9.30
SEL-351A Relay Instruction Manual Date Code 20080213
Setting the Relay
Relay Word Bits (Used in SEL
OGIC Control Equations)
39 ZLOAD
b
ZLOUT + ZLIN (see Figure 4.2)
BCWA A-phase breaker contact wear has reached 100% wear level (see Breaker
Monitor on page 8.2)
Indication
BCWB B-phase breaker contact wear has reached 100% wear level (see Breaker
Monitor on page 8.2)
BCWC C-phase breaker contact wear has reached 100% wear level (see Breaker
Monitor on page 8.2)
*
c
51G2
b
Residual-ground current above pickup setting 51G2P for residual-ground
time-overcurrent element 51G2T (see Figure 3.20)
Testing, Control
51G2T
b
Residual-ground time-overcurrent element 51G2T timed out (see
Figure 3.20)
Tripping
51G2R
b
Residual-ground time-overcurrent element 51G2T reset (see Figure 3.20)Testing
40 ALARM ALARM output contact indicating that relay failed or PULSE ALARM
command executed (see Figure 7.26)
OUT107 Output contact OUT107 asserted (see Figure 7.26)
OUT106 Output contact OUT106 asserted (see Figure 7.26)
OUT105 Output contact OUT105 asserted (see Figure 7.26)
OUT104 Output contact OUT104 asserted (see Figure 7.26)
OUT103 Output contact OUT103 asserted (see Figure 7.26)
OUT102 Output contact OUT102 asserted (see Figure 7.26)
OUT101 Output contact OUT101 asserted (see Figure 7.26)
41 3PO Three pole open condition (see Figure 5.3)Testing
SOTFE Switch-onto-fault logic enable (see Figure 5.3)
*
c
*
c
*
c
*
c
*
c
*
c
42 *
c
*
c
*
c
*
c
*
c
*
c
*
c
*
c
Table 9.6 Relay Word Bit Definitions for SEL-351A (Sheet 13 of 16)
Row Bit Definition Primary Application
Courtesy of NationalSwitchgear.com
To Next Page
Loading...