GE Multilin 850

CHAPTER 4: SETPOINTS CONTROL
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 4–387
RAISE PHASE TOC 1 (2, 3, 4) PKP
Range: 1 to 100% in steps of 1%
Default: 0
This setpoint determines the characteristics of the PHASE TOC 1/2 protection element by
raising the Pickup level.
RAISE NEUTRAL TOC 1 (2, 3, 4) PKP
Range: 1 to 100% in steps of 1%
Default: 0
The setpoint determines the characteristics of the NEUTRAL TOC 1/2 protection element
by raising the Pickup level.
RAISE GROUND TOC 1 (2, 3, 4) PKP
Range: 1 to 100% in steps of 1%
Default: 0
The setpoint determines the characteristics of the GROUND TOC 1 protection element by
raising the Pickup level.
RAISE SENS GND TOC 1/2 PKP
Range: 0 to 100% in steps of 1%
Default: 0
The setpoint determines the characteristics of the SENSITIVE GROUND TOC 1 protection
element by raising the Pickup level.
RAISE NEG SEQ TOC 1/2 PKP
Range: 0 to 100% in steps of 1%
Default: 0
The setpoint determines the characteristics of the NEGATIVE SEQUENCE TOC 1
protection element by raising the Pickup level.
SELECT SETTING GROUP
Range: Active, Group 1, 2, 3, 4, 5, 6
Default: Group 1
This setpoint determines the setting group that is used for AR1 Reclose Shot 1.
FAST PATH:
The above setpoints are repeated for each of the Reclose shots 1 through 4.
Rate Supervision Path: Setpoints > Control > Autoreclose 1 > Rate Supervision
The Autoreclose Rate Supervision feature monitors the number of reclosures per hour.
Once the number of reclosures within one hour exceeds the MAXIMUM RATE PER HOUR
setpoint, the Autoreclose scheme raises an alarm or is sent to Lockout if the function is set
for Lockout.
FAST PATH:
If the scheme is sent to Lockout from the Rate Supervision function, the Lockout can be
reset only if the rate per hour drops below the setpoint value or if the Rate Supervision
data is cleared by EnerVista 8 Series Setup software.
FUNCTION
Range: Disabled, Lockout, Alarm
Default: Disabled
The selection of the Lockout setting enables the Autoreclose Rate Supervision function
Lockout. The selection of the Alarm setting enables the Autoreclose Rate Supervision
function Alarm only.