6–104
345 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
S3 PROTECTION
CHAPTER 6: SETPOINTS
OUTPUT RELAY 3 to 6
Range: Do Not Operate, Operate
Default: Do Not Operate
Any or all of the output relays 3 to 6 can be selected to operate upon the Neutral IOC
operation. The selection of relay outputs operation is available no matter whether the
Latched Alarm
,
Alarm
, or
Trip
function is selected.
BLOCK 1/2/3
Range: Off, Contact Input 1 to 10, Virtual Input 1 to 32, Remote Input 1 to 32, Logic
Element 1 to 16
Default: Off
There are three independent blocking inputs in the Neutral IOC menu. The function is
blocked if any of the three blocking inputs is detected “high”. Selection of a block input
includes Contact input, Virtual Input, Remote Input, or Logic Element.