1 | Availability≥99％; |
2 | Main equipment (such as server, workstation, etc.) MTBF≥30000h; |
3 | Event report transmission time≤3 s/station; |
4 | Fault report transmission time≤10 s/station; |
5 | Other information transmission time≤5 m/station; |
6 | Under large-scale failure of system: for plants and stations with direct connection, time required to transmit all information＜15 m; |
7 | Under large-scale failure of system: for plants and stations not with direct connection, time required to transmit all information＜60 m; |
8 | Within the main station system, the TCP/IP protocol is used as the basic network communication protocol; |
9 | Protection device action information transmission time＜0.5 m; |
10 | Protection device fixed-value transmission time＜1 m; |
11 | Protection device analog quantity measurement transmission time＜0.5 m; |
12 | Protection device operating state transmission time＜0.5 m; |
13 | The communication protocol supports multiple main station and substation communication protocols. |
Data interaction with substation systems from different manufacturers can be achieved. | |
It also supports channel monitoring and data flow monitoring. | |
14 | The channel type is dispatching data network; |
15 | Under normal circumstance, the server CPU (5 minutes bay) ≤25％; |
16 | Under normal circumstance, the human-machine workstation CPU (5 minutes bay) ≤35％; |
17 | When processing massive data, the server CPU (5 minutes bay) ≤40％; |
18 | When processing massive data, the human-machine workstation CPU (5 minutes bay) ≤50％; |
19 | CRT screen calling time <3 s; |
20 | Retrieval data response time<5 s; |
21 | Under normal circumstance, the average network load rate (within any 5 minutes) ≤5% |
22 | Under power grid accident, the average network load rate (within any 5 minutes) ≤10% |
