Ordering - GE UR Series Instruction Manual

2.1 INTRODUCTION
Table 2–1: DEVICE NUMBERS AND FUNCTIONS
DEVICE FUNCTION
NUMBER
21G Ground Distance
21P Phase Distance
25 Synchrocheck
2
27P Phase Undervoltage
27X Auxiliary Undervoltage
50BF Breaker Failure
50DD Adaptive Fault Detector
(sensitive 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
Table 2–2: ADDITIONAL DEVICE FUNCTIONS
FUNCTION
Breaker Arcing Current (I
Breaker Control
Contact Inputs (up to 96)
Contact Outputs (up to 64)
CT Failure Detector
Data Logger
Digital Counters (8)
Digital Elements (16)
Direct Inputs (8 per L90 comms channel)
DNP 3.0
Event Recorder
Fault Locator
Fault Reporting
The relay is available as a 19-inch rack horizontal mount unit or as a reduced size (¾) vertical mount unit, and consists of
power supply, CPU, Digital Input/Output, Transducer I/O and L90 Communications modules. Each of these can be supplied
in a number of configurations which must be specified at the time of ordering. The information required to completely spec-
ify the relay is provided in the following table.
2-4
FUNCTION
2
T) FlexElements™
FlexLogic™ Equations
L90 Channel Tests
Line Pickup
Load Encroachment
Metering: Current, Voltage, Power,
MMS/UCA Communications
MMS/UCA Remote I/O ("GOOSE")
ModBus Communications
ModBus User Map
Open Pole Detector
L90 Line Differential Relay
DEVICE FUNCTION
NUMBER
51N Neutral Time Overcurrent
51P Phase Time Overcurrent
51_2 Negative Sequence Time Overcurrent
52 AC Circuit Breaker
59N Neutral Overvoltage
59P Phase Overvoltage
59X Auxiliary Overvoltage
67N Neutral Directional Overcurrent
67P Phase Directional Overcurrent
68 Power Swing Blocking
78 Out-of-step Tripping
79 Automatic Recloser
87L Segregated Line Current Differential
Energy, Frequency, Demand,
Power Factor, 87L differential
current, local & remote phasors
2 PRODUCT DESCRIPTION
FUNCTION
Oscillography
Pilot Scheme (POTT)
Setting Groups (8)
Stub Bus
Transducer I/O
User Definable displays
User Programmable LEDs
Virtual Inputs (32)
Virtual Outputs (64)
VT Fuse Failure

2.1.4 ORDERING

GE Power Management