IS200EGPAG1B Exciter Power Distribution Module

Part Number: IS200EGPAG1B
Manufacturer: General Electric
Series: EX2100e
Product Type: PAMC Acoustic Monitor (Processor)
Availability: In Stock
Country of Manufacturer: United States(USA)

Functional Description

IS200EGPAG1B is an Gate Pulse Amplifier Board manufactured by General Electrics. It is a

part of the EX2100e series used in gas turbine excitation system. The primary function is to manage

gate commands generated by the ESEL (Excitation System Equipment List) and oversee the

gate firing process for up to six SCRs (Silicon Controlled Rectifiers) situated on the Power Bridge.

Additionally, the EGPA serves as the interface for various important monitoring functions, including

current conduction feedback, bridge airflow, and temperature monitoring.

IS200EGPAG1BCA

Features

• Gate Control: It plays a pivotal role in controlling the gate firing process of up to six SCRs on the
• Power Bridge. It takes the gate commands from the ESEL and ensures the precise and timely
• activation of these critical components. The accurate control of the gate firing is essential for
• managing power flow and maintaining system stability.
• Feedback and Monitoring: It acts as an interface for various monitoring functions, including current
• conduction feedback. It allows the system to keep a close eye on the electrical currents in the system,
• ensuring they remain within safe and desired ranges. Additionally, the EGPA is involved in monitoring
• bridge airflow and temperature, providing crucial data for thermal management and system safety.
• Power Supply Management: Receives a nominal 125 V DC power supply from the EPDM (Exciter Power
• Distribution Module). It houses an onboard DC/DC converter, which converts this input power source into
• the appropriate levels needed for SCR gating. This conversion capability allows the EGPA to function consistently across a wide range of input supply voltage conditions.
• Visual Status Indication: The board is equipped with LEDs that offer visual indications of various system
• statuses. These LEDs provide information regarding the status of the EGPA power supply, the reception of
• gate commands from the ESEL, outputs to the SCRs, currents flowing into the bridge, the performance of the
• line filter, the rotation of the cooling fan, bridge temperature, as well as any alarms or fault conditions. These
• visual indicators are essential for real-time monitoring, troubleshooting, and maintenance.