GE D90 Plus User manual

GE
Grid Solutions
Instruction Manual
Product version: 1.7x
GE publication code: 1601-9019-D5 (GEK-113240E)
D90Plus
Line Distance Protection System
1601-9019-D5
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Copyright © 2016 GE Multilin Inc. All rights reserved.
D90Plus Line Distance Protection System Instruction Manual for version 1.7x.
D90Plus Controller, EnerVista, EnerVista Launchpad, EnerVista URPlus Setup, FlexLogic,
Multilin, and GE Multilin are trademarks or registered trademarks of GE Multilin Inc.
The contents of this manual are the property of GE Multilin Inc. This documentation is
furnished on license and may not be reproduced in whole or in part without the permission
of GE Multilin. The content of this manual is for informational use only and is subject to
change without notice.
Part number: 1601-9019-D5 (October 2016)

D90PLUS LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL iii
D90Plus Line Distance Protection System
Table of contents
1 GETTING STARTED Important procedures ...................................................................................................1
Cautions and warnings................................................................................................................................1
Inspection checklist.......................................................................................................................................1
Introduction to the URPlus-series.................................................................................2
Hardware architecture ................................................................................................................................3
Firmware architecture .................................................................................................................................4
Communications overview ........................................................................................................................6
EnerVista software.........................................................................................................7
Software requirements................................................................................................................................8
Installing the EnerVista URPlus Setup software.................................................................................8
Software access........................................................................................................................................... 10
2PRODUCT
DESCRIPTION
Device overview............................................................................................................15
Front panel interface .................................................................................................................................16
Protection features.....................................................................................................................................17
Automation features.................................................................................................................................. 20
Equipment manager features ...............................................................................................................21
Metering and monitoring features......................................................................................................22
Digital fault recorder..................................................................................................................................23
Communications .........................................................................................................................................24
Order codes ...................................................................................................................24
Specifications................................................................................................................24
Protection specifications..........................................................................................................................25
Automation specifications ......................................................................................................................36
Equipment manager..................................................................................................................................37
Metering specifications ............................................................................................................................38
Digital fault recorder specifications....................................................................................................39
Front panel interface .................................................................................................................................40
Hardware specifications.......................................................................................................................... 41
Communications specifications ...........................................................................................................43
Inter-relay communications specifications .................................................................................... 44
Test specifications.......................................................................................................................................44
Environmental specifications ................................................................................................................ 45
Approvals and certification.....................................................................................................................45

iv D90PLUS LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
TABLE OF CONTENTS
3 INSTALLATION Physical installation.....................................................................................................47
Dimensions .....................................................................................................................................................47
Module withdrawal and insertion ........................................................................................................48
Rear terminal layout...................................................................................................................................49
Electrical installation...................................................................................................50
Typical wiring .................................................................................................................................................51
Dielectric strength .......................................................................................................................................52
Main processor module ............................................................................................................................52
Power supply module.................................................................................................................................54
AC modules.....................................................................................................................................................55
Contact inputs and outputs ....................................................................................................................57
Direct input and output communications........................................................................................61
4 INTERFACES Front panel overview ...................................................................................................69
Front panel interface operation............................................................................................................70
Metering menu..............................................................................................................................................71
Control menu .................................................................................................................................................71
Digital fault recorder menu.....................................................................................................................73
Equipment manager menu .....................................................................................................................75
Annunciator....................................................................................................................................................75
5 ENERVISTA
SOFTWARE SUITE
Introduction to EnerVista URPlus Setup ....................................................................79
Extended EnerVista URPlus Setup features ..............................................................79
Setting templates.........................................................................................................................................79
Securing and locking FlexLogic™ equations...................................................................................84
Settings file traceability.............................................................................................................................85
6 COMMUNICATIONS Communications overview .........................................................................................89
Network topology ........................................................................................................................................89
Network settings ..........................................................................................................92
Ethernet ports................................................................................................................................................92
TFTP protocol .................................................................................................................................................96
SNTP protocol ................................................................................................................................................97
HTTP protocol.................................................................................................................................................98
Network filtering...........................................................................................................................................99
Ethernet actual values............................................................................................................................100
Remaining TCP/IP connections actual values .............................................................................101
Date and time actual values and commands.............................................................................102
Modbus communications......................................................................................... 102
Modbus protocol .......................................................................................................................................103
Modbus user map.....................................................................................................................................103
DNP communications ............................................................................................... 104
DNP protocol...............................................................................................................................................104
DNP user point list ....................................................................................................................................108
IEC 60870-5-104 communications ......................................................................... 109
IEC 60870-5-104 protocol settings...................................................................................................109
IEC 60870-5-104 point lists ..................................................................................................................110
IEC 61850 communications ..................................................................................... 111
GSSE/GOOSE configuration..................................................................................................................111
IEC 61850 server configuration..........................................................................................................125
Logical node prefixes ..............................................................................................................................126
MMXU deadbands ....................................................................................................................................128

TABLE OF CONTENTS
D90PLUS LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL v
GGIO1 status configuration................................................................................................................. 131
GGIO2 control configuration............................................................................................................... 131
GGIO4 analog configuration ............................................................................................................... 132
GGIO5 control configuration............................................................................................................... 134
Unbuffered report control configuration ...................................................................................... 135
Buffered report control configuration ............................................................................................ 136
IEC 61850 actual values........................................................................................................................ 137
FlexStates.................................................................................................................... 140
FlexState settings ..................................................................................................................................... 141
FlexState actual values.......................................................................................................................... 141
Real time clock........................................................................................................... 142
User-programmable self-tests ............................................................................... 144
Serial port ................................................................................................................... 146
Direct inputs and outputs........................................................................................ 147
Direct inputs and outputs configuration ....................................................................................... 148
Direct input and output applications.............................................................................................. 150
Direct inputs and outputs statistics................................................................................................. 158
Direct inputs and outputs commands............................................................................................ 158
Teleprotection inputs and outputs ........................................................................ 159
Teleprotection configuration .............................................................................................................. 159
Teleprotection channel tests............................................................................................................... 160
Teleprotection commands................................................................................................................... 160
Inter-relay communications ................................................................................... 161
Inter-relay communication actual values .................................................................................... 162
Inter-relay communication commands......................................................................................... 164
Shared operands ....................................................................................................... 165
Shared communication operands.................................................................................................... 166
Customizing the communication logic operands ..................................................................... 166
Communication logic operands ........................................................................................................ 167
7 PROTECTION Protection overview..................................................................................................169
Introduction to protection elements ............................................................................................... 169
Power system............................................................................................................. 171
Installation settings ................................................................................................................................. 171
AC input modules ..................................................................................................................................... 172
Power system frequency ...................................................................................................................... 177
About AC sources ..................................................................................................................................... 178
Grouped protection elements................................................................................. 182
Line pickup................................................................................................................................................... 182
Distance elements ................................................................................................................................... 186
Current elements...................................................................................................................................... 221
Voltage elements...................................................................................................................................... 257
Breaker failure ........................................................................................................................................... 267
Wattmetric zero-sequence directional ground fault............................................................... 278
Control elements ....................................................................................................... 282
Pilot schemes ............................................................................................................................................. 283
Setting group control.............................................................................................................................. 308
Trip output ................................................................................................................................................... 310
FlexMatrix..................................................................................................................................................... 315
VT fuse failure............................................................................................................................................. 318
Open pole detector.................................................................................................................................. 320
Autoreclose ................................................................................................................................................. 323
Underfrequency ........................................................................................................................................ 346
Overfrequency ........................................................................................................................................... 348

vi D90PLUS LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
TABLE OF CONTENTS
Breaker configuration.............................................................................................................................350
Breaker flashover......................................................................................................................................357
Digital counters..........................................................................................................................................362
FlexCurves™................................................................................................................................................365
Protection inputs and outputs ................................................................................ 369
Protection virtual inputs.........................................................................................................................369
Protection virtual outputs .....................................................................................................................371
Contact input configuration.................................................................................................................373
Contact outputs.........................................................................................................................................378
Direct inputs ................................................................................................................................................379
Direct outputs.............................................................................................................................................381
Teleprotection inputs and outputs ...................................................................................................382
Shared operands.......................................................................................................................................385
Protection FlexLogic™ .............................................................................................. 387
Protection FlexLogic™ gates and operators................................................................................390
FlexLogic™ rules........................................................................................................................................391
Graphical programming interface....................................................................................................391
Protection FlexLogic™ equation editor...........................................................................................393
Protection FlexLogic™ timers..............................................................................................................394
Non-volatile latches.................................................................................................................................395
Protection FlexElements™....................................................................................................................396
Customizing the protection FlexLogic™ operands ...................................................................401
Protection FlexLogic™ operands.......................................................................................................402
8 AUTOMATION Automation controller overview............................................................................. 415
Input and output structure...................................................................................................................416
Breakers ...................................................................................................................... 417
Breaker control ..........................................................................................................................................417
Breaker interlocking.................................................................................................................................420
Disconnects ................................................................................................................ 422
Disconnect configuration......................................................................................................................422
Disconnect control ...................................................................................................................................427
Disconnect interlocking .........................................................................................................................430
Automation control................................................................................................... 432
Front panel status and control...........................................................................................................432
Local-remote control scheme.............................................................................................................434
Synchrocheck .............................................................................................................................................436
Selector switch...........................................................................................................................................441
Automation inputs and outputs ............................................................................. 447
Automation virtual inputs .....................................................................................................................447
Automation virtual outputs ..................................................................................................................449
Contact input and output default assignment ...........................................................................450
Contact input configuration.................................................................................................................451
Contact outputs.........................................................................................................................................455
Virtual analog outputs............................................................................................................................457
Shared operands.......................................................................................................................................457
Automation logic ....................................................................................................... 459
Automation operators ............................................................................................................................462
Automation logic equation editor .....................................................................................................467
Customizing the automation logic operands ..............................................................................473
Automation logic operands..................................................................................................................473
9EQUIPMENT
MANAGER
Overview of the equipment manager.................................................................... 477
Breaker management............................................................................................... 478

TABLE OF CONTENTS
D90PLUS LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL vii
Circuit breaker arcing............................................................................................................................. 478
Battery monitor ......................................................................................................... 481
Indications and wiring............................................................................................................................ 481
Battery monitor settings ....................................................................................................................... 482
Shared operands ....................................................................................................... 484
Shared equipment manager operands ......................................................................................... 485
Customizing the equipment manager logic operands........................................................... 486
Equipment manager operands.......................................................................................................... 487
10 DIGITAL FAULT
RECORDER
Sequence of events recorder .................................................................................. 489
Front panel operation............................................................................................................................. 489
Fault report................................................................................................................. 490
Front panel indications.......................................................................................................................... 490
Fault report operation............................................................................................................................ 491
Fault type determination ...................................................................................................................... 492
Fault location.............................................................................................................................................. 492
Fault report settings................................................................................................................................ 493
Transient recorder .................................................................................................... 496
Front panel indications.......................................................................................................................... 498
Transient recorder settings.................................................................................................................. 499
Disturbance recorder ............................................................................................... 504
Front panel indications.......................................................................................................................... 506
Disturbance recorder settings............................................................................................................ 507
Shared operands ....................................................................................................... 512
Shared digital fault recorder operands..........................................................................................513
11 METERING Metering source......................................................................................................... 515
Phasor measurement unit....................................................................................... 515
Phasor measurement unit configuration...................................................................................... 516
Phasor measurement unit calibration............................................................................................ 517
Phasor measurement unit communications............................................................................... 518
Phasor measurement unit triggering ............................................................................................. 521
Phasor measurement unit recording.............................................................................................. 530
Phasor measurement unit reporting over network ................................................................. 534
Phasor measurement unit one-shot............................................................................................... 535
Data logger................................................................................................................. 538
Data logger function configuration................................................................................................. 538
Data logger channel configuration.................................................................................................. 540
Shared operands ....................................................................................................... 542
Shared metering operands.................................................................................................................. 543
Customizing the metering logic operands ................................................................................... 544
Metering logic operands ....................................................................................................................... 545
12 LOCAL INTERFACE Local interface overview.......................................................................................... 547
Annunciator panel..................................................................................................... 548
Annunciator operation........................................................................................................................... 548
Annunciator configuration................................................................................................................... 549
Mimic diagram editor ............................................................................................... 554
Dynamic symbols ..................................................................................................................................... 555
Static symbols............................................................................................................................................ 556
Metering blocks ......................................................................................................................................... 557
Text blocks................................................................................................................................................... 559
View modes................................................................................................................................................. 559

viii D90PLUS LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
TABLE OF CONTENTS
Pre-configured mimic diagrams........................................................................................................560
Metering summary editor........................................................................................ 564
User-programmable pushbuttons ......................................................................... 567
User-programmable pushbutton operation................................................................................568
User-programmable pushbuttons settings..................................................................................569
User-programmable pushbuttons editor......................................................................................572
13 SECURITY Password security .....................................................................................................575
Password security settings...................................................................................................................576
Password security operation...............................................................................................................578
EnerVista security management system .............................................................. 579
Enabling the security management system ................................................................................579
Adding a new user....................................................................................................................................579
Modifying user privileges.......................................................................................................................580
14 TESTING Test mode ................................................................................................................... 583
Force contact inputs................................................................................................................................583
Force contact outputs ............................................................................................................................584
Self-tests ..................................................................................................................... 585
Self-test error messages .......................................................................................................................586
Shared operands ....................................................................................................... 590
Shared self-test operands ....................................................................................................................591
Self-test logic operands .........................................................................................................................592
15 THEORY OF
OPERATION
The D90Plus distance elements................................................................................ 595
Distance element arming logic ..........................................................................................................595
Distance element time domain algorithm ....................................................................................596
Distance element frequency domain algorithm ........................................................................596
Distance supervision ...............................................................................................................................597
Distance characteristics........................................................................................................................598
Memory polarization ...............................................................................................................................604
Distance elements analysis..................................................................................................................605
Phase distance applied to power transformers .................................................. 610
Example system with power transformers...................................................................................613
Ground directional overcurrent theory................................................................. 615
Ground directional overcurrent example ......................................................................................616
Series compensated lines ........................................................................................ 616
Memory polarized directional comparators.................................................................................617
Dynamic reach control...........................................................................................................................618
Single-pole tripping................................................................................................... 620
SLG fault scenario for single-pole tripping....................................................................................622
SLG fault evolving into an LLG fault scenario for single-pole tripping.............................623
Phase selection ..........................................................................................................................................624
Communications channels for pilot-aided schemes ...............................................................625
Permissive echo signaling.....................................................................................................................632
Pilot scheme and phase selector coordination ..........................................................................633
Cross-country fault example...............................................................................................................634
16 MAINTENANCE General maintenance ............................................................................................... 637
Back up and restore settings .................................................................................. 637
Back up settings ........................................................................................................................................637
Restore settings .........................................................................................................................................638

TABLE OF CONTENTS
D90PLUS LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL ix
Upgrade software ..................................................................................................... 638
Upgrade firmware..................................................................................................... 639
Uninstall and clear files and data .......................................................................... 640
Repairs.........................................................................................................................640
Storage........................................................................................................................ 640
Disposal....................................................................................................................... 641
17 APPENDIX Warranty..................................................................................................................... 643
Revision history ......................................................................................................... 643

xD90
PLUS LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
TABLE OF CONTENTS

D90PLUS LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL 1
D90Plus Line Distance Protection System
Chapter 1: Getting started
Getting started
Please read this section to help guide you through the initial setup of the D90Plus Line
Distance Protection System.
Important procedures
It is highly recommended that the following sections are reviewed before placing the
D90Plus in service.
Cautions and warnings
Before attempting to install or use the device, review all safety indicators in this document
to help prevent injury, equipment damage, or downtime.
The following safety and equipment symbols are used in this document.
DANGER
DANGER: Indicates a hazardous situation which, if not avoided, will result in death or serious
injury.
WARNING
IMPORTANT: Indicates a hazardous situation which, if not avoided, could result in death or serious
injury.
CAUTION
CAUTION: Indicates a hazardous situation which, if not avoided, could result in minor or
moderate injury.
NOTICE
FASTPATH: Indicates practices not related to personal injury.
Inspection checklist
Use the following procedure to unpack and inspect the D90Plus.
1. Open the system packaging and inspect the unit for physical damage.
2. View the rear nameplate and verify that the correct model has been ordered.
3. Ensure that the following items are included:
– Instruction Manual and Communications Guide (if ordered).

2D90
PLUS LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
INTRODUCTION TO THE URPlus-SERIES CHAPTER 1: GETTING STARTED
– GE EnerVista CD (includes software and documentation).
4. For product information, instruction manual updates, and the latest software updates,
please visit the GE Multilin website at http://gegridsolutions.com/multilin.
5. If there is any noticeable physical damage, or any of the contents listed are missing,
please contact GE Multilin immediately.
GE Multilin contact information and call center for product support:
GE Grid Solutions
650 Markland Street
Markham, Ontario
Canada L6C 0M1
Worldwide telephone: [phone]
Europe/Middle East/Africa telephone: [phone]
North America toll-free: 1 800 547 8629
Fax: [phone]
E-mail: [e-mail]
Website: http://gegridsolutions.com/multilin
Introduction to the URPlus-series
Historically, substation protection, control, and metering functions were performed with
electromechanical equipment. This first generation of equipment was gradually replaced
by analog electronic equipment, most of which emulated the single-function approach of
their electromechanical precursors. Both of these technologies required expensive cabling
and auxiliary equipment to produce functioning systems.
Recently, digital electronic equipment has begun to provide protection, control, and
metering functions. Initially, this equipment was either single function or had very limited
multi-function capability, and did not significantly reduce the cabling and auxiliary
equipment required. However, recent digital relays have become quite multi-functional,
reducing cabling and auxiliaries significantly. These devices also transfer data to central
control facilities and human-machine interfaces using electronic communications. The
functions performed by these products have become so broad that many users now prefer
the term IED (Intelligent Electronic Device).
It is obvious to station designers that the amount of cabling and auxiliary equipment
installed in stations can be even further reduced, to 20 to 70% of the levels common in
1990, to achieve large cost reductions. This requires placing even more functions within
the IEDs.
Users of power equipment are also interested in reducing cost by improving power quality
and personnel productivity, and as always, in increasing system reliability and efficiency.
These objectives are realized through software which is used to perform functions at both
the station and supervisory levels. The use of these systems is growing rapidly.
High speed communications are required to meet the data transfer rates required by
modern automatic control and monitoring systems. In the near future, very high speed
communications will be required to perform protection signaling with a performance
target response time for a command signal between two IEDs, from transmission to
reception, of less than 3 milliseconds. This has been established by the IEC 61850 standard.
IEDs with the capabilities outlined above will also provide significantly more power system
data than is presently available, enhance operations and maintenance, and permit the use
of adaptive system configuration for protection and control systems. This new generation
of equipment must also be easily incorporated into automation systems, at both the
station and enterprise levels. The GE Multilin Advanced Universal Protection System
(URPlus-series) has been developed to meet these goals.

CHAPTER 1: GETTING STARTED INTRODUCTION TO THE URPlus-SERIES
D90PLUS LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL 3
The D90Plus is the sub-cycle distance protection and advanced automation controller for
the URPlus-series platform.
Hardware architecture
The D90Plus is a microprocessor-based device. It has a modular design consisting of a
chassis containing discrete modules that interface over a common bus. Each module is
dedicated to a specific purpose. Several of the modules are required for basic operation of
the device, while others are optional.
The power supply module receives AC or DC power from an external supply and produces
conditioned 12 V DC power for all of the modules in the chassis. The power supply also
generates 48 V DC power for external contact wetting. The output contact indicating a
critical failure of the unit also resides on this module.
The AC module measures AC currents and voltages derived from CTs and VTs. These
signals are sampled and digitized and sent over the D90Plus bus to the CPU module for
further processing. A version is available that accepts nominal 5 A current and another
that accepts nominal 1 A current.
Input and output modules monitor digital (on and off) signals from external devices (field
contacts or other IEDs), control external devices such as breakers, and send digital signals
to other devices. Input and output modules are subdivided into protection inputs and
outputs and automation inputs and outputs, with several flavors of each type.
The CPU module contains the firmware for the D90Plus. The firmware contains the
algorithms required for the various functions provided by the device. The CPU receives
analog and digital data from the AC and input/output modules. The data is processed by
the CPU and resulting control actions are sent back to the input-output modules. The CPU
has one rear Ethernet port that is used for configuration and record retrieval and one rear
RS485 port supporting the Modbus and DNP protocols. The CPU also contains the IRIG-B
port required for clock synchronization.
The communications module is required for communicating with external devices over
Ethernet using the IEC 61850, DNP 3.0, or IEC60870-5-104 protocols. This module is also
required for peer-to-peer GSSE/GOOSE messaging. This module contains its own
microprocessor which is dedicated to handling communications tasks. It also contains two
redundant Ethernet ports. Each port supports 100Base-FX over multi-mode fiber and 10/
100Base-TX over twisted pair, with auto-negotiation. These ports may additionally be
configured for single IP or dual IP redundancy.
NOTE
NOTE: The D90Plus requires one power supply module, one CPU module, one AC module, and at
least one protection input/output module. Communications modules are optional.
The front panel interface consists of an annunciator display, a main display, and an
EnerVista USB port. The annunciator display collects alarm indications from the
D90Plus internal functions and presents them using a standard annunciator format. Alarms
and their corresponding messages are entirely user-configurable. The main display allows
the user to view metering data collected by the D90Plus. It also provides access to the
control functions via dedicated control pushbuttons. The USB port allows the user to
interface with the D90Plus using the EnerVista software running on a portable PC. The
D90Plus operates independently from the front panel interface.

4D90
PLUS LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
INTRODUCTION TO THE URPlus-SERIES CHAPTER 1: GETTING STARTED
Figure 1: D90Plus block diagram
Figure 2: D90Plus hardware overview
Firmware architecture
The D90Plus is organized into six major functions.
•Protection.
• Automation.
• Metering.
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CHAPTER 1: GETTING STARTED INTRODUCTION TO THE URPlus-SERIES
D90PLUS LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL 5
• Digital fault recorder (DFR).
• Equipment manager.
• Front panel interface (HMI).
These functions operate autonomously from one another. Each function has its own
configuration parameters and each generates it own output signals. All functions share
the hardware and the communications facilities within the device.
The protection function contains the necessary elements required to detect faults in the
power system and send tripping signals to isolate the fault. This will be the primary sub-
system for many users. The protection function also has its own dedicated FlexLogic™
engine which runs at the same scan rate as the protection (16 times per power system
cycle). Protection FlexLogic™ is used to create custom logic schemes for protection
purposes.
Automation is divided into two major sub-groupings: control schemes and automation
logic. Control schemes are hard-coded general purpose schemes responsible for
automatic control within the substation. These include breaker and disconnect switch
control, interlocking, and synchrocheck. Automation logic is intended for development of
custom or advanced automatic schemes in the case the user requires a level of
functionality beyond that found in the hard-coded schemes. Automation logic generally
requires a lower execution rate than protection logic but has greatly expanded
functionality and lines of logic.
The metering function generates a wide range of real-time power system measurements
including voltage, current, frequency, complex power, and energy. It also incorporates a
data logger that provides historical recording of selected metering quantities and includes
statistical (maximum, minimum, and average) and alarming capabilities. The metering
function also provides synchrophasor capabilities in accordance with IEEE C37.118-2005.
The digital fault recorder incorporates transient recorder, disturbance recorder and fault
report capabilities. The transient recorder is intended to capture short events such as a
fault at a high sampling rate (up to 256 samples per cycle). The disturbance recorder
captures longer events such as a power swing at a lower sampling rate. The channel
assignments and triggering of these features can be independently configured. The fault
report facility provides a comprehensive record of the key measurements associated with
an event including fault type, fault location, pre-fault and post-fault quantities, and
clearing time.
The equipment manager function monitors important parameters of the station battery
under normal operation and can be used to detect incipient failures.
Despite their logic separation, signals can be exchanged between these functions. For
instance, it is useful for the digital fault recorder to record the output of protection
functions. Consequently a fixed, pre-determined set of signals is available as inputs to
each function. These are illustrated in the following figure.
The D90Plus also includes shared operand functionality. Output signals from the various
functions can be assigned as shared operands available to all functions. These signals can
then be assigned as inputs within other functions.
For example, assume that the PHASE TOC1 OP protection FlexLogic™ operand is required as
a signal within the automation function. This signal would be assigned as a shared
operand. As such, the PHASE TOC1 OP operand would subsequently become available to the
automation function by appearing in the list of available operands.

6D90
PLUS LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
INTRODUCTION TO THE URPlus-SERIES CHAPTER 1: GETTING STARTED
Figure 3: Functional architecture
Communications overview
The EnerVista URPlus Setup software can communicate with the relay through three ports:
the front panel USB port, the rear Ethernet port, and the rear RS485 port. Both rear ports
are located in slot D.
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CHAPTER 1: GETTING STARTED ENERVISTA SOFTWARE
D90PLUS LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL 7
Figure 4: Communications overview
To communicate through the D90Plus rear RS485 port from a computer’s RS232 port, the
GE RS232/RS485 converter box is required. This device (catalog number F485) connects to
the computer using a straight-through serial cable. A shielded twisted-pair (20, 22, or 24
AWG) connects the F485 converter to the D90Plus rear communications port. The converter
terminals (+, –, GND) are connected to the D90Plus communication module (+, –, COM)
terminals. The line should be terminated with a 120 Ω, 1 nF R-C network.
Communications via Ethernet requires a connection to an Ethernet network using a
standard copper or fiber cable. The Ethernet port can also connect directly to a PC using a
cross-over cable.
To communicate via the faceplate USB port, a standard USB serial cable is used.
For additional information, refer to:
Main processor module on page 52.
EnerVista software
The EnerVista software suite is an industry-leading set of programs that simplifies every
aspect of the D90Plus. The EnerVista suite provides tools to monitor the status of your
protected asset, maintain the device, and integrate information measured by the
D90Plus into DCS or SCADA monitoring systems. Convenient COMTRADE and sequence of
events viewers are an integral part of the EnerVista URPlus Setup software included with
every D90Plus. This allows the user to carry out post-mortem event analysis to ensure
proper protection system operation.
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8D90
PLUS LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
ENERVISTA SOFTWARE CHAPTER 1: GETTING STARTED
Software requirements
The EnerVista URPlus Setup software interface is used to communicate with the D90Plus.
This software interface is the preferred method to edit settings and view actual values
because the PC monitor can display more information in a simple comprehensible format.
The following minimum requirements must be met for the EnerVista URPlus Setup software
to properly operate on a PC.
• Pentium class or higher processor (Pentium II 300 MHz or higher recommended).
• Windows 2000, XP, or Vista.
• Internet Explorer 4.0 or higher.
• 128 MB of RAM (256 MB recommended).
• 200 MB of available space on system drive and 200 MB of available space on
installation drive.
• Video capable of displaying 800 × 600 or higher in high-color mode (16-bit color).
• USB 2.0 or Ethernet port for communications to the IED.
Installing the EnerVista URPlus Setup software
After ensuring the minimum requirements for using EnerVista URPlus Setup software (see
previous section), use the following procedure to install the EnerVista URPlus Setup from the
enclosed GE EnerVista CD.
1. Insert the GE EnerVista CD into your CD-ROM drive.
2. Click the Install Now button and follow the installation instructions to install the no-
charge EnerVista software.
3. When installation is complete, start the EnerVista Launchpad application.
4. Click the IED Setup section of the Launch Pad window.
5. In the EnerVista Launch Pad window, click the Add Product button and select the
“D90Plus Line Distance Protection System” from the Install Software window as shown
below. Select the “Web” option to ensure the most recent software release, or select
“CD” if you do not have a web connection, then click the Add Now button to list
software items for the D90Plus.

CHAPTER 1: GETTING STARTED ENERVISTA SOFTWARE
D90PLUS LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL 9
EnerVista Launchpad will obtain the software from the Web or CD and automatically
start the installation program.
6. Select the complete path, including the new directory name, where the EnerVista
URPlus Setup will be installed.
7. Click on Next to begin the installation. The files will be installed in the directory
indicated and the installation program will automatically create icons and add
EnerVista URPlus Setup to the Windows start menu.
8. Click Finish to end the installation. The URPlus-series device will be added to the list of
installed IEDs in the EnerVista Launchpad window, as shown below.

10 D90PLUS LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
ENERVISTA SOFTWARE CHAPTER 1: GETTING STARTED
Software access
The user can connect remotely to the D90Plus through the rear Ethernet port with a PC
running the EnerVista URPlus Setup software. The D90Plus can also be accessed locally with
a laptop computer through the front panel USB port or the rear Ethernet port using the
Quick Connect feature. Refer to the following sub-sections for additional details.
Configuring serial communications
Before starting, verify that the serial cable is properly connected to the RS485 terminals on
the back of the device. The faceplate USB port is intended for local use and is not described
in this section; refer to the Using the Quick Connect Feature section for details on
configuring the USB port.
1. Verify that the latest version of the EnerVista URPlus Setup software is installed
(available from the GE EnerVista CD or online from
http://gegridsolutions.com/multilin). See the Software Installation section for
installation details.
2. Select the “D90Plus” device from the EnerVista Launchpad to start EnerVista URPlus
Setup.
3. Click the Device Setup button to open the Device Setup window and click the Add Site
button to define a new site.
4. Enter the desired site name in the “Site Name” field. If desired, a short description of
site can also be entered along with the display order of devices defined for the site. In
this example, we will use “Location 1” as the site name. Click the OK button when
complete.