Schweitzer Engineering Laboratories SEL-311C - Settings Sheets for the SEL-311 C Relay

Date Code 20060320 Instruction Manual SEL-311C Relay
Date _______________ SET.1 of 32Settings Sheets for the SEL-311C Relay
Relay Settings (Serial Port Command SET and Front Panel)
Settings Sheets for the SEL-311C Relay
Relay Settings
(Serial Port Command SET and Front Panel)
Identifier Labels (See Settings Explanations on page 9.33)
Relay Identifier (30 characters) RID =
Terminal Identifier (30 characters)
TID =
Current and Potential Transformer Ratios
(See Settings Explanations on page 9.33)
Phase (IA, IB, IC) Current Transformer Ratio (1–6000) CTR =
Polarizing (IPOL) Current Transformer Ratio (1–6000)
CTRP =
Phase (VA, VB, VC) Potential Transformer Ratio
(1.00–10000.00)
PTR =
Synchronism Voltage (VS) Potential Transformer Ratio
(1.00–10000.00)
PTRS =
Line Settings (See Settings Explanations on page 9.33)
Positive-sequence line impedance magnitude
(0.05–255.00 Ω secondary {5 A nom.};
0.25–1275.00 Ω secondary {1 A nom.})
Z1MAG =
Positive-sequence line impedance angle (5.00–90.00 degrees)
Z1ANG =
Zero-sequence line impedance magnitude
(0.05–255.00 Ω secondary {5 A nom.};
(0.25–1275.00 Ω secondary {1 A nom.})
Z0MAG =
Zero-sequence line impedance angle (5.00–90.00 degrees)
Z0ANG =
Line length (0.10–999.00, unitless)
LL =
Application Settings
(See Section 14: Application Settings for SEL-221 Series Relays)
Application (311C, 221G, 221G5, 221H, 221F, 221F3, 221C,
221-16, 2PG10)
APP =
Distance Settings
Mho phase distance element zones (N, 1–4, 1C–4C)
(see Figure 3.1–Figure 3.3)
E21P =
Mho ground distance element zones (N, 1–4)
(see Figure 3.7–Figure 3.9)
E21MG =