BE1-951
Reporting and Alarm Functions
6-21
Table 6-11. Fault Reporting Trigger Settings
Function
Purpose
Default
TRIP trigger
Logic expression used to define Trip fault reporting
condition. When this expression becomes TRUE (1),
it triggers data recording.
VO11+BFT
PU trigger
Logic expression used to define Pickup fault reporting
condition. When this expression becomes TRUE (1),
it initiates the pickup timing sequence.
VO12+BFPU
LOGIC trigger
Logic expression used to define the trigger for fault
reporting when relay is not picked up. When this
expression is TRUE (1), fault reporting is triggered.
0
SG-TRIGGER Command
Purpose:
Read or set fault reporting trigger logic.
Syntax:
SG-TRIGGER[=<TRIP trigger>,<PU trigger>,<LOGIC trigger>]
Comments:
The BESTlogic rules for input logic allow only OR and NOT operators in the Boolean logic
equations. See Table 6-10 for SG-TRIGGER settings information.
SG-TRIGGER Command Example
1.
Set the trigger logic so that targets start logging for an event when the trip logic expression (VO11) is
TRUE or when breaker failure trip is TRUE. Time-stamp the fault record and start measuring fault
clearing time when the pickup logic expression VO12 is TRUE.
>SG-TRIGGER=VO11+BFT,VO12,0
Targets
Each protective function logs target information to the fault reporting function when a trip condition occurs
and the trip output of the function block becomes TRUE (refer to Figure 6-1 and Table 6-8, call-out B). Target
information can be viewed and reset at the HMI and through the communication ports.
Target logging for a protective function can be disabled if the function is used in a supervisory or monitoring
capacity. The following paragraphs describe how the relay is programmed to define which protective
functions log targets.
Table 6-12. Protective Functions with Targets
Protective Function
Name
Default
Phase undervoltage
27P
Enabled
Auxiliary undervoltage
27X
Enabled
Negative sequence overvoltage
47
Enabled
Negative sequence overcurrent
46
Enabled
Phase overvoltage
59P
Enabled
Auxiliary overvoltage
59X
Enabled
Phase instantaneous OC with settable time delay
50TP
Enabled
2
nd
Phase instantaneous OC with settable time delay
150TP
Enabled
Neutral instantaneous OC with settable time delay
50TN
Enabled
2
nd
Neutral instantaneous OC with settable time delay
150TN
Enabled
Neutral inverse time OC
51N
Enabled
2
nd
Neutral inverse time OC
151N
Enabled
Содержание BE1-951
Страница 157: ...BESTlogic Programmable Logic BE1 951 7 2 Figure 7 1 BESTlogic Function Blocks Courtesy of NationalSwitchgear com...
Страница 238: ...BE1 951 Human Machine Interface 10 5 Figure 10 5 Metering Menu Branch Structure Courtesy of NationalSwitchgear com...
Страница 239: ...10 6 Human Machine Interface BE1 951 Figure 10 6 Reports Menu Branch Structure Courtesy of NationalSwitchgear com...
Страница 270: ...12 2 Installation BE1 951 Figure 12 1 BE1 951 S1 Case Dimensions Courtesy of NationalSwitchgear com...
Страница 274: ...12 6 Installation BE1 951 Figure 12 5 BE1 951 H1 Case Dimensions Courtesy of NationalSwitchgear com...
Страница 283: ...BE1 951 Installation 12 15 Figure 12 16 Typical AC Connections Courtesy of NationalSwitchgear com...
Страница 394: ...A 18 Appendix BE1 951 Figure A 14 Time Characteristic Curve B Very Inverse 99 1376 Courtesy of NationalSwitchgear com...
Страница 396: ...A 20 Appendix BE1 951 Figure A 16 Time Characteristic Curve G Long Inverse 99 1622 Courtesy of NationalSwitchgear com...
Страница 397: ...BE1 951 Appendix A 21 Figure A 17 46 Time Characteristic Curve Courtesy of NationalSwitchgear com...