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NPCF Issues

DateTimeDuration /msecEvent TypeWhat happened?Impact?
12/18/201811:44:02568Voltage Sag on Feed B

Voltage level dropped to 83.3% of nominal

Vbn 231

Vab 417

Vbc 425

Non-reported
12/18/201811:46:10451Voltage sag feed D

Voltage level dropped to 86.6% of nominal

Vbn 240

Vbc 429

Vab 425

Non-reported
12/18/201811:46:03756Voltage sag Feed A

Vbn level dropped to 72 % of nominal

Vbn 199

Vab 375

Vbc 388

LSST reported production equipment down due to the power event; Industry systems were not affected
12/18/201811:49:59954Voltage sage feed C

Voltage level dropped to 72% of nominal

Vbn 200

Vab 375

Vbc 389

Van 249

LSST reported production equipment down due to the power event; Industry systems were not affected
12/18/201812:02:40N/APower interruptionSiemens BMS report power interruption and transfer to backup generatorNon-Reported
12/18/201812:02N/ALow Voltage and low frequencymForge rack UPS 1 reported low input voltage conditionNon-reported
12/11/201818:14:28823Voltage Sag Feed B

Van 236

Vbn 225 Voltage at 81% of nominal

Vcn 246

Vab 390

Vbc 408

Vca 427

Non-reported
12/11/2018

12:27:01


747Voltage Sag event Feed C

Van 228 Volage at 82% of nominal

Vbn 248

Vab 403

Vca 417

Trouble was report by Condo rack T86, please check your production equipment at NPCF.
12/11/201812:39:27N/A

mForge UPS 1 Rack 5 UPS Alarm


Power waveform distorted (under voltage)Please check mforge for possible trouble Feed C
12/01/201816:55:46451

Voltage Sag

Feed B

Voltage sag to 88.9% of nominal voltage for 207 msec

Van 246

Vcn 248

Vca 417

Non-reported
12/01/201817:01:3652

Voltage Sag

Feed C

Voltage sag to 88% of nominal voltage for 52 msec

Van 244

Vcn 248

Vca 415

Non-reported
12/01/201816:57:55207

Voltage Sag

Feed A

Voltage sag to 89.2% of nominal voltage for 207 msec

Van 247

Vca 425

Vcn 248

Non-reported
11/18/201813:47:34558Voltage Swell Feed D

Voltage swell 32% above nominal

Van 484

Vab 634

Vca 635

Non-reported
11/10/20184:27:42

493

493

493

511

511

511


Voltage sag

Van 249

Vbn 249

Vab 414

Vbc 389

Vca 378

Voltage sag on all feeder feeder A, B, C and D to 62.3% of normalReported equipment rebooting
11/05/2018

4:49:42


45

Voltage swell

Van 526

Vab 639

Vca 677

Voltage swell as high as 90% on feed BNon reported
11/05/2018

04:54:08


714

Voltage Swell

Van 377

Vbn 347

Vcn 343

Voltage swell as high as 36% on feeder CNon reported
11/04/201802:08:18907

Voltage sag

Vca 433

9.7% voltage sag on Feed A


Non reported
10/15/2018

06:23:00

(no day light saving)

801

voltage Sag

Vcb 229

Van 224

Vbc 414

Vca 400

Power tranformer servering the Atkins building shorted causing power outage on Ameren Blue power line to the campus substation witch affected most of campus buildings power supply.




At 07:33:26 a transformer failed on campus caused one Ameren power line feed to campus substation to open resulting in a single power feed to the substation, the event was not detected by NPCF feeder D meter and substation switchgear MP02 circuit breaker (D feed) feeder relay, below is the sequence of events:

  • 07:33:26 Power loss of Ameren Blue power line to MP01, MP02 switchgears feeding Feeders B and D (Ameren blue power line)
  • Under voltage conditions were detected on the on both switchgears MP01 and MP02 serving feeders B and D
  • Instantaneously switchgear tie circuit breakers closed to Ameren red power line
  • Now Feed A is same as B and C is same as D (all on Ameren red power line)
  • Meter on feeder C detected 18 % under voltage due to load changes
  • Event was not detected at the switchgear MP02 relay feeding D feeder to NPCF and it was not detected by NPCF feeder D meter.
  • Three rows, 72 Blue Waters compute cabinets on feeder D lost power
  • At 14:30:01 power was restored to Ameren blue line
  • Switchgear tie breakers opened, power back to normal feeders’ lineup.
  • NCSA building has only one power feed Ameren Blue and switched to Ameren red during the event.
09/28/2018

15:52:54

15:52:59

684

797

Voltage sag

Feed C

Voltage Level

Vca 432

Non-reported

09/19/2018

02:31:46401

Voltage Swell

Feeder D

Van 322Non-Reported
8/29/201814:27:58

524

524

Voltage Swell

Van 345

Vab 538

Non-Reported
8/17/201822:17:09

443

443

443


Voltage Sewll

Van 625

Vab 746

Vca 713

Non-reported


08/17/2001800:29:27

532

532

549

Voltage Sag

Feeder A

Van 243

Vab 436

Vca 431

Non-Reported
08/17/201800:28:03

654

672

Voltage Sag

Feeder B

Van 244

Vca 436

Non-Reported

08/16/2018

00:31:59446

Voltage Sag

Feeder c

Van 249Non-Reported

08/16/2018 

23:59:05730

Voltage Sag

Feeder C

Van 250Non-Reported

08/16/2018 

23:55:09

245

431

434

Voltage Sag

Feeder B

Van 245

Vca 431

Vab 434

Non-Reported
08/07/20170:30:55

796

796

796

Voltage Swell

Feeder D

Van 618

Vab 713

Vca 728

Non-reported
08/06/201813:53:28

861

861

861

Voltage Sag

Feeder A

Van 246

Vcn 229

Vca 386

 

Non-reported
08/03/201817:14:56787

Voltage Swell

Feeder D

Van 370

Vab 534

Non-reported
07/28/201802:20:55305

Voltage Sag

Feeder A

Pickup Van 249Non-reported
07/11/201812:28:31

66

 

Voltage swell

Feeder D

Van 545

Vab 650

Vca 690

Non-Reported
07/03/20184:35:11289

Voltage swell

Feeder B

Van 451

Vbn 490

Vcn 498

Non-Reported

The email notification received via email 11 minutes after event occurrence.

06/22/2001813:20:02

222

410

411

Voltage Sag Feeder A

Voltage level

Vbn 222

Vab 410

Vbc 411

Non-reported
06/22/2001813:20:05

237

430

424

Voltage Sag Feeder D

Voltage level

Vbn 237

Vab 476

Vbc 424

Non-reported
06/22/2001813:21:56

243

431

424

Voltage Sag Feeder C

 

 

Voltage level

Vbn 243

Vbc 431

Vab 424

Non-reported
06/22/20018

13:18:58

 

136

136

187

Voltage Sag Feeder B

Voltage level

Vbn 246

Vbc 436

Vab 437

Non-reported
6/25/20188 amone weeknon critical equipment maintenanceVFD preventive maintenanceNPCF office area may experience temperature rise for as short period of time.
06/12/201803:41:46

65

65

83

 

Power loss

Feeder A

  • Site Feeder A experienced Unknown event ( still investigating)
  • Power monitoring meters are unable to send alarms
  • Van 173.48 V
  • Vcn 175.70 V
  • Vbn 189.36 V

Blue Waters: 72 cabinet lost power all on feeder A and the entire system was rebooted.

iForge: Lost about 90 nodes.

mForge: reported trouble with some nodes ( 50% of the nodes were lost)

mForge: gpfs was impacted and reported an outage.

The UPS and the PDUs on feeder A did not detect any problems.

Confirmed by F&S, the voltage dropped by 37.37% for 65 milli second which is considered an outage.

The cause: Utility transmission lines effected by the weather/storms

F&S are investigating why meters alerts are not being sent out, possibly filtered by spam network filters.

06/04/201816:00:0017 hourspower loss to rack EE133 mForgeCircuit breaker tripped on closing panel PP1A dead coverLoss of power to feed A to mForge rack EE133, no production loss and it is a save due to power diversity from a different feed, it took a long time to discover to lack of power monitoring.
3/09/201812:41:51

214

400

400

Voltage Sag

Feeder C

Van 214

Vab 400

Vca 400

Non-reported

22

74% below nominal

3/09/201812:41:00

3

3

21

 

Voltage Sag

Feeder D

Van 237

Vab 423

Vca 432

Non-reported

11.8 % below nominal

3/09/201812:40:56171

Voltage Sag

Feeder A

Van 211

Vab 389

Vca 402

Non-reported

18.9 % below nominal

3/09/201812:40:29

667

667

677

Voltage Sag

Feeder B

Van 236

Vab 418

Vca 434

Non-reported

12.9 % below nominal

02/19/201812:08:09

775

775

792

Voltage Sag

Vcn 246

Vca 411

Van 247

Non-reported

14.3% below nominal

02/19/201812:08:04

178

178

178

Voltage Sag

Van 247

Vcn 244

Vca 408

Non-reported

15% below nominal

02/19/201812:07:20564Voltage SagVca 431

Non-reported

10.5% below nominal

02/19/201812:07:14964Voltage SagVca 430

Non-reported

10.4% below nominal

02/19/2018

12:06:54

12:06:59

434

430

Voltage Sag

Vca 434

Vca 430

Non-reported

10.4% below nominal

02/19/201811:45:42

384

384

384
Voltage Sag

Van 246

Vcn 244

Vca 408

Non-reported

15 % below nominal

02/19/201811:44:53189Voltage SagVca 429

Non-reported

9.79 % below nominal

02/19/201811:44:32352Voltage SagVca

Non-reported

9.79 % below nominal

02/19/201810:16:21

896

896

896

 

Voltage Sag

Van 246

Vcn 243

Vca 407

Non-reported

15.2 % below nominal

02/19/201810:15:32802Voltage SagVca 430

Non-reported

10.41% below nominal

02/19/201810:15:11963Voltage SagVca 430

Non-reported

10.41% below nominal

02/04/201813:07:35476Voltage SagVca 428

Non-reported

10.8% below nominal

02/04/201813:008:24185

Voltage sag

Feed C

Van 245

Vcn 242

Vca 403

Non-reported

16% blow nominal

02/04/201813:07:52564

Voltage sag

Feed A

Vca 247

Non-reported

11 % below  nominal

02/01/201808:40:16

894

894

894

Voltage Swell

Feed C

361

331

332

30% above 277 Volts

Non-reported

02/01/20184:39:27

716

716

716

 

Voltage Swell

Feed C

360

331

327

 

29.9 % above 277 Volts

 

01/24/201817:16:59

508

925

975

108

175

342

 

 

Voltage Swell

Feeder A

Vbn 289

Vbc 500

Vca 500

Vab 501

Van 289

Vcn 289

Swell level is 4.3% above nominal
01/21/201820:44:20

543

543

543

 

Voltage Sag

Feed A

Vcn 254

Vbc 454

Vca 447

Sag level at 8.3%

Non-reported

01/21/201820:44:49

691

691

 

Voltage Sag

Feed C

Vcn 259

Vca 452

Sag level at 6.5%

Non-reported

01/04/201815:24:49

192

192

192

210

Voltage Sag

Feed A

Vcn 219

Vbc 408

Vca 404

Vbn 251

Sag level at 15.8%

Non-reported

01/04/201815:24:49

789

789

789

Voltage Sag

Feed D

Vcn 237

Vbc 428

Vca 429

Sag level at 10.8%

Non-reported

01/04/201815:25:07

266

226

226

244

Voltage Sag

Feed C

Vcn 252

Vbc 448

Vca 450

Vbn 249

Sag level at 6.67%

Non-reported 

01/01/201815:42:50

627

627

627

644

 

Voltage Sag

Feed B

Vcn 246

Vbc 438

Vca 445

Vbn 258

Sag level at 8.75%

Non-reported

12/19/20178:31:01

852

852

852

852

Voltage sag

feed C

Vbn 248

Vab 447

Vbc 434

Vcn 261

Sag level at 9.58%

Non-reported

12/19/20178:30:57

449

499

517

Voltage sag

feed D

Vbn 258

Vbc 447

Vba 451

Sag level at 6.87%

Non-reported

12/19/20178:30:49

990

990

990

Voltage sag

feed A

Vab 439

Vbc 427

Vbn 242

Vcn262

Sag level at 11.04%

Non-reported

12/19/20178:30:55

193

193

Voltage sag

feed B

Vbn 257

Vbc 447

Sag level at 6.87%

Non-reported

12/16/20179:53:37

31

31

31

Voltage sag

feed A

Van 255

Vcn 257

Vca 437

Sag level at 8.95%

Non-reported

12/14/20175:27:25

825

91

91

Voltage sag

feed A

Vab 445

Vbc 451

Vca 449

Sag level at 7.29%

Non-reported

12/14/20175:27:27

429

695

695

 

Voltage sag

Feed C

Vab 450

Vbc 452

Vca 450

Sag level at 6.25%

Non-reported

 

12/12/201712:00Change meters threshold to 94%  Sag level at 6%
12/10/201714:32:09

851

851

868

851

Voltage sag

Feed A

 

Vbc 455

Vca 451

Van 264

Vcn 256

Non-reported
12/10/201714:29:10

960

960

960

960

Voltage sag

Feed B

Van 266

Vcn 254

Vbc 456

Vca 444

Non-reported
12/10/201714:35:57

231

231

231

249

Voltage Sag

Feed C

Vcn 250

Vbc 448

Vca 445

Van 265

 

Non-reported
12/10/201714:32:57

981

981

981

998

 

Voltage Sag

Feed D

Vcn 256

Vbc 458

Vca 447

Van 266

 

Non-reported
12/08/20178:59:06416

Voltage sag

Feed C

Vab 459

Vbc 459

Vca 464

Non-reported
12/07/201709:02:11812

Voltage sag

Feed C

Vab 458

Vbc 458

Vca 457

Non-reported
12/07/201708:06:4433

Voltage Sag @ the 277 level

Feed A

Vbn 268

Phase to neutral measurement 

Non-reported
12/06/201708:54:50940Voltage Sag feed BVab 461Non-reported
12/05/201700:56:50181

Volt Sag

Feed D

Vab 453

Vca 458

Tower 1 and 2 controller failure
12/05/201700:56:50928

Volt Sag

Feed  A

Vab 446

Vca 449

Tower 1 and 2 controller failure
12/05/201700:59:07833

Volt Sag

Feed C

Vab 463

Vca 452

Tower 1 and 2 controller failure
12/05/201700:53:03650

Volt Sag

Feed B

Vab 460Tower 1 and 2 controller failure
12/02/201711:48:38

354

354

354

Voltage Sag
Vab 457                    
Vbc 456                        
Vca 454
Non-reported
11/28/201720:36.27

598

598

598

Voltage Sag
Vab 460                      
Vbc 460                          
Vca 458
Non-reported
11/23/201722:17:21

780

798

963

Voltage sag

Vbc 464

Vca 453

Vab 456

Non-reported
11/18/201706:16:59

529

680

680

Voltage Sag

Vbc 465

Vab 459

Vca 460

Non-reported
11/15/201714:14:46

562

562

544

Voltage Sag
Vbc  457                                
Vca  457                    
Vab 462                
   
Non-reported
11/14/201707:08:38

500

517

583

Voltage Sag

Van 266

Vab 461

Vca 464

Non-reported
11/14/201707:05:41

574

574

657

Voltage Sag

Van 266

Vab 461

Vca 463

 

Non-reported
11/13/201708:42:32646Voltage Sag

Voltage Sag Vab 420

Voltage Sag Vca 432

 

None     
11/13/2017 08:44:36 472Voltage Sag

Voltage Sag Vab 408

Voltage sag Vca 423

Voltage sag Vbc 460

None
11/13/201708:38:51 877Voltage Sag

Voltage Sag Vab 415

Voltage Sag Vca 527

           None      
11/10/201715:50off lineCoolingDamaged chilled water supply hose

Lost 2 XE6 cabinets due to isolation XDP 4.8

Cause: Water supply line to  XDP 4.8 sprang a leak.

Called  Blue Waters on call HonWai Leong

Cary were notified 4:58 PM

Unit will be off line waiting on hose replacement ETA is 2 week

11/04/201720:00:58998Voltage Sag

Vab 456

Vbc 457

Vca 456

None
10/31/201720:08:31309Voltage Sag

Vab 455

Vbc 456

Vca 455

None
10/30/20176:37:18Not reportedVoltage Sag

Vab 461

Vbc 460

Vca 462

None
10/29/201710:07:51224Voltage Sag

Vab 440

Vbc 454

Vca 460

None
10/26/20177:57:23690Voltage Sag

Vab 426

Vbc 403

Vca 424

LSST: Servers rebooted at NCSA and NPCF
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