Functionality; Communications - GE UR Series Instruction Manual

2 PRODUCT DESCRIPTION
MONITORING:
Oscillography of current, voltage, FlexLogic™ operands, and digital signals (1 × 128 cycles to 31 × 8 cycles config-
•
urable)
• Events recorder - 1024 events
• Fault locator
METERING:
• Actual 87L remote phasors, differential current and channel delay at all line terminals of line current differential protec-
tion
• Line current, voltage, real power, reactive power, apparent power, power factor, and frequency

COMMUNICATIONS:

• RS232 front port - 19.2 kbps
• 1 or 2 RS485 rear ports - up to 115 kbps
• 10BaseF Ethernet port supporting MMS/UCA2.0 protocol
The following SINGLE LINE DIAGRAM illustrates relay functionality using ANSI (American National Standards Institute)
device numbers
52
Monitoring
50DD 50P(2)
Data From/To Remote End
(via Dedicated Communications)
L90
Line Differential Relay
GE Power Management
79
CLOSE TRIP
50_2(2) 51P(2) 51_2(2) 50BF(2) 87L
Figure 2–1: SINGLE LINE DIAGRAM
L90 Line Differential Relay
21P 67P(2) 68 78
Metering
TM
FlexElement
50G(2) 51G(2)
2.1 INTRODUCTION

2.1.3 FUNCTIONALITY

3V_0
50N(2) 51N(2) 67N/G 21G
Transducer
Inputs
59P
27P(2)
59N
59X 27X
25(2)
831706AS.CDR
2-3
2