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Description
DS200ADGIH1AAA GE 2000V DC Generator Interlock Control BoardHigh Voltage Generator Interlock and Control Interface General Electric engineered the DS200ADGIH1AAA for critical generator protection. This Auxiliary DC 2000V Generator Interlock Card operates within EX2000 excitation systems. It provides essential interlock and control functions for high voltage DC auxiliary systems in gas turbine applications. Core Technical Specifications Manufacturer & Model: General Electric DS200ADGIH1AAA Product Type:
High-Voltage Generator Interlock and Control Interface
General Electric engineered the DS200ADGIH1AAA for critical generator protection. This Auxiliary DC 2000V Generator Interlock Card operates within EX2000 excitation systems. It provides essential interlock and control functions for high-voltage DC auxiliary systems in gas turbine applications.
Core Technical Specifications
- Manufacturer & Model: General Electric DS200ADGIH1AAA
- Product Type: Auxiliary Interface Board
- Series: EX2000 Excitation Control System
- Analog Output: 0-20 mA current loop
- Power Requirements: +5 VDC
- Operating Temperature: -30°C to +65°C
- Board Size: 8 × 6 inches (17.8 × 33.02 cm)
High-Voltage DC Auxiliary System Interface
- Interfaces with 2000V DC auxiliary system for generator excitation
- Supports static excitation systems with thyristor bridge control
- Derived from station battery or dedicated auxiliary DC bus
- Critical for generator field winding excitation applications
- Coordinates with excitation control systems and brushless exciters
- Essential for safe turbine-generator startup and shutdown
Interlock and Control Functions
- Hardwired logic and PLC-based interlock enforcement
- Generator breaker cannot close without established field voltage
- Field flashing blocked until permissive signals are satisfied
- Turbine at rated speed and field breaker closed verification
- 2kV DC system faults trigger turbine control system trips
- Fast-acting interlocks for overvoltage, overcurrent, ground fault
Protection Relay Coordination
- ANSI 59 overvoltage protection interface
- ANSI 64 ground fault detection coordination
- ANSI 87G generator differential protection
- ANSI 40 loss of excitation protection
- Synchronizing relays for grid synchronization
- Turbine supervisory instruments for mechanical readiness
System Compatibility
- Matches control logic with turbine controllers via discrete I/Os
- Relay logic and Modbus/TCP signal compatibility
- Coordinates with Excitation Control Systems (Basler DECS, GE EX2100)
- Works with breaker management relays (SEL-751, GE Multilin SR489)
- Integrates with Mark VIe, Woodward, and Allen-Bradley PLCs
- Seamless interfacing with generator control panels
Installation Requirements
- Housed within excitation cabinets and generator control panels
- High-voltage DC cabling with insulation rated above 2kV
- Robust grounding systems for operator safety
- Interconnection with analog/digital I/Os of turbine control system
- Interface relays, fuses, and isolators for circuit segmentation
- Strict segregation and shielding for noise prevention
Physical Board Components
- One 40-pin connector for main system interface
- Sixty jumpers for flexible configuration options
- One 6-pin connector for auxiliary connections
- Multiple test points for circuit verification
- Four screw mounting points for rack installation
- Designed for drive cabinet mounting
Testing and Servicing Requirements
- Qualified servicer only for board testing
- Calibrated testing equipment designed for the task
- Proper control settings and compatible test probes
- Place board on flat surface with protective bag underneath
- Test points provide means to verify circuit functionality
- Regular testing ensures reliable operation
ESD Protection Procedures
- Wrist strap must be worn at all times during handling
- Attach one end to wrist and other to metal workbench leg
- Static attracted to metal ground exits board and body
- Avoid moving while holding board to prevent static buildup
- Static risk increases during cool and dry weather conditions
- If no wrist strap, touch static bag to metal structure
System Integration
- Part of Mark V Turbine Control System Series compatibility
- Designed for steam and gas turbine automated drive assemblies
- Normal assembly type with three revision history
- Backwards compatible with first two revisions
- Manufactured by GE General Electric
- United States origin with quality construction
Application Areas
- Gas turbine excitation control systems
- Generator field flashing and excitation control
- High-voltage DC auxiliary power distribution
- Turbine-generator synchronization sequences
- Emergency shutdown and fault protection
- Generator control panel integration
Product Availability & Services
- Current Status: In stock for immediate shipment
- Repair Services: 3-7 day repair turnaround available
- New and original General Electric component
- Complete with necessary documentation
- Ready for integration into excitation systems
- Manufactured to industrial quality standards
Shipping & Delivery
- Fast shipping via FedEx, UPS, and DHL services
- Orders typically ship within 24 business hours
- International shipping available worldwide
- Complete tracking information provided
- Professional packaging ensures board protection
Frequently Asked Questions (FAQ)
What is the primary function of this board?
- The DS200ADGIH1AAA provides interlock and control functions for 2000V DC auxiliary systems supporting generator excitation and protection.
What voltage systems does it interface with?
- Interfaces with 2000V DC auxiliary systems derived from station batteries or dedicated DC buses for generator field excitation.
What protection relays does it coordinate with?
- Coordinates with ANSI 59, 64, 87G, and 40 protection relays for overvoltage, ground fault, differential, and loss of excitation protection.
What are the power requirements?
- Requires +5 VDC power supply and provides 0-20 mA analog output for control and monitoring functions.
What installation precautions are required?
- Requires high-voltage cabling with 2kV+ insulation, robust grounding, strict signal segregation, and proper ESD protection procedures.
What testing provisions are included?
- Features multiple test points for circuit verification, requiring qualified servicers with calibrated testing equipment.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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- Standard Shipping : 3-10 business days
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Exchange/Return Notes
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4.3 ★★★★★
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Product Reviews
★★★★★ 4
Good book that will help with your RHCSA, But...
Format: Kindle
...watch out for typos and problems with some of the explanations in some parts of the book.
I bought this book (kindle version) and used it to pass the RHCSA. The book is clearly tailored for the RHCSA and to be fair does live up to that reputation. There are a lot of exercises and examples that clearly outline what the author is trying to convey. Examples are clear to understand and if you do the exercises yourself, then you are well on your way to passing the RHCSA.
However, there are a lot of typos big and small and I did send them to the author with the assumption that it would benefit others with the corrections (especially the kindle version). The author was responsive at the beginning acknowledging the errors. I did not check whether they have been fixed or not. I just went through the content after making note of the typos and with the understanding that he would fix it.
The topics are well covered and explained. Three topics that could have been better covered are SELinux, AutoFS and Containers. The explanation uses excessive word-o-logy that leaves somebody new to SELinux with tons of confusion and more questions. I used youtube resources to prep myself on the how and why (Ed Walsh on a youtube channel clearly explains the need for SELinux - I have not seen a better explanation than Ed's anywhere else). The author's coverage of AutoFS is again excessive word-o-logy that is a confusing mess. The examples are fine, but the explanation uses confusing rhetoric that can leave you messed up with NFS and AutoFS setup. I read explanations on direct and indirect mappings and watched a couple of youtube videos before I understood what the author was trying to convey. I pointed out both of these to the author.
The container chapter is missing explanations or examples that the reader is well advised to take note. DIY labs 22-3 and 22-4 relate to rootless containers and therefore has to be launched as a regular user. Both labs require that you launch rootless, persistent data containers with folders under /. However, the author does not mention in any of his examples that this type of container requires you to "chown" the folders under root to belong to the user. If you launch a rootless container with this setup as a regular user without "chown"ing, (even with full DAC permissions for everybody) then SELinux does not want to apply the correct context type (container_t to the shared folder). For both these DIYs, if you make a folder anywhere other than areas that a regular user can write or has access, then you will need to "chown" it to the user before launching the rootless container, otherwise this has to be launched as a root container not rootless. I pointed this out to the author. I did not hear from him. Further, container questions (20,21,22) in mock exam #3 has user60 with a NFS mounted home folder. The questions relate to launching rootless containers as user60 with a NFS mounted home folder. SELinux barfs when it encounters the home folder with a type context as "nfs_t" for user60. It suggests workarounds that did not work for me. I googled it and the latest versions of podman seem to have some fix for the errors associated with a home folder on a NFS server. I tried to research this issue further but had an exam scheduled within days. Therefore, I requested the author for clarification/help. Here again, I did not hear from him. Luckily, I did not have to work on any such scenarios on the real test.
Still, the book is a good reference to the topics on the test and is pretty useful. Although I had to refer to other resources for some chapters, the examples and mock exams are very good.
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Reviewed in the United States on June 12, 2023
★★★★★ 5
Excellent Study Bundle! Don't Let Negative Reviews Fool You!
Format: Paperback
I received the four books in a box, and they arrived brand new and exactly as described. These books are truly great for learning and easy to follow.
I was almost discouraged from ordering because of some of the negative reviews, but I'm so glad I decided to see for myself and ordered this bundle deal.
While the internal pictures and screenshots are not high definition or in color, they are perfectly easy to view and follow along. The author does an excellent job of guiding you, telling you exactly what to look at within the picture to follow along and understand the concepts. All the screenshots are spot-on and very readable.
This is my first set of A+ books from Sybex, and I have the two main study books, the review guide, and the practice questions book. Wow! What else can I ask for?
I used to rely on the big books with the golden covers, but they didn't have the latest editions. Too bad for them—this is a huge gain for me! Thank you, Sybex and Authors!
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Reviewed in the United States on November 12, 2025
★★★★★ 5
Great fully encompassing training
Format: Paperback
Covers all the questions , scenarios for multiple A+ exam options
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Reviewed in the United States on March 23, 2026
★★★★★ 5
I recommend
Format: Paperback
Good condition
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Reviewed in the United States on March 22, 2026
★★★★★ 4
reading this helped me pass the A+ core windows 1 exam and security plus
Format: Paperback
Problem is that I am 63 years old having earned the certificate and the industry doesn't seem to welcome older workers . I used to help maintain a fleet of printers at two large companies. I have read about other more experienced tech workers in their 50s getting jobs now working in pharma working at sterilization technicians because IT seems to be puking jobs.
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Reviewed in the United States on March 18, 2026