GE L30 Instruction Manual page 465

9 APPLICATION OF SETTINGS
17
87L DIFF 1 MAX ASYM
18
NOT
19
87L DIFF GPS FAIL
20
NOT
21
AND(2)
22
87L DIFF 1 MAX ASYM
23
87L DIFF GPS FAIL
24
OR(2)
25
TIMER 3
26
LATCH
27
= GPS ON-GR.2 (VO2)
2. Set the 87L element with different differential settings for Settings Groups 1 and 2 as shown below
3. Enable GPS compensation when the GPS signal is valid and switch to Settings Group 2 (with more sensitive settings)
as shown below.
GE Multilin
9.3 CHANNEL ASYMMETRY COMPENSATION USING GPS
AND(2)
Set
LATCH
Reset
OR(2)
L30 Line Current Differential System
= GPS ON-GR.2 (VO2)
831778A1.CDR
9
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