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2.1 INTRODUCTION
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Breaker arcing current
MONITORING:
Oscillography of current, voltage, FlexLogic operands, and digital signals (1 128 cycles to 31 8 cycles configurable)
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Events recorder: 1024 events
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Fault locator
2
METERING:
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Actual 87L remote phasors, differential current, channel delay, and channel asymmetry at all line terminals of line cur-
rent differential protection
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Line current, voltage, real power, reactive power, apparent power, power factor, and frequency
COMMUNICATIONS:
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Front panel RS232 port: 19.2 kbps
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Rear RS485 port: up to 115 kbps
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Rear 100Base-FX Ethernet port supporting the IEC 61850 protocol
a) OVERVIEW
The L90 is available as a 19-inch rack horizontal mount or reduced-size (¾) vertical unit and consists of the following mod-
ules: power supply, CPU, CT/VT, digital input and output, transducer input and output, and inter-relay communications.
Each of these modules can be supplied in a number of configurations specified at the time of ordering. The information
required to completely specify the relay is provided in the following tables (see chapter 3 for full details of relay modules).
Order codes are subject to change without notice. See the GE Multilin ordering page at
http://www.gedigitalenergy.com/multilin/order.htm
NOTE
The order code structure is dependent on the mounting option (horizontal or vertical) and the type of CT/VT modules (regu-
lar CT/VT modules or the HardFiber
b) ORDER CODES WITH TRADITIONAL CTS AND VTS
The order codes for the horizontal mount units with traditional CTs and VTs are shown below.
Table 2–3: L90 ORDER CODES (HORIZONTAL UNITS)
L90
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*
**
- *
BASE UNIT
L90
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CPU
T
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U
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V
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SOFTWARE
00
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02
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03
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05
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06
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07
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08
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09
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24
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25
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26
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27
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80
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81
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82
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83
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A0
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A2
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A3
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A5
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A6
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A7
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A8
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A9
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AO
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AP
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AQ
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AR
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B0
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B2
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B3
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B5
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B6
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B7
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B8
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B9
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BO
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BP
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BQ
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BR
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C0
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2-4
TM
modules). The order code options are described in the following sub-sections.
*
* - F
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- H
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- L
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- N
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L90 Line Current Differential System
for the latest ordering options.
- S
**
- U
**
- W/X
**
Full Size Horizontal Mount
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Base Unit
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RS485 and Three Multi-mode fiber 100Base-FX (SFP with LC)
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RS485 and Two Multi-mode fiber 100Base-FX (SFP with LC), One 10/100Base-T (SFP with RJ45)
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RS485 and Three 10/100Base-T (SFP with RJ45)
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No software options
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Breaker-and-a-half
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IEC 61850
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Breaker-and-a-half and IEC 61850
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Phasor measurement unit (PMU)
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IEC 61850 and PMU
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Breaker-and-a-half and PMU
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Breaker-and-a-half, IEC 61850, and PMU
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In-zone transformer protection
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In-zone transformer protection and IEC 61850
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In-zone transformer protection and PMU
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In-zone transformer protection, IEC 61850, and PMU
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In-zone transformer and Breaker-and-a-half
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In-zone transformer, IEC 61850, and Breaker-and-a-half
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In-zone transformer, Breaker-and-a-half, and PMU
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In-zone transformer, IEC 61850, Breaker-and-a-half, and PMU
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CyberSentry Lvl 1
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CyberSentry Lvl 1 and Breaker-and-a-half
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CyberSentry Lvl 1 and IEC 61850
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CyberSentry Lvl 1, IEC 61850, and Breaker-and-a-half
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CyberSentry Lvl 1 and PMU
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CyberSentry Lvl 1, IEC 61850, and PMU
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CyberSentry Lvl 1, PMU, and Breaker-and-a-half
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CyberSentry Lvl 1, IEC 61850, PMU, and Breaker-and-a-half
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CyberSentry Lvl 1 and In-zone transformer protection
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CyberSentry Lvl 1, IEC 61850, and In-zone transformer protection
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CyberSentry Lvl 1, PMU, and In-zone transformer protection
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CyberSentry Lvl 1, IEC 61850, PMU, and In-zone transformer protection
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IEEE 1588
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IEEE 1588 and Breaker-and-a-half
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IEEE 1588 and IEC 61850
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IEEE 1588, IEC 61850, and Breaker-and-a-half
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IEEE 1588 and PMU
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IEEE 1588, IEC 61850, and PMU
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IEEE 1588, PMU, and Breaker-and-a-half
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IEEE 1588, IEC 61850, PMU, and Breaker-and-a-half
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IEEE 1588 and In-zone transformer protection
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IEEE 1588, IEC 61850, and In-zone transformer protection
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IEEE 1588, PMU, and In-zone transformer protection
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IEEE 1588, IEC 61850, PMU, and In-zone transformer protection
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Parallel Redundancy Protocol (PRP)
2 PRODUCT DESCRIPTION
2.1.3 ORDERING
GE Multilin
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