IS200ECTBG1ABB is an Exciter Contact Terminal Board used in the EX2100 excitation control system. The board handles customer contact inputs and relay contact outputs associated with excitation control and provides the interface between field contacts and the control system. IS200ECTBG1ABB belongs to the ECTBG1 redundant configuration, with input signals distributed to three controller connections and relay control using two-out-of-three voting. The board is particularly relevant to generator excitation applications where redundant contact monitoring and relay control are required for dependable operation.

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Technical Specifications For IS200ECTBG1ABB
| Item | Specification |
| Brand |
General Electric |
| Part Number |
IS200ECTBG1ABB |
| Board Type |
Exciter Contact Terminal Board |
| Excitation System | EX2100 Excitation Control |
| Configuration |
ECTBG1 |
| Control Mode |
Redundant |
| Dedicated Contact Wetting |
70 V DC |
| General-Purpose Relay Outputs |
4 |
| Relay Type |
Form C contact |
| Relay Control | Controlled by EMIO |
| Related Terminal Boards |
EPCT, EXTB, EACF |
| Controller Interface | EMIO |
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faq
Q:1.What does IS200ECTBG1ABB do in an excitation system?
A:IS200ECTBG1ABB functions as an Exciter Contact Terminal Board, handling customer contact inputs and relay contact outputs within the EX2100 excitation control system. The board provides the contact-level interface required for excitation-related status, lockout, and relay functions.
Q:2. Why would IS200ECTBG1ABB be selected for a redundant configuration?
A:IS200ECTBG1ABB uses the ECTBG1 configuration, which is specifically associated with redundant control. Input signals are distributed to three controller connections, and relay control uses two-out-of-three voting to support the redundant control architecture.
Q:3.How many general-purpose contact inputs does IS200ECTBG1ABB support?
A:IS200ECTBG1ABB provides six general-purpose contact inputs in addition to two dedicated contact inputs for 86G and 52G functions.
Q:4.What purpose does the 86G input serve on IS200ECTBG1ABB?
A:The 86G contact input on IS200ECTBG1ABB is used for lockout during normal operation. The dedicated 86G circuit is wetted by 70 V DC supplied from the exciter.
Q:5.Can IS200ECTBG1ABB monitor generator online status?
A:Yes. IS200ECTBG1ABB provides a dedicated 52G contact input for generator online status. The 52G contact input is wetted by 70 V DC from the exciter.
Q:6.What voltage supplies the dedicated contact inputs on IS200ECTBG1ABB?
A:IS200ECTBG1ABB uses 70 V DC from the exciter for contact wetting on the dedicated 86G and 52G inputs.
KEY FEATURE
Redundant Contact Handling
IS200ECTBG1ABB distributes contact inputs to three controller connections, supporting the redundant EX2100 control architecture. Relay control uses two-out-of-three voting, while the 70 V DC and 24 V DC inputs are redundant.
01
Generator and Lockout Monitoring
IS200ECTBG1ABB provides dedicated 86G and 52G contact inputs. The 86G input supports lockout monitoring, while the 52G input indicates generator online status. Both dedicated contacts are wetted by 70 V DC from the exciter.
02
Form-C Relay Interface
IS200ECTBG1ABB provides four general-purpose Form C relay contact outputs controlled through EMIO. The relay interface supports customer contact power up to the documented 125 V DC nominal level, with specified resistive and inductive load limits.
03
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