Woodward 8237-2596 安全系統模塊
可配置的超速檢測系統
是一種可配置的超速檢測系統，旨在在感應到超速或過加速事件時安全關閉各種尺寸的蒸汽、燃氣和水輪機。提供兩個雙冗余脫扣繼電器輸出，使用三選二投票架構，或三個獨立的無投票脫扣繼電器輸出，帶有單獨的警報繼電器、4–20 mA 速度讀數和 Modbus 通信，使這款超速設備易于集成到任何渦輪機安全系統中。此 ProTech GII 型號是隔板安裝、高壓/低壓、表決繼電器、表決輸入，具有用于蒸汽輪機保護的數學函數保護裝置。
這種快速作用的超速保護裝置設計用于與渦輪機控制或跳閘系統結合使用，以在渦輪機超速事件的情況下安全關閉渦輪機。可以通過 ProTech-GII 的冗余硬接線輸入和輸出信號或通過其三重冗余串行 Modbus 通信端口執行與相關控制系統或工廠 DCS（分布式控制系統）的接口。 在線測試每個 ProTech-GII 模塊都可以從模塊的前面板、Modbus 通信端口手動測試，或通過其自動測試例程功能自動測試。ProTech-GII 允許用戶將超速測試配置為定期自動執行，一次測試每個模塊（A、B、C），并記錄每次測試的結果或暫停測試以檢測檢測到的錯誤.跳閘、警報和超速日志ProTech-GII 日志功能記錄（保存到內存）所有跳閘、警報、跳閘閥響應時間和超速事件。跳閘日志功能使用滾動緩沖區并將最近 50 次感測到的跳閘或警報事件和最近 20 次超速事件記錄到內存中，以及相關的時間。每個日志文件都可以從設備的前面板查看，或通過 ProTech-GII 服務工具程序下載到計算機。每個模塊都使用非易失性存儲器來確保保存所有記錄的事件，即使在斷電時也是如此。實時時鐘每個 ProTech-GII 模塊都使用實時時鐘來確保準確的時間記錄。模塊之間使用特殊的時間平均功能，以確保模塊間時鐘同步。
Configurable overspeed detection system
It is a configurable overspeed detection system designed to safely shut down steam, gas and water turbines of all sizes when an overspeed or over acceleration event is sensed. Two dual redundant trip relay outputs are provided, using a two out of three voting architecture, or three independent non voting trip relay outputs, with separate alarm relays, 4 – 20 mA speed readings, and Modbus communications, making this overspeed device easy to integrate into any turbine safety system. This ProTech GII model is a bulkhead mounted, high/low pressure, voting relay, voting input with a mathematical function protection device for steam turbine protection.
This fast acting overspeed protection device is designed to be used in conjunction with the turbine control or trip system to safely shut down the turbine in the event of a turbine overspeed event. The interface with the relevant control system or plant DCS (Distributed Control System) can be implemented through redundant hardwired input and output signals of the ProTech GII or through its triple redundant serial Modbus communication port. Online testing Each ProTech GII module can be manually tested from the front panel of the module, Modbus communication port, or automatically tested through its automatic test routine function. ProTech GII allows the user to configure overspeed tests to be performed automatically at regular intervals, testing each module (A, B, C) at a time, and recording the results of each test or pausing the test to detect detected errors Trip, Alarm, and Overspeed LogThe ProTech GII Log function records (saves to memory) all trip, alarm, trip valve response times, and overspeed events. The trip log function uses a rolling buffer and records the last 50 sensed trip or alarm events and the last 20 overspeed events into memory, along with the associated time. Each log file can be viewed from the front panel of the device or downloaded to the computer through the ProTech GII service utility. Each module uses non-volatile memory to ensure that all logged events are stored, even when power is lost. Real Time Clock Each ProTech GII module uses a real time clock to ensure accurate time recording. Special time averaging function is used between modules to ensure clock synchronization between modules.
