GTC set the standard in helping companies keep their GE controls, and we are proud to remain the global leader in supporting classic GE systems.

We carry one of the world’s largest inventory of in-stock circuit boards and other GE components, which are no longer available from the OEM. All of our parts undergo functional testing to ensure the part you receive is ready for service when you need it most.

In today’s economic period of reducing costs, GTC can save you money on remanufactured products and repairs instead of costly new parts from the OEM. In addition, we have the quality to back-up our products with an exceptional warranty program.


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GTC supplies all major components of GE panels, including:

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GE ceased support of these systems to pressure users into an expensive upgrade. Fortunately, GTC has a full stock of new, old, and remanufactured cards and parts available 24/7.

  • All cards and spare parts come with a 12 to 36-month warranty, and we offer our customers an optional exchange program
  • Repairs completed in our in-house, state-of-the-art facility are functionally tested to ensure reliability
  • Field services, including troubleshooting and commissioning are available

GTC also seeks out surplus panels, core upgrades and unwanted spares as part of our Asset Recovery service, helping us to keep costs low.

GE has been the top name in turbine control systems since the 1960’s. Known for their reliability and low failure rate, many early units are still in use in more than half a century after entering the market despite GE no longer supporting them.

To ensure these classic systems remain in operation, GTC offers support for all generations Mark I, Mark II, Mark III, Mark IV, Mark V, Mark Ve, Mark VI and Mark VIe controls.

Talk to us about:

  • Unused and Remanufactured spare parts
  • Repair with functional testing
  • Field services, including troubleshooting, outage and startup support, alarm clearing, calibration, health checks and more
  • On-site training or at our Training Facility


Our Mark components carry a 24-month warranty and may be eligible for our EXTEND™ warranty program. The remanufactured products carry a 36-month warranty.

Our large inventory includes a wide selection of Unused and Remanufactured spares for GE’s EX2000, EX2100 and EX2100e Excitation Systems, each carrying a 12 to 36-month warranty.

GE’s Digital Generator Protection (DGP) provides monitoring, control and other functions for AC generators and is preferred by many customers thanks to its dependability and security. GE discontinued the DGP in 2010, however, GTC retains an extensive inventory of DGP parts for the benefit of our customers.

Our inventory includes both unused and remanufactured:

  • Power Supply Modules (PS1 & PS2)
  • Digital Input and Target Modules (DIT)
  • Magnetic Modules (MGM)
  • Man Machine Interface Module (MMI)
  • System Process Modules (SSP)
  • Analog Interface Modules (ANI)
  • Data Acquisition Modules (DAP)
  • Digital Signal Processor Modules (DSP)
  • Test Blocks

Innovation, LS2100 and LS2100e (similar to Excitation controls)

GE has supplied Brushless Excitation Systems for aero-derivative, frame gas, and steam turbines for more than 35 years. Many prefer Brushless Systems because they eliminate brush maintenance and self-exciting PMG-sourced systems; however, aging analog voltage regulators continue to exhibit the operational reliability and parts availability issues, common in vintage systems. 

Many also have the capability to add the PSS functions being driven in today’s changing regulatory environment.

GTC allows customers who prefer Brushless Excitation Systems to continue to utilize them longer. We use energized panels for functional testing for added reliability.

Our field services for Brushless Excitation Systems include:

  • On-site and remote troubleshooting
  • Commissioning
  • Outage support
  • NERC compliance support
  • Health checks


In our experience, the TCPS supplied by GE has the highest failure rate of all Mark V cards due to increased load and aging components. That’s why we created a solution: The GTC Mark V Power Supply.

This component is a direct replacement for GE-DS200TCPSG1A, with an identical size and fit. It is ready for use, immediately out of the box. No additional hardware or adjustments are required. You get increased performance, improved reliability and longer life expectancy – all for a lower price than the old TCPS.

GTC is proud to be associated with the following trade associations:

As the performance-tested controls pioneer, GTC promises to deliver unrivaled value powered by industrial-strength service.

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North America

6 Skyline Drive, Suite 150
Hawthorne, NY 10532

Tel: (+1) 914 693 0830
Fax: (+1) 914 693 3824

Europe & Africa

Jhumat House, 160 London Road
Barking, London IG11 8BB
United Kingdom

Tel: +1 914 693 0830 Ext 301

Asia & Australia

Axis Tower Level 3
No. 2, Jalan 51A/223 Seksyen 51A
46100 Petaling Jaya
Selangor, Malaysia

Latin America

Buenos Aires, Argentina

Tel: +1 914 693 0830 Ext 402
or +54 11 6091 3507

South Asia

#541, 1st Floor, MCECHS Layout
9th Cross, 80 Feet Road
Jakkur, Bangalore
India – 560077

Tel: +91 (0) 80-29731666
Fax: +91 (0) 80-29731631

Middle East

1A-01 LIU
Dubai Silicon Oasis
United Arab Emirates

Tel: +1 914 693 0830 Ext 505
or +971 (0) 4 320 3457

Emergency Service

If a part is needed urgently, our dedicated team will mobilize at any hour of the day to get your plant back online in the shortest time possible.

USA & Canada: +1-844-482-3278

International: +1-914-693-0786

On-call 24 Hours a Day, 7 Days a Week, Worldwide Support



Professional Opportunities in the Power Industry

Our dedicated team includes engineers, technicians, customer service representatives and other valuable employees. To inquire about our available positions, please contact us.