Schweitzer Engineering Laboratories SEL-421-4 - Table 6.21 Settings for 345 Kv Tapped TX Example

6.83
Date Code 20171021 Instruction Manual SEL-421 Relay
Protection Applications Examples
345 kV Tapped Overhead Transmission Line Example
Table 6.21 Settings for 345 kV Tapped TX Example (Sheet 1 of 4)
Setting Prompt Entry
General Global (Global)
SID Station Identifier (40 characters) KELLOG --345 kV
RID Relay Identifier (40 characters) SEL-421 Relay
NUMBK Number of Breakers in Scheme (1, 2) 1
BID1 Breaker 1 Identifier (40 characters) Circuit Breaker 1
NFREQ Nominal System Frequency (50, 60 Hz) 60
PHROT System Phase Rotation (ABC, ACB) ABC
DATE_F Date Format (MDY, YMD, DMY) MDY
FAULT Fault Condition Equation (SEL
OGIC Equation) 50P1 OR 51S1 OR Z2P OR Z2G OR Z3P
OR Z3G
Current and Voltage Source Selection Settings (Global)
ESS Current and Voltage Source Selection (Y, N, 1, 2, 3, 4) N
Breaker Configuration (Breaker Monitoring)
EB1MON Breaker 1 Monitoring (Y, N) N
BK1TYP Breaker 1 Trip Type (Single Pole = 1, Three Pole = 3) 3
Breaker 1 Inputs (Breaker Monitoring)
52AA1 A-Phase N/O Contact Input—BK1 (SELOGIC Equation) IN101
Line Configuration (Group)
CTRW Current Transformer Ratio—Input W (1–50000) 200
CTRX Current Transformer Ratio—Input X (1–50000) 200
PTRY Potential Transformer Ratio—Input Y (1–10000) 3000.0
VNOMY PT Nominal Voltage (L-L)—Input Y (60–300 V secondary) 115
PTRZ Potential Transformer Ratio—Input Z (1–10000) 3000.0
VNOMZ PT Nominal Voltage (L-L)—Input Z (60–300 V secondary) 115
Z1MAG Positive-Sequence Line Impedance Magnitude (0.05–255  secondary) 4.00
Z1ANG Positive-Sequence Line Impedance Angle (5.00–90 degrees) 84.7
Z0MAG Zero-Sequence Line Impedance Magnitude (0.05–255  secondary) 12.88
Z0ANG Zero-Sequence Line Impedance Angle (5.00–90 degrees) 73.0
EFLOC Fault Location (Y, N) Y
LL Line Length (0.10–999) 100.00
Relay Configuration (Group)
E21P Mho Phase Distance Zones (N, 1–5) 3
E21MG Mho Ground Distance Zones (N, 1–5) 3
E21XG Quadrilateral Ground Distance Zones (N, 1–5) N
ECVT CVT Transient Detection N
ESERCMP Series-Compensated Line Logic (Y, N) N
ECDTD Distance Element Common Time Delay (Y, N) Y
ESOTF Switch-Onto-Fault (Y, N) Y
EOOS Out-of-Step (Y, Y1, N) N
ELOAD Load Encroachment (Y, N) Y
E50P Phase Inst./Def.-Time O/C Elements (N, 1–4) 1