GE D30 Instruction Manual page 34

2.1 INTRODUCTION
Table 2–1: ANSI DEVICE NUMBERS AND FUNCTIONS
DEVICE FUNCTION
NUMBER
21G Ground Distance
21P Phase Distance
25 Synchrocheck
2
27P Phase Undervoltage
27X Auxiliary Undervoltage
49 Thermal Overload Protection
50DD Current Disturbance Detector
50G Ground Instantaneous Overcurrent
50N Neutral Instantaneous Overcurrent
50P Phase Instantaneous Overcurrent
50_2 Negative Sequence Instantaneous Overcurrent
51G Ground Time Overcurrent
51N Neutral Time Overcurrent
Table 2–2: OTHER DEVICE FUNCTIONS
FUNCTION
Breaker arcing current (I
Breaker control
Broken conductor detection
Contact inputs (up to 96)
Contact outputs (up to 64)
Control pushbuttons
2-2
Figure 2–1: SINGLE LINE DIAGRAM
FUNCTION
2
t) Fault detector and fault report
Fault locator
FlexElements™ (8)
FlexLogic equations
IEC 61870-5-103 communications
(optional)
IEC 61850 communications (optional)
D30 Line Distance Protection System
2 PRODUCT DESCRIPTION
DEVICE FUNCTION
NUMBER
51P Phase Time Overcurrent
51_2 Negative Sequence Time Overcurrent
52 AC Circuit Breaker
59N Neutral Overvoltage
59P Phase Overvoltage
59X Auxiliary Overvoltage
59_2 Negative Sequence Overvoltage
67N Neutral Directional Overcurrent
67P Phase Directional Overcurrent
67_2 Negative Sequence Directional Overcurrent
68 Power Swing Blocking
78 Out-of-Step Tripping
79 Automatic Recloser
FUNCTION
Setting groups (6)
Time synchronization over IRIG-B or
IEEE 1588
Time synchronization over SNTP
Transducer inputs and outputs
Trip bus
User-definable displays
GE Multilin