Category: Basler Electric

Functional Description

ECM-2 performs functions previously performed in ECS2100 systems by three, separate modules:

Sensor Input Module (SIM), Exciter Control Module (ECM), and Firing Control Interface Module (FCIM).

The functionality of these modules has been retained with some enhancements.

Sensor Inputs

Twenty-four, high-speed analog inputs (channels) collect data (sensing values) from the generator PTs

and CTs and other analog signal sources through hard-wired inputs. Fiber-optic connections receive

digital signals supplied by the DECS-2100 system Digital I/O Modules. Analog and temperature signals

supplied by the DECS-2100 system Analog I/O Modules are also received through fiber-optic connections

on the isolation transducer card interface. Analog inputs are digitized and provided to the excitation

circuitry for interpretation.

Power Bridge Firing Interface

This portion of the ECM-2 module provides SCR firing commands to the DECS-2100 system Bridge

Control Modules. In turn, each Bridge Control Module controls the level of dc output power supplied by

the corresponding power bridge. Power bridge output is determined by a control signal supplied from the

excitation control circuitry to the firing control logic. To generate the SCR firing signals, the firing control

circuitry creates timing signals that are time- and pattern-synchronized with the monitored, three-phase

PPT voltage. (The PPT voltage is monitored by way of an Isolation Transducer connected to the ECM-2

module’s PPT fiber-optic input.) The firing signals, interspersed with data signals, are transmitted to the

DECS-2100 system Bridge Control Modules via fiber-optic connections.

In its standard configuration, the ECM-2 module can control from one to four sets of Bridge Control

Modules and power bridges. In its optional configuration, up to 16 sets of Bridge Control Modules and

power bridges can be controlled.

In addition to power bridge control, this circuitry processes power bridge alarms received from the Bridge

Control Modules and provides the alarm data to the excitation control logic. Processed alarms include

SCR loss, high power bridge temperature, and low power bridge temperature.

Introduction

The ECM-2 Excitation Control Module provides the core functions of regulation, input sensing, and

thyristor firing control in a DECS-2100 Digital Excitation Control System. Functions previously provided by

three separate circuit boards in ECS2100 systems are now provided by one compact module. The ECM-2

replaces the Sensor Input Module (SIM), Exciter Control Module (ECM), and Firing Control Interface

Module (FCIM) previously used in ECS2100 systems.

ECM-2 advantages include:

• Fully-enclosed package provides protection of key system circuitry

• Previously-required space for three, separate circuit boards is reduced to one compact module

• The proven reliability of the ECS2100 system design with added functionality:

o Improved thyristor firing accuracy

o Increased number of analog inputs from 12 to 24

o Standard ECM-2 hardware configuration supports up to four power bridges via fiber optic

communications. The expanded fiber optic version can accommodate up to 16 power bridges

o Expanded event recording and data logging capability

o Additional USB port accepts removable storage media for downloading events, data logs,

and alarm logs without the use of a computer

o Cross-current compensation between excitation systems through a built-in communication via

RJ-45 port over Ethernet

o IRIG-B and NTP time synchronization provides synchronized data recording.

o Additional RJ-45. 10BASE-T/100BASE-TX Ethernet port for a dedicated control network

protocol

This relay monitors the voltages on both sides of a circuit breaker and

determines the existence of proper phase angle and voltage before

allowing the breaker to close.

Product Features & Benefits

• Accurate, repeatable, and reliable operation.

• Minimized PT costs as a result of low sensing burden.

• Reduced battery load with low burden power supply.

• Simple HMI provides clear and intuitive settings for easy configuration

without the use of a computer.

• Integrated voltage monitor provides complete supervision for conditions

such as dead bus, where sync-check alone is not sufficient to supervise

the breaker closing.

• LED indicators provide clear annunciation of status.

• Easily perform in-case system and device tests using test paddles.

Basler’s retrofit relays provide direct “plug and play” replacements for many

obsolete electromechanical relay designs with no wiring changes.

Other Basler relays fit into the cutouts of older electromechanical relays with

no panel drilling or cutting required. Wiring changes are required and an

adapter plate may be needed.

See the Replacement Product Selector to determine if a Basler relay can

replace your older style relay.

Product Features & Benefits

• “Plug and Play” retrofits minimize cost and out-of-service time with no case

replacement or rewiring required.

• “Plug and Play” retrofits provide easy setup with operation and settings that

mimic existing electromechanical relays.

• Retrofit-friendly numeric relays are available in cases that fit into the cutouts

of older electromechanical relays.

• Achieve financial and labor savings with a replacement relay that fits neatly

into an existing panel.

A single-phase self-powered, microprocessor-based time/instantaneous overcurrent

relay that provides cost-saving overload and fault protection for generators,

transformers, feeders, and motors. Available in multiple-rack, panel, and retrofit

mounting options.

See the Relay Upgrade Experts Chart in the Technical Resources tab below to

determine if a Basler relay can replace your older style relay.

Product Features & Benefits

• Accurate, repeatable, and reliable operation.

• No additional power source required since relays are self-powered from 50/60 Hz

systems. Available in five- or one-amp CT secondary models.

• Timings can be tailored to the application with multiple field-selectable curves.

• Flexible pickup is continuously adjustable over a wide range.

• Instantaneous protection can be set lower to provide more complete protection

with a design that minimizes transient overreach.

• Reduce arc flash hazards by applying a second independent instantaneous element

available.

• Models available to replicate decaying reset of electromechanical relay disks when

current drops to zero.

• Replace existing electromechanical relays with specifically-wired retrofit models.

• Reduce CT costs with low sensing and supply burdens.

• Reduce maintenance labor by eliminating the need for re-calibration.

• Testing is easy with drawout construction for all models and in-case testability for

most models.

Product Features & Benefits

• Entering protection settings with confidence is easy with BESTCOMSPlus®

software that provides intuitive settings with graphs, built-in error checking,

and summary screens.

• Complex protection is easy to configure and understand with preprogrammed

schemes, drag-and-drop logic, user labels, and notes provided by BESTlogic™Plus.

• The Offline Simulator in BESTlogic™Plus helps identify and troubleshoot the

logic without the expensive need for physical hardware.

• Adaptable coordination for difficult applications is made possible by 24

industry-standard timing curves and near infinite user-defined curves.

• Meet your modern communications needs with 10/100Mbit copper or 100Mbit

fiber-optic Ethernet with IEC 61850. DNP, or Modbus®.

• Connection is easy, even when using multiple large wires, with large screw

terminals for all terminations.

• Get the information you need for system analysis with distance-to-fault,

oscillography, demand metering, power quality, breaker monitoring, and other

data provided by the BE1-11.

• Easily navigate settings and metering with the intuitive Human Machine

Interface (HMI) menu and large LCD display.

• Customize displayed information to meet different application needs with

user-definable indicators and labels.

• Direct control of internal logic using Select-and-Operate buttons available

on the front panel.

• Fully configurable analog outputs can be used to drive analog meters.

Easily assigned trip points can be scaled by the user to reflect measured

parameters.

• Up to 14 combined alarm and trip temperature monitoring points are possible

using an optional RTD module.

Correctly configuring protection with confidence has never been easier

than with the BE1-11. The BE1-11 Protection System is designed with

many features to address issues with reliability arising from the

complexity of programming. With BESTspace™ files, multiple BESTlogic™Plus

preprogrammed logic schemes, and associated application notes, you can

be confident that you have the protection you need.

A single firmware that can apply across a variety of applications, including

Feeder, Intertie, Motor, Generator, Transformer and DC Power protection

applications. See the product bulletin for functions available in each style.

• Fully configurable analog outputs can be used to drive analog meters.

Easily assigned trip points can be scaled by the user to reflect measured

parameters.

• Up to 14 combined alarm and trip temperature monitoring points are possible

using an optional RTD module.

• Reduce installation costs and improve reliability by mounting an optional RTD

module near the point of measurement to minimize cable lengths.

A compact, voltage-only protective relay with multiple applications including

bus, feeder, generator/motor, and cogeneration.

The BE1-700 has been functionality enhanced compared to prior style versions.

Please see the Feature Enhancement details below under benefits for further

information.

Product Features & Benefits

Optional

• Cost effective, high performance voltage and frequency multifunction protection.

• Compact design requires minimal panel space.

• Analyze system using available information from oscillography, sequence of events,

and metering data.

• Provides flexibility in configuring a protection and control system using

BESTlogic™Plus.

• Simplify integration with distributed control systems through two independent

communication ports with Modbus® protocol support.

ES Series Protection Relays provide a wide range of cost-saving options to simplify

protection related to Generator, Transformer, Distribution, Process Control,

Auto Transfer Schemes, and Motor applications. ES relays offer many high-end

features not typically found in a low-cost device to provide simple, yet sophisticated,

protection for your applications. Multiple DIN-rail mounting options are available.

Product Features & Benefits

• Simplify protection by covering a wide range of applications using ES relays.

• Sophisticated fundamental sensing technology gives you high-end harmonic

protection capabilities that prevent false tripping and allows you to be more selective.

• DIN-rail mounting provides low-cost, fast, easy, and compact installation.

• Relay settings are simple and intuitive, making setup fast with no PC required.

• Red and green LEDs on the front panel provide intuitive, easy-to-understand

indication of system status.

• Digital microprocessor design is extremely accurate to ensure a high level of

dependability and security, giving you confidence in your settings.

• The ES relay self-monitors to detect internal component failure and, in the unlikely

event of an internal failure, flashes the Power LED.

• Voltage and Frequency models are available in six standard input voltages and

extensive custom nominal voltages.

• Many ES relay models are self-powered, eliminating the need for additional power

sources.

• Conformal coating improves protection against dust and corrosion.

• Accurate, repeatable, and reliable operation.