5-232
G60 Generator Protection System
GE Multilin
5.6 GROUPED ELEMENTS
5 SETTINGS
5
INVERSE CURVE B:
The curve for the Volts/Hertz Inverse Curve B shape is derived from the formula:
(EQ 5.30)
where:
T
= Operating Time
TDM
= Time Delay Multiplier (delay in sec.)
V
= fundamental RMS value of voltage (pu)
F
= frequency of voltage signal (pu)
Pickup
= volts-per-hertz pickup setpoint (pu)
The volts/hertz inverse B curves are shown below.
Figure 5–120: VOLTS-PER-HERTZ CURVES, INVERSE CURVE B
INVERSE CURVE C:
The curve for the Volts/Hertz Inverse Curve C shape is derived from the formula:
(EQ 5.31)
where:
T
= Operating Time
TDM
= Time Delay Multiplier (delay in sec.)
V
= fundamental RMS value of voltage (pu)
F
= frequency of voltage signal (pu)
Pickup
= volts-per-hertz pickup setpoint (pu)
T
TDM
V
F
----
Pickup
⁄
1
–
----------------------------------------------
when
V
F
----
Pickup
>
=
T
ime
to
trip
(i
n
seconds)
Multiples of volts per hertz pickup
830739A1.CDR
Time
delay
setting
T
TDM
V
F
----
Pickup
⁄
0.5
1
–
-----------------------------------------------------
when
V
F
----
Pickup
>
=
Summary of Contents for Multilin g60
Page 10: ...x G60 Generator Protection System GE Multilin TABLE OF CONTENTS INDEX ...
Page 32: ...1 22 G60 Generator Protection System GE Multilin 1 5 USING THE RELAY 1 GETTING STARTED 1 ...
Page 160: ...4 30 G60 Generator Protection System GE Multilin 4 3 FACEPLATE INTERFACE 4 HUMAN INTERFACES 4 ...
Page 486: ...5 326 G60 Generator Protection System GE Multilin 5 10 TESTING 5 SETTINGS 5 ...
Page 518: ...6 32 G60 Generator Protection System GE Multilin 6 5 PRODUCT INFORMATION 6 ACTUAL VALUES 6 ...
Page 532: ...7 14 G60 Generator Protection System GE Multilin 7 2 TARGETS 7 COMMANDS AND TARGETS 7 ...
Page 748: ...D 10 G60 Generator Protection System GE Multilin D 1 IEC 60870 5 104 APPENDIX D D ...
Page 760: ...E 12 G60 Generator Protection System GE Multilin E 2 DNP POINT LISTS APPENDIX E E ...