PRS-7391 time synchronization device
PRS-7391 time synchronization device applies to substations and power plants with the voltage grade ranking at or above 10KV,which provides time and synchronization source for various secondary equipment in the plants and stations,such as dispatch automation system,microcomputer relay protection device,fault recorder,event sequence recording device,tele-control device(RTU),computer data exchanging network,
intelligent electronic device(IED),etc.
| ltem | Parameter |
|---|---|
| Running | |
| supervision | This device supports local SCADA and remote control center communication in using of protocols such as IEC61850 to realize the device running status supervision. |
| Time service | This device supports GPS(Global Positioning System)and BDS(BeiDou |
| Navigation Satellite System).In addition,it supports antenna transmission time delay compensation. | |
| Signal reception | Provides 2 reception channels for IRIG-B signal via its optical port or RS-485/422 port ， Inaddition,it supports link-based reception time delay compensation. |
| Standards | IEEE 1588V2 protocol (BC mode and OC mode),SNTP/NTP protocol. |
| Synchronization | Supporting PPS(Pulse Per Second),PPM(Pulse Per Minute),PPH (Pulse Per |
| Hour),IRIG-B signal,timing message (serial),SNTP/NTP timing message (network),IEEE 1588 signal,etc. | |
| HMI | Provides 5.7”LCD and navigation keypad for the display of real time,satellite tracking status,IRIG-B inputting status,current clock source,etc. |
| Item | RS-485/422 | TTL | Contact | Optical |
|---|---|---|---|---|
| Rising edge(Max.) | 50ns | 50ns | 50ns | 50ns |
| Accuracy(Max.) | 100ns | 100ns | 100ns | 100ns |
| Pulse width | 100ms | 100ms | 100ms | 100ms |
