SPECIFICATIONS
Part No.: IS200EXAMG1BCB
Manufacturer: General Electric
Country of Manufacture: United States of America (USA)
Product Type: Exciter Attenuation Module
Repair: 3-5 Days
Availability: In Stock
Series: EX2100
Functional Description
IS200EXAMG1BCB is an Exciter Attenuation Module developed by GE. It is a part of EX2100 excitation system. The Exciter Attenuation Module , when combined with the Exciter Ground Detector Module, plays a crucial role in providing the ground detection system for the EX2100 Excitation Control system. Installed in the High Voltage Interface (HVI) module, which is positioned in the auxiliary cabinet of the EX2100 Excitation Control system. Its main function is to provide attenuation between the field bus and the EGDM. The module senses high voltage from the bridge (the interface between the power system and the excitation system) and scales it down to a level that is usable by the EGDM. This is crucial for accurate and safe ground detection.
Features
- Responsible for detecting ground faults within the excitation system. Ground faults can lead to operational inefficiencies and potential damage to the equipment. It works in tandem with the EXAM to monitor the scaled voltage and determine if there are any grounds (faults) present in the system.
- The interaction between the EXAM and EGDM is a multi-step process. First, the EXAM senses the high voltage present at the bridge, which is the connection point between the excitation system and the power grid. This sensed high voltage is then attenuated by the EXAM, meaning it is reduced to a lower, more manageable level that can be safely analyzed by the EGDM. Outputs this scaled-down voltage to the EGDM. The EGDM receives the attenuated voltage and analyzes it for any signs of grounding issues. If a ground fault is detected, appropriate measures can be taken to address it, ensuring the reliability and safety of the system.
- Ground detection is critical for the safe operation of the excitation control system. By detecting and addressing ground faults promptly, the EXAM and EGDM help prevent potential damage to the system. Consistent ground detection ensures the reliability of the excitation system, which is essential for maintaining the stability of the power system it supports. Furthermore, the modules facilitate easier maintenance and diagnostics by providing clear indications of ground faults, enabling timely and effective corrective actions.
Connectors and Terminals
- Connector J2: This is a 9-pin D connector responsible for interfacing with the test signal, relay control, and leakage current. It plays a critical role in ensuring the EXAM can communicate necessary operational data and control signals.
- Connector J1: This three-pin locking connector is designated for the cable connected to the field flashing relay auxiliary contact. It ensures secure and reliable connectivity.
- Stab-on Connectors E1 and E2: These connectors link the field bus voltages to the attenuator module. They provide a stable and direct connection for the high voltage signals that need attenuation.
- Terminal TB1: This terminal serves as the grounding point, connecting the EXAM board shield ground to the chassis ground within the cabinet. Proper grounding is essential for the safe operation of the module and to mitigate electrical noise and interference.
Jumpers
- JP1, JP2, and JP3: These jumpers are adjustable and are used to configure the EXAM module for different PPT (Potential Transformer) secondary voltages that may be applied. By setting these jumpers appropriately, the module can be adapted to various operational environments and voltage requirements.
- J2 (9-pin D connector): Used for test signals, relay control, and leakage current monitoring.
- J1 (3-pin locking connector): Connects to the field flashing relay auxiliary contact.
- E1 and E2 (Stab-on connectors): Connect the field bus voltages to the module.
- TB1 (Terminal): Connects the EXAM board shield ground to the chassis ground.
- Jumpers (JP1, JP2, JP3): Configurable for different PPT secondary voltages.
The WOC team is always available to help you with your EX2100 requirements. For more information, please contact WOC.
Frequently Asked Questions
What is IS200EXAMG1BCB?
It is an exciter attenuation module developed by GE under the EX2100 series.
What is the purpose of Connector J1?
Connector J1 is a three-pin locking connector designed for the cable connected to the field flashing relay auxiliary contact, ensuring a secure and reliable connection.
How do the stab-on connectors E1 and E2 function?
Stab-on connectors E1 and E2 are used to connect the field bus voltages to the attenuator module. They provide stable and direct connections for the high voltage signals needing attenuation.
What is the role of Terminal TB1?
Terminal TB1 serves as the grounding point, connecting the board shield ground to the chassis ground in the cabinet. Proper grounding is crucial for safe operation and minimizing electrical noise and interference.
