GE L60 Instruction Manual page 410

8.1 OVERVIEW 8 THEORY OF OPERATION
3. Treating channel receiver inputs as analog signals and sampling the waveform at high speed enables processing of
the receiver outputs that overcomes misbehaviors of the channel that fooled earlier phase comparison implementa-
tions, as explained above.
8
8-32 L60 Line Phase Comparison Relay GE Multilin