|
Serial number |
Voltage level |
Line name |
Fault rod |
Trip date |
time |
Reason for |
Reason for |
Remarks |
Traveling wave |
|
1 |
500 |
Long ship I return line |
#222 |
January 23rd |
15:59 |
External force destruction |
Mountain fire |
|
223、224 |
|
2 |
500 |
Purple I line |
#294-#295 |
January 31st |
13:44 |
External force destruction |
Mountain fire |
01-31 13:44 13:44 line: 500kV purple Zong I line C phase tripping, coincidence failed to jump three phases. The network regulation informed Zion I line that the distance between Zong Yuan and Zong Yuan 7.5km was electrified, which had been announced by the network construction company. The purple Zong I line was successfully delivered at 17:54. |
294 |
|
3 |
500 |
Ancient I line |
#193-#194 |
January 31st |
14:32 |
External force destruction |
Mountain fire |
01-31 14:32 14:32 line: 500kV ship ancient I line A phase trip, coincided successfully. The notifications have been sent to the I line from the ship's 50km line. The results showed that there were obvious flashover traces between the #193-#194 tower third and the fourth spacers, which was judged to be caused by mountain fires. |
191 |
|
4 |
500 |
II line of complex sand |
#205-#206 |
January 31st |
15:41 |
External force destruction |
Mountain fire |
01-31 15:41 15:41 line: phase 500kV tripping of II line. 18:20, Sha Ping change report, Sha Ping change sand II line 5021, 5022 line block detector burn out inspection. At 20:21 the net transfer operation of the II line of the sand is overhauled. At 23:02, there was no damage to the tuning device of the wave blocking II line of Sha Ping substation, and there was no spare parts at present. The II line of the reclaimed sand could not be recovered in short time. At 12:20 on February 2nd, the damage defects of the wave tuning device of the Sha Ping substation and the II line were recovered. At 13:58, the II line was transferred to operation. |
205 |
|
5 |
500 |
Suzhou Su I line |
#267 |
February 14th |
13:38 |
Ice flicker |
Melting ice flashover |
02-14 13:38 13:38 line: Ship Su I line B phase trip, coincided successfully. |
267 |
|
6 |
500 |
Long ship I return line |
#56 |
March 26th |
15:22 |
Lightning strike |
Winding |
03-26 15:22 15:22 line: 500kV long ship I line C phase trip, coincided successfully. At 16:17 o'clock, Changyang paving, Chuanshan reported long ship I line on both sides of the 931 light difference, 802 type longitudinal distance, zero sequence protection action C phase, coincide successfully. (CC2000 correctly pushed the picture; D5000 only pushed the Changyang paving tripping screen, and the boat didn't push the picture. At 17:32 the network has been informed of the network construction of a live line patrol line. |
56 |
|
7 |
500 |
Five people's line |
#187 |
May 25th |
2:34 |
Lightning strike |
Winding |
The fault point is identified as lightning flashover on insulator on the front side of phase 187 B. |
186 |
|
8 |
500 |
Artemisia |
#336 |
June 1st |
14:19 |
Lightning strike |
Winding |
The fault points are obvious signs of flashover on the side pressure ring of the 336 C phase insulator string and the side pressure ring of the conductor side. |
318,335 |
