Guide Form Specification
BE1-FLEX: Protection - Automation - Control System
1. Objective
This specification describes requirements for a digital multifunction system for the
protection, automation or control of Power System circuits capable of extensive future
adaptation and flexibility. Specific requirements are as follows.
2. Protection and Control
The device shall provide at least 100 total instances of any combination and any number of
each function of the below protection and control functions. Each function instance shall
include a user defined name function field.
2.1. Voltage
Over-excitation (24), Sync Check (25), Undervoltage (27), Negative Sequence
Voltage (47), Overvoltage (59), Zero Sequence Voltage (59N), Vector Jump (78V)
2.2. Frequency
Under-frequency (81U), Over-frequency (81O), Rate of Change of Frequency (81R,
ROCOF)
2.3. Current
Undercurrent (37), Negative Sequence Overcurrent (46), Single Phase, Three Phase,
Neutral, Ground and Unbalance Instantaneous Overcurrent with 2nd and 5th
Harmonic Inhibit (50, 50P, 50N, 50G, 50U), Breaker Failure (50BF), Single Phase,
Three Phase, Neutral, Ground and Unbalance Inverse Overcurrent (51, 51P, 51N, 51G,
51U), Voltage Controlled and Restrained Overcurrent (51V), Overcurrent Through
Fault Counter (51TF), Directional Overcurrent (67), DC Overcurrent (76), Phase
Differential (87), Flux Balance Differential (87FB), Neutral Differential (87N)
2.4. Power
Under Power (32U), Over Power (32O), Loss of Excitation (40Q), Power Factor (55)
2.5. Impedance
Neutral Distance (21N), Phase Distance (21P), Loss of Excitation (40Z), Out of Step
(78OOS)
2.6. Other Protection
Control Power Monitor
Configurable Protection shall include math functions (plus, minus, multiple, divide)
of at least circuit metering, power quality, energy and demand parameters
2.7. Control
Breaker control (101), Automatic Synchronizer (25A), Virtual Switch (43), Fuse Loss
(60FL), Logic Timers (62), Recloser (79), Lockout (86)
3. Sensing and I/O
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BE1-FLEX
3.1. Current Inputs
The device shall have 8 current sensing inputs channels. Any of which can be utilized for
single, dual or three-phase or ground measurements. All currents, except Sensitive Earth
Fault channels, shall accept signals from 1A or 5A nominal current transformers without
jumpers or other hardware modifications.
3.2. Voltage Inputs
The device shall have 6 set/s of three-phase voltage sensing input/s and 2 single phase
voltage sensing input/s. The single voltage sensing input/s shall be able to be used to
monitor either phase or neutral voltages. The device shall be field selectable to operate with
either wye-connected (four wire) or delta-connected (three wire) potential transformers.
3.3. Circuits
The device shall be able to configure at least 10 Circuits consisting of any combination of
voltage and current inputs as defined above. Voltage and Current inputs can be utilized in
multiple circuits.
3.4. Digital Inputs
The device shall have 8 optically isolated inputs. Each input board shall be field adjustable
to operate correctly from 0-300Vdc (or equivalent Vac) without jumper or other hardware
modifications.
3.5. Output Contacts
The device shall have 9 Form A and 6 Form C output contacts. Any Form A output can be
configured for use as a Normally Open alarm output. Any Form C output can be configured
for use as a Normally Open or Normally Closed alarm output. Each output shall be isolated
and rated for tripping duty (30 A for 0.2 seconds, 7 A continuous). All outputs shall be able
operate with 24-250 volt nominal control systems without jumper or other hardware
modifications.
4. Logic
4.1. Settings Groups
The device shall have four user-programmable settings groups.
4.2. Device Logic
The device shall include programmable logic for all outputs, inputs, and device elements for
user programming. The logic file shall generate both the logic equations to be used by the
device and graphical logic file that is saved to the device for output to printer or other
destination. Device logic shall have built in error checking, built in online status metering
and offline logic simulation. Logic always runs at a fixed rate.
5. Reporting and Alarms
5.1. Oscillography
The device shall be capable of recording events up to 128 samples per cycle on all analog
channels simultaneously. Cycles stored per record is user programmable up to 512 cycles.
The device shall be capable of storing up to 30 million data points.
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5.2. Sequence of Events Recorder (SoE)
The device shall include Sequence of Events Recording (SoE) that stores the latest 8000
events. The SoE shall monitor at least, resetting demands or targets, changing settings,
logic variables, targets, alarms, input and output contact status, fault recording triggers.
5.3. Status and Trip Targets
The device shall provide recent target and alarm information locally through the
Touchscreen HMI and faceplate LEDs, and remotely via communication ports. The device
shall have a Trip indicator and three programmable alarm groups: Major, Minor, and Logic,
based upon device logic states.
5.4. Nonvolatile Memory Status and Trip Target LEDs
The device shall retain target, alarm, oscillography, and SoE information in nonvolatile
memory.
5.5. Real-Time Metering
The device shall include real-time metering that provides watt, watthour, var, varhour,
voltage, current, voltage harmonics (up to 49th), current harmonics (up to 49th), impedance,
frequency, breaker slip/angle/voltage, power quality, demand, energy and unbalance loading
for every configured circuit. Real time metering available for all Analog, RTD and Shunt
inputs.
5.6. Demand Metering
The device shall include user-settable current demands for phase, neutral, and negative
sequence currents, and positive and negative watts and vars with magnitudes and time
stamps recorded for today's peak, yesterday's peak, and peak since reset.
5.7. Circuit Breaker Monitor
The device shall include breaker status and operations counter reporting, fault current
interruption duty monitoring, and trip-speed monitoring. A trip coil monitor circuit shall be
available to provide trip circuit continuity monitoring.
6. Communications
6.1. Device Interface
The device shall include 3 communication ports, including a front Hi-Speed USB-C port, a
rear RS-485 port, 1 100/1000Mb copper Ethernet ports.
6.2. Modbus RTU Client Communications
The device shall incorporate Modbus® RTU client protocol internally.
6.3. Distributed Network Protocol (DNP)
The device shall incorporate certified DNP 3.0 Level 2 Client protocol communications
capability internally.
6.4. Synchrophasors (Phasor Measurement Unit)
The device shall incorporate Synchrophasor communication compliant with IEEE C37.118.2
standards.
6.5. IRIG-B
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The device shall include an interface port for a demodulated IRIG-B time synchronization
input signal.
7. Settings, Metering and Analysis Software
PC software compatible with Windows® 10, Windows 8.1, Windows Server 2012 R2 and
Windows Server 2016 shall be included at no charge. The software shall be freely
reproducible within the end user’s organization without additional charge for any number of
users. The software must include serial and Ethernet communications for settings upload
and download, graphical programming and display of logic equations (including pictorial
display of AND, OR and XOR gates), and the ability to extract and export COMTRADE
oscillography and event files. The software shall be accessible to the customer prior to
purchase of the device for trial and evaluation. The software shall integrate programmable
logic with a drag and drop system that is easy to setup and modify. The setup of logic shall
be graphical. The logic shall integrate an error checking function highlighting which tabs the
errors are located. The software shall include live logic metering and offline logic simulation.
8. Mounting and Connections
The device shall be packaged in a case no larger than 8 inches wide, 9 inches deep and 10
inches tall. Suitable for panel mount and include available accessory options for 19” rack
mount. The device shall have the ability to change, add or remove boards while installed.
8.1. Current and Voltage Input Terminal Blocks and Wiring
All Current and Voltage input connections shall be to barrier terminal strips capable of
accepting ring lug connection.
8.2. HMI/Display
A high contrast seven-inch Touchscreen liquid crystal display (LCD) shall be provided
integral to the device. The HMI shall be able to display user customized One-Line images on
the Home screen. One-Lines components and lines are capable of toggling colors and
images based upon statuses measured by the device, including live or dead line and breaker
status. At least 6 Control buttons and at least 13 user defined status Indicators shall be
available on the Home screen. The HMI will include 3 customizable priority navigation tabs
for quick access to common screens.
8.3. Cybersecurity
The device shall include access privileges for Read Data and Settings, Control, Write
Settings, Write Logic, Firmware Change, Administrator and Security Audit. Access to the
device is sectionalized to allow only functionality approved for the access type. No single
access type includes all functionality.
Individual users accounts shall include any or all of the access groups. The device shall not
include any access methods or user accounts not displayed or able to be deleted within the
security settings by a user with Administration access.
Passwords shall not be visible or retrievable to any access level after they have been set
and shall not be stored in the general settings file. Users can edit only their own password.
Administrators can reset any users password. All passwords set must follow complex
password rules of 8-16 characters, at least 1 upper case letter, 1 lower case letter, 1 number
and 1 special character.
The device shall include a security log only accessible to a user with Security Audit access.
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8.4. Manufacturing and Support
The device shall be style number BE1-FLEX-K-T3T3N0C5-W9-E5-1N0-E01N, style code BE1FLEX 000114 manufactured by Basler Electric.
The device shall be manufactured in the U.S.A.
The device shall have conformal coated circuit boards.
A diagnostic log shall be available for troubleshooting assistance while still installed.
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