Features - GE L90 Instruction Manual

CHAPTER 2: PRODUCT DESCRIPTION
Table 2-2: Other device functions
Function
2
Breaker Arcing Current (I t)
Breaker Control
Breaker Flashover
Broken Conductor Detection
Contact Inputs (up to 96)
Contact Outputs (up to 64)
Control Pushbuttons
CT Failure Detector
CyberSentry™ Security
Data Logger
Digital Counters (8)
Digital Elements (48)
Direct Inputs (8 per L90 comms channel)
Disconnect Switches
DNP 3.0 or IEC 60870-5-104 protocol
Event Recorder

2.1.2 Features

2.1.2.1 Line current differential
• Phase segregated, high-speed digital current differential system
• Overhead and underground AC transmission lines, series compensated lines
L90 LINE CURRENT DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL
Figure 2-1: Single-line diagram
Function
Fault Locator
Fault Reporting
FlexElements™ (8)
FlexLogic™ Equations
IEC 60870-5-103 Communications
IEC 61850 Communications
IEC 62351-9 Data and Communications
Security
L90 Channel Tests
Line Pickup
Load Encroachment
Metering: Current, Voltage, Power, Energy,
Frequency, Demand, Power Factor, 87L
current, local and remote phasors,
harmonics, THD
Modbus Communications
Modbus User Map
Non-Volatile Latches
Non-Volatile Selector Switch
Open Pole Detector
PRODUCT DESCRIPTION
Function
Oscillography
Pilot Schemes
Setting Groups (6)
Stub Bus
Synchrophasor (PMU)
Time synchronization over IRIG-B or IEEE
1588
Time Synchronization over SNTP
Transducer Inputs/Outputs
User Definable Displays
User Programmable LEDs
User Programmable Pushbuttons
User Programmable Self-Tests
Virtual Inputs (64)
Virtual Outputs (96)
VT Fuse Failure
2
2-3