Eastern Interconnection Frequency Events
(updated as events are recorded.)
All times are UTC.
Generated at 05:00:21 02-Sep-2025 UTC.
| Date |
Pickup |
Dropout |
Delta (Hz) |
Slope(Hz/sec) |
Type |
| 09/01/25 |
00:00:00 |
00:00:04 |
-0.037 |
-0.0042 |
VT ROC |
| 09/01/25 |
00:00:04 |
00:00:10 |
-0.045 |
-0.0065 |
VT ROC |
| 09/01/25 |
00:00:01 |
00:00:14 |
-0.046 |
-0.0057 |
Delta - |
| 09/01/25 |
02:00:06 |
02:00:09 |
-0.026 |
-0.0040 |
VT ROC |
| 09/01/25 |
02:00:05 |
02:00:13 |
-0.026 |
-0.0037 |
Delta - |
| 09/01/25 |
04:00:06 |
04:00:09 |
-0.021 |
-0.0042 |
VT ROC |
| 09/01/25 |
13:25:12 |
13:25:19 |
0.028 |
0.0035 |
Delta + |
| 09/01/25 |
13:35:48 |
13:35:52 |
0.025 |
0.0040 |
VT ROC |
| 09/01/25 |
13:35:49 |
13:35:56 |
0.028 |
0.0039 |
Delta + |
| 09/01/25 |
14:15:01 |
14:15:06 |
0.025 |
0.0039 |
Delta + |
| 09/01/25 |
14:30:22 |
14:30:24 |
0.028 |
0.0042 |
VT ROC |
| 09/01/25 |
14:30:19 |
14:30:27 |
0.029 |
0.0037 |
Delta + |
| 09/01/25 |
15:17:30 |
15:17:32 |
0.021 |
0.0036 |
VT ROC |
| 09/01/25 |
16:57:14 |
16:57:18 |
0.031 |
0.0037 |
VT ROC |
| 09/01/25 |
16:57:11 |
16:57:22 |
0.032 |
0.0037 |
Delta + |
| Date |
Pickup |
Dropout |
Delta (Hz) |
Slope(Hz/sec) |
Type |
| 09/02/25 |
00:00:06 |
00:00:09 |
-0.025 |
-0.0041 |
VT ROC |
| 09/02/25 |
00:00:05 |
00:00:10 |
-0.025 |
-0.0036 |
Delta - |
| 09/02/25 |
00:00:05 |
00:00:38 |
59.936 |
|
Under 59.940 |
| 09/02/25 |
04:00:06 |
04:00:11 |
-0.028 |
-0.0054 |
VT ROC |
| 09/02/25 |
04:00:07 |
04:00:15 |
-0.029 |
-0.0049 |
Delta - |
| 09/02/25 |
05:00:06 |
05:00:09 |
-0.026 |
-0.0044 |
VT ROC |
| 09/02/25 |
05:00:06 |
05:00:15 |
-0.028 |
-0.0039 |
Delta - |
PSFM Hardware and software by Robert M. Orndorff
Generated at 05:00:21 02-Sep-2025 UTC.
PSFM Home page