GE L60 Instruction Manual page 406

Line phase comparison system ur series
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5.6 CONTROL ELEMENTS
5
In runtime, AR mode can be changed through the mode control logic as shown in the following diagram. Initially, the autore-
closer runs in the mode as per AR MODE setting. Then the relay checks the AR activation inputs in each protection pass.
The AR mode is switched to the new mode when
Only one of four activation inputs is high, and
AP RIP operand is low, and
The mode to be activated is different from the current AR mode
The logic allows activation of one mode at a time. Simultaneous multiple activations are ignored and mode switching does
not happen. However, a FlexLogic operand, AR MODE SWITCH FAIL, is asserted if either simultaneous multiple activa-
tions are initiated, or a single activation is initiated but recloser is already in progress.
5-278
Figure 5–140: SINGLE-POLE AUTORECLOSE LOGIC (Sheet 1 of 3)
L60 Line Phase Comparison System
5 SETTINGS
GE Multilin

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