2-4
L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL
PRODUCT DESCRIPTION
CHAPTER 2: PRODUCT DESCRIPTION
2
Table 2-1: ANSI device numbers and functions supported
Figure 2-2: Single-line diagram
Table 2-2: Other device functions
Device
number
Function
Device
number
Function
21G
Ground distance
51P
Phase time overcurrent
21P
Phase distance
51_2
Negative-sequence time overcurrent
25
Synchrocheck
52
AC circuit breaker
27P
Phase undervoltage
59C
Compensated overvoltage
27X
Auxiliary undervoltage
59N
Neutral overvoltage
32N
Wattmetric zero-sequence directional
59P
Phase overvoltage
49
Thermal overload protection
59X
Auxiliary overvoltage
50BF
Breaker failure
59_2
Negative-sequence overvoltage
50DD
Disturbance detector
67N
Neutral directional overcurrent
50G
Ground instantaneous overcurrent
67P
Phase directional overcurrent
50N
Neutral instantaneous overcurrent
67_2
Negative-sequence directional overcurrent
50P
Phase instantaneous overcurrent
68
Power swing blocking
50_2
Negative-sequence instantaneous overcurrent
78
Out-of-step tripping
51G
Ground time overcurrent
79
Automatic recloser
51N
Neutral time overcurrent
87PC
Phase comparison
Function
Function
Breaker Arcing Current (I
2
t)
Line Pickup
Breaker Control
Load Encroachment
Breaker Flashover
Metering: Current, Voltage, Power, Frequency
Breaker Restrike
Modbus Communications
Contact Inputs (up to 120)
Modbus User Map
Contact Outputs (up to 72)
Non-Volatile Latches
Control Pushbuttons
Non-Volatile Selector Switch
CT Failure Detector
Open Breaker Echo
CyberSentry™ Security
Open Pole Detector
Data Logger
Oscillography