
GEK-113285A
G650 Generator Protection & Control System
5-119
5 SETTINGS
5.6 INPUTS/OUTPUTS
5
f) WITH DOUBLE VOLTAGE SUPERVISION AND SERIAL RESISTOR IN VOLTAGE MONITORS.
Figure 5–35:shows the supervision scheme with an external resistor.
An external series resistor is used with the 52a voltage monitor to prevent CB tripping with a short-circuited voltage monitor.
With CB open, 52/a is open and 52/b is closed. A shorted 52/a voltage monitor will not cause a trip because 52/b voltage
monitor is current limited to 2mA. With a shorted 52/b voltage monitor, no false trip will be performed because 52/a is in
series limiting current to 2mA.
Figure 5–35: SUPERVISION APPLICATION WITH AUXILIARY CONTACTS 52A AND 52B AND SERIES RESISTOR IN
F15-F16
Summary of Contents for Multilin G650
Page 9: ...8 G650 Generator Protection Control System GEK 113285A TABLE OF CONTENTS ...
Page 426: ...GEK 113285A G650 Generator Protection Control System A 31 APPENDIX A A 1 LOGIC OPERANDS A ...
Page 427: ...A 32 G650 Generator Protection Control System GEK 113285A A 1 LOGIC OPERANDS APPENDIXA A ...
Page 587: ...C 22 G650 Generator Protection Control System GEK 113285A C 8 ANALOG INPUTS APPENDIXC C ...
Page 639: ...G 2 G650 Generator Protection Control System GEK 113285A G 1 GE MULTILIN WARRANTY APPENDIXG G ...