GE IS20OEHPAGlAED High-Speed Exciter Board

Product Description

The IS200EHPAG1AED is a high-performance Gate Pulse Amplifier board engineered for GE’s EX2100e and Mark VI excitation control systems. Acting as the critical link between the digital controller and the high-power section, this module receives low-voltage firing logic from the system processor and amplifies it into robust gate pulses. These pulses trigger six Silicon Controlled Rectifiers (SCRs), which regulate the generator field current to maintain voltage stability under dynamic load conditions.

Designed for harsh industrial environments, the IS200EHPAG1AED operates reliably within a temperature range of 0°C to 60°C. It is typically rack-mounted within the excitation I/O cabinet. Beyond its primary function of SCR gating, the board incorporates sophisticated diagnostic capabilities, including misfire detection and thermal monitoring, ensuring the protection of the power bridge against electrical anomalies and thermal stress.

Technical Specifications

• Model Number: IS200EHPAG1AED

• Product Type: Gate Pulse Amplifier Board

• Compatible Platforms: GE EX2100e and Mark VI Excitation Systems

• Input Voltage: Nominal 125 VDC (Supplied via EPDM module)

• Output Drive: Controls firing for six (6) SCRs

• Dimensions: 17.5 cm × 8 cm × 4.62 cm

• Weight: 0.4 kg

• Operating Temperature: 0°C to 60°C

• Mounting Style: Rack-mounted in I/O Cabinet

Applications

• Generator Excitation Control: Precisely controls SCR firing to regulate field current and generator terminal voltage.

• Power Bridge Interface: Serves as the gate driver interface between the low-voltage controller and high-power SCRs.

• System Retrofits: Fully compatible with legacy Mark VI and EX2100 installations, facilitating seamless upgrades.

• Industrial Sectors: Widely used in Power Generation, Oil & Gas, Petrochemical, Mining, and Heavy Manufacturing.