GE MiCOM P145 Agile User Manual

DDB Signal Number Variation 1 Variation 2
456 DAR In Progress AR In Progress 1
461 LiveDead Ccts OK Circuits OK
7.1 OPERATING MODES
The Autoreclose function has three operating modes:
● Auto Mode: Autoreclose is in ser
vice
● Non-auto Mode: Autoreclose is out of service AND the chosen protection functions are blocked if setting AR
Deselected = Block Inst Prot.
● Live Line Mode: Autoreclose is out of service, but protection functions are NOT blocked, even if setting AR
Deselected = Block Inst Prot.
Note:
Live Line Mode provides extra security for live line working on the protected feeder.
The Autoreclose function must first be enabled in the CONFIGURA
TION column. You can then select the operating
mode according to application requirements. The basic method of mode selection is determined by the setting AR
Mode Select in the AUTORECLOSE column, as summarised in the following table:
AR Mode Select Setting Description
Command Mode
Auto or Non-auto mode selection is determined by the command cell Aut
oreclose Mode in the CB CONTROL
column.
Opto Set Mode
Auto or Non-auto mode selection is determined by an opto-input mapped to AR Aut
o Mode
If the AR Auto Mode input is high, Auto operating mode is selected. If the AR Auto Mode input is low, Non-
Auto operating mode is selected.
User Set Mode
Auto or Non-auto mode selection is controlled by the T
elecontr
ol Mode input. If the Telecontrol Mode input
is high, the setting Autoreclose Mode in the CB CONTROL column is used to select Auto or Non Auto
operating mode. If the Telecontrol Mode input is low, it behaves as for the Opto Set Mode setting.
Pulse Set Mode
Auto or Non-auto mode selection is determined by the falling edge of Telecontr
ol. If the Telecontrol input is
high, the operating mode is toggled between Auto and Non Auto Mode on the falling edge as it goes low.
The Auto Mode pulses are produced by the SCADA system.
If the Telecontrol input is low, it behaves as for the Opto Set Mode setting.
The Live Line Mode is controlled by AR LiveLine Mode
. If this is high, the scheme is forced into Live Line Mode
irrespective of the other signals.
7.1.1 FOUR-POSITION SELECTOR SWITCH IMPLEMENTATION
It is quite common for some utilities to apply a four position selector switch to control the mode of operation. This
application can be implemented using the DDB signals AR Liv
eLine Mode
, AR Auto Mode and Telecontrol Mode.
This is demonstrated in the following diagram.
P14x Chapter 13 - Autoreclose
P14xEd1-TM-EN-1 287

GE MiCOM P145 Agile Specifications

General

Brand	GE
Model	MiCOM P145 Agile
Category	Control Unit
Language	English