Sel 551 - Settings Sheets for the SEL-551 Relay

Date Code 20110408 Instruction Manual SEL-551 Relay
Date _______________ SET.1 of 12Settings Sheets for the SEL-551 Relay
Relay Settings (SET Command)
Settings Sheets for the
SEL-551 Relay
Relay Settings (SET Command)
Identifier Labels (see Settings Explanations on page 4.18)
Relay Identifier (12 characters)
RID =
Terminal Identifier (12 characters)
TID =
Current Transformer Ratios (see Settings Explanations on page 4.18)
Phase (IA, IB, IC) Current Transformer Ratio (1–6000) CTR =
Neutral (IN) Current Transformer Ratio (1–6000)
CTRN =
Minimum Trip Duration Timer (see Figure 3.13)
Min. Trip Duration Time
(0–8000 cycles in 0.125-cycle increments)
TDURD =
Phase Instantaneous Overcurrent Elements 50P1–50P6 (see Figure 3.4)
Pickup
(OFF, 0.5–80.0 A in 0.1 A increments) (5 A nominal)
(OFF, 0.1–16.0 A in 0.1 A increments) (1 A nominal)
50P1P =
Pickup
(OFF, 0.5–80.0 A in 0.1 A increments) (5 A nominal)
(OFF, 0.1–16.0 A in 0.1 A increments) (1 A nominal)
50P2P =
Pickup
(OFF, 0.5–80.0 A in 0.1 A increments) (5 A nominal)
(OFF, 0.1–16.0 A in 0.1 A increments) (1 A nominal)
50P3P =
Pickup
(OFF, 0.5–80.0 A in 0.1 A increments) (5 A nominal)
(OFF, 0.1–16.0 A in 0.1 A increments) (1 A nominal)
50P4P =
Pickup
(OFF, 0.5–80.0 A in 0.1 A increments) (5 A nominal)
(OFF, 0.1–16.0 A in 0.1 A increments) (1 A nominal)
50P5P =
Pickup
(OFF, 0.5–80.0 A in 0.1 A increments) (5 A nominal)
(OFF, 0.1–16.0 A in 0.1 A increments) (1 A nominal)
50P6P =