8237-2596 可配置的超速检测系统

Description

8237-2596 可配置的超速检测系统

protect – gii是一种可配置的超速检测系统，用于在检测到超速或超速事件时安全关闭各种尺寸的蒸汽、天然气和水轮机。可在两个双冗余跳闸继电器输出使用2-out- 3。

这种快速作用超速保护装置被设计用于与涡轮机控制或行程系统一起应用，以在涡轮机超速事件的情况下安全关闭涡轮机。与相关控制系统或工厂DCS(分布式控制系统)的接口可以通过protect – gii的冗余硬连线输入和输出信号或通过其三冗余串行Modbus通信端口执行。

联机测试
每个protect – gii模块可以从模块的前面板、Modbus通信端口手动测试，也可以通过其自动测试例程功能自动测试。protect – gii允许用户配置定期自动执行超速测试，一次测试每个模块(a、B、C)，并记录每次测试的结果或停止检测到的错误的测试。

跳闸，报警，超速日志
protect – gii日志功能记录(保存到内存中)所有跳闸、告警、跳闸阀响应时间和超速事件。行程日志功能使用滚动缓冲区，并记录最近50次检测到的行程或报警事件以及最近20次超速事件到内存，并附有相关时间。每个日志文件都可以从设备的前面板查看，或者通过protect – gii服务工具程序下载到计算机上。每个模块使用非易失性存储器来确保所有记录的事件都被保存，即使在断电时也是如此。

实时时钟
每个protect – gii模块采用实时时钟，以确保准确的时间记录。在模块之间使用了特殊的时间平均功能，以确保模块间的时钟同步。

8237-2596

8237-2596 可配置的超速检测系统

The ProTech-GII is a configurable overspeed detection system designed to safely shut down steam, gas, and hydro turbines of all sizes upon sensing an overspeed or overacceleration event. Available in two dual redundant trip relay outputs using a 2-out-of-3.

This fast acting overspeed protection device is designed to be applied in conjunction with a turbine control or trip system to safely shut down the turbine in the case of a turbine overspeed event. Interface with related control systems or plant DCS(s) (Distributed Control Systems) can be performed via the ProTech-GII’s redundant hard-wired input and output signals or through its triple-redundant serial Modbus communications ports.

On-line Testing
Each ProTech-GII module can be tested manually from the module’s front panel, Modbus communications port, or automatically via its auto-test routine function. The ProTech-GII allows users to configure an overspeed test to be performed automatically on a periodic basis, testing each module (A, B, C) one at a time, and logging the result of each test or halting the test for a sensed error.

Trip, Alarm, & Overspeed Logs
The ProTech-GII log function logs (saves to memory) all trips, alarms, trip valve response times, and overspeed events. The trip-log function uses a scrolling buffer and records the last 50 sensed trip or alarm events and the last 20 overspeed events to memory, with associated times. Each log file can be viewed from the unit’s front panel, or downloaded to a computer via the ProTech-GII service tool program. Each module utilizes non-volatile memory to ensure that all logged events are saved, even on loss of power.

Real Time Clock
Each ProTech-GII module utilizes a real-time clock to ensure accurate time logging. A special timeaveraging function is utilized between modules to to ensure module-to-module clock synchronization.