Sel 751A Instruction Manual page 609

Table J.2 Relay Word Bit Definitions for the SEL-751A (Sheet 4 of 11)
Bit Definition
59P1 Phase Overvoltage Trip 1 Pickup (see
59P1T Phase Overvoltage Trip 1 Output (see
59P2 Phase Overvoltage Trip 2 Pickup (see
59P2T Phase Overvoltage Trip 2 Output (see
59Q1 Level 1 Negative-Sequence Overvoltage Element Pickup.
59Q1T Level 1 Negative-Sequence Overvoltage Element Trip.
59Q2 Level 2 Negative-Sequence Overvoltage Element Pickup.
59Q2T Level 2 Negative-Sequence Overvoltage Element Trip.
59S1 Level 1 VS Channel Overvoltage Element Pickup.
59S1T Level 1 VS Channel Over Voltage Element With Time Delay.
59S2 Level 2 VS Channel Over Voltage Element Pickup.
59S2T Level 2 VS Channel Over Voltage Element With Time Delay.
59VP Phase Voltage window element (selected phase voltage [VP] between settings 25VLO and
25VHI).
59VS VS Channel Voltage window element (selected phase voltage [VS] between settings 25VLO and
25VHI).
79RS Reclosing Relay in Reset State.
79CY Reclosing Relay in Reclose Cycle State.
79LO Reclosing Relay in Lockout State.
81D1T Definite-Time Over- and Underfrequency Element (Trip Level 1). Asserts when the frequency
has been either above or below the element set point for a definite time (see
81D2T Definite-Time Over- and Underfrequency Element (Trip Level 2). Asserts when the frequency
has been either above or below the element set point for a definite time (see
81D3T Definite-Time Over- and Underfrequency Element (Trip Level 3). Asserts when the frequency
has been either above or below the element set point for a definite time (see
81D4T Definite-Time Over- and Underfrequency Element (Trip Level 4). Asserts when the frequency
has been either above or below the element set point for a definite time (see
81D5T Definite-Time Over- and Underfrequency Element (Trip Level 5). Asserts when the frequency
has been either above or below the element set point for a definite time. (see
81D6T Definite-Time Over- and Underfrequency Element (Trip Level 6). Asserts when the frequency
has been either above or below the element set point for a definite time. (see
81R1T Level 1 Rate-of-change of frequency element trip.
81R2T Level 2 Rate-of-change of frequency element trip.
81R3T Level 3 Rate-of-change of frequency element trip.
81R4T Level 4 Rate-of-change of frequency element trip.
AFS1DIAG Arc-Flash Sensor input 1 diagnostic failure.
AFS2DIAG Arc-Flash Sensor input 2 diagnostic failure.
AFS3DIAG Arc-Flash Sensor input 3 diagnostic failure.
AFS4DIAG Arc-Flash Sensor input 4 diagnostic failure.
AFALARM Arc-Flash system integrity alarm (AFS1EL OR AFS2EL OR AFS3EL OR AFS4EL OR
AFS1DIAG OR AFS2DIAG OR AFS3DIAG OR AFS4DIAG)
AFS1EL Arc-Flash Sensor input 1 excessive ambient light pickup for 10 seconds.
AFS2EL Arc-Flash Sensor input 2 excessive ambient light pickup for 10 seconds.
AFS3EL Arc-Flash Sensor input 3 excessive ambient light pickup for 10 seconds.
Date Code 20100129
Figure 4.19).
Figure 4.19).
Figure 4.19).
Figure 4.19).
Instruction Manual
Relay Word Bits
Definitions
Row
10
10
10
10
114
114
114
114
111
111
111
111
110
110
26
26
26
11
Figure 4.27).
11
Figure 4.27).
11
Figure 4.27).
11
Figure 4.27).
11
Figure 4.27).
11
Figure 4.27).
115
115
115
115
115
115
115
115
110
116
116
116
SEL-751A Relay
J.7