Abnormality Reposrt_BFP2 _120123.pdf
- 1. ABNORMALITY REPORT OF BFP-2 (11KV, 1100kW, ANSALDO Make) Page 1 of 4 CPP-CPSU/E/M-103/2023 Date: 13/01/2023 Sub: Abnormality report of BFP-2 tripped on 49 (MPTTL) on dated 12/01/2023 Date & Time of Event: BFP-2 tripped at 03:52:05 Hrs. on 12/01/2023. Effect on Plant: Nil Description of events: Before event, BFP-2 was running for TG-1 and BFP-1 was on standby. At 03:46:56.204 thermal content exceed alarm came on BFP-2 relay. At 03:52:04.924 relay gave tripping command (86B-self reset) on 49 (Thermal O/L-MPTTR) and BFP-2 motor tripped. Subsequently, at 03:52:08.582 trip command from DCS operated. Process started BFP-2 again at 04:04:59.904, but at 04:41:07:340 BFP-2 tripped on trip command from DCS (front journal bearing temperature high). Relay events: BFP-2 Tripped on 49- Thermal Overload: Date & Time Signal name Status Additional info Cumulative Time 03:46:56:204 3Ith>M(1) BLK_RESTART True Thermal content exceeded alarm. 0 03:46:56:204 MV(4) Q4 True Restart Inhibit 0 03:46:56:204 MV(4) Q5 False Restart Enable 0 03:51:33:379 3Ith>M(1) ALARM True 00:04:37.175 03:52:04:924 3Ith>M(1) OPERATE True 49- Thermal O/L Operated 00:05:08.720 03:52:04:924 Master Trip(2) TRIP True 86B 00:05:08.720 03:52:04:924 MV(2) Q5 True 86B OPTD 00:05:08.720
- 2. ABNORMALITY REPORT OF BFP-2 (11KV, 1100kW, ANSALDO Make) Page 2 of 4 03:52:04:924 MV(3) Q3 True 49_OPTD (TH O/L) 00:05:08.720 03:52:04:987 MV(1) Q8 False BKR ON 00:05:08.783 03:52:04:992 MV(1) Q3 True BREAKER OFF 00:05:08.788 03:52:05:014 MV(3) Q3 False 49_OPTD (TH O/L) 00:05:08.810 03:52:08:582 MV(1) Q6 True PR/B/W TEM HIGH TRIP 00:05:12.378 03:52:10:532 MV(1) Q6 False PR/B/W TEM HIGH TRIP 00:05:14.328 03:56:02:859 MV(4) Q5 RESTRT ENABLE 00:09:06.655 04:04:59:904 MV(1) Q8 True BKR ON 00:18:03.700 04:04:59:919 3I>(1) START L1,L2 00:18:03.715 04:04:59:927 3I(1) HIGH_ALARM True 00:18:03.723 04:04:59:927 3I(1) HIGH_WARN True 00:18:03.723 04:05:01:334 MV(2) Q2 False CLS/ON CMD FM DCS 00:18:05.130 04:41:07:340 MV(2) Q3 True OFF/TRIP CMD FM DCS 00:54:11.136 04:41:07:380 MV(1) Q6 True PR/B/W TEM HIGH TRIP 00:54:11.176 04:41:07:401 I<->O CB(1) POSITION open CBXCBR1 switch position 00:54:11.197 04:41:07:403 CBCM(1) NO_OPR 22 Breaker Counter 00:54:11.199 04:41:07:403 MV(1) Q8 False BKR ON 00:54:11.199 04:41:07:405 MV(1) Q3 True BREAKER OFF 00:54:11.201 04:41:07:408 I<->O CB(1) ENA_CLOSE True 00:54:11.204 04:41:08:838 MV(2) Q3 False OFF/TRIP CMD FM DCS 00:54:12.634 Analysis: BFP-2 tripped on thermal after running 05 minutes at 65A-78A. Motor restart blocked by relay for 04 minutes as per relay thermal curve.
- 3. ABNORMALITY REPORT OF BFP-2 (11KV, 1100kW, ANSALDO Make) Page 3 of 4 Oscillographic Record : Attached in Annex-A, retrieved from REM-620 of BFP-2 Remedial action: Suggestion given for provision of tag/alarm for motor tripped on "Thermal overload" at DCS for BFP motors vide suggestion No.: 14004 on dated 12/10/2022. QEHSEn (ISO 14001, 45001, 9001 & 50001) related impact: Nil
- 4. REM620 - 1 - 12/01/2023 / 2:46:56.204 AM 13/01/2023 / 11:53:17 AM SIGRA 4.59 02AE0049_2023_1_12_2_46_56_204.CFG REM620 File path: MPLPISO_OHSAS SERVER1 CPP_CPSU_FILE LISTM-103_TRIP REPORTS2023BFP-2 TRIPP ON MPTTRDR & EVENT02AE0049_2023_1_12_2_46_56_204.CFG Start time: 12/01/2023 2:46:55.204 AM Sample rate: 800 Hz Value representation:primary Record type: COMTRADE ANNEXURE-A
- 5. REM620 - 2 - 12/01/2023 / 2:46:56.204 AM 13/01/2023 / 11:53:18 AM SIGRA 4.59 02AE0049_2023_1_12_2_46_56_204.CFG Time in ms Measuring Signal Instantaneous R.M.S. Cursor 1: -553.3 K1:IL1 A -75.265 A 65.768 A Cursor 2: 266.1 K1:IL2 B 6.2482 A 65.245 A C2 - C1 819.4 K1:IL2 B - K1:IL1 A 81.5132 A -0.523 A Trigger 12/01/2023 2:46:56.204 AM t/s -0.8 -0.6 -0.4 -0.2 0.0 0.2 0.4 0.6 0.8 K1:IL1 A/ A 0 20 40 t/s -0.8 -0.6 -0.4 -0.2 0.0 0.2 0.4 0.6 0.8 K1:IL2 B/ A 0 20 40 t/s -0.8 -0.6 -0.4 -0.2 0.0 0.2 0.4 0.6 0.8 K1:IL3 C/ A 0 20 40 DR-1
- 6. REM620 - 3 - 12/01/2023 / 2:46:56.204 AM 13/01/2023 / 11:53:18 AM SIGRA 4.59 02AE0049_2023_1_12_2_46_56_204.CFG t/s -0.8 -0.6 -0.4 -0.2 0.0 0.2 0.4 0.6 0.8 AUTO CLS CMD _DCS BRKR IN SERVICE BRKR ON RESTRT INHIBIT RESTRT ENABLE 49_BLK_RESTRT
- 7. REM620 - 1 - 12/01/2023 / 2:51:33.379 AM 13/01/2023 / 11:50:39 AM SIGRA 4.59 02AE0050_2023_1_12_2_51_33_379.CFG REM620 File path: MPLPISO_OHSAS SERVER1 CPP_CPSU_FILE LISTM-103_TRIP REPORTS2023BFP-2 TRIPP ON MPTTRDR & EVENT02AE0050_2023_1_12_2_51_33_379.CFG Start time: 12/01/2023 2:51:32.379 AM Sample rate: 800 Hz Value representation:primary Record type: COMTRADE
- 8. REM620 - 2 - 12/01/2023 / 2:51:33.379 AM 13/01/2023 / 11:50:40 AM SIGRA 4.59 02AE0050_2023_1_12_2_51_33_379.CFG Time in ms Measuring Signal Instantaneous R.M.S. Cursor 1: -0.0 K1:IL1 A -18.457 A 77.011 A Cursor 2: -629.5 K1:IL1 A -10.220 A 76.873 A C2 - C1 -629.5 K1:IL1 A - K1:IL1 A 8.237 A -0.138 A Trigger 12/01/2023 2:51:33.379 AM t/s -0.8 -0.6 -0.4 -0.2 0.0 0.2 0.4 0.6 0.8 K1:IL1 A/ A 0 25 50 t/s -0.8 -0.6 -0.4 -0.2 0.0 0.2 0.4 0.6 0.8 K1:IL2 B/ A 0 25 50 t/s -0.8 -0.6 -0.4 -0.2 0.0 0.2 0.4 0.6 0.8 K1:IL3 C/ A 0 25 50 DR-2
- 9. REM620 - 3 - 12/01/2023 / 2:51:33.379 AM 13/01/2023 / 11:50:40 AM SIGRA 4.59 02AE0050_2023_1_12_2_51_33_379.CFG t/s -0.8 -0.6 -0.4 -0.2 0.0 0.2 0.4 0.6 0.8 SPRING CHRGED BRKR IN SERVICE BRKR ON RESTRT INHIBIT 49_BLK_RESTRT 49_ALARM
- 10. REM620 - 1 - 12/01/2023 / 2:52:04.924 AM 13/01/2023 / 11:48:30 AM SIGRA 4.59 02AE0051_2023_1_12_2_52_4_924.CFG REM620 File path: MPLPISO_OHSAS SERVER1 CPP_CPSU_FILE LISTM-103_TRIP REPORTS2023BFP-2 TRIPP ON MPTTRDR & EVENT02AE0051_2023_1_12_2_52_4_924.CFG Start time: 12/01/2023 2:52:03.924 AM Sample rate: 800 Hz Value representation:primary Record type: COMTRADE
- 11. REM620 - 2 - 12/01/2023 / 2:52:04.924 AM 13/01/2023 / 11:48:31 AM SIGRA 4.59 02AE0051_2023_1_12_2_52_4_924.CFG Time in ms Measuring Signal Instantaneous R.M.S. Cursor 1: -1000.0 K1:IL1 A -104.30 A 26.074 A Cursor 2: 0.0 K1:IL1 A -109.28 A 77.244 A C2 - C1 1000.0 K1:IL1 A - K1:IL1 A -4.98 A 51.170 A Trigger 12/01/2023 2:52:04.924 AM t/s -0.8 -0.6 -0.4 -0.2 0.0 0.2 0.4 0.6 0.8 K1:IL1 A/ A 0 25 50 t/s -0.8 -0.6 -0.4 -0.2 0.0 0.2 0.4 0.6 0.8 K1:IL2 B/ A 0 25 50 t/s -0.8 -0.6 -0.4 -0.2 0.0 0.2 0.4 0.6 0.8 K1:IL3 C/ A 0 25 50 DR-3
- 12. REM620 - 3 - 12/01/2023 / 2:52:04.924 AM 13/01/2023 / 11:48:31 AM SIGRA 4.59 02AE0051_2023_1_12_2_52_4_924.CFG t/s -0.8 -0.6 -0.4 -0.2 0.0 0.2 0.4 0.6 0.8 DCS I/L FOR MANUAL ST SPRING CHRGED BRKR IN SERVICE BRKR OFF BRKR ON RESTRT INHIBIT 49_OPERATE 49_BLK_RESTRT 49_ALARM 46_START