Point Analysis for Bearing Temps on Lonestar Reaeration Blowers

Date: 2026 03-March 17

Purpose

We are inspecting whether or not bearing temperatures were effectively monitored for the Lonestar Reaeration Blowers

#reaeration #lonestar #blowers

No alarms were triggered for Blower 2 (B-166) at least back to April 2024.


Blower 1, B-165

These points are found on control sheet: "RAS BLOWER 1 (B-165) STEERING", which is on Drop 6, Task 2, Sheet 191

IDCS Description
TAH1654 B-165 BRNG TMP HI SPD FRNT
TAH1655 B-165 BRNG TMP HI SPD REAR
TAH1656 B-165 BRNG TMP LO SPD FRNT
TAH1657 B-165 BRNG TMP LO SPD REAR
TAH1653 B-165 HI MTR TMP COIL U
TAH1659 B-165 HI MTR TMP COIL V
TAH16510 B-165 HI MTR TMP COIL W

All of these show 0 and "Normal" for the past year, from the EDS and Trend.

--

eds trend tah1654 tah1655 tah1656 tah1657 tah1653 tah1659 tah16510 --days 365 -dp 4000

Pasted image 20260317141234.png


Blower 1, B-166

These points are found on control sheet: "RAS BLOWER 2 (B-166) STEERING", which is on Drop 6, Task 2, Sheet 193

IDCS Description
TAH1664 B-166 BRNG TMP HI SPD FRNT
TAH1665 B-166 BRNG TMP HI SPD REAR
TAH1666 B-166 BRNG TMP LO SPD FRNT
TAH1667 B-166 BRNG TMP LO SPD REAR
TAH1663 B-166 HI MTR TMP COIL U
TAH1669 B-166 HI MTR TMP COIL V
TAH16610 B-166 HI MTR TMP COIL W

--

All of these show 0 and "Normal" for the past year, from the EDS and Trend.

eds trend tah1664 tah1665 tah1666 tah1667 tah1663 tah1669 tah16610 --days 365 -dp 4000

Pasted image 20260317141820.png


Blower 1, B-167

These points are found on control sheet: "RAS BLOWER 3 (B-167) STEERING", which is on Drop 6, Task 2, Sheet 195

IDCS Description
TAH1674 B-167 BRNG TMP HI SPD FRNT
TAH1675 B-167 BRNG TMP HI SPD REAR
TAH1676 B-167 BRNG TMP LO SPD FRNT
TAH1677 B-167 BRNG TMP LO SPD REAR
TAH1673 B-167 HI MTR TMP COIL U
TAH1679 B-167 HI MTR TMP COIL V
TAH16710 B-167 HI MTR TMP COIL W

--

Most of these show 0 and "Normal" for the past year, from the EDS and Trend. All four of the bearing temp sensors for Blower 3 (TAH1674, TAH1675, TAH1676, TAH1677) showed a high value of 1.0 on Nov 21, 2025, for eight minutes, from 10:33 AM to 10:41 AM.

eds trend tah1674 tah1675 tah1676 tah1677 tah1673 tah1679 tah16710 --days 365 -dp 4000

Pasted image 20260317142014.png

Pasted image 20260317143031.png

Pasted image 20260317143709.png

[[reaeration-blowers-tah1677_21Nov2025.html]]


Ovation Alarm App:

Search all historic alarms for these points. None found for Blower 2, only for Blower 3, on Nov 21, 2025.

alarm-TAH1674,1675,1676,1677-21November2025.png