GE t60 Instruction Manual page 309

5 SETTINGS
SETTING
POWER SWING
FUNCTION:
Disabled = 0
Enabled = 1
SETTING
POWER SWING SOURCE:
V_1
I_1
Figure 5–90: POWER SWING DETECT SCHEME LOGIC (1 of 3)
SETTING
POWER SWING FUNCTION:
Disabled = 0
Enabled = 1
SETTING
POWER SWING SOURCE:
I_0
I_1
I_2
Figure 5–91: POWER SWING DETECT SCHEME LOGIC (2 of 3)
GE Multilin
SETTINGS
POWER SWING POWER SWING OUTER
SHAPE: LIMIT ANGLE:
POWER SWING FWD POWER SWING MIDDLE
REACH: LIMIT ANGLE:
POWER SWING QUAD POWER SWING INNER
FWD REACH MID: LIMIT ANGLE:
POWER SWING QUAD POWER SWING OUTER
FWD REACH OUT: RGT BLD:
POWER SWING FWD POWER SWING OUTER
RCA: LFT BLD:
POWER SWING REV POWER SWING MIDDLE
REACH: RGT BLD:
POWER SWING QUAD REV POWER SWING MIDDLE
REACH MID: LFT BLD:
POWER SWING QUAD REV POWER SWING INNER
REACH OUT: RGT BLD:
POWER SWING REV POWER SWING INNER
RCA: LFT BLD:
RUN
OUTER IMPEDANCE
REGION
RUN
MIDDLE IMPEDANCE
REGION
RUN
INNER IMPEDANCE
REGION
SETTING
POWER SWING
SUPV:
RUN
I_1 > PICKUP
RUN
| |I_0| - |I_0'|| > K_0
| |I_1| - |I_1'|| > K_1
| |I_2| - |I_2'|| > K_2
I_0, I_1, I_2 - present values
I_0', I_1', I_2' - half-a-cycle old values
K_0, K_2 - three times the average change over last power cycle
K_1 - four times the average change over last power cycle
T60 Transformer Protection System
5.6 GROUPED ELEMENTS
FLEXLOGIC OPERAND
AND POWER SWING OUTER
FLEXLOGIC OPERAND
AND POWER SWING MIDDLE
FLEXLOGIC OPERAND
AND POWER SWING INNER
827840A3.CDR
TIMER
0
10 cycles
TIMER
FLEXLOGIC OPERAND
0
POWER SWING 50DD
4 cycles
5
842008A1.CDR
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