BE1-BPR Application
2-19
Breaker Failure Logic 1 For Enhanced Relays (BFL1E)
BFL1E logic provides the following application features:
1.
Three-Pole Tripping BF Logic (No input or output latch-in provided). Three BFI inputs are available at
IN3, IN4, and IN5 to start delay timer T1. If the BFI inputs are not reset by the time timer 1 times out and
either the phase fault detector (F1) or neutral fault detector (F2) is picked up, then BFO1 (OUT1) closes,
tripping the backup breakers. Refer to the breaker failure timing diagram in Section 1 for information on
setting the delay and control timers.
2.
No Current BF Logic (No input or output latch-in provided). Some faults may not provide current to the
CTs (i.e. internal transformer failures). In this case, a BFI input is available (IN6) to start delay timer T2.
This input is not supervised by a fault detector. If the BFI input is not reset by the time the timer times
out, BFO2 (OUT2) closes, tripping the backup breakers. Refer to the breaker failure timing diagram in
Section 1 for information on setting the delay and control timers.
3.
Trip Coil Status Monitor. Preprogrammed logic is provided using IN1 to provide breaker status and IN2
for trip coil continuity. Refer to
Application Data in this section for further details on the circuit operation.
4.
Breaker Arc Protection. Preprogrammed logic is provided using fault detector 3 (F3) for the MAF fault
detector, IN1 for breaker status and OUT4 for the arc detector output. Refer to
Application Data in this
section for further details on the circuit operation.
5.
Block Reclose Output. Preprogrammed logic is provided using breaker resistor protection output (O13)
to drive the block reclose (BR) output (OUT3). Refer to
Application Data in this section for further details
on the circuit operation.
Содержание BE1-BPR
Страница 1: ...Publication 9 2720 00 990 Revision E 12 98 INSTRUCTION MANUAL for BE1 BPR BREAKER PROTECTION RELAY...
Страница 31: ...BE1 BPR Application 2 17...
Страница 41: ...BE1 BPR Human Machine Interface 3 3 Figure 3 3 BE1 BPR Relay Horizontal Mount Front And Rear Views...
Страница 42: ...3 4 BE1 BPR Human Machine Interface Figure 3 4 BE1 BPR Relay Vertical Mount Front View...
Страница 43: ...BE1 BPR Human Machine Interface 3 5 Figure 3 5 BE1 BPR Relay Vertical Mount Rear View...
Страница 49: ...4 6 BE1 BPR Functional Description Figure 4 2 Enhanced BE1 BPR Menu Display Screens...
Страница 50: ...BE1 BPR Functional Description 4 7 Figure 4 3 Standard BE1 BPR Menu Display Screens...
Страница 94: ...5 4 BE1 BPR BESTlogic Figure 5 1 BESTlogic Function Blocks...
Страница 120: ...7 2 BE1 BPR Installation Figure 7 1 Overall Dimensions Figure 7 2 Cutout Dimensions Panel Mount...
Страница 121: ...BE1 BPR Installation 7 3 Figure 7 3 Overall Dimensions Vertical Mount...
Страница 122: ...7 4 BE1 BPR Installation Figure 7 4 Overall Dimensions Side View Vertical Mount...
Страница 123: ...BE1 BPR Installation 7 5 Figure 7 5 Panel Drilling Diagram Vertical Mount...