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IS200ECTBG2ADE - Exciter Contact Terminal Board is available in stock which ships the same day.
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SPECIFICATIONS:
Part Number: IS200ECTBG2ADE
Manufacturer: General Electric
Series: EX2100
Function: Exciter Contact Terminal Board
Relay Break Characteristic: 28 V dc
Operational Mode: Simplex mode only
Customer Power: 125 V dc
Relay Control Voltage: 24 V DC
Wetting Voltage: 70 V DC
Weight: 0.34 kg
Dimensions: 150 x 76 x 90 mm
Availability: In Stock
Country/Region of Manufacture: United States
Manual: GEI-100457A
FUNCTIONAL DESCRIPTION:
IS200ECTBG2ADE is an Exciter Contact Terminal Board manufactured by General Electric as part of the EX2100 series used in the Excitation control system. The IS200ECTB terminal board supports excitation contact outputs and inputs in the EX2100 Excitation Control. There are two versions: the ECTBG1 board is only used in the redundant control, and the ECTBG2 board is only used in the simplex control. Each board contains two trip outputs driving a customer lockout, controlled by the EMIO board. There are also four general-purpose Form-C contact outputs controlled by the EMIO board. Six auxiliary contact inputs are powered (wetted) with 70 V dc and monitored by ECTB. Also, the 52G and 86 G contact inputs are powered with 70 V DC and monitored. In the redundant control, power comes from both the M1 and M2 controllers.
TRIP RELAY OUTPUTS (SIMPLEX/REDUNDANT):
ECTBG2, driven by the EMIO in M1, controls two trip relays normally used as customer lockout drivers. The relay drivers are powered by 24 V dc from the M1 controller. Refer to the previous figure ECTBG2 Terminal Board, Simplex. Each customer lockout is driven by one relay using two parallel normally closed contacts. On the board, the relays are designated K1M1 and K2M1. For redundant control operation with ECTBG1, the three inputs drive three relays that control a 2-out-of-3 contact voting circuit.
CONTACT INPUTS:
Contact input uses are similar in the simplex and redundant cases, however, the inputs are fanned to the M1, M2, and C controllers for redundant control. In simplex control, only the M1 controller is connected. Six customer-supplied auxiliary contact inputs are powered and monitored by ECTB using 70 V dc from plugs J13M1 and J13M2. The resistors are isolated and supplied to the contacts. The wetting voltage can vary from 63 to 84 V dc. The state of the contact is monitored. The resulting signal drives a red-indicating LED and fans out to M1, M2, and C. One contact from 52G is monitored using the 70 V dc excitation in the same way as the auxiliary inputs. The status is indicated with a red LED. One contact from 86G is wetted with a nominal 70 V dc as above. The state of the contact is monitored by controllers M1, M2, and C.
WOC has the largest stock of GE Excitation Control System Replacement Parts. We can also repair your faulty boards and supply unused and rebuilt boards backed up with a warranty. Our team of experts is available around the clock to support your OEM needs. Our team of experts at WOC is happy to assist you with any of your automation requirements. For pricing and availability on any parts and repairs, kindly contact our team by phone or email.
What is an Exciter Contact Terminal Board?
An Exciter Contact Terminal Board is a specialized printed circuit board or terminal assembly used within generator excitation systems. It provides a structured interface for routing control, monitoring, and protection signals between the exciter and external devices such as voltage regulators, contactors, relays, and protection modules.
What types of electrical signals are commonly routed through the terminal board?
An Exciter Contact Terminal Board is designed to handle a wide range of electrical signals, including low-level analog signals (e.g., voltage and current feedback from the generator or field winding), digital signals (e.g., ON/OFF commands for contactors and relays), and discrete alarm or trip signals.
What are the typical voltages and currents handled by these terminal boards?
Exciter Contact Terminal Boards commonly handle low-level control signals (24VDC or 125VDC) for logic and relay interfacing. They may also accommodate analog feedback signals ranging from 0–10V or 4–20mA for monitoring purposes.
