Basler Electric BE1-11t User Manual
INSTRUCTION MANUA L
FOR
BE1-11t
Transformer Protection System
Publication: 9424200995
Revision: H Sep-14
9424200995 Rev H i
Caution
Note
Preface
This instruction manual provides information about the installation and operation of the BE1-11t
Transformer Protection Sys tem. To accomplish this, the following information is provided:
• General information and a quick start guide
• Controls and indicators
• Inputs and outputs
• Protection and control functions
• Reporting and alarms information
• Mounting and connection diagrams
• BESTCOMSPlus® software
• Communication and security
• Testing and troubleshooting procedures
• Specifications
• Time curve characteristics
• RTD module (optional)
Optional instruction manuals for the BE1-11t include:
• Modbus™ communication protocol (Basler Electric part number 9424200774)
• Distributed Network Protocol (DNP) (Basler Electric part number 9424200773)
• IEC 61850 communicat ion pr otoc ol (Basler Electric part number 9424200892)
Conventions Used in this Ma nua l
Important safety and procedural information is emphasized and presented in this manual through
warning, caution, and note boxes. Each type is illustrated and defined as follows.
Warning!
Warning boxes call attention to conditions or actions that may cause
personal injury or death.
Caution boxes call attention to operating conditions that may lead to
equipment or property damage.
Note boxes emphasize important information pertaining to installation
or operation.
BE1-11t Preface
ii 9424200995 Rev H
Basler Electric does not assume any responsibility to compliance or noncompliance with national code, local code,
For terms of service relating to this product and software, see the Commercial Terms of Products and Services
document available at www.basler.com/terms.
This publication contains confidential information of Basler Electric Company, an Illinois corporation. It is loaned for
and options are subject to modification without notice. Over time, improvements and revisions may be made to this
manual.
The English-language version of this manual serves as the only approved manual version.
12570 State Route 143
Highland IL 62249-1074 USA
www.basler.com
info@basler.com
Tel: +1 618.654.2341
Fax: +1 618.654.2351
© 2014 by Basler Electric
All rights reserved
First printing: September 2012
Warning!
READ THIS MANUAL. Read this manual before installing, operating, or maintaining the BE1-11t. Note
all warnings, cautions, and notes in this manual as well as on the product. Keep this manual with the
product for reference. Only qualified personnel should install, operate, or service this system. Failure to
follow warning and cautionary labels may result in personal injury or property damage. Exercise
caution at all times.
or any other applicable code. This manual serves as reference material that must be well understood prior to
installation, operation, or maintenance.
confidential use, subject to return on request, and with the mutual und er st and ing that it will not be used in any
manner detrimental to the interests of Basler Electric Company and used strictly for the purpose intended.
It is not the intention of this manual to cover all details and variations in equipment, nor does this manual provide
data for every possible contingency regarding installation or operation. The availability and design of all features
publication. Before performing any of the following procedures, contact Basler Electric for the latest revision of this
Preface BE1-11t
9424200995 Rev H iii
Contents
Introduction ................................................................................................................................................. 1
Applications ............................................................................................................................................... 1
Features .................................................................................................................................................... 2
Model and Style Number Description ........................................................................................................ 8
Quick Start ................................................................................................................................................... 9
Maintenance .............................................................................................................................................. 9
Storage ...................................................................................................................................................... 9
Install BESTCOMSPlus® Software ............................................................................................................ 9
Power Up and Activate ............................................................................................................................ 10
Programming the BE1-11t ....................................................................................................................... 13
Controls and Indicators ............................................................................................................................ 23
Illustrations and Descriptions .................................................................................................................. 23
Menu Navigation ...................................................................................................................................... 25
Front Panel Operations ........................................................................................................................... 25
Display Setup .......................................................................................................................................... 27
Contact Inputs and Outputs ..................................................................................................................... 29
Contact-Sensing Inputs ........................................................................................................................... 29
Contact Outputs ....................................................................................................................................... 32
Overexcitation (24) Protection ................................................................................................................. 37
Element Operation ................................................................................................................................... 37
Logic Connections ................................................................................................................................... 39
Operational Settings ................................................................................................................................ 39
Settings Example ..................................................................................................................................... 40
Phase Undervoltage (27P) Protection ..................................................................................................... 43
Element Operation ................................................................................................................................... 43
Logic Connections ................................................................................................................................... 44
Operational Settings ................................................................................................................................ 45
Auxiliary Undervoltage (27X) Protection ................................................................................................ 47
Element Operation ................................................................................................................................... 47
Logic Connections ................................................................................................................................... 49
Operational Settings ................................................................................................................................ 49
Negative-Sequence Voltage (47) Protection........................................................................................... 51
Phase Overvoltage (59P) Protec tion ....................................................................................................... 53
Element Operation ................................................................................................................................... 53
Logic Connections ................................................................................................................................... 54
Operational Settings ................................................................................................................................ 54
Auxiliary Overvoltage (59X) Protection .................................................................................................. 57
Element Operation ................................................................................................................................... 57
Logic Connections ................................................................................................................................... 59
Operational Settings ................................................................................................................................ 59
Frequency (81) Protection ........................................................................................................................ 61
Frequency Measurement......................................................................................................................... 61
Underfrequency and Overfrequency Protection ...................................................................................... 61
Frequency Rate-of-Change Protection .................................................................................................... 62
Logic Connections ................................................................................................................................... 64
Operational Settings ................................................................................................................................ 64
Negative-Sequence Overcurrent (46) Protection ................................................................................... 67
Pickup Settings ........................................................................................................................................ 67
Coordination Settings .............................................................................................................................. 68
BE1-11t Contents
iv 9424200995 Rev H
Instantaneous Overcurrent (50) Protection ............................................................................................ 69
Element Operation ................................................................................................................................... 69
Logic Connections ................................................................................................................................... 70
Operational Settings ................................................................................................................................ 71
Breaker Failure (50BF) Protection ........................................................................................................... 73
Element Operation ................................................................................................................................... 73
Logic Connections ................................................................................................................................... 74
Operational Settings ................................................................................................................................ 75
Inverse Overcurrent (51) Protection ........................................................................................................ 77
Element Operation ................................................................................................................................... 77
Logic Connections ................................................................................................................................... 82
Operational Settings ................................................................................................................................ 82
Directional Overcurrent (67) Protection .................................................................................................. 85
Polarization Methods ............................................................................................................................... 85
Maximum Torque Angle and Directional Tests ....................................................................................... 87
Theory of Using Sequence Impedances for Fault Direction .................................................................... 88
Phase Current Differential (87) Prote ction ............................................................................................. 91
Element Operation ................................................................................................................................... 91
Logic Connections ................................................................................................................................... 94
Settings .................................................................................................................................................... 95
Neutral Current Differential (87N) Protection ......................................................................................... 99
Element Operation ................................................................................................................................... 99
Logic Connections ................................................................................................................................. 101
Operational Settings .............................................................................................................................. 102
Resistance Temperature Detector (49RTD) Protection ....................................................................... 103
Element Operation ................................................................................................................................. 103
Logic Connections ................................................................................................................................. 104
Operational Settings .............................................................................................................................. 104
Remote RTD Metering........................................................................................................................... 105
Analog Input Protection ......................................................................................................................... 107
Element Operation ................................................................................................................................. 107
Logic Connections ................................................................................................................................. 108
Operational Settings .............................................................................................................................. 108
Remote Analog Input Metering .............................................................................................................. 109
Virtual Control Switches (43) ................................................................................................................. 111
Element Operation ................................................................................................................................. 111
Logic Connections ................................................................................................................................. 113
Operational Settings .............................................................................................................................. 113
Logic Timers (62) .................................................................................................................................... 115
Element Operation ................................................................................................................................. 115
Logic Connections ................................................................................................................................. 118
Operational Settings .............................................................................................................................. 118
Lockout Functions (86) ........................................................................................................................... 121
Element Operation ................................................................................................................................. 121
Logic Connections ................................................................................................................................. 121
Operational Settings .............................................................................................................................. 121
Retrieving Lockout Status from the BE1-11t ......................................................................................... 122
Breaker Control Switch (101) ................................................................................................................. 123
Element Operation ................................................................................................................................. 123
Logic Connections ................................................................................................................................. 124
Operational Settings .............................................................................................................................. 125
Contents BE1-11t
9424200995 Rev H v
Setting Groups ........................................................................................................................................ 127
Setting Group Functions ........................................................................................................................ 127
Logic Connections ................................................................................................................................. 130
Operational Settings .............................................................................................................................. 131
Logic Override of the Setting Group Selection Function ....................................................................... 133
Metering ................................................................................................................................................... 135
Metering Explorer .................................................................................................................................. 135
Analog Metering Functions .................................................................................................................... 136
Sequence of Events ................................................................................................................................ 143
Retrieving SER Information ................................................................................................................... 143
Fault Reporting ........................................................................................................................................ 145
Fault Reporting Trigger Logic ................................................................................................................ 145
Targets .................................................................................................................................................. 145
Fault Reports ......................................................................................................................................... 148
Oscillographic Records.......................................................................................................................... 151
Distance to Fault .................................................................................................................................... 152
Protective Fault Analysis ....................................................................................................................... 154
Alarms ...................................................................................................................................................... 157
Alarm Settings ....................................................................................................................................... 159
User Programmable Alarms .................................................................................................................. 159
Retrieving Alarm Information ................................................................................................................. 160
Resetting Alarms ................................................................................................................................... 160
Differential Reporting ............................................................................................................................. 163
Breaker Monitoring ................................................................................................................................. 165
Breaker Status Reporting ...................................................................................................................... 165
Breaker Duty Monitoring ........................................................................................................................ 166
Breaker Alarms ...................................................................................................................................... 170
Demands .................................................................................................................................................. 171
Current ................................................................................................................................................... 171
Power..................................................................................................................................................... 172
Retrieving Demand Reporting Information ............................................................................................ 172
Load Profile ............................................................................................................................................. 175
Setting the Load Profile Re c ording F uncti on ......................................................................................... 175
Retrieving Load Profile Recorded Data ................................................................................................. 175
Power Quality .......................................................................................................................................... 177
Power Quality Settings .......................................................................................................................... 177
Retrieving Power Quality Data .............................................................................................................. 177
Trip Circuit Monitor (52TCM).................................................................................................................. 181
Element Operation ................................................................................................................................. 181
Logic Connections ................................................................................................................................. 185
Operational Settings .............................................................................................................................. 186
Fuse Loss (60FL) ..................................................................................................................................... 187
Element Operation ................................................................................................................................. 187
Logic Connections ................................................................................................................................. 189
Operational Settings .............................................................................................................................. 189
Transformer Monitor (51TF) ................................................................................................................... 191
Element Operation ................................................................................................................................. 191
Logic Connections ................................................................................................................................. 192
Operational Settings .............................................................................................................................. 192
Transformer Damage Report ................................................................................................................ 193
BE1-11t Contents
vi 9424200995 Rev H
BESTnet™Plus ......................................................................................................................................... 195
Status Page ........................................................................................................................................... 195
Real Time Data ...................................................................................................................................... 195
Demand Data ........................................................................................................................................ 196
Faults ..................................................................................................................................................... 197
Sequence of Events .............................................................................................................................. 199
Power Quality ........................................................................................................................................ 199
Mounting .................................................................................................................................................. 201
Case Cutouts and Dimensions .............................................................................................................. 201
Terminals and Connectors ..................................................................................................................... 211
Terminal Blocks ..................................................................................................................................... 212
CT Polarity ............................................................................................................................................. 212
Typical Connections ............................................................................................................................... 215
Power System Applications ................................................................................................................... 219
BESTCOMSPlus® Software .................................................................................................................... 223
Installation ............................................................................................................................................. 224
Activate the BE1-11 Plugin for BESTCOMSPlus® ................................................................................ 224
Menu Bars ............................................................................................................................................. 229
Settings Explorer ................................................................................................................................... 231
Metering Explorer .................................................................................................................................. 232
Settings File Management ..................................................................................................................... 232
Auto Export Metering ............................................................................................................................. 234
BESTCOMSPlus® Updates ................................................................................................................... 235
Firmware Updates ................................................................................................................................. 235
BESTlogic™Plus ...................................................................................................................................... 237
Overview of BESTlogic™Plus ................................................................................................................ 237
Logic Schemes ...................................................................................................................................... 245
Programming BESTlogic ™Plus.............................................................................................................. 252
Offline Logic Simulator .......................................................................................................................... 253
BESTlogic™Plus File Management ....................................................................................................... 253
BESTlogic™Plus Ex amp les ................................................................................................................... 255
Communication ....................................................................................................................................... 257
Connections ........................................................................................................................................... 257
Ethernet Setup ....................................................................................................................................... 258
Email Setup ........................................................................................................................................... 260
RS-485 Setup ........................................................................................................................................ 261
DNP Setup ............................................................................................................................................. 261
Modbus™ Setup ..................................................................................................................................... 265
Security .................................................................................................................................................... 267
Access Levels ........................................................................................................................................ 267
Username Setup .................................................................................................................................... 267
Port Access Setup ................................................................................................................................. 268
Access Control ...................................................................................................................................... 269
Viewing the Security Log ....................................................................................................................... 270
Timekeeping ............................................................................................................................................ 271
Clock Setup ........................................................................................................................................... 271
Setting the Time and Date ..................................................................................................................... 272
IRIG Port ................................................................................................................................................ 273
Real-Time Clock Specificat ions ............................................................................................................. 273
Backup Battery for the Real-Time Clock ............................................................................................... 274
Device Information .................................................................................................................................. 277
Style Number ......................................................................................................................................... 277
Contents BE1-11t
9424200995 Rev H vii
Device Info ............................................................................................................................................. 277
Firmware Updates ................................................................................................................................. 278
Configuration ........................................................................................................................................... 281
Power System Measurements .............................................................................................................. 281
Power System Settings ......................................................................................................................... 284
Sensing Transformers Settings ............................................................................................................. 285
Transformer Setup ................................................................................................................................. 287
Display Units .......................................................................................................................................... 297
Introduction to Testing ........................................................................................................................... 299
Testing Philosophies ............................................................................................................................. 299
Testing and Troubleshooting Aids ......................................................................................................... 300
Acceptance Testing ................................................................................................................................ 303
Test Equipment ..................................................................................................................................... 303
Power Up ............................................................................................................................................... 303
Communications .................................................................................................................................... 303
Style Number and Serial Number Verificat io n ....................................................................................... 303
IRIG Verification (if used) ...................................................................................................................... 304
Contact Sensing Inputs ......................................................................................................................... 304
Control Outputs ..................................................................................................................................... 304
Current Circuit Verification..................................................................................................................... 305
Three-Phase Voltage Circuit Verification .............................................................................................. 306
Power Reading Verification ................................................................................................................... 307
Auxiliary Voltage Input Verificati on - VX and VX 3
rd
(Fundamental and Third Harmonic) ..................... 307
Frequency Verification ........................................................................................................................... 308
Commissioning Testing ......................................................................................................................... 309
Digital I/O Connection Verification ......................................................................................................... 309
Virtual Selector Switches ....................................................................................................................... 310
Virtual Contro l Sw i tc h ............................................................................................................................ 310
Protection and Control Function Verification ......................................................................................... 311
Verify Other Setpoints as Appropriate ................................................................................................... 311
Reporting and Alarm Functions ............................................................................................................. 311
Periodic Testing ...................................................................................................................................... 315
Settings Verification ............................................................................................................................... 315
Analog Circuit Verification ..................................................................................................................... 315
Overexcitation (24) Test ......................................................................................................................... 317
Functional Test Procedure .................................................................................................................... 317
Functional Test Report .......................................................................................................................... 321
Phase Undervoltage (27P) Test ............................................................................................................. 323
Functional Test Procedure .................................................................................................................... 323
Functional Test Report .......................................................................................................................... 325
Auxiliary Undervoltage (27X) Test ......................................................................................................... 327
Functional Test Procedure .................................................................................................................... 327
Functional Test Report .......................................................................................................................... 336
Phase Overvoltage (59P) Test................................................................................................................ 339
Functional Test Procedure .................................................................................................................... 339
Functional Test Report .......................................................................................................................... 341
Auxiliary Overvoltage (59X) Test ........................................................................................................... 343
Functional Test Procedure .................................................................................................................... 343
Functional Test Report .......................................................................................................................... 351
Frequency (81) Test ................................................................................................................................ 355
Functional Test Procedure .................................................................................................................... 355
Functional Test Report .......................................................................................................................... 360
BE1-11t Contents
viii 9424200995 Rev H
Instantaneous Overcurrent (50) Test .................................................................................................... 363
Functional Test Procedure .................................................................................................................... 363
Functional Test Report .......................................................................................................................... 370
Breaker Fail (50BF) Test ......................................................................................................................... 375
Functional Test Procedure .................................................................................................................... 375
Functional Test Report .......................................................................................................................... 378
Inverse Overcurrent (51) Test ................................................................................................................ 379
Functional Test Procedure .................................................................................................................... 379
Functional Test Report .......................................................................................................................... 389
Directional Overcurrent (67) Test .......................................................................................................... 395
Functional Test Procedure .................................................................................................................... 395
Functional Test Report .......................................................................................................................... 401
Phase Current Differential (87) Test ...................................................................................................... 403
Restrained Functional Test Procedure .................................................................................................. 403
Unrestrained Functional Test Procedure ............................................................................................... 410
Harmonic Restraint Functional Test Procedure .................................................................................... 410
Functional Test Reports ........................................................................................................................ 412
Neutral Current Differential (87N) Test ................................................................................................. 415
Functional Test Procedure .................................................................................................................... 415
Functional Test Report .......................................................................................................................... 417
Virtual Control Switches (43) Test ......................................................................................................... 419
Functional Test Procedure .................................................................................................................... 419
Functional Test Report .......................................................................................................................... 421
Logic Timers (62) Test ............................................................................................................................ 423
Functional Test Procedure .................................................................................................................... 423
Functional Test Report .......................................................................................................................... 431
Lockout Functions (86) Test .................................................................................................................. 433
Functional Test Procedure .................................................................................................................... 433
Functional Test Report .......................................................................................................................... 434
Breaker Control Switch (101) Test ........................................................................................................ 435
Functional Test Procedure .................................................................................................................... 435
Functional Test Report .......................................................................................................................... 436
Frequently Asked Questions (FAQ) ...................................................................................................... 437
Electrical/Connections ........................................................................................................................... 437
General Operation ................................................................................................................................. 437
Features ................................................................................................................................................ 438
Communications .................................................................................................................................... 438
Troubleshooting ...................................................................................................................................... 439
Communications .................................................................................................................................... 439
Inputs and Outputs ................................................................................................................................ 440
Metering/Display .................................................................................................................................... 440
General Operation ................................................................................................................................. 440
Specifications .......................................................................................................................................... 443
Operational Specifications ..................................................................................................................... 443
General Specifications........................................................................................................................... 451
Specifications - 25 Hz Operation ........................................................................................................... 459
Operational Specifications ..................................................................................................................... 459
Time Curve Characteristics.................................................................................................................... 467
Inverse Overcurrent (51) ....................................................................................................................... 467
Under/Overvoltage (27/59) .................................................................................................................... 495
Overexcitation (24) ................................................................................................................................ 499
Contents BE1-11t
9424200995 Rev H ix
RTD Module ............................................................................................................................................. 503
Features ................................................................................................................................................ 503
Functional Description ........................................................................................................................... 503
Mounting ................................................................................................................................................ 504
Connections ........................................................................................................................................... 504
RTD Module Communications Setup Procedure .................................................................................. 508
RTD Module Plugin for BESTCOMSPlus® ............................................................................................ 511
Remote Analog Inputs Configuration .................................................................................................... 516
Remote Analog Outputs Configuration .................................................................................................. 517
Remote RTDs Configuration ................................................................................................................. 518
Specifications ........................................................................................................................................ 519
Repair .................................................................................................................................................... 522
Maintenance .......................................................................................................................................... 522
Storage .................................................................................................................................................. 522
Digital Points ........................................................................................................................................... 523
Revision History ...................................................................................................................................... 537
BE1-11t Contents
x 9424200995 Rev H
Contents BE1-11t
9424200995 Rev H 1
Introduction
The BE1-11t Transformer Protection System provides flexible, reliable, and economical transformer
protection, control, monitoring, and measurement functions. The BE1-11t offers phase and neutral current
differential, transformer monitor, overexcitation (V/Hz), overcurrent, directional overcurrent,
over/undervoltage, over/underfrequency, RTD (Resistance Temperature Detector) with remote module,
breaker failure protection, and fuse loss protection. It offers breaker- and trip-circuit monitoring, and
oscillography and sequential events recording. Control features include virtual selector switches, circuit
breaker control, virtual lockout, and variable-mode timers. System metering, status information, and fault
locating are available at the BE1-11t front panel and through the BE1-11t communication ports. The
capabilities of the BE1-11t make it well suited to provide comprehensive transformer protection. The
system is suitable for mounting in OEM cubicle or retrofit switchgear applications. Suitable BE1-11t
applications include transformers associated with generation step up transformers, intertie installations,
network transformer, and distribution feeder step down transformer protection.
A front-panel USB port or optional rear Ethernet port enables local communication between the BE1-11t
and a PC operating with BESTCOMSPlus® software. BESTCOMSPlus software simplifies the
commissioning process by providing a graphical interface for setting the BE1-11t and configuring a
protection and control scheme for your application. Through BESTCOMSPlus, all BE1-11t settings and
logic can be retained in a file for printing or uploading to other BE1-11t protection systems. Oscillography
and sequential events records can be retrieved from a BE1-11t, viewed, and printed.
Front-panel features include a large, backlit alphanumeric display and LED indicators that display system
parameters, BE1-11t settings, and BE1-11t status. Pushbuttons enable navigation through the display
menu, changes to settings, resetting of targets (with password access), and direct access to virtual
switches.
Applications
The capabilities of the BE1-11t make it ideally suited for applications with the following attributes:
• Transformer applications where differential protection is required
• Monitoring the through fault currents that may lead to transformer damage
• Complete control of the circuit breaker connecting the transformer to the distribution bus
• Applications where bus protection is provided by a high-speed overcurrent blocking scheme on
the transformer bus mains instead of a dedicated bus differential circuit
• Isolation between the RTDs and the BE1-11t due to distance between the BE1-11t package and
the RTD module
• Low burden to extend the linear range of CTs
• The flexibility provided by wide setting ranges, multiple setting groups, and multiple coordination
curves in one unit
• The economy and space savings provided by a multifunction, multiphase unit. This one unit can
provide all of the protection, control, metering, and local and remote indication functions required
for typical applications.
• Directional control and fault recording
• High-speed Ethernet communications and protocol support
• The capabilities of a numeric multifunction relay
• The small size and limited behind-panel projection facilitates modernizing protection and control
systems in existing equipment
• Detection of low ground current levels (SEF option)
• IEC 61850 functionality
BE1-11t Introduction
2 9424200995 Rev H
Features
The BE1-11t protection system includes many features for the protection, monitoring, and control of
power system equipment. These features include protection and control functions, metering functions,
and reporting and alarm functions. A highly flexible programmable log ic sys tem c all ed BEST logic™Plus
allows the user to apply the available functions with complete flexibility and customize the system to meet
the requirements of the protected power system. Programmable I/O, extensive communication features,
and an advanced user interface provide easy access to the features provided.
The following information summarizes the capabilities of this multifunction device. Each feature, along
with its setup and use, is described in greater detail in the later chapters of this manual.
General Features
HMI (Human-Machine Interface)
Each BE1-11t has a front-panel display and 12 LED indicators: Power Supply Status, Relay Trouble
Alarm, Minor Alarm, Major Alarm, Trip, Select Control Switch, Operate Control Switch, and Indicator 1
through 7 (programmable in BESTlogicPlus). The backlit, liquid crystal display (LCD) allows the BE1-11t
to replace local indication and control functions such as panel metering, alarm annunciation, and control
switches. Four scrolling pushbuttons enable navigation through the LCD menu tree. Parameters are
changed using the Edit pushbutton. Targets, alarms, and other registers are cleared with the Reset
pushbutton. In Edit mode, the scrolling pushbuttons provide data entry selections. Edit mode is indicated
by an LED on the Edit pushbutton. Select Control Switch and Operate Control Switch pushbuttons
provide a means to control the logic switches.
The LCD has automatic priority logic to govern which metering values are displayed on the screen so that
when an operator approaches, the metering data of most interest is automatically displayed without
having to navigate the menu structure. Scrollable metering parameters are selected on the General
Settings, Front Panel HMI settings screen in BESTCOMSPlus.
Device Information
The version of the embedded software (firmware), serial number, and style number are available from the
front panel or the communication ports.
Three free-form fields (Device ID, Station ID, and User ID) can be used to enter information to identify the
BE1-11t. These fields are used by many of the reporting functions to identify the BE1-11t reporting the
information. Examples of BE1-11t identification field uses include station name, circuit number, relay
system, and purchase order, and others.
Device Security
Passwords provide access security for six distinct functional access areas: Read, Control, Operator,
Settings, Design, and Administrator. Each username/password is assigned an access area with access to
that area and each area below it. An administrator password provides access to all six of the functional
areas.
A second dimension of security is provided by the ability to restrict access for any of the access areas to
only specific communication ports. For example, you could set up security to deny access to control
commands through the Eth er net port.
Security settings affect read and write access. Refer to the Security chapter for more information.
Setting Groups
Four setting groups allow adaptive relaying to be implemented to optimize BE1-11t settings for various
operating conditions. Automatic and external logic can be employed to select the active setting group.
Clock
The clock is used by the logging functions to timestamp events. BE1-11t timekeeping can be selfmanaged by the internal clock or coordinated with an external source through a network or IRIG device.
Introduction BE1-11t
9424200995 Rev H 3
A backup capacitor and additional battery backup are provided for the clock. During a loss of operating
power, the backup capacitor maintains timekeeping for up to 24 hours depending on conditions. As the
capacitor nears depletion, the backup battery takes over and maintains timekeeping. The backup battery
has a life expectancy of greater than five years depending on conditions.
IRIG
A standard unmodulated IRIG-B input receives time synchronization signals from a master clock.
Automatic daylight saving time compensation can be enabled and set for floating or fixed dates.
NTP (Network Time Protocol)
NTP synchronizes the real-time clock to network time servers through the Ethernet port. BESTCOMSPlus
is used to establish the priority of time reference sources available to the BE1-11t, IRIG-B, NTP, DNP,
and RTC (real-time clock). The NTP address is set using BESTCOMSPlus.
Communications
Three independent communication ports provide access to all BE1-11t functions. A USB (universal serial
bus) port is located on the front panel, a two-wire RS-485 port is located on the rear panel, and an
optional Ethernet port is also located on the rear panel. The RS-485 and Ethernet ports are electrically
isolated.
Modbus™ and DNP3 protocols are optionally available for the RS-485 or Ethernet communication port.
The IEC 61850 protocol is optionally av ai lable for the Ether net port. Sep ar ate instruction manuals cover
each available protocol. Consult the product bulletin or Basler Electric for availability of these options and
instruction manuals. Modbus sessions can be operated simultaneously over the Ethernet and RS-485
ports.
System Parameters
Three-phase currents and voltages are digitally sampled and the fundamental is extracted using a
Discrete Fourier Transform (DFT) algorithm.
The voltage sensing circuits can be configured for single-phase, three-phase-three-wire, or four-wire
voltage transformer circuits. Voltage sensing circuitry provides voltage protection, frequency protection,
polarizing, and watt/var metering. Neutral-shift, positive-sequence, and negative-sequence voltage
magnitudes are derived from the three-phase voltages. Digital sampling of the measured frequency
provides high accuracy at off-nominal values.
An auxiliary voltage sensing input (Vx) provides protection capabilities for over/undervoltage monitoring of
the fundamental and third harmonic voltage of the VT source connected to the Vx input. This capability is
useful for ground fault protection.
Each current sensing circuit has low burden and is isolated. Neutral, positive-sequence, and negativesequence current magnitudes are derived from the three-phase curr ents . An ind e pend ent ground current
input is available for direct measurement of the current in a transformer neutral, tertiary winding or flux
balancing current transformer.
Programmable Inputs and Outputs
Programmable contact inputs and outputs are described in the following paragraphs.
Programmable Inputs
Seven programmable contact sensing inputs with programmable signal conditioning provide a binary logic
interface to the protection and control system. Each input function and label is programmable using
BESTlogicPlus. A user -meaningful label can be assigned to each input and to each state (energized and
de-energized) for use in reporting functions. Board mounted jumpers support dual voltage ratings.
Programmable Outputs
Eight programmab le gen er al-purpose contact outputs provide a binary logic interface to the protection
and control system. One programmable, failsafe contact output serves as an alarm output. Each output
BE1-11t Introduction
4 9424200995 Rev H
function and label is programmable using BESTlogicPlus. A user-meaningful name can be assigned to
each output and to each state (energized and de-energized) for use in reporting functions. Output logic
can be overridden to open, close, or pulse each output contact for testing or control purposes. All output
contacts are trip rated.
Reporting and Alarms
Several reporting and alarm functions provide fault reporting, differential reporting, demand, breaker, and
trip circuit monitoring. Reporting of power quality, energy data, and general status is also provided.
Alarms
Extensive self diagnostics will trigger a fatal relay trouble alarm if any of the BE1-11t core functions are
compromised. Fatal relay trouble alarms are not programmable and are dedicated to the Alarm output
(OUTA) and the front panel Relay Trouble LED. Additional relay trouble alarms and all other alarm
functions are programmable for major or minor priority. Programmed alarms are indicated by major or
minor alarm LEDs on the front panel. Major and minor alarm points can also be programmed to any
output contact including OUTA. Over 50 alarm conditions are available to be monitored including userdefinable logic conditions u sing BE STlogicPlus.
Active alarms can be read and reset at the front panel or through the communication ports. A historical
sequence of events report with time stamps lists when each alarm occurred and cleared. These reports
are available through the communication ports.
Breaker Monitoring
Breaker statistics are recorded for a single breaker. They include the number of operations, fault current
interruption duty, and breaker time to trip. Each of these conditions can be set to trigger an alarm.
Transformer Monitor (51TF)
The 51TF (through-fault) monitor measures the current flowing through a transformer and compares the
current magnitude and duration to a damage characteristic defined by the user. When the current
exceeds the threshold setting, a through-fault pickup counter increments to indicate the excessive current.
If the duration of the current exceeds the damage characteristic, a through-fault duration counter
increments. The pickup counter or duration counter can be used to trigger a 51TF through-fault alarm
which would prompt inspection of the transformer. The number of counts for each counter is shown on the
Transformer Damage Report screen in BESTCOMSPlus.
Trip Circuit Monitor (52TCM)
The trip circuit of a breaker or lockout relay can be monitored for loss of voltage (fuse blown) or loss of
continuity (trip coil open). Additional trip or close circuit monitors can be implemented in BESTlogicPlus
using additional inputs, logic timers, and programmable logic alarms.
Demands
Demand values are continuously calculated for phase currents, neutral current, negative-sequence
current, ground current, real power, reactive power, and apparent power. The demand interval and
demand calculation method are independently settable for phase, neutral, and negative-sequence
measurements. Demand reporting records peak and present demand with time stamps for each register.
Power Quality
The BE1-11t offers IEC 61000-4-30 Class B power quality measurement performance. Power quality
settings include a fixed or sliding reference mode, dip hysteresis, dip ratio, swell hysteresis, and swell
ratio.
Energy Data Reporting
Energy information in the form of watthours and varhours is measured and reported by the BE1-11t. Both
positive and negative values are reported in three-phase, primary units.
Introduction BE1-11t
9424200995 Rev H 5
General Status Reporting
The BE1-11t provides extensive general status reporting for monitoring, commissioning, and
troubleshooting. Status reports are available from the front panel or communication ports.
Fault Reporting
Fault reports consist of simple target information, fault summary reports, and detailed oscillography
records to enable the user to retrieve information about disturbances in as much detail as is desired. The
BE1-11t records and reports oscillography data in industry-standard IEEE, COMTRADE format to allow
using any fault analysis software. Basler Electric provides a Windows
BESTwave™ that can read and plot binary or ASCII format files that are in the COMTRADE format. A
copy of BESTwave is included on the BE1-11 product CD.
Sequence of Events Recorder
A Sequence of Events Recorder (SER) records and time stamps all BE1-11t inputs and outputs as well as
all alarm conditions monitored by the BE1-11t. Time stamp resolution is to the nearest half-cycle. I/O and
Alarm reports can be extracted from the records as well as reports of events recorded during the time
span associated with a specific fault report.
® based program called
Protection and Control
Protection functions consist of Overexcitation, Undervoltage, Overvoltage, Frequency, Instantaneous
Overcurrent, Breaker Failure, Inverse Overcurrent, Phase Current Differential, Neutral Current
Differential, Thermal, and Analog protection. Virtual Control Switches, Timers, a Lockout Function, and a
Breaker Control Switch make up the control functions. The following paragraphs describe each protection
and control function.
Overexcitation (24) Protection
One volts per hertz protective element provides overexcitation protection for a generator and/or
transformer.
Undervoltage (27P) and Overvoltage (59P) Protection
Five phase undervoltage and four phase overvoltage elements are included. Phase
undervoltage/overvoltage protection can be set for one of three, two of three, or three of three logic.
When a four-wire voltage transformer connection is used, under/overvoltage protection can be set for
either phase-to-phase voltage or phase-to-neutral voltage. The 27P elements are equipped with an
undervoltage inhibit feature. Inverse or definite time can be selected. Refer to the T ime Cur ve
Characteristics chapter.
Auxiliary Undervoltage (27X) and Auxiliary Overvoltage (59X) Protection
Four auxiliary overvoltage and four auxiliary undervoltage elements provide over/undervoltage protection.
Auxiliary voltage protection elements can be set to monitor separately the third harmonic, neutral-shift,
positive-sequence, negative-sequence, or auxiliary fundamental voltages. Ground unbalance protec ti on is
provided when the auxiliary voltage input is connected to a source of 3V0 such as a broken-delta VT. The
27X is equipped with an undervoltage inhibit feature. Inverse or definite time can be selected. Refer to the
Time Curve Characteristics chapter.
Frequency (81) Protection
Eight independent frequency elements can be set for over, under, or rate of change (81R) frequency
operation. Each can be set separately to monitor the frequency on the main three-phase voltage input or
the Vx input. Rate of change can be set to operate on positive, negative, or “either”.
BE1-11t Introduction
6 9424200995 Rev H
Note
Note
BE1-11t protection systems enabled for IEC-61850 communication
(style Txxxx5xxxxxxxx) have their frequency protection elements fixed
at four underfrequency elements, two overfrequency elements, and
two frequency rate-of-change elements.
Instantaneous Overcurrent (50) Protection
Directional overcurrent protection is provided by nine instantaneous overcurrent elements. Digital signal
processing filters out unwanted harmonic components while providing fast overcurrent response with
limited transient overreach and overtravel.
Instantaneous overcurrent elements can be set for single-phase, three-phase, ground, neutral, positivesequence, negative-sequence, or unbalanced protection.
Breaker Failure (50BF) Protection
One breaker failure function provides protection and security for the power system against failure of the
monitored breaker.
Inverse Overcurrent (51) Protection
Nine inverse overcurrent elements can be set for single-phas e, three-phase, ground, neutral, positivesequence, negative-sequence, or unbalanced protection. Inverse-overcurrent functions employ a dynamic
integrating timing algorithm covering a range from pickup to 40 times pickup with selectable
instantaneous or integrated reset characteristics. Inverse time overcurrent curves conform to IEEE Std
C37.112-1996 - IEEE Standard Inverse-Time Characteristic Equations for Overcurrent Relays, and
include seven curves similar to Westinghouse/ABB CO curves, five curves similar to GE IAC curves, a
fixed time curve, and a user programmable curve. Refer to the Time Curve Characteristics chapter for
more information about the inverse overcurrent protection characteristic curves.
Phase inverse overcurrent elements can be voltage restrained or controlled for generator backup
applications. Negative-sequence current protection (46) is included as a mode of the 51 (inverse
overcurrent) element. Each inverse overcurrent element can be set separately for forward, reverse, or
non-directional control.
A separate ground current input provides ground overcurrent protection for a separate ground CT.
Optionally, an SEF (sensitive earth fault) version of the separate ground CT is available.
BE1-11t protection systems enabled for IEC-61850 communication
(style Txxxx5xxxxxxxx) have their inverse overcurrent protection
elements fixed at nine inverse overcurrent elements without voltage
control.
Phase Current Differential (87) Protection
One phase current differential element provides three-phase, percent age-restrained, differential
protection with dual-slope.
Neutral Current Differential (87N) Protection
Two neutral current differential elements provides sensitive phase-to-ground fault differential protection
for the wye winding of the transformer.
Resistance Temperature Detector (49RTD) Protection
Fourteen resistance temperature detector elements provide over/undertemperature protection in
applications where a remote RTD module is connected to the BE1-11t via Ethernet or RS-485 cable. For
more information, refer to the RTD Module chapter.
Introduction BE1-11t
9424200995 Rev H 7
Analog Input Protection
Eight analog input protection elements monitor external analog input signals when two remote RTD
modules are connected via an Ethernet or RS-485 cable. Four analog inputs are provided with each RTD
module. For more information, refer to the RTD Module chapter.
Fuse Loss (60FL)
A fuse loss element protects against false tripping due to a loss of voltage sensing. Voltage transformer
circuit monitoring adds security by detecting problems in the voltage transformer sensing circuits and
preventing mis-operations of the 27P, 47, 59P, and 51/27 functions.
Breaker Control Switch (101)
Tripping and closing of a selected breaker can be controlled by the virtual breaker control switch. The
virtual breaker control switch is accessed locally at the front panel or remotely through the communication
ports.
Virtual Control Switches (43)
Five virtual control switches are accessed locally at the front panel or remotely through the
communication ports. Virtual switches can be used to trip and close additional switches or breakers, or
enable and disable certain functions.
Logic Timers (62)
Eight logic timers with six modes of operation emulate virtually any type of timer.
Lockout Functions (86)
Two lockout elements are provided.
BESTlogic™Plus Programmable Logic
Each BE1-11t protection and control function is implemented in an independent function element. Every
function block is equivalent to its single function, discrete device counterpart so it is immediately familiar
to the protection engineer. Each independent function block has all of the inputs and outputs that the
discrete component counterpart may have. Progr a mm i ng with BEST logicPlus is equivalent to choosing
the devices required by your protection and control scheme and then drawing schematic diagrams to
connect the inputs and outputs to obtain the desired operating logic.
Refer to the BESTlogicPlus chapter for more information on logic schemes. Custom logic settings allow
you to tailor the BE1-11t functionality to match the needs of your operation's practices and power system
requirements.
Metering Functions
Metering is provided for the following parameters:
• Primary and secondary voltages (P-P, P-N, V1, V2, 3V0, Vx, Vx 3
• Frequency (phase and auxiliary)
• Primary and secondary currents (phase, ground, I1, I2, 3I0)
• Power (real, reactive, apparent)
• Power factor
nd
• Phase differential (Iop, Ir, 2
Harmonic, 5th Harmonic)
• Neutral differential (Iop)
• Energy (total watthours and total varhours)
rd
harmonic)
For details on metering functions, refer to the Metering chapter.
BE1-11t Introduction
8 9424200995 Rev H
Model and Style Number Description
BE1-11t electrical characteristics and operational features are defined by a combination of letters and
numbers that make up the style number. The style number describes the options included in a specific
device and appears on labels located on the front panel and inside the case. Upon receipt of a BE1-11t,
be sure to check the style number against the requisition and the packing list to ensure that they agree.
The model number and style number are shown in Figure 1.
Figure 1. Style Chart
Introduction BE1-11t
9424200995 Rev H 9
Note
Quick Start
This chapter provides basic installation and setup information about the BE1-11t Tr ans former Protec t ion
System. BE1-11t protection systems are delivered with a BE1-11 product CD. Upon receipt of the
BE1-11t, check the model and style number against the requisition and packing list for agreement. If there
is evidence of shipping damage, file a claim with the carrier, and notify the Basler Electric Regional Sales
Office, your sales representative, or a sales representative at Basler Electric, Highland, Illinois.
If the BE1-11t is not installed immediately, store it in the original shipping carton in a moisture- and dustfree environment.
Included on the BE1-11 product CD:
• BESTCOMSPlus® Software
• BESTwave™ Software
• BEST61850™ Software
• Quick Start Guide
• Communications Quick Start Guide
• Instruction Manual
• Modbus™ Instruction Manual
• DNP Instruction Manual
• IEC 61850 Instruction Manual
Do not connect a USB cable between the PC and the BE1-11t until
BESTCOMSPlus is installed. Connecting a USB cable before setup is
complete may result in errors.
Maintenance
Preventive maintenance consists of periodic replacement of the backup battery and periodically checking
that the connections between the BE1-11t and the system are clean and tight. The front cover should be
removed only when replacing the backup battery for the real-time clock. Ensure that the BE1-11t is
powered off and taken out of service before removing the front cover. BE1-11t units are manufactured
using state-of-the-art, surface-mount technology. As such, Basler Electric recommends that no repair
procedures be attempted by anyone other than Basler Electric personnel.
Storage
This device contains long-life aluminum electrolytic capacitors. For devices that are not in service (spares
in storage), the life of these capacitors can be maximized by energizing the device for 30 minutes once
per year.
Install BESTCOMSPlus® Software
BESTCOMSPlus software is built on the Microsoft® .NET Framework. The setup utility that installs
BESTCOMSPlus on your PC also installs the BE1-11 plugin and the required version of .NET Framework
(if not already installed). BESTCOMSPlus operates with systems using Windows® XP 32-bit SP3,
Windows Vista 32-bit SP1 (all editions), Windows 7 32-bit (all editions), Windows 7 64-bit (all editions),
and Windows 8. System recommendations for the .NET Framework and BESTCOMSPlus are listed in
Table 1.
BE1-11t Quick Start
10 9424200995 Rev H
System Type
Component
Recommendation
32/64 bit
Processor
2.0 GHz
32/64 bit
RAM
1 GB (minimum), 2 GB (recommended)
32 bit
Hard Drive
100 MB (if .NET Framework is already installed on PC)
950 MB (if .NET Framework is not already installed on PC)
64 bit
Hard Drive
100 MB (if .NET Framework is already instal led on PC)
2.1 GB (if .NET Framework is not already installed on PC)
Table 1. System Recommendations for BESTCOMSPlus and the .NET Framework
To install BESTCOMSPlus, a Windows user must have Administrator rights.
1. Insert the BE1-11 product CD into the PC CD-ROM drive.
2. When the BE1-11 Product CD menu appears, click the installation button for BESTCOMSPlus. The
setup utility installs BESTCOMSPlus, the .NET Framework (if not already installed), the USB driver,
and the BE1-11 plugin for BESTCO M SPlus on your PC.
When BESTCOMSPlus installation is complete, a Basler Electric folder is added to the Windows
programs menu. This folder is accessed by clicking the Windows Start button and then accessing the
Basler Electric folder in the Programs menu. The Basler Electric folder contains an icon that starts
BESTCOMSPlus when clicked.
Power Up and Activate
The BE1-11 plugin is a module that runs inside the BESTCOMSPlus shell. The BE1-11 plugin contains
specific operational and logic settings for only BE1-11 protection systems. Uploading settings to the
BE1-11t is possible only after activat ing the B E1-11 plugin.
Note that if a BE1-11t is not connected, you will not be able to configure certain Ethernet settings.
Ethernet settings can be changed only when an active USB or Ethernet connection is present. Refer to
the Communication chapter for more information.
USB Connection
The USB driver was copied to your PC during BESTCOMSPlus installation and is
installed automatically after powering the BE1-11t. USB driver installation progress is
shown in the Windows Taskbar area. Windows will notify you when installation is
complete.
Connect a USB cable between the PC and your BE1-11t protection system. A typical
USB cable with a B-type connector is shown to the right.
NOTE
In some instances, the Found New Hardware Wizard will prompt you for the
USB driver. If this happens, direct the wizard to the following folder:
C:\Program Files\Basler Electric\USB Device Drivers\
Apply Operating Power
The nominal power supply values are listed on the front-panel label. See Figure 2 for an example.
Quick Start BE1-11t
9424200995 Rev H 11
ETHERNET
!
WARNING
BE1-11
C12C11C10C9C8C7C6C5C4C3C2C1 C13 C14 C15 C16 C17 C18
V
A
OUT 2 OUT 3 OUT 4 OUT 5OUT 1 ALARM VBV
C
V
X
VXN
E12E11E10E9E8E7E6E5E4E3E2E1
OUT 8 OUT 7
IN5 IN6
IN7
OUT 6
A8A7A6A5A4A3A2A1
IRIG PWR
CA B
COM2 RS-485
GND
B8B7B6B5B4B3B2B1
IN1 IN2
IN3
IN4
D1 D3 D5 D7
IA1IB1IC1I
G1
I
A1
D2 D4 D6 D8
IB1IC1I
G1
I
A2
F2 F4 F6 F8
IB2IC2I
G2
F1 F3 F5 F7
IA2I
B1
IC2I
G2
P0061-43
Figure 2. Front Panel Label Example
Connect rear terminals A6, A7, and A8 (groun d) to a power supp ly. See Figure 3. Apply operating power
consistent with the nominal power supply values listed on the front-panel label. Wait until the boot
sequence is complete.
Start BESTCOMSPlus® and Activate BE1-11 Plugin
To start BESTCOMSPlus, click the Start button, point to Programs, Basler Electric , and then click the
BESTCOMSPlus icon. During initial startup, the BESTCOMSPlus Select Language screen is displayed
(Figure 4
can select a preferred language and this screen will be bypassed in the future. Click OK to continue. This
screen can be accessed later by selecting Tools and Select Language from the menu bar.
BE1-11t Quick Start
Figure 3. PWR Rear Terminals
). You can choose to have this screen displayed each time BESTCOMSPlus is started, or you
12 9424200995 Rev H
Figure 4. BESTCOMSPlus Select Language Screen
The BESTCOMSPlus splash screen is shown for a brief time. See Figure 5.
Figure 5. BESTCOMSPlus Splash Screen
The BESTCOMSPlus platform window opens. Select New Connection from the Communication pull-down
menu and select BE1-11. See Figure 6. The BE1-11 plugin is activated automatically after connecting to a
BE1-11t.
Figure 6. Communication Pull-Down Menu
The BE1-11 Connection screen shown in Figure 7 appears. Select USB Connection and then click the
Connect button.
Quick Start BE1-11t
9424200995 Rev H 13
Figure 7. BE1-11 Connection Screen
The BE1-11 plugin opens indicating that activation was successful. You can now configure the BE1-11t
communication ports and other BE1-11t settings.
Programming the BE1-11t
This section contains an introduction to BESTCOMSPlus, explains summary screens, and gives an
example of settings elements and programming logic.
Introduction to BESTCOMSPlus®
BESTCOMSPlus is a Windows®-based, PC application that provides a user-friendly, graphical user
interface (GUI) for use with Basler Electric communicating products. The name BESTCOMSPlus is an
acronym that stands for Basler Electric Software Tool for Communications, Operations, Maintenance, and
Settings.
BESTCOMSPlus provides the user with a point-and-click means to set and monitor the BE1-11t. The
capabilities of BESTCOMSPlus make the configuration of one or several BE1-11t T rans for mer Pr otection
Systems fast and efficient. A primary advantage of BESTCOMSPlus is that a settings scheme can be
created, saved as a file, and then uploaded to the BE1-11t at the user’s conv e nie nce.
The BE1-11 plugin opens inside the B ESTCO M S Plus main shell. The same default logic scheme that is
shipped with the BE1-11t is brought into BESTCOMSPlus by downloading settings and logic from the
BE1-11t or by selecting application type “T” on the Style Number screen. This gives the user the option of
developing a custom setting file by modifying the default logic scheme or by building a unique scheme
from scratch.
BESTlogic™Plus Programmable Logic is used to program BE1-11t logic for protection elements, inputs,
outputs, alarms, etc. This is accomplished by the drag-and-drop method. The user can drag elements,
components, inputs, and outputs onto the program grid and make connections between them to create
the desired logic scheme.
BESTCOMSPlus also allows for downloading industry-standard COMTRADE files for analysis of stored
oscillography data. Detailed analysis of the oscillography files can be accomplished using BESTwave
software.
Figure 8 illustrates the typical user interface components of the BE1-11 plugin with BESTCOMSPlus.
BE1-11t Quick Start
14 9424200995 Rev H
Figure 8. BESTCOMSPlus Typical User Interface Components
Click the View drop-down button to switch between the Settings Explorer and Metering Explorer or split
the view between both. The Settings Info Panel displays settings ranges. A workspace can be opened,
saved, or set as default. See Figure 9.
Figure 9. View Drop-Down Button
Summary Screens
Summary screens provide an overview of the system setup. The legend, located in the lower right-hand
corner, provides interpretation for the various indicated colors. The current state of a protection and
control function or element is indicated by the color of the adjacent indicator. If the function is enabled, the
color is green. If the function is disabled only by a setting (such as zero), the color is yellow. If the function
is disabled only by a mode, the color is blue. If the function is disabled by both a setting and mode, the
color is gray. The System Summary screen is available by clicking BE1-11 in the Settings Explorer as
shown in Figure 10. Summary screens are also available for General Settings, Alarm Configuration,
Protection, and Control.
Quick Start BE1-11t
9424200995 Rev H 15
Figure 10. System Summary Screen
Programming Example
Changing default logic is sometimes required to match the protection requirements of the system.
Additionally, elements must be enabled and operating settings set. This example demonstrates how to
configure typical nominal settings and program the 50-3 instantan eous ov erc ur rent elem ent. Sy s tem
nominal quantities are set to 69.3 volts and 3.6 amps. The 50-3 element is set for a 5.62 amp pickup and
a 30 second time delay. Additionally, the element pickup output is logically wired to output 4 and a user
alarm.
Step 1: Star t BE ST C OMSPlus and select New Connection, BE1-11 from the Communication pull-down
menu to connect to the BE1-11t. See Figure 6.
Step 2: The BE1-11 Connection screen appears. See Figure 7. Select USB Connection and click
Connect.
Step 3: Select Download Settings and Logic from Device from the Communication pull-down menu. This
copies all settings and logic from the BE1-11t to BESTCOMSPlus.
Step 4: Click on the View drop-down button and de-select Show Metering Panel and Show Setting
Information. See Figure 9. This maximizes the workspace.
Step 5: In the Settings Explorer, click the “+” next to BE1-11. This expands the sub menus in the tree.
Now expand System Parameters and select the Power System screen. See Figure 11.
Step 6: Under Nominal Settings, enter settings for Secondary Phase Voltage (69.3 V) and Secondary
Phase Current (3.6 A).
Step 7: In the Settings Explorer, expand Protection, Current and select the Instantaneous Overcurrent
(50-3) screen. See Figure 12.
Step 8: Select the Mode (3 Phase) and enter settings for Pickup (5.62 A) and Time Delay (30,000 ms).
BE1-11t Quick Start
16 9424200995 Rev H
Figure 11. Power System Screen
Figure 12. Instantaneous Overcurrent (50-3) Screen
Step 9: In the Settings Explorer, click BESTlogicPlus Programmable Logic to open the logic diagram.
Click the Current tab. See Figure 13. Examine the 50-3 element. The Logic 0 connected to the
Block input indicates that the 50-3 element is never blocked.
Off-Page Inputs/Outputs are used to make connections between logic pages and help keep logic
diagrams free from clutter. The Trip output is connected to an Off-Page Output named 50-3 Trip.
This 50-3 Trip Off-Page Output is carried over to the Misc. Logic tab (Figure 14) where it
becomes an Off-Page Input. The 50-3 Trip Off-Page Input and several others are AND gated to
the Trip Bus Off-Page Output which becomes an Off-Page Input (Figure 15). The Trip Bus OffPage Input is connected to the Trip input of the Fault Trigger (FAULTTRIG) element to log a 503 target and to record fault current magnitudes at the time of trip.
Quick Start BE1-11t
9424200995 Rev H 17
Figure 13. BESTlogicPlus Current Page
Figure 14. BESTlogicPlus Misc. Logic Page
BE1-11t Quick Start
18 9424200995 Rev H
Figure 15. BESTlogicPlus Misc. Logic Page
Step 10: In this step, the Pickup output of the 50-3 element is connected to Output 4. When the Pickup
output of the 50-3 element is true, the label of Output 4 is displayed in the fault report and/or
sequence of events report. The label is named in Step 12. Click the Current tab and then click
the I/O tab at the bottom. Expand Output Objects and then Physical Outputs. Click and drag
OUT4 over to the logic diagram. Click on the Pickup output of the 50-3 element and drag it to the
input of OUT4 to make a connection. Refer to Figure 16.
Figure 16. BESTlogicPlus Programming OUT4
Step 11: In this step, the Pickup output of the 50-3 element is connected to User Alarm 1. When the
Pickup output of the 50-3 element is true, the label of the user alarm is displayed on the Alarms
screen on the front-panel display and in the fault report and/or sequence of events report. The
label is named in Step 13. Click the Current tab and then click the Elements tab at the bottom.
Locate the User Alarm 1 element. Click and drag USERALM1 over to the logic diagram. Click on
Quick Start BE1-11t
Loading...