GE L90 Instruction Manual page 35

2 PRODUCT DESCRIPTION
Remove Decaying
Offset and
Charging Current
Phaselets
GE Multilin
Peer
Communication
Ping-pong
Time Stamp
Clock
Algorithm
Clock
Control
Sampling
Control
Sample
Compute
Currents and
Frequency
Voltages
Deviation
Raw
Sample
Compute Positive
Sequence
Currents
Compute
Phaselets
Phaselets
Align Phaselets
Compute Phasors and
Variance Parameters
Disturbance
Detector
Figure 2–4: MAIN SOFTWARE MODULES
L90 Line Differential Relay
Peer
Time
Stamps
Estimate
Phase Angle
Uncertainties
Phase
Deviation
Estimate Phase
Angle Correction
Phase Deviation
from GPS signal
Frequency
Deviation
Phasors
Phaselets
Fault
Detector
Trip Output
Logic
2.3 FUNCTIONALITY
Channel
Control
831749A1.CDR
2-11
2