Benefits

• A wide variety of redundancy options increases system reliability.
• An available suite of limiters coordinates with protective functions to help maintain safe operating parameters and avoid system downtime.
• Various protection functions are integrated into the controller to avoid system damage.
• Dual gain settings can maximize excitation system performance based on load conditions.
• Improve system reliability and stability by coordinating dual settings groups for limiters and protection to match generation system conditions.
• A soft start feature maintains generator voltage control during system startup to prevent undesired overshoots.
• Time synchronizing provisions facilitate event analysis with a common chronological reference to aid in coordination efforts when comparing oscillography files from other devices.
• Real-time monitoring and built-in test provisions simplify system testing and reduce commissioning time.
• Entering settings with confidence is easy with BESTCOMS™Pro. Software provides intuitive settings with graphs, built-in error checking, and summary screens.
• Power Drawers allow for simple online and offline maintenance of complete rectifier bridges that can reduce or eliminate exciter down time.
• Sequence of Events and Oscillography Recording provisions collect valuable system data triggered by disturbances for event analysis.
• Avoid costly generator damage and improve overall system stability with Basler Electric's integrated Power System Stabilizer (optional) that utilizes the "integral of accelerating power" to safely dampen local mode, inter-area and inter-unit power oscillations.
• Basler's in-house engineering, fabrication, manufacturing, and test capabilities provide maximum control of processes and product design, resulting in the highest quality and maximum reliability while offering shorter lead times.
• Optional supervisory channel increases system security by avoiding inadvertent tripping with two-out-of-three controller comparison technique.

Manuals

Bulletins

• Product Bulletin

  • CRB Compact Bridge Rectifier Bulletin, Rev 5, English (1.4MB)
  • DECS-2100 Bulletin, Rev 13, English (1.2MB)
  • DECS-2100 Bulletin, Rev 13, Chinese (1.5MB)

• Brochure

  • Brochure: Power Systems Solutions - Proven Worldwide, English (5.9MB)
    Solutions for Excitation Systems, Protection Systems/Relays, Voltage Regulators, and Genset/Engine Controllers.
  • Brochure: Power Systems Solutions - Proven Worldwide, Japanese (6.4MB)
    Solutions for Excitation Systems, Protection Systems/Relays, Voltage Regulators, and Genset/Engine Controllers.

Technical Resources

• Comparison Table

  • Comparison: ECS2100 to DECS-2100 (61KB)

• Guideform Specification

  • Guideform Specification: DECS-2100 (DOC) (55.3KB)
  • Guideform Specification: DECS-2100 (PDF) (219.8KB)

• Retrofit Chart

  • The Excitation Upgrade Experts (105.9KB)
    Basler Electric's retrofit solutions.

• Technical Paper

  • Technical Paper: Digital Excitation Systems—Growing Obsolescence of Aging Systems (752.1KB)
    The life expectancy of digital excitation systems is influenced by the availability of spare and replacement parts. Many factors affect the ability of manufacturers to continue producing these systems and providing replacement parts. Strategies exist for prolonging the life of existing digital equipment and minimizing the cost impact of complete replacement.
  • Technical Paper: Digital Front Ends Offer New Life for Aging Static Exciter Systems on Hydro Turbine Generators (2.7MB)
    Application and advantages of retrofitting an excitation system to replace the analog front end controls with a state-of-the-art digital controller, firing circuits, power supplies, field ground detector, and other components, while maintaining the original excitation power bridge and Power Potential Transformer.
  • Technical Paper: Feature Enhancements in New Digital Exctation System Speed Performance Testing (1.7MB)
    Technology built into the excitation system can ease the burden of performing required tests.
  • Technical Paper: Modern Digital Controllers Provide Additional Features to Improve Hydro Generators (2.2MB)
    Modern digital automatic voltage regulators (AVR) provide many more features to benefit hydro-power generation.

• Textbook Order Form

  • Textbook: Excitation Control Systems, Second Edition Order Form (180.2KB)
    This book offers the reader a thorough understanding of excitation control systems, including the synchronous generator, exciter and voltage regulator. It is now available through direct order, via the PDF form. If the PDF file does not open correctly, right-click on the link and select "Save Link As" to save the PDF file to your PC.

Applications

• Application Note

  • Application Note: EX-CROSSCOMPOUND2 (1.7MB)
    Static Exciter Upgrade for Cross-Compound Turbine Generators.
  • Application Note: EX-D2100_MODULES (2MB)
    Overview of the upgraded DECS-2100 accessory modules.
  • Application Note: EX-D2100BRIDGE, English (629.2KB)
    Bridge redundancy in the DECS-2100 increases reliability in the unlikely event of a bridge failure and helps prevent costly downtime.
  • Application Note: EX-DFE (1.6MB)
    Digital Front-End Retrofits for GE EX2000 and LCI on GE 7FA Turbines.
  • Application Note: EX-ECM2 (1.7MB)
    Basler's ECM-2 offers the next generation of excitation control.
  • Application Note: EX-EX2000 (3MB)
    Basler's DECS-2100 provides a front end retrofit solution for a GE EX2000 static excitation system.
  • Application Note: EX-JJCD2100 (1.2MB)
    Basler's DECS-2100 provides retrofit solution for an ABB Unitrol M excitation system.
  • Application Note: EX-WDR2000FE (1.7MB)
    The solution for WDR-2000 obsolescence.
  • Application Note: EX-D2100BRIDGE, Spanish (682.3KB)
    Bridge redundancy in the DECS-2100 increases reliability in the unlikely event of a bridge failure and helps prevent costly downtime.

Case Studies

• Case Study

  • Basler’s Solution to Obsolete Toshiba Systems (690.4KB)
    Three major power facilities switched to the DECS-2100 from Toshiba’s Exciter/Governor Systems, citing the DECS-2100 is much easier to program and more reliable.
  • Digital Front-End Retrofits for GE EX2000 and LCI on GE 7FA Turbines (284.5KB)
    Most of the early-era digital control devices are no longer available, leaving equipment owners hoping they have no failures. In this case study, the customer needed to retrofit a GE EX2000 and LCI on their GE 7FA Turbine.
  • One Good DECS Deserves Another (616.8KB)
    Throughout Taiwan’s history, many government-owned power plants were built to supply power for the main island of Taiwan and its outlying islands. Basler excitation systems and protective relays are widely used in these plants.
  • One of Basler’s First SSE’s Still Carrying the Load of a 2MW Generator (1.8MB)
    From the early days of rotating exciters to today’s digital static excitation systems using power semiconductors, Basler’s generator excitation systems have made great strides in innovation and efficiency while always maintaining their reputation for legendary reliability.
  • Replacing an Aging GE System with a DECS-2100 Excitation System (899.5KB)
    In October 2015, a large Midwestern utility decided to replace an aging GE excitation system at one of their generating stations. They specified a Basler DECS- 2100 system and selected E2 Power Systems (E2PS) to carry out the very challenging installation.