GE Multilin
T60 Transformer Protection System
5-281
5 SETTINGS
5.7 CONTROL ELEMENTS
5
5.7.7 FREQUENCY RATE OF CHANGE (ANSI 81R)
PATH: SETTINGS
CONTROL ELEMENTS
FREQUENCY RATE OF CHANGE
FREQUENCY RATE OF CHANGE 1(4)
Four independent rate of change of frequency elements are available. The element responds to rate of change of fre-
quency with voltage, current and frequency supervision.
•
FREQ RATE 1 TREND:
This setting allows configuring the element to respond to increasing or decreasing frequency,
or to frequency change in either direction.
•
FREQ RATE 1 PICKUP:
This setting specifies an intended
pickup threshold. For applications monitoring a
decreasing trend, set
FREQ RATE 1 TREND
to “Decreasing” and specify the pickup threshold accordingly. The operating
condition is:
.
For applications monitoring an increasing trend, set
FREQ RATE 1 TREND
to “Increasing” and specify the pickup thresh-
old accordingly. The operating condition is:
.
For applications monitoring rate of change of frequency in any direction set
FREQ RATE 1 TREND
to “Bi-Directional” and
specify the pickup threshold accordingly. The operating condition is:
•
FREQ RATE 1 OV SUPV PICKUP:
This setting defines minimum voltage level required for operation of the element.
The supervising function responds to the positive-sequence voltage. Overvoltage supervision should be used to pre-
vent operation under specific system conditions such as faults.
•
FREQ RATE 1 OC SUPV PICKUP:
This setting defines minimum current level required for operation of the element.
The supervising function responds to the positive-sequence current. Typical application includes load shedding. Set
the pickup threshold to zero if no overcurrent supervision is required.
FREQUENCY RATE
OF CHANGE 1
FREQ RATE 1
FUNCTION: Disabled
Range: Disabled, Enabled
MESSAGE
FREQ RATE 1 SOURCE:
SRC 1
Range: SRC 1, SRC 2, SRC 3, SRC 4, SRC 5, SRC 6
MESSAGE
FREQ RATE 1 TREND:
Increasing
Range: Increasing, Decreasing, Bi-directional
MESSAGE
FREQ RATE 1 PICKUP:
0.50 Hz/sec
Range: 0.10 to 15.00 Hz/sec in steps of 0.01
MESSAGE
FREQ RATE 1 OV SUPV
PICKUP: 0.700 pu
Range: 0.100 to 3.000 pu in steps of 0.001
MESSAGE
FREQ RATE 1 OC SUPV
PICKUP: 0.200 pu
Range: 0.000 to 30.000 pu in steps of 0.001
MESSAGE
FREQ RATE 1 MIN
FREQUENCY: 45.00 Hz
Range: 20.00 to 80.00 Hz in steps of 0.01
MESSAGE
FREQ RATE 1 MAX
FREQUENCY: 65.00 Hz
Range: 20.00 to 80.00 Hz in steps of 0.01
MESSAGE
FREQ RATE 1 PICKUP
DELAY: 0.000 s
Range: 0 to 65.535 s in steps of 0.001
MESSAGE
FREQ RATE 1 RESET
DELAY: 0.000 s
Range: 0 to 65.535 s in steps of 0.001
MESSAGE
FREQ RATE 1 BLOCK:
Off
Range: FlexLogic operand
MESSAGE
FREQ RATE 1 TARGET:
Self-Reset
Range: Self-Reset, Latched, Disabled
MESSAGE
FREQ RATE 1 EVENTS:
Disabled
Range: Disabled, Enabled
df dt
⁄
df dt
⁄
–
Pickup
>
df dt
⁄
Pickup
>
abs
df dt
⁄
(
)
Pickup
>
Содержание T60
Страница 6: ...vi T60 Transformer Protection System GE Multilin TABLE OF CONTENTS ...
Страница 14: ...xiv T60 Transformer Protection System GE Multilin TABLE OF CONTENTS ...
Страница 34: ...1 20 T60 Transformer Protection System GE Multilin 1 5 USING THE RELAY 1 GETTING STARTED 1 ...
Страница 118: ...3 48 T60 Transformer Protection System GE Multilin 3 3 DIRECT INPUT OUTPUT COMMUNICATIONS 3 HARDWARE 3 ...
Страница 146: ...4 28 T60 Transformer Protection System GE Multilin 4 3 FACEPLATE INTERFACE 4 HUMAN INTERFACES 4 ...
Страница 490: ...5 344 T60 Transformer Protection System GE Multilin 5 10 TESTING 5 SETTINGS 5 ...
Страница 522: ...6 32 T60 Transformer Protection System GE Multilin 6 5 PRODUCT INFORMATION 6 ACTUAL VALUES 6 ...
Страница 536: ...7 14 T60 Transformer Protection System GE Multilin 7 1 COMMANDS 7 COMMANDS AND TARGETS 7 ...
Страница 538: ...8 2 T60 Transformer Protection System GE Multilin 8 1 DIRECTIONAL PRINCIPLE 8 THEORY OF OPERATION 8 ...
Страница 568: ...10 12 T60 Transformer Protection System GE Multilin 10 6 DISPOSAL 10 MAINTENANCE 10 ...
Страница 596: ...A 28 T60 Transformer Protection System GE Multilin A 1 PARAMETER LISTS APPENDIX A A ...
Страница 716: ...B 120 T60 Transformer Protection System GE Multilin B 4 MEMORY MAPPING APPENDIX B B ...
Страница 762: ...E 10 T60 Transformer Protection System GE Multilin E 1 IEC 60870 5 104 PROTOCOL APPENDIX E E ...
Страница 774: ...F 12 T60 Transformer Protection System GE Multilin F 2 DNP POINT LISTS APPENDIX F F ...
Страница 785: ...GE Multilin T60 Transformer Protection System H 9 APPENDIX H H 2 ABBREVIATIONS H Z Impedance Zone ...