GE Multilin
M60 Motor Protection System
5-179
5 SETTINGS
5.6 GROUPED ELEMENTS
5
•
UNDERPOWER 1 TRIP PICKUP DLY
: This setting specifies a time delay for the trip stage. This time delay should be
long enough to overcome any short lowering of the current (for example, during system faults).
•
UNDERPOWER 1 TRIP RESET DLY
: This setting specifies a time delay to reset the trip command. This delay should
be set long enough to allow breaker or contactor to disconnect the motor.
•
UNDERPOWER 1 BLOCK
: This setting specifies an operand used to block the underpower function. A panel cutoff
switch or other user specified condition is typically used to block the function.
Figure 5–84: UNDERPOWER LOGIC
833025A1.CDR
Sop = sum (Sa + Sb + Sc)
SETTING
= Ia
= Ib
MOTOR LINE SOURCE
= Ic
VOLTAGE CONNECTION
Vab
Wye
Delta
Vca
Vbc
Vag
Vcg
Vbg
CALCULATE
FLEXLOGIC OPERAND
MOTOR OFFLINE
AND
AND
AND
= Off
UNDERPOWER 1 BLOCK
SETTINGS
= Enabled
UNDERPOWER 1
FUNCTION
COMPARATORS
magnitude Ia > 0.1 × FLA
magnitude Ib > 0.1 × FLA
magnitude Va > 0.25 pu
magnitude Ic > 0.1 × FLA
magnitude Vb > 0.25 pu
magnitude Vc > 0.25 pu
AND
T
PKP
0
SETTING
UNDERPOWER 1 START
BLOCK DLY
AND
SETTINGS
UNDERPOWER 1 ALARM
PWR PICKUP
RUN
Sop < ALARM PICKUP
RUN
Sop < TRIP PICKUP
UNDERPOWER 1 TRIP
PWR PICKUP
SETTINGS
UNDERPOWER 1 TRIP
PICKUP DLY
UNDERPOWER 1 TRIP
RESET DLY
T
PKP
0
UNDERPOWER 1 ALARM
PICKUP DLY
T
PKP
T
RST
FLEXLOGIC OPERAND
UNDERPWR 1 ALARM OP
FLEXLOGIC OPERANDS
UNDERPWR 1 ALARM PKP
UNDERPWR 1 ALARM DPO
UNDERPWR 1 TRIP PKP
UNDERPWR 1 TRIP DPO
FLEXLOGIC OPERAND
UNDERPWR 1 TRIP OP
Summary of Contents for M60 UR Series
Page 10: ...x M60 Motor Protection System GE Multilin TABLE OF CONTENTS ...
Page 128: ...4 30 M60 Motor Protection System GE Multilin 4 3 FACEPLATE INTERFACE 4 HUMAN INTERFACES 4 ...
Page 410: ...5 282 M60 Motor Protection System GE Multilin 5 10 TESTING 5 SETTINGS 5 ...
Page 440: ...6 30 M60 Motor Protection System GE Multilin 6 5 PRODUCT INFORMATION 6 ACTUAL VALUES 6 ...
Page 452: ...7 12 M60 Motor Protection System GE Multilin 7 2 TARGETS 7 COMMANDS AND TARGETS 7 ...
Page 462: ...9 8 M60 Motor Protection System GE Multilin 9 2 BATTERIES 9 MAINTENANCE 9 ...
Page 474: ...A 12 M60 Motor Protection System GE Multilin A 1 PARAMETER LISTS APPENDIX A A ...
Page 584: ...B 110 M60 Motor Protection System GE Multilin B 4 MEMORY MAPPING APPENDIX B B ...
Page 614: ...C 30 M60 Motor Protection System GE Multilin C 7 LOGICAL NODES APPENDIX C C ...
Page 630: ...E 10 M60 Motor Protection System GE Multilin E 1 IEC 60870 5 104 PROTOCOL APPENDIX E E ...
Page 642: ...F 12 M60 Motor Protection System GE Multilin F 2 DNP POINT LISTS APPENDIX F F ...
Page 644: ...G 2 M60 Motor Protection System GE Multilin G 1 RADIUS SERVER CONFIGURATION APPENDIX G G ...
Page 652: ...H 8 M60 Motor Protection System GE Multilin H 3 WARRANTY APPENDIX H H ...
Page 662: ...x M60 Motor Protection System GE Multilin INDEX ...