Broken Current Accumulator; Cb Trip Counter; Figure 122: Broken Current Accumulator Logic Diagram; Figure 123: Cb Trip Counter Logic Diagram - GE P4A Technical Manual

P54A/B/C/E
5.1

BROKEN CURRENT ACCUMULATOR

PhaseACurrent
PhaseBCurrent
PhaseCCurrent
Trip 3 ph
External Trip3 ph
Trip Output A
External Trip A
Trip Output B
External Trip B
Trip Output C
External Trip C
Reset CB Data
Reset CB Data

Figure 122: Broken Current Accumulator logic diagram

5.2

CB TRIP COUNTER

Trip 3 ph
External Trip3 ph
Trip Output A
External Trip A
Trip Output B
External Trip B
Trip Output C
External Trip C
Reset CB Data
Reset CB Data
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Figure 123: CB Trip Counter logic diagram

P54xMED-TM-EN-1
t
1
0
t
1
1
0
t
1
1
0
t
1
1
0
1
1
1
1
1
1
1
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Chapter 12 - Monitoring and Control
Set Set Cumulative IA broken In
Reset
Set Set Cumulative IB broken In
Reset
Set Set Cumulative IC broken In
Reset
Note: Broken current totals not incremented when device is in test mode
Note: All timers have 1 cycle pickup delay
Increment
Reset
Increment
Reset
Increment
Reset
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Phase A Trip Counter
Phase B Trip Counter
Phase C Trip Counter
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