DS200FGPAG1AFC | GE Gate Pulse Amplifier Board

Description

The General Electric Gate Pulse Amplifier Board DS200FGPAG1A provides three main functions; SCR status monitoring, switching power supply, and gate driver. The model has a gate driver and status circuits built into the board, as well as fifteen fiber-optic connectors.

Part Number: IS200FGPAG1A Manufacturer: General Electric Series: EX2100 Output Voltage: 0-2300, 4160, or 6600 VAC Standards: UL, CE, and CSA Availability: In Stock Product Type: Gate Pulse Amplifier Board Country of Manufacture: United States (USA)

Gate Pulse Amplifier Board DS200FGPAG1A is from the LS2100 Series produced by General Electric Industrial Systems. This board has three primary yet basic functions to be used with the LCI (Load Commutated Inverter), these functions are SCR status monitoring, gate driver, and switching power supply. There are also three FGPA’s which are each for every three-phase silicon-controlled rectifier bridge. The power supply voltage on the DS200FGPAG1A should read at an input of 120 VRMs, and the approximate maximum voltage should read at 350 VA.

Functional Description IS200FGPAG1A is a Gate Pulse Amplifier Board developed by General Electric. It is a part of the EX2100 Excitation system. The FGPA is the gate driver, switching power supply, and SCR status monitors for the LCI. The LCI control sends gating commands to the board (via fiber-optic cables). Each FGPA provides sufficient gate power and duration for one phase of an SCR bridge. This is sent to CTs on the FHVA boards, which interface with the SCRs. Features The switching power supply circuit converts alternating current input to the alternating current control voltages required for status and gating functions. It takes a 120 V alternating current input from a power supply and outputs the following voltages: P5 (4.7 - 5.1 V dc) logic power supply No monitoring of P15 (13.5 - 14.5 V dc) P40 (25 V dc) for back porch gate To begin gating, use P90 (80 V dc) Characteristics

The control is interfaced to the Power Bridge via the board. The component receives gate commands from the controller's board and generates gate-firing pulses for six SCRs (Silicon Controlled Rectifiers). It also serves as an interface for current conduction feedback as well as bridge airflow and temperature monitoring. An RTD is used on a new exciter to monitor temperature and generate alarms. Additional switches activated by fan rotation track the flow of cooling air across the bridge. The exciter may accept feedback from two thermal switches mounted on the SCR heatsink assemblies in an exciter controls only retrofit. At the alarm level, one thermal switch opens, and the other at the trip level. These switches are connected to the board and may need retrofitting into the existing bridge. A bridge overtemperature alarm is generated if either switch is opened. A fault and a trip are generated if both switches are open.

It is an electronic power supply board, mainly used to supply the electric energy required by the excitation system of the power generator. The excitation system of electric generator is an important part of electric power plant, which is used to control the output voltage and current of electric generator to maintain the stability of electric power system. Features and functions: This exciter source board may have the following characteristics and functions: Power output: It provides the power supply voltage and current required by the excitation system to ensure that the generator can produce a stable power output. Voltage regulation: The exciter source board usually has a voltage regulation function to adjust the output voltage of the power generator as needed. Overcurrent protection: To protect the excitation system from current overload, the power supply board may include overcurrent protection. Communication interface: Some exciter source boards may have a communication interface for communication and data transfer with the generator control system or monitoring system. High reliability: Considering the criticality of electric power plants, this type of power supply board usually has high reliability and stability.

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