GE Energy
EX2100e and EX2100
Excitation Controls Comparison
The EX2100e Excitation system is GE Energy’s advanced
platform for generator excitation controls. The EX2100e
builds on the EX2100 experience of over 700 units in gas,
steam, and hydro applications (for new units and upgrades) in
addition to GE’s 50 years of experience with over 6,000
excitation systems in 70 countries.
The EX2100e has enhanced technology, including a new
controller from the Mark* VIe control line and the current
ControlST* software suite. In addition, the EX2100e offers a
35A brushless dual redundant regulator option for cost
effective reliability.
Controllers
Now, excitation shares the same controller with Mark VIe
application-based turbine and plant controls. These single-
board controllers offer flexible, compact packaging and more
computing power for advanced control features to enhance
grid dynamics and generator performance. In addition, the
stand-alone controllers can be easily upgraded for better life-
cycle support of the equipment.
I/O Interface
The controllers communicate to the I/O interface through a
100 MB Ethernet I/O network that can be extended for
remote I/O modules. The large, inflexible I/O cables of the
EX2100 are eliminated. Since there are less electronics in an
EX2100e, a smaller spare parts inventory is needed. Similarly,
less active electronics increases the mean-time-between-
failure (MTBF) and improves system reliability.
Controllers, I/O interface, and the bridge(s) are mounted
inside the EX2100e cabinet. Only an optional touchscreen
panel remains on the door for local control and display of
generator parameters along with alarm history and alarm/
fault help.
Software
The EX2100e uses the ToolboxST* application for
configuration and diagnostics and retains all attributes for
high-speed analysis of rotating machinery and the enhanced
look-and-feel of plant-level Distributed Control System
software. For example, the ToolboxST application can analyze
and configure I/O modules, controllers, networks, and
operator stations for generator controls, turbine controls, and
balance-of-plant controls to simplify maintenance.
g
User-friendly Configuration Tools
Proven Technology
While controllers, networks, I/O modules, and software tools
are upgraded, the heart of the system remains the same.
Proven control and protection algorithms remain unchanged.
Similarly, mission-critical power bridge technology is carried
over from the EX2100 power conversion assemblies.
In addition, control cabinet footprints are unchanged and
compliance to international regulations and standards is
retained.
Benefits
Cost effective 35A brushless dual redundant regulator
configuration
Improved reliability and less spare parts inventory
Less maintenance and on-going training costs with
common software tools
Better life-cycle support with more compute power for
upgrades and simplified controller replacement
Risk mitigation of new technology with proven algorithms
and power bridges
For further assistance or technical information, contact the
nearest GE Sales or Service Office, or an authorized GE Sales
Representative
.
© 2010, General Electric Company, All rights reserved.
* Trademark of General Electric Company.
GEA-S1256 Issued: 100813
fact sheet
(18 pages)
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