IS200EGPAG1B  EX2100e PAMC声学监视器（处理器）

零件号:IS200EGPAG1B
制造商:通用电气
系列:EX2100e
产品类型:PAMC声学监视器（处理器）
供货情况:有现货
制造商所在国家:美国

功能描述

IS200EGPAG1B是由通用电气公司制造的门脉冲放大器板。它是用于燃气轮机励磁系统的EX2100e系列的一部分。主要功能是管理ESEL（励磁系统设备列表）生成的闸门命令，并监督位于电力桥上的多达六个SCR（可控硅整流器）的闸门点火过程。此外，EGPA作为各种重要监控功能的接口，包括电流传导反馈、电桥气流和温度监控。

特征

• 闸门控制:它在控制功率桥上多达六个SCR的闸门点火过程中起着关键作用。它接收来自ESEL的闸门命令，并确保这些关键组件的精确和及时激活。精确控制闸门启动对于管理功率流和保持系统稳定性至关重要。
• 反馈和监控:它作为各种监控功能的接口，包括电流传导反馈。它允许系统密切关注系统中的电流，确保它们保持在安全和所需的范围内。此外，EGPA还参与监控桥梁气流和温度，为热管理和系统安全提供重要数据。
• 电源管理:从EPDM（励磁机配电模块）接收标称125 V DC电源。它内置一个板载DC/DC转换器，该转换器将该输入电源转换为SCR选通所需的适当电平。这种转换能力使EGPA能够在各种输入电源电压条件下稳定工作。
• 视觉状态指示:主板配有led指示灯，可提供各种系统状态的视觉指示。这些led提供有关EGPA电源状态、从ESEL接收闸门命令、SCR输出、流入桥的电流、线路滤波器性能、冷却风扇旋转、桥温度以及任何警报或故障条件的信息。这些可视指示器对于实时监控、故障排除和维护至关重要。

传感器输入

传导电流传感器

• 电桥输入的所有三相都配有传导电流传感器。
• EGPA作为这些传感器和主控制系统之间的接口，这些传感器是位于EXCS（励磁控制系统）板上的霍尔效应传感器。
• 向EXCS供电，EGPA接收来自EXCS的信号，指示流经三相桥输入每条支路的电流状态。
• 这些状态信号通过连接器J9和J10传送到EGPA。EGPA对这些信号进行处理，并将桥的当前状态传输给控制器。

桥式温度传感器

• 使用RTD（电阻温度检测器）传感器输入或温度开关输入监控电桥的温度。
• 在新型激励器中，仅使用RTD输入，EGPA上的跳线禁用温度开关输入。
• 在使用EX2100控制器改造电桥的情况下，两个温度开关输入用于连接已经安装在电桥上的温度开关。在这种情况下，RTD输入保持打开以禁用它。
• RTD和温度开关输入都在接头J13处连接到EGPA。

气流传感器（风扇旋转）

• 为了防止过热，气流传感器用于检测网桥中风扇冷却的损失。
• 它可以容纳多达四个风扇，这些风扇通过连接器J12连接到它。
• EGPA接受来自风扇的脉冲或干接触、常开传感器输入。信号检测模式通过伯格跳线JP2-JP4进行配置。

线路过滤器保险丝故障传感器

• 通过EGPA上的连接器J14检测和监控线路过滤器保险丝故障。
• 该传感器输入接受单个常闭干触点输入。它旨在检测线路滤波器保险丝中的任何故障，提供电源潜在问题的早期指示。

更换程序

• 给激励器断电:确保容纳电路板的激励器断电，以避免更换过程中出现任何电气危险。
• 电路测试:打开电源转换柜门，对电路进行彻底测试，以验证在开始任何操作之前电源已完全关闭。
• 检查指示灯:确认所有指示灯均已关闭，以确保主板上没有残余电量或信号传输。
• 电缆标签验证:确保连接到主板的每条电缆都贴有正确的标签，如主板上所示。正确的标记简化了以后的重新连接过程。
• 小心断开电缆:小心断开连接到主板的所有电缆，注意避免损坏连接器或主板本身。
• 移除主板:轻轻地将主板从安装位置移除，确保顺利抽出而不会对附近的组件造成任何干扰。
• 验证替换板跳线:安装前，仔细检查替换卡，确认所有跳线位置正确，与原始板的配置一致。
• 安装更换板:小心地将更换板重新插入指定的安装插槽，确保安装和对齐正确。
• 重新连接电缆:重新连接在前面步骤中拆除的所有电缆，确保它们正确地重新连接到更换EGPA板上的相应连接器。牢固拧紧连接，防止接触松动。

IS200EGPAG1B

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.

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.

Sensor Inputs

Conduction Current Sensors

• All three phases of the bridge input are equipped with conduction current sensors.
• The EGPA serves as an interface between these sensors, which are Hall Effect sensors located on the EXCS (Excitation Control System) boards, and the main control system.
• Power is supplied to the EXCS, and the EGPA receives signals from the EXCS indicating the status of current flow through each leg of the three-phase bridge input.
• These status signals are delivered to the EGPA through connectors J9 and J10. The EGPA conditions these signals and transmits the bridge’s current status to the controller.

Bridge Temperature Sensors

• The temperature of the bridge is monitored using an RTD (Resistance Temperature Detector) sensor input or a temperature switch input.
• In new exciters, only the RTD input is used, and jumpers on the EGPA disable the temperature switch inputs.
• In cases where a bridge is being retrofitted with an EX2100 control, the two temperature switch inputs are utilized to interface with temperature switches already mounted on the bridge. In this scenario, the RTD input is left open to disable it.
• Both the RTD and temperature switch inputs are connected to the EGPA at connector J13.

Airflow Sensors (Fan Rotation)

• To prevent overheating, airflow sensors are used to detect the loss of fan cooling in the bridge.
• It can accommodate up to four fans, which are connected to it through connector J12.
• The EGPA accepts either a pulsed or dry-contact, normally open sensor input from the fans. The mode of signal detection is configured through berg jumpers JP2-JP4.

Line Filter Fuse Failure Sensor

• A line filter fuse failure is sensed and monitored through connector J14 on the EGPA.
• This sensor input accepts a single, normally closed, dry contact input. It is designed to detect any failure in the line filter fuse, providing an early indication of potential issues with the power supply.

Replacement Procedures

• De-Energize the Exciter: Ensure the exciter where the board is housed has been powered down to avoid any electrical hazards during the replacement process.
• Electrical Circuit Test: Open the Power Conversion Cabinet door and perform thorough tests on electrical circuits to verify that power has been completely shut off before initiating any handling.
• Check LEDs: Confirm that all LEDs are turned off to ensure no residual power or signal transmission through the board.
• Label Verification for Cables: Ensure that each cable connected to the board is appropriately labeled with the correct connector name as indicated on the board. Proper labeling simplifies the reconnection process later on.
• Carefully Disconnect Cables: With caution, disconnect all cables attached to the board, paying attention to avoid any damage to the connectors or the board itself.
• Board Removal: Gently remove the board from its mounting position, ensuring a smooth extraction without causing any disturbance to nearby components.
• Verify Replacement Board Jumpers: Prior to installation, carefully inspect the replacement card to confirm that all jumpers are correctly positioned, mirroring the configuration of the original board.
• Install Replacement Board: Carefully re-insert the replacement board into its designated mounting slot, ensuring a proper fit and alignment.
• Reconnect Cables: Reconnect all cables removed in the previous steps, ensuring they are appropriately reattached to their corresponding connectors on the replacement EGPA board. Securely tighten the connections to prevent any loose contacts.