DC outgoing supply wire to BSS. One more

problem found n NC contact of BSS No:9 ( terminal 3-4). Then it was changed with ( terminal 7-8)

NC. All problems are solved at 8:20PM

Yes

Motor was not starting. Pull cord contactor was not in picked up condition. Also at DCS pull cord

operated indication was not showing. Later both the pull cords were checked and tightened. Now

working fine.

yes

Motor tripped on overload during trial because of some jamming. Motor was reset ans started

again. Running ok, drawing 33A. Motor turned off after the trial. (MPCB aux contact is loose, replace

it if it comes out again)

no

Motor was tripped due to overload, While checking motor was taking unbalance current. So

checked on field side and found Motor power cable armor was damaged and Live wire was visible

and which is in contact with the metal frame in Cooling Tower Tank. This puncture was repaired for

temporarily.

no

Motor was not showing VFD Healthy on DCS, while check it was showing healthy on VFD panel, and

healthy signal was not given to DCS. Motor trial was taken running fineNo

one of the auxiliary contact was found loose. It was fixed properly. Also Motor-Gear box coupling

lock key found broken. It was informed to mech + process dept.no

Motor ws taking 250A & tripped on O/L. While checking motor terminal box all the phase of power

cables are found burnt. Terminal box motor winding insulation plates are burnt. So it was replaced

with new motor. After terminal connection motor trial was taken and on no load it was taking 12.2A

and on load it is taking 35.5A. Running fine

no

Motor was tripped, checked and found resistance unbalanced, drawing 0.6, 0.6 and 1.1 amp on no

load, motor was not started yet by P/D on load no

Zn focculant transfer pump was not running in local and auto mode. While check no problem was

found from our side. Problem was in Inst. Level sensor. After solving by P/D, its trial was taken and

running fine

no

LT MPCB was found tripped, Reset and started. Now working fine. no

Trpped due to earth fault( Trip value:3A), reset and started. Set values: 3A, 0.05Sec and now leakage

current:746mAno

Tripped due to earth fault( Trip value:508mA), reset and started. Set values: 500mA, 0.25Sec and

now leakage current:399mAno

crane mpcb was trriped reset it know working fine no

MLDB-4 was tripped due to Earth fault in LDB-5A. Trip Value- 3.33A, Set Value-2A. It was reset and

started, Running Fine.No

Motor was tripped due to F0009 Fault(Motor Over Temp). Its Pump was jam. Information was given

P/D and they are working on itNo

PCS was not ok. While checking PCS-5 3-4 NC was not working fine. So 7-8 NC contact is used as of

now. Working fine now. PCS needs to be change tomorrow.no

It was tripped due to earth fault. It was reset and started no tripping occur further. Now running fine no

crane mpcb was trriped reset it now working fine no

LT MPCB was found tripped, Reset and started. Now working fine. no

Name of

Shift

Engineer

Deepna

avinash

Pitamber

Pitamber

Pitamber

Pitamber

Pitamber

Linges

Deepna

Pitamber

Pitamber

avinash

Linges

Deepna

Pitamber

Deepna

MONTH: February - 2014

Pitamber

Deepna

Deepna

avinash

Deepna

avinash

Deepna

avinash

avinash

Linges

avinash

avinash

Deepna

Deepna

Linges

Deepna

Linges

Linges

Linges

Linges

avinash

Deepna

Pitamber

Pitamber

Pitamber

Pitamber

Pitamber

avinash

Linges

Pitamber

Linges

Rahman

Pitamber

Rahman

avinash

avinash

Pitamber

H.rahman

Pitamber

H.rahman

Pitamber

avinash

avinash

Pitamber

avinash

Pitamber

H.rahman

H.rahman

Avinash

Avinash

Avinash

Linges

Pitamber

Avinash

Linges

Praful

Pitamber

Linges

Linges

Linges

H.rahman

Pitamber

Pitamber

Linges

Linges

Deepna

Deepna

Sr. No DATESTOP

TIME

START

TIME

TOTAL

TIME

Equipment Tag

No with

Description

1 5-Feb - - - BM-1

2 8-Feb-14 9:15 PM 9:30PM 15 mins BM-2

3 8-Feb-14 9:15 PM 9:30PM 15 mins RM-2

4 12-Feb-14 07:30Pm 8:00Am 30Mins RM-2

5 16-Feb 9:19AM 9:02AM 2 mins

Rod Mill-2,

Blower-3

Ventillation fan

6 16-Feb 9:20AM 9:02AM 2 mins transformer-3

7 17-Feb 12:50PM 12:55PM 5 mins RM-1

8 18-Feb 9:30AM 9:40AM 10 mins Blower-3

9 27-Feb 9:30am 9:50am 20 min RM-2

10 16-Mar 4 10 pm 4 20 pm 10 mins BM - 2

11 19-Mar 4 10 pm 4;15 pm 5 mins 3c-02

12 23-Mar 3 40 pm 3;45 pm 5 mins 3c-02

13 24-Mar 10:00Am 10:10Am 10Mins Transformer-4

14 29-Mar 04:30Am 05:30Am 01Hrs 3C-02

15 3-Apr-14 3:30PM 3:40PM 10Mins Rod Mill - 2

DAILY UPDTION FILE OF HT DRIVE MONTH: February - 2014

16 4-Apr-14 2:00Pm 5:00Pm 3Hrs33Kv Incomer-1

VCB

17 21-Apr-14 8 55 am 9 10 am 15 minsBlower-2 TRAFO

3

18 28-Apr-14 9:58AM 10:15AM 17 MinsBlower-C TRAFO

3

19 30-Apr-14 12:48PM 12:52pM 4 MinsBlower-C TRAFO

3

20 30-Apr-14 2:30Pm 2:40Pm 10Mins BM-2

21 7-May-14 2:30Pm 2:35Pm 5 mins Tr-3,4

22 7-May-14 2:40Pm 2:45Pm 6 mins ball mill-1

23 10-May-14 10:15Pm 10:20Pm 05Mins RM-01A

24 17-May-14 12:30PM 1:00PM 30Mins33KV Incoming

Line

25 29-May-14 9:30am 1:30am 4hrs Rod mill-1

26 12-Jun-14 11:30am 12:30pm 1hr ball mill-1

27 12-Jun-14 2:20PM 2:40PM 20 mins Trafo-4

28 12-Jun-14 3:00PM 3:05PM 5 mins 6ag-06a

29 22-Jun-14 5:00Am 5:15Am 15Mins 3C-01

30 24-Jun-14 4:15Pm 4:20Pm 05Mins 3C-02

31 1-Jul-14 7:11AM 7:14AM 3MIns Trafo 4

32 2-Jul-14 3:15Pm 3:45Pm 30Mins Trafo 3

33 6-Jul 11PM 11:10PM 10 mins Rod Mill-2

34 11-Jul 10:15Am 10:30Am 15Mins 4 MVA Trafo

35 13-Jul 8:15AM 8:30AM 15Mins Trafo 4

36 15-Jul 10:30Pm 05:00Am 6.30Hrs 3C-01

37 16-Jul 4:00Am 4:05Am 05Mins Trafo-3

38 26-Jul 4:40Pm 4:45Pm 05Mins BM-1

39 12-Aug-14 5PM 6PM 1HR 6.6kV Incomer-2

40 27-Aug 5:00 PM 5:20 PM 20 Mins 3C-01

41 29-Aug 6PM 6PM 33kV trafo-2 O/G

42 30-Aug 9AM 11AM 2 Hrs 33kV trafo-2 O/G

43 6-Sep 10am 10:30am 30mins BM-02

44 21-Sep 9:30Pm OLTC-1

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

Type of Tripping with reason and rectification

Carbon brush size of Ball Mill-1 was very low. Its need to be change as early as possible

Trip indication was coming in RM-2. Its LRS was not healthy. Problem was in its water level

sensor. After cleaning of sensor, LRS trial was taken in local & it is fine. Since stream-2 was not

running so production loss was not occur.Rod mill-2 tripped bacause of overload fault in micom 220 relay. Rod mill was stopped for rod charging

and after few minutes it was started again. At first rod mill got tripped and subsequently blower 3(

miniler ELR fault) and Ventillation fan(micom 220 overload fault).

tripped due to phase overcurrent fault. All the agitators in PMCC-1 started drawing more current

bacause of blower-3 tripping issue.

Tripped from temp. scaner. Temp Scaner was checked and no problem was found. Its due to

malfunction of temp. scaner. It was reset and started again. Now running fine and its temp is-

DE side- 47°C, NDE SIDE-22.6°C

Process dept was planning to shift the load from blower 2 to blower 3. blower 3 was started and after

12 secs motor got tripped. Micom 220 was showing excess long start fault. Blower suction was

controlled and motor started again. Now running fine taking 43A.

Tripped due to LRS fault coz of problem in water sensor. Needs to be replaced with new one as soon as

possible

Tripped on Trip circuit 110 V DC wires loose connction on 6.6kv Feeder side. It was tightened and

started again

Tripped due to thermal overload due to improper shaft position due to which it took around 24A for

some period and tripped . Shaft position was adjusted and it started again.It took around 14-16 A and

running fine now.

Tripped due to thermal overload due to improper shaft position due to which it took around 24A for

some period and tripped . Shaft position was adjusted and it started again.It took around 18 A and

running fine now.

Tripped due to phase overcurrent fault. All the agitators in I/C-4 started drawing more current bacause

of Blower-A Emg stop by Mech. Its trip value was Ip> 0.17kA and set value is 0.7A, CT Ratio is-250/1A

V-Belts of 3C-02 were blowen so its motor connection was removed from motor TB. While opening of

motor connection it was found that its Y-Phase lug was broken. Its Re-Lug work is going on.

Motor tripped on LRS Fault. No problem found from electrical side. Possible Reason: Some person may

pressed the LRS Emg stop Button.


2P-08A (Hot water pump) feedback to DCS gone missing and in response BM-1 got tripped. Fixed and

Moving contacts of TB were checked and made clear. The same problem found in 2P-08B.

Trip circuit healthy was not coming. Its trip ckt SFU of 4A was foun blowen. It was replaced with new

one. Also it service position limit switch was not working. It is Bypassed due to unavailability of spare.

It was charged after I/C-1 line was charged by MRS. It is fine now

Blower 2 tripped on over load while making changeover from blower 3 to 2. And because of blower

trip trafo - 3 also got tripped.

Blower tripped without any indication, Due to this trafo 3 tripped on Phase over current(175A, 60 Sec).

Reset and started.

Blower B stopped Due to this trafo 3 tripped on Phase over current(175A, 60 Sec) ( Stream 1

floatation motors). Reset and started.

BM-2 VCB panel side Master relay (86) observed in trip condition. Then checked at LRS side and found

that LRS panel Emg. Stop pressed. So release it and clearnace given to Process to start the grinding

circuit.

Tripped on Ip> fault,problem was tripping of instrument air compressor,process engineers are working

to find the problem,as of now it is working fine.

Tripped due to LRS fault but no problem was found in LRS,it was reset and started .Now running fine.

Its temp scaner was showing under temp in channel no-1. It was skiped and its terminal box tightness

need to be done when RM will not running

Voltage spike arose due to RSEB power grid trip. Because of this Stream 1 & 2 HT Motors , MCC-2,4 & 5

(I>> Fault) Tripped . Reset and started. Now plant is running on Islanding Mode.

Rod Mill-1 trip coil was not getting picked. In previous shift, because of the malfunctioning of

temperature scanner, master relay was operated but motor was running continuously. All modes of

tripping checked and later spare motor feeder breaker(P-02) was replaced with Rod Mill-1 breaker.

Again there was some problem in the control ckt of that breaker so Ventilation fan motor breaker(P-

03) was used. Breakdown Time (9:30AM- 11:30AM mech b/d & 11:30AM-1:30PM elect b/d).

It was getting tripped without any indication. One cooling fan for BM was not working. Now running

fine

tripped due to Ip> fault (phase overcurrent). Blower-A was turned off by proces dept and blower-B was

started, but it was not providing sufficient amount of air. This causes overloading of agitators and as a

result Trafo-4 got tripped.

tripped due to overload twice. It was reset and turned on. Now taking 38-40A.

Motor was tripped due to thermal O/L due jam in crusher. Motor was checked and found ok. Also

motor temp is normal.

Motor was tripped due to tI Start fault. Motor was checked and found ok. But crusher was found jam.

Motor was started again after removal of jam. Now running fine

Tripped on Ip> Fault, Problem is due to over load of stream 2 cell motors, Motors are overloaded

Becoz Blower A was stopped at that time while stopping Stream - 2 . Now reset and started and OK.

Tripped two times on Ip> Fault, Problem is due to over load of stream 1 cell motors, Motors are

overloaded Becoz Blower B was stopped. Now reset and started and OK.

tripped due to false reading of temperature scanner. Channel 2 was showing 126 deg celcius.

Terminations were checked and tightened, still it was showing 102 degree celcius. It is bypassed now.

It was tripped from Aux-A type relay(Buchholz relay). Trafo temp was checked and found ok. It was

reset after removing of gas from Buchholz relay. Now running fine

Trafo tripped due to Ip> fault. Process dept turned off the Blower (Blower-A) before reducing rotors

load. Later it was reset and turned on.

Trafo 4 tripping causes 4P-01C/D + MCC-8 supply Off as well. This makes primary sump overflow and

entire reagent area motors inactive.

Motor was not getting start from DCS/Local. It was checked and found that its CC was not working.

VCB was change with spare VCB from Panel-2. Now working fine

It was tripped due to Ip> Fault. Process dept turned off the Blower (Blower-C) before reducing rotors

load. Later it was reset and turned on. Now running fine

It was tripped due to tripping of MCC-1. MCC-1 was tripped from ELR. It was reset and started again.

Now running fine

6.6kV incomer-2 feeder got tripped because of "U/V fail" under voltage fault. Its 'R' phase fuse in Line

PT was found blown away. Now 6.6kV Incomer-1 is in line.

Running Motor was stopped without any indication from feeder side and DCS Side. No problem found

while checking. Started later. Running fine now.

humming sound was noticed. problem not checked yet.

Termination tightness checked, Insulators were cleaned. Now the sound was reduced. Blowering done

for the panel.

Some body has pressed emergency just after start of motor it was reset and started after 30minutes of

as per start inhibit time

OLTC-1 was not working its ckt need to be check

Effect of

productio

n or Not

Name of

Shift

Engineer

No Pitamber

No Pitamber

yes avinash

yes avinash

yes Pitamber

No avinash

yes deepna

yes vinoth

yes kapil

yes kapil

yes Pitamber

yes Pitamber

yes Linges


yes avinash

No Pitamber

yes vinoth

yes Linges

yes Linges

No Pitamber

yes kapil

yes kapil

No Pitamber

yes Linges

yes avinash

yes deepna

yes avinash

No avinash

yes Pitamber

yes Pitamber

yes Linges

yes Pitamber

yes avinash

No Pitamber

yes avinash

yes Pitamber

yes Pitamber

yes Pitamber

yes avinash

yes Linges

No Pitamber

No Linges

NoH.Rahman/D

eepna

No Pitamber

A H.rahman 48 50

B Linges 46 48

C Pitamber 48 48

A H.rahman 48 50

B Linges 46 48

C Pitamber 48 48

A H.rahman 46 48

B Linges 42 46

C Pitamber 46 48

A H.rahman 46 46

B Linges 46 46

C Pitamber 44 44

A H.rahman 44 44

B Linges 44 46

C Pitamber 44 44

A Deepna 44 46

B Linges 44 46

C Pitamber 44 44

A Deepna 52 52

B Linges 48 50

C Avinash 44 42

A Deepna 50 50

B

C

A

10-Oct

11-Oct

3-Oct

4-Oct

5-Oct

6-Oct

7-Oct

8-Oct

2-Oct

9-Oct

1-Oct

Oil Temp(alarm-

90,trip-90)

NAMESHIFTWinding Temp(alarm-

100,trip-120)

Sr. No. DATE

Power Transformer - 1

42 42 40 40 42

42 44 38 40 40

40 42 38 38 40

40 40 48 44 48

40 42 44 46 46

40 42 34 38 40

42 44 44 46 46

40 42 42 44 44

40 40 40 40 44

42 40 46 48 48

42 42 42 44 46

40 40 38 40 42

42 40 46 46 50

40 42 40 42 46

40 40 40 40 42

42 40 48 52 50

42 42 42 44 46

40 40 40 42 42

48 52 52 50 50

42 42 44 48 48

42 40 40 38 42

48 50 48 48 48

Oil Temp(alarm-

80,trip-100)

Winding

Temp(alarm-

80,trip-90)

Power Transformer - 2

Winding Temp(alarm-

80,trip-90)

Dist. Transformer - 2Dist. Transformer - 1

Oil Temp(alarm-

80,trip-90)

Oil Temp(alarm-

80,trip-90)

46 54 60 52 52

40 48 52 50 56

42 52 54 50 52

45 62 55 35 42

50 56 62 42 44

44 48 57 38 30

48 58 62 40 32

50 54 60 42 46

46 52 56 44 48

50 58 62 42 34

52 54 62 32 34

44 56 58 38 36

46 62 54 34 40

50 54 62 34 42

42 56 58 36 38

52 58 64 43 36

48 56 60 36 42

44 50 58 38 30

46 64 56 34 42

52 56 64 39 42

40 58 52 38 38

50 64 56 38 40

Dist. Transformer - 4Dist. Transformer - 2

Winding

Temp(alarm-80,trip-

90)

Oil Temp(alarm-

80,trip-90)

Dist.Transformer - 3

Winding

Temp(alarm-

80,trip-90)

Winding

Temp(alarm-

80,trip-90)

Oil Temp(alarm-

80,trip-90)

42 44 42 44 42 42

40 42 42 44 42 42

40 42 42 42 36 36

40 42 42 45 38 38

40 40 38 40 38 38

38 38 38 38 38 38

42 40 42 42 36 38

40 40 42 44 40 42

40 42 42 42 38 40

42 40 42 42 38 38

42 42 34 34 36 38

38 38 38 40 40 42

40 42 42 42 38 40

42 42 42 42 40 42

38 40 40 40 38 40

41 42 44 42 43 44

42 42 42 42 40 42

36 38 38 38 40 40

40 40 42 44 42 42

42 42 42 42 40 42

38 36 40 38 40 40

42 42 42 42 40 42

Dist. Transformer - 6

Winding

Temp(alarm-

80,trip-90)

Dist. Transformer - 7Dist.Transformer - 5

Winding

Temp(alarm-

80,trip-90)

Oil Temp(alarm-

80,trip-90)

Winding

Temp(alarm-

80,trip-90)

Oil

Temp(alarm-

80,trip-90)

Oil Temp(alarm-

80,trip-90)

42 42 42 42

44 46 42 42

34 34 40 40

40 38 42 42

40 40 40 42

36 36 40 42

40 40 38 40

42 44 42 46

38 38 40 40

40 40 42 44

38 38 42 42

40 40 42 40

38 40 40 42

40 42 40 42

38 38 40 40

44 45 49 48

40 42 40 42

40 42 40 40

40 42 48 46

40 42 44 44

44 42 42 42

40 42 44 46

Dist. Transformer - 8 4 MVA Transformer

Winding

Temp(alarm-

85,trip-90)

Winding

Temp(alarm-

80,trip-90)

Oil Temp(alarm-

80,trip-90)

Oil Temp(alarm-

85,trip-90)

WINDING

DE NDE

CH9(SET-90) CH10(SET-90)

A H.Rahman 84 62 56

B Linges 81 57 58

C Pitamber 79 52 51

A H.Rahman 88 59 57

B Linges 81 57 54

C Pitamber 78 51 50

A H.Rahman 81 57 54

B Linges 80 52 55

C Pitamber 74 51 48

A H.Rahman 83 59 54

B Linges 81 57 54

C Pitamber 78 51 38

A H.Rahman 86 58 55

B Linges 83 56 54

C Pitamber 77 51 37

A Deepna 88 59 56

B Linges 85 58 53

C Pitamber 77 51 41

A Deepna 85 59.6 58.4

B Linges 86 57 58

C Avinash 80 53 54

A Deepna 87 59 58

B

C

A

B

C

A

B

C

A

B

C

A

B

C

A

B

C

A

B

C

BEARING TEMPERATURE(SET-

Sr. No. DATE SHIFT NAME

BALL MILL 1

MAX.(CH1-

6)(SET-110)

5-Oct

4-0CT

1-Oct

2-Oct

3-Oct

7-Oct

6-Oct

8-Oct

9-Oct

10-Oct

11-Oct

12-Oct

13-Oct

14-Oct

A

B

C

A

B

C

A

B

C

A

B

C

A

B

C

A

B

C

A

B

C

4-0CT

15-Oct

16-Oct

15-Oct

4-0CT

13-Oct

14-Oct

WINDING

DE NDE

CH9(SET-90) CH10(SET-90)

149 1410 80 63 41 42 406

146 1404 79 62 39 45 425

138 1400 75 56 34 40 432

140 1411 82 66 41 50 480

143 1405 78 65 39 43 416

142 1397 73 52 34 49 360

145 1389 79 58 40 43 423

145 1369 80 56 40 42 442

141 1349 74 80 34 47 417

138 1407 81 58 42 42 437

143 1405 78 65 39 43 416

145 1385 72 55 33 51 414

142 1391 79 64 41 44 411

139 1370 80 62 38 48 379

140 1392 74 54 34 46 412

141 1400 81 64 42 50 432

139 1388 80 63 40 45 386

138 1378 74 56 33 49 405

148 1404 80 57 42 49 355

146 1399 80 56 40 43 380

152 1395 76 57 35 44 381

139 1389 81 58 42 54 396

CURRENT

(RATED-178A)

KW (RATED-

1600KW)

CURRENT

(RATED-

59A)

KW

(RATED-

500KW)

RUNNING BEARING TEMPERATURE

ROD MILL 1BALL MILL 1

MAX.(CH1-

6)(SET-110)

RUNNING

WINDING WINDING

DE NDE DE NDE

CH9(SET-

90)

CH10(SET-

90)

CH9(SET-

90)

CH10(SET-

90)

OFF OFF OFF OFF OFF OFF OFF OFF






















KW (RATED-

1600KW)

BEARING RUNNING

CURRENT

(RATED-

178A)

ROD MILL 2

MAX.(CH1-

6)(SET-120)

BALL MILL 2

MAX.(CH1-

6)(SET-110)

BEARING

WINDING WINDING

DE NDE DE

CH9(SET-

90)

CH10(SET-

90)

CH9(SET-

90)

OFF OFF OFF OFF OFF OFF OFF OFF OFF






















BLOWER 1ROD MILL 2 BLOWER 2

BEARING RUNNING BEARING TEMPERATURE

CURRENT

(RATED-

51.5A)

KW

(RATED-

450KW)

MAX.(CH1-

6)(SET-100)

MAX.(CH1-

6)(SET-100)

RUNNING

CURRENT

(RATED-

59A)

KW

(RATED-

500KW)

WINDING

NDE DE NDE

CH10(SET-90)CH9(SET-

90)

CH10(SET-

90)

OFF OFF OFF 67 50 41 42 437

OFF OFF OFF 66 49 40 42 441

OFF OFF OFF 63 46 37 42 444

OFF OFF OFF 68 51 42 41 435

OFF OFF OFF 66 49 40 42 440

OFF OFF OFF 62 44 35 43 444

OFF OFF OFF 67 51 41 42 434

OFF OFF OFF 67 50 40 44 436

OFF OFF OFF 62 45 36 43 442

OFF OFF OFF 67 51 42 42 437

OFF OFF OFF 67 51 41 42 434

OFF OFF OFF 62 45 36 44 444

OFF OFF OFF 68 51 42 42 429

OFF OFF OFF 66 49 40 42 439

OFF OFF OFF 62 46 36 44 443

OFF OFF OFF 69 52 43 42 433

OFF OFF OFF 68 50 41 42 436

OFF OFF OFF 69 46 33 42 441

OFF OFF OFF 69 53 43 41 426

OFF OFF OFF 67 50 44 42 435

OFF OFF OFF 64 46 33 44 442

OFF OFF OFF 69 53 43 42 431

BLOWER 3

BEARING RUNNING

BLOWER 2

BEARING TEMPERATURE RUNNING

CURRENT

(RATED-

51.5A)

KW

(RATED-

450KW)

CURRENT

(RATED-

51.5A)

KW (RATED-

450KW)

MAX.(CH1-

6)(SET-100)

WINDING WINDING

DE NDE DE NDE

CH9(SET-

90)

CH10(SET-

90)

CH9(SET-

90)

CH10(SET-

90)


57 43 37 9 75 OFF OFF OFF OFF

49 38 32 13 61 50 42 40 19


56 43 36 10 95 54 56 48 20

46 36 32 10 84 52 55 48 OFF


57 44 37 11 73 57 58 46 19

51 39 32 10 62 56 57 48 OFF



48 38 31 9 43 54 56 46 OFF


53 43 36 11 57 56 54 48 20

64 39 32 9 29 54 58 48 OFF



50 39 32 9 39 64 55 45 19



55 42 35 13 81 55 54 44 19


BEARING

KW (RATED-

220KW)

MAX.(CH1-

6)(SET-100)

SCH MOTOR PCH MOTOR

RUNNING BEARING

CURRENT

(RATED-

24A)

RUNNING

MAX.(CH1-

6)(SET-110)

CURRENT

(RATED-

51.5A)

WINDING

DE NDE

CH9(SET-90)CH10(SET-

90)

OFF OFF OFF OFF OFF OFF


51 OFF OFF OFF OFF OFF




















REGRIND MILLPCH MOTOR

KW

(RATED-

450KW)

RUNNING

CURRENT

(RATED-

42A)

KW (RATED-

375KW)

RUNNING BEARING TEMPERATURE

MAX.(CH1-

6)(SET-100)

18-8-12

19-8-12

22-8-12

29-8-12

6/9/2012

13-9-2012

2/10/2012

12/10/2012

3/11/2012

6/11/2012

13/11/12

23/11/2012

28-11-12

29-11-12

30-11-12

4/11/2012

26-12-12

27-12-12

Important Breakdown list

4/1/2013

5/1/2013

12/1/2013

13-1-13

20-1-13

21-1-13

24-1-13

31-1-2013

31-1-13, 1-2-

13

1 & 2-2-

2013

3/2/2013

4/2/2013

7,8,9,10-2-

13,

11/2/2013

15-2-2013

21-2-2013

23-2-13

24-2-2013

25-2-2013

6/3/2013

15-3-2013

31-3-2013

2,3-4-2013

4/4/2013

6/4/2013

9/4/2013

10/4/2013

16-4-2013

17-4-2013

17-4-2013

17-4-2013

17-4-2013

3/5/2013

10/5/2013

11/5/2013

12/5/2013

13-5-13

14-May-13

17-5-13

18-5-13

19-5-13

20-5-13

27-5-2013

28-5-2013

29-May-13

30-May-13

8-Jun-13

8-Jun-13

9-Jun-13

11-Jun-13

6/16/2013

18-Jun-13

24-Jun-13

27-Jun-13

3-Jul-13

4-Jul-13

13-Jul-13

18-Jul-13

20-Jul-13

21-Jul-13

24-Jul-13

4-Aug-13

28-Aug-13

18-Sep-13

23-Sep-13

25-Sep-13

26-Sep-13

27-Sep-13

4/11/2013

5/11/2013

5/11/2013

9/11/2013

9/11/2013

7/12/2013

26-Feb

29-May-14

28-Jun

12-Aug-14

22-Aug

28-Aug

10-Aug

12-Sep

Ball mill 1 LRS insulator support damaged. Flash over. Total 9 nos were defective and replaced by new insulators.

Ball mill 2 LRS insulator support damaged. Flash over. Total 9 nos were defective and replaced by new insulators.

Rod mill 1 LRS checked. Insulation value was less. All the six insulators were replaced with good one.

Ball mill 1, 2 water level in LRS was lowered by 30mm to increase the gap between the insulators and water

level. For this one no 10mm hole was drilled in LRS tank.

Ball mill 1 NDE side bearing NU 230 M was replaced as the old bearing was giving scratching sound. Grease

SCH motor NDE bearing replaced. 6320 C3. Motor fan replaced with the fabricated fan brought through Adarsh

5AG-01, 5AG-02 lead agitator motor non drive end bearings were replaced with 6209-2RS bearing.

Ohline shifting work completed near SKM gate through M/s Navdurga electrical jaipur

11KV/440V 1500KVA trafo 440V side cables were removed and connected to 11KV/6.6KV/440V transformer .

Raise borer M/c power supply given .

Main V.fan greasing done. With Temp Gun. Motor DE Cover= 68 deg C , Motor body= 77degC, NDE cover=

Masibus Scanner: Channel 1=36degC, 7= 110degC, 8=78degC.

Raise borer m/c connections removed from the back of the techno office room.

Power given to raise borer m/c at south ramp.

The 33KV no 1 feeder tripped at early morning 1AM. One no 33KV PT fuse blown out at the SKM incomer feeder.

The tripping was cause due to one cable bursting and eathing at the DSC side cable tray near yard. 33KV No 2 ckt

Raise borer m/c pump connections removed in the evening as the pilot hole drilling is over.

33KV no 2 feeder cable jointing done

33KV no 2 feeder line charged after cable jointing work.

Raise borer M/c is taking 490A @ the boring of 3.5 mtr dia .

Hydro fill plant 6.6KV trafo power supply energized on 6.0PM.

SCH was giving problem. 3 core cable was laid out from oil cooling panel to float switch so that relay R1 can be

energized directly. R2 elay is kept charged through permanent short ckt.

Important Breakdown list

The mill was switched off in 4PM due to the union after the accident in lead plant.

33kv no1, no 2 circuits were taken in to ckt and 6.6KV no1, 2 feeders switched on and the bus coupler is kept off.

Ball mill 1 DE side grease cover opened. The cup was not in exact position. Grease is coming out. Ball mill 1

motor needs to be opened to rectify this fault. Fixed back as it is greasing done.

11KV/6.6KV/440V 1500KVA transformer was energized from 6.6kv mill side power. Power given from 6.6KV

Greasing done on Main V.fan 630KW

Ball mill no 1 drive end side grease which was lying inside motor approximately 7KG was removed.

Greasing done on V.fan

Capacitor reforming done in the spare inverter module

KTSelvan & Ravi went to Udaipur on official tour.

CVR ventilation fan started. It is taking 150A load.

Sh Sukhmayan was deputed for 33KV yard work at DSC

Ball mill 1 : NDE side bearing NU230E ( Fag) changed, DE side bearing NU236E( NSK japan make ) & 6320

changed.( Grease ring(oil ring in NDE side is AJ180 & this is damaged. ).

All the three new bearings are SKF make.

Ravikant Baipai sent to Udaipur for grease seal.

U/G 11KV cable joint near hoist room opened, cable re-routed through cable trench and straight through jointing

made. 8AM to 4PM. Cable charged back.

Ball mill-1: Motor DE side oil seal 200*180*15 mm fixed with juggad fittings and trial taken.

Total Mill power was taken through 33KV ckt2 @ 10AM. 33kv CKT 1is in no load.

SCH crusher complete set replaced with new crusher, new oil cooling system, new overpressure fan.

Sukmayan was deputed to DSC 33KV yard work

DGMS electrical inspector visited SKM for inspection

KTselvan Went to (DGMS ) Udaipur for submitting HT file. File was rejected as it was not in stipulated New

format.

VVIP visit took place at SKM.

Compressor house power shutdown taken from 3.0PM to 6.30 PM for jointing the VCB panels.

High mast light work completed

Went to DGMS Udaipur office on personal taxi to submit the compr house substation application.

By train on 6-7-13 went to delhi. Came back on 8-3-13 by flight. V.fan motor inspection work.

Power to south ramp given from mill side through cable. 11KV/440V transformer switched off and 440V cable

connection removed from PCC side.

BC-3 magnet coil insulation failure at bottom. Removed , repaird and brought back on 6-4-2013 for fixing. It was

tested at Udaipur and found ok.

M/s Zitron visited the SKM for additional fan requirement study.

Went to Udaipur for magnet inspection @ Sakthi elect

Mine shaft supply given from mill via feeder ie no 14 & 38

Ball mill no 2 shaft sheared off near motor coupling.

The BC-3 Magnet was put in to operation. Working OK.

SCH motor (removed from use) DE side NU320 (SKF) bearing was changed with new bearing ( SKF). The bearing

was damaged due to low grease.

ABB engr Raj kumar was attending the problem of UMC 22 for the past 4 days. MOM signed today. There is a

small problem in the UMC 22 which needs to be resolved.

Setting for trafo 3, 4 HT feeders changed from 0.7, 1.0 to 0.7, 0.4( I>0.7, t>0.4). Setting for trafo 440V incomer in

all 1 to 8 no trafo changed to ( t> 0.65 from t>4.0)

V.fan setting for 1 no channel changed from 70 to 75 deg for tripping. No1 channel temp reading jumped from

48 to 64 deg C.

V.fan AC indoor card damaged & sent to Udaipur. Now the AC is not working.

Hydro fill plant 30VDC battery charger batteries failed in B shift end. Battery ircuit opened and the system

started with 30VDC rectifier ckt without battery.

Trafo-5 was tripped due to high set over current while the CT changing work is going on. MCC 5 Both front and

Both Mill stopped at 5 pm due to water shortage.

Both mill kept shut. PMCC2 complete blowering done on backside, front side . MCC5,6,7 complete blowering

done. PMCC2 side all Breakers removed and cleaned. MCC5,6,7,8 ACB cleaned and checked.

Both mill kept shut. MCC4 complete blowerng done. PMCC1 side front , back side complete blowering done.

PMCC1 side all ACB opened and cleaned and checked. MCC4 checked. MCC1,2,3 opened and cleaned and

Both Mill started at 5 PM. Trafo 1,2,3,4,5,6 VCB Cleaned and checked.

DSC power tripped at 5PM. 33KV 1,2 power not available. 11KV power not available. CPP is down. Power is

through RSEB. Total load on mill 33KV feeder 2 is 2.3 MW.

33KV no 1 feeder PT fuse blown at SKM side.

Mill is off from 5PM.

Both mills started at 12:30 AM.

Shutdown taken from MRS for Incomer 1 (33KV) inorder to change the Line PT fuses ( R phase and Y phase).

Incomer - 1 and Trafo – 1 back panel cleaning done. Incomer 1 GO switch in 33KV Switch yard maintenance

New reservoir pump started with VFD panel after cable laying work from hydro fill plant.( job went for a week).

850 mtr cable 95 sqmm laid out. 45kw motor taking 33A at full speed.

15kw submersible pump and starter fixed in the main reservoir sump and started.

PB& ZN floculant drawing traced and changed as in the panel.

MLDB 4 at PCH fixed with digital ELR.

On trafo 4, oil leakage was found. And in there LT side bushings of Y and B phases were found loose. So it was

630kw vfan motor received with duct assembly at SKM site.

Plant - Both the streams are stopped due to the fatal accident in Mines at 4:00AM

Plant didn't run for the whole day .

Power Readings:

33KV I/C 2 : 1.36MV

Mines Shaft 2 : 362 W

Surface VF : 320.2KW

Mines 300MRI : 172KW

Mines Fdr-4 : 51.5KW

TR-7 : 24.5KW

TR-6 : 132KW

TR-5 : 115.5KW

TR-4 : 2KW

TR-3 : 93KW

TR-2 : 165KW

TR-1 : 2.4KW

Shaft Fdr-1 : 67KW

Hydrofill Plant : 60KW

Plant was Restarted at 10:30am after that incident.

4P-01C, motor windings burnt and DE side bearing was damaged. e/f was shown in vfd. New 180kw(287A) motor

was installed and ID run test was successful. Old motor details: Serial No: NAD2X 10507 TOP, Frame size:

ND3152X… New motor Details: Serial No: NAD2X 11876 TOP, Frame size: ND3152X. Old motor bearing -SKF

NU319C3, This bearing was completely dry, inner race cracked, oil seal burned, motor rotor rubbed at drive end

33kv black-out at 3pm from CPP. Entire plant was taken in load at 6:30 pm

BM-1 energy meter was replaced with spare motor feeder (panel no 2)

5AG-03G motor was replaced with newer one. Abnormal sound was noticed in motor.

Regrind Mill motor was tripped due to False alarm in Temperature scanner. Problem due to loose connection in

On rod mill-1 new 500kw motor was fixed. And no load trial was taken.

Report of no load trial KW = 24, CURRENT = 22A, WINDING TEMP = 33, DE SIDE = 33, NDE SIDE = 31 , KVA =

BC-2 tripper cable dressing done properly.Its clips got out from wire.It was fixed properly

Ball Mill-1 ( channel 5 in Scanner was showing "undr' .While checking from motor side it was found that 1 cable

On mines shaft feeder-1 (feeder no 14) CT was changed by 400/1 A. Earlier it was 250/1 A.

Hydro fill plant Transformer (6.6KV/440V) - NGR to Earthis not proper. It was rectified and started. Transformer

Feeder No 31 Charged by Mines Electrical for 212 mrl substation(mines). Micom 220 was found faulty and

replaced from spare feeder.Shutdown given.

11KV Overhead Line was tripped due to earth fault. It was checked from Mines side by Mr. Bhanu. No problem

was found. After that it was started again.

7P-02 (1.1KW/2.35A) motor was replaced. Old motor was having bearing problem.

33kV Incomer-1 shutdown was taken from MRS end. Incomer-1 & Transformer-1 breaker were turned OFF from

Since new ventilation fan motor connection was to be done in Raise Borer M/C panel, P-22 in PMCC-2 so

Shutdown was taken for trafo-5. This ventilation fan motor was installed in Mines area. Also ELR+CBCT was

change in P-22, PMCC-2. After termination of Motor connection from feeder side its shutdown was cleared.

3BC-03 ventilation fan trial taken. Taking 8.6A. ( Rating:5.5KW/9.9A, MPCB Setting:9A). Motor is runnig fine.

Tripped from temp. scaner. While check it was found that its channel no-4 showing false reading. It was skiped

and started again. Channel no 4 need to be check in ROD mill shutdown.

5AG-03G (22KW/40A) has been changed with the spare one due to some abnormal sound in the motor. Load

Trafo-3 was tripped without any indication in SPAJ-140C Relay. It was started again and no further tripping occur

mcc 4 Tripped on Io>> fault. Fault has come from from ball mill 2 inching drive winding termination weak

insulation. Also loose bolts were also found inside that terminal box. Trial was taken for that motor after

3c-02 tripped on temp scanner tripped on temp scanner channel 3. it was skipped and started. Also all HT

motor's winding temp signals were skipped in temp scanner.

3C-02 TRIPPED DUE TO THERMAL OVERLOAD.IT WAS JAMMED , SO INFORMED TO PROCESS DEPT. TO RECTIFY

Rod mill-1 Motor starting get delayed because of LRS problem. On LRS the limit switch LSR was not released

properly. Motor started after rectifying this.

SCH ASB main I/C got tripped due to ELR. Leakage current was 2.6A. Reset & started it. Faulty welding m/c

SCH ASB main I/C got tripped due to ELR. Leakage current was 2.13A. Reset & started it. Faulty welding m/c near

BC-7 head pulley connection removed.

Hydrofill MCC control supply got tripped while checking feeder 7P-34, Reset & started it.

Ball Mill-1 tripped due to fault in cooling fan. Fans supply was checked from feeder end and visually from field

side and both found ok. Ball mill started later on.

3C-02 motor V belts got broken. Motor end connections removed.

CAPACITOR BANK-2 TRIPPED DUE TO ALL FAULT, PROBLEM WAS IN ITS EARTH GO WHICH WAS FOUND

Pb area crane was not working. While checking control ckt neutral wire is somewhre shorted with ground. Work

is postponded to tomo General shift Due to unavailability of time and manpower.

Rod Mill-1 trip coil was not getting picked. In previous shift, because of the malfunctioning of temperature

scanner, master relay was operated but motor was running continuously. All modes of tripping checked and later

spare motor feeder breaker(P-02) was replaced with Rod Mill-1 breaker. Again there was some problem in the

control ckt of that breaker so Ventilation fan motor breaker(P-03) was used. Breakdown Time (9:30AM-

Paste fill Plant feeder was charged on 28-june-14.

6.6kV incomer-2 feeder got tripped because of "U/V fail" under voltage fault. Its 'R' phase fuse in Line PT was

found blown away. Now 6.6kV Incomer-1 is in line.

SCADA system was checked and started by vollkraft engineer

6.6KV Bus coupler-2 (panel-39) charged for charging the bus bar for panel no 43 and 44

11kv supply from RDM tripped on low set overcurrent fault while taking a trial of 55kw motor after assembling

discharge valve. RDM was informed to turn on the power supply for tailing dam panel. From their end it was

3BC-07 control supply is tripping frequently due to problem in PCS. It was rectified and working fine now.

Daily Updation File - October

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