CHAPTER 6: SETPOINTS
S3 PROTECTION
350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
6–55
Current elements
Figure 13: Current elements menu
S3 SETPOINT GROUP 1
PHASE TOC
PHASE IOC1
PHASE IOC2
GROUND TOC
GROUND IOC1
GROUND IOC2
GROUND DIR OC
NEUTRAL TOC
NEUTRAL IOC1
NEUTRAL IOC2
NEUTRAL DIR OC
NEGATIVE SEQ IOC
PHASE UV
PHASE OV
NEUTRAL OV
AUXILIARY UV
AUXILIARY OV
NEGATIVE SEQ OV
UNDER-FREQUENCY1
UNDER-FREQ
2
OVER-FREQ
1
OVER-FREQ
2
UENCY
UENCY
UENCY
THERMAL MODEL
▼
S3 NEUTRAL TOC
NTRL TOC FUNCTION
NEUTRAL TOC PKP
NEUTRAL TOC CURVE
NEUTRAL TOC TDM
NEUTRAL TOC RESET
OUTPUT RELAY 3
...
OUTPUT RELAY 6
BLOCK 1
BLOCK 2
BLOCK 3
▼
S3 NEUTRAL IOC1/2
NTRL IOC1/2 FUNCTION
NEUTRAL IOC1/2 PKP
NEUTRAL IOC1/2 DELAY
NEUTRAL IOC DIRECTION
OUTPUT RELAY 3
...
OUTPUT RELAY 6
BLOCK 1
BLOCK 2
BLOCK 3
▼
S3 GROUND TOC
GND TOC FUNCTION
GND TOC PKP
GND TOC CURVE
GND TOC TDM
GND TOC RESET
OUTPUT RELAY 3
...
OUTPUT RELAY 6
BLOCK 1
BLOCK 2
BLOCK 3
▼
S3 GROUND IOC1/2
GND IOC1/2 FUNCTION
GND IOC1/2 PKP
GND IOC1/2 DELAY
OUTPUT RELAY 3
...
OUTPUT RELAY 6
BLOCK 1
BLOCK 2
BLOCK 3
▼
S3 PHASE TOC
PH TOC FUNCTION
PH TOC PKP
PH TOC CURVE
PH TOC TDM
PH TOC RESET
OUTPUT RELAY 3
...
OUTPUT RELAY 6
BLOCK 1
BLOCK 2
BLOCK 3
▼
S3 PHASE IOC1/2
PH IOC1/2 FUNCTION
PH IOC1/2 PKP
PH IOC1/2 DELAY
OUTPUT RELAY 3
...
OUTPUT RELAY 6
BLOCK 1
BLOCK 2
BLOCK 3
▼
898758A1. cdr
S3 THERMAL MODEL
THERMAL MDL FUNC
THERMAL MDL PKP
THERMAL MDL ALARM
HEAT TIME CONSTANT
COOL TIME CONSTANT
OUTPUT RELAY 3
...
OUTPUT RELAY 6
BLOCK 1
BLOCK 2
BLOCK 3
▼
S3 NEGATIVE SEQ IOC
NEGATIVE SEQ IOC FUNCTN
PKP
DELAY
OUTPUT RELAY 3
...
OUTPUT RELAY 6
BLOCK 1
BLOCK 2
BLOCK 3
NEGATIVE SEQ IOC
NEGATIVE SEQ IOC
▼
S3 NTRL DIRECTIONAL
NTRL DIR FUNCTION
NTRL DIR POLARIZING
NTRL DIR MTA
MIN POL VOLTAGE
OUTPUT RELAY 3
...
OUTPUT RELAY 6
BLOCK 1
BLOCK 2
BLOCK 3
▼
S3 GND DIRECTIONAL
GND DIR FUNCTION
GND DIR MTA
MIN POL VOLTAGE
OUTPUT RELAY 3
...
OUTPUT RELAY 6
BLOCK 1
BLOCK 2
BLOCK 3
▼