Category: GE

GE Vernova provides a full spectrum of products and services that can contribute

to achieving the energy goals of our customers. GE Vernova designs, manufactures,

and supplies electrical protection and automation products, microgrid control

systems, network switches, gateways, and DER assets for this type of solution which

guarantees fast and low-cost deployment. GE Vernova’s GridNode Microgrid Solution

includes control and automation features such as real-time operation management,

transition management, dispatch control and optimization, operations planning, market

participation and advanced reporting and analytics.

GridNode Microgrid Controller – Hardware

The GridNode Microgrid Controller is the hardware platform

of choice for GE Vernova Grid Automation Microgrid solutions

for providing a trusted, powerful, and expandable platform.

GE Vernova’s GridNode software completes the all-in-one solution,

which includes:

• Configurator: used for programming HMI screens and

configuring communications.

• GridNode Functions: provides designed, developed, and

validated application function blocks that are flexible and

configurable based on the customers network.

• Viewer: provides a GUI for controlling and monitoring substation

systems from a station-level computer.

• Concentrator: runs on the GE Vernova Power Gateway (GPG)

and is the communications driver that gathers data from IEDs

and distributes data to different applications.

• Logic Box: includes the latest generation of IEC 61131-3

programming tools to develop complex substation logic.

Overload Curves

The curves can take one of three formats: standard, custom, or voltage dependent.

For all curve styles, the 469 retains thermal memory in a thermal capacity

used register which is updated every 0.1 second. The overload pickup determines

where the running overload curve begins.

The 469 standard overload curves are of standard shape with a multiplier value of

1 to 15.

The voltage dependent overload curves are used in high inertia load applications,

where motor acceleration time can actually exceed the safe stall time and motor

thermal limits. During motor acceleration, the programmed thermal overload curve

is dynamically adjusted with reference to the system voltage level. The selection

of the overload curve type and the shape is based on motor thermal limit curves

provided by motor vendor.

Complete integrated protection and

management of medium and large motors

The MultilinTM 469 Motor Protection System, a member of the SR family of relays,

provides protection, control, simplified configuration and advanced communications in

a cost effective industry leading draw-out construction. Designed for medium voltage

motors, the 469 delivers advanced protection with customizable overload curves and

single CT differential protection for added flexibility. The 469 also provides simplified

configuration using the Motor Settings Auto-Configurator, providing a quick and easy

set-up of motor parameters. Coupled with advanced protection and diagnostics, the 469

provides users the flexibility of multiple communication protocols allowing integration

into new and existing control networks.

Protection and Control

The 469 is a digital motor protection system designed to protect and manage

medium and large motors and driven equipment. It contains a full range of

selectively enabled, self contained protection and control elements as

detailed in the Functional Block Diagram and Features table.

Motor Thermal Model

The primary protective function of the 469 is the thermal model with six key elements:

• Overload Curves

• Unbalance Biasing

• Hot/Cold Safe Stall Ratio

• Motor Cooling Time Constants

• Start Inhibit and Emergency Restart

• RTD Biasing

The synchronism function (with the presence of line and bar volt

age) can be supervised by two undervoltage units that permit

the synchronism function when both voltages are above the set

value.

Additionally, the relay contains dead line-dead bus (DLDB), dead

line-live bus (DLLB) and live line dead bus (LLDB) units, with the

ability to select any combination of them through independent

settings.

The basic relay, MLJ1000. and the RS-485 communications

model, MLJ1005. are mounted in a 2″ module that is compatible

with the MID industrial systems.

They can also be provided in an individual 1/8 rack. The relays

with additional communications via RS232 and plastic or glass

fiber optics, models MLJ1006 and MLJ1007. come with an addition

al 2″ card. The set can be mounted in either a 4″ module for

MID compatibility or a 1/4 rack case to be used as a stand alone

relay.

Functions

• programmable synchronism verification (voltage, phase and

frequency)

• two operating modes: continuous and manual

• dead line-dead bus (DLDB), dead line-live bus (DLLB) and live line

dead bus (LLDB) units

• real time measuring of line and bus voltages, voltage difference,

phase difference and slip

• registering of the last close permitted

• visual indication of the line and bus status (live/dead)

• configurable auxiliary outputs

• local interface with push buttons and display

• RS485. RS232 and fiber optics communications

• self test functions

• compatible with MID industrial systems

Man Machine Interface

Keypad

Composed of three buttons with the symbols +, -, and ENTER.

Permits performing the following functions:

• view measurements

• view relay status

• view or change settings

• indicators and inputs testing

Description

The MLJ is a digital synchronism check relay that measures bus

and line voltages, checking:

• voltage differences

• frequency slip

• phase angle between both voltages

The main applications of the MLJ are:

• connection of a generator to the network

• reestablishing the connection between two parts of the

network

• manual closing of breakers

The relay sends a closing output to the breaker when all of the

values fall within the set limits and maintain these values for a

period of time which has been set by the user. If any of the

condi tions are not met, the relay will provide a close condition

fault signal.

The relay has two operational modes:

• a continuous mode in which itconstantly checks the synchro

nism

• the manual mode is activated when voltage is applied to a

manual digital input, initiating the synchronism supervision

when voltage is applied by another check starting digital

input

Synchronism check relay for interconnection of AC system parts.

Features and Benefits

• RS485. RS232 or fiber comm. available

• Configurable auxiliary outputs

• V  f  Hz line and bus metering

• Continuous or manual modes

• Part of a modular system

• Independent 2″ or 4″ modules

• 1/4 or 1/8 standard 19″ rack case available

• 3 digit display

Applications

• Generator and network synchronism

• Bus or line synchronism check

• Manual closing of breakers

Protection and Control

• Synchronism check operation

• Undervoltage supervision

• DLDB, DLLB and LLDB indication

IS200ERAXH1A

IS200ERAXH1A is a EX2100E EXCITATION CONTROL REGULATOR AUXILIARY I/O (ERAX) BOARD

Reliability

IS200ERAXH1A board is very reliable and so less prone to damage. But the improper handling and poor storage can affect the functionality of the card. So that we recommend keeping the cards in static sensitive storage boxes in recommended conditions.

Repairing

If you experience any issue with IS200ERAXH1A, we can quickly test, diagnose and fix it. Expedite repair option is also available for IS200ERAXH1A. The cards are repaired using proper tools and experts in a controlled environment. All the parts needed for repairing the board are in our stock. We also ensure that the replacement components are industrial grade and meet or exceed OEM standards. FVT tested all repairs and comes with a warranty.

Refurbishing

Proper refurbishing of the IS200ERAXH1A circuit board can increase its longevity also.

The refurbishing process includes,

Replacing all aging and commonly failing components.

Applying TIL modification if there is any.

Reflowing solder to eliminate dry solder.

Thorough Industrial standard cleaning of the card.

Applying a protective coating, etc.

Functional Verification Test

We also carry out the FUNCTIONAL VERIFICATION TEST of IS200ERAXH1A in an actual OEM system setup. Because of using the OEM system, we can assure 100% reliability. Like any other card, all inputs and outputs will be individually verified for their functionality. So every channel is individually verified. Depending on the board, we also do load testing to ensure the proper stability of the board.

Circuit Board Handling.

IS200ERAXH1A is a static-sensitive board like the VME boards.

We recommend minimizing hands-on contact with PCB, especially in the conducting area. If you need to hold them directly, hold them on their edges. Always wear antistatic gloves. These units need to handle with proper ESD safety precautions.

IS200ERSDG1A

IS200ERSDG1A is a GE EX2100e Excitation Regulator Converter Board. The most advanced control system from GE for new and retrofit steam, gas or hydro generators is the EX2100e Excitation Control Regulator System.

Reliability

IS200ERSDG1A board is very reliable and so less prone to damage. But the improper handling and poor storage can affect the functionality of the card. So that we recommend keeping the cards in static sensitive storage boxes in recommended conditions.

Repairing

If you experience any issue with IS200ERSDG1A, we can quickly test, diagnose and fix it. Expedite repair option is also available for IS200ERSDG1A. The cards are repaired using proper tools and experts in a controlled environment. All the parts needed for repairing the board are in our stock. We also ensure that the replacement components are industrial grade and meet or exceed OEM standards. FVT tested all repairs and comes with a warranty.

Refurbishing

Proper refurbishing of the IS200ERSDG1A circuit board can increase its longevity also.

The refurbishing process includes,

Replacing all aging and commonly failing components.

Applying TIL modification if there is any.

Reflowing solder to eliminate dry solder.

Thorough Industrial standard cleaning of the card.

Applying a protective coating, etc.

Functional Verification Test

We also carry out the FUNCTIONAL VERIFICATION TEST of IS200ERSDG1A in an actual OEM system setup. Because of using the OEM system, we can assure 100% reliability. Like any other card, all inputs and outputs will be individually verified for their functionality. So every channel is individually verified. Depending on the board, we also do load testing to ensure the proper stability of the board.

Four LEDs are located at the top of the board.  The Restart pushbutton is located immediately

below the LEDs.  The RS-232 serial port with the RJ-11 connector is the Station Manager port.

The RS-485 serial port with the 15-pin D connector located below the Station Manager port is the

module’s Downloader port.  The 14-pin AAUI connector, facing downward, is the Transceiver

port.  The Default MAC Address label is attached to the outside of the plastic housing.

Board Indicators

There are four LEDs on the Ethernet Interface:  OK, LAN, SER, and STAT.  These LEDs can be

ON, OFF, BLINKING slow, or BLINKING fast.  They indicate the state the Interface is in, traffic

on the Transceiver port and Downloader port, and when an exception event has occurred.

Restart Button

The Restart button serves four functions:  LED test, Restart, Restart and Reload, and Restart and

Enter Maintenance Utility.  The Restart button is inaccessible when the front cover of the Ethernet

Interface is closed.

Serial Ports

There are two serial ports on the Ethernet Interface:  the Station Manager Port and the Downloader Port.

The Station Manager Port.  This RS-232 port is used to connect a terminal or terminal emulator

to access the Station Manager software on the Ethernet Interface.  This port uses a  6-pin, RJ-11

connector.  The IC693CBL316 Station Manager cable is ideal for connecting to this port .

The Firmware Upgrade Port.  The 15-pin, D-type, RS-485 port is used to connect to the PC

Downloader in case the communications software in the Ethernet Interface needs to be updated.

Use the IC690ACC901 miniconverter/cable kit for this connection.