Correct Operation of Relay Protection in Smart Substation
Release time:
2024-05-18
Author:
Electricity today.
Source:
Public Number: Electric Power Today
In intelligent substation, the complete relay protection function is generally composed of relay protection device, merging unit and intelligent terminal.
The reasonable operation of each intelligent device plays a vital role in the normal operation and reliable action of the relay protection. Once the operation is wrong, the consequences of misoperation or refusal will often occur. Corresponding to different operating states, the operation methods are summarized and shared by everyone.
Protection device | |||
|---|---|---|---|
| Running status | Signal status | Deactivated Status |
DC power supply | Input | Input | Exit |
Protection function soft pressure plate | Input | Input | Exit |
Device SV soft pressure plate | Input | Input | Exit |
GOOSE RECEIVER PLATE | Input | Input | Exit |
GOOSE SEND PLATE | Input | Exit | Exit |
Overhaul hard pressure plate | Exit | Exit | Input |
intelligent terminal | |||
| Running status | Signal status | Deactivated Status |
DC power supply | Input | Input | Exit |
Closing outlet hard pressure plate | Input | Exit | Exit |
Overhaul pressure plate | Exit |
|
|
Merge Unit | ||
| Running status | Deactivated Status |
DC power supply | Input | Exit |
AC power supply | Input | Exit |
Overhaul hard pressure plate | Exit |
|
The correct realization of the relay protection function, of course, is the embodiment of the comprehensive effect of each part. Under the premise of correct operation of the single device,The synergy between the devices is even more important..
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