8237-1597 超速检测系统

8237 - 1597

PROTECH-GII

Hv / Hv, vr, vi

8237 - 1597protect - 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

加速度检测

可选的protect - gii也可以配置为保护涡轮机免受高加速度事件的影响。速度信号的导数用于检测涡轮加速度并发出相关的行程命令。

微控制器检测

每个模块的速度传感器输入使用特殊的MPU开线检测电路，以验证MPU在涡轮机运行前是否正确连接，以及特殊的失速检测逻辑，以验证涡轮机运行期间MPU的功能。

自动超速测试程序

8237 - 1597 ProTech-GII可选择配置为对每个模块例行执行超速测试，然后记录和报告测试结果。有了这个测试例程，每个模块使用一个内部频率发生器来模拟超速情况，通过它的测试序列。

抗硫污染

8237 - 1597 protect - gii采用一种特殊的保形涂层材料，在国际标准IEC 721-3-3 1994 -环境等级3C2中，对H2S和SO2气体具有出色的长期保护作用。

在线修复

8237 - 1597 protect - gii的三模块设计允许用户在涡轮机在线和正常运行时轻松更换其中一个模块(A, B, C)。该装置的背板即插即用结构以及模块对模块的学习功能增强了更换的便利性。

8237-1597 超速检测系统

8237-1597

PROTECH-GII

Hv / Hv, vr, vi

The 8237-1597protect-gii is a configurable speed detection system designed to safely shut down steam, natural gas and water turbines of all sizes when an overspeed or overspeed event is detected. Available in two dual redundant tripping relay outputs using 2-out3

Acceleration detection

The optional Protect-GII can also be configured to protect the turbine from high acceleration events. The derivative of the speed signal is used to detect turbine acceleration and issue the associated stroke command.

Microcontroller inspection

The speed sensor input in each module uses a special MPU on-wire detection circuit to verify that the MPU is properly connected before the turbine is in operation, and a special stall detection logic to verify the MPU's function during turbine operation.

Automatic overspeed test program

The 8237-1597 ProTech-GII can optionally be configured to routinely perform overspeed tests on each module and then record and report the test results. With this test routine, each module uses an internal frequency generator to simulate the overspeed situation through its test sequence.

Resistance to sulfur pollution

8237-1597 protect-gii uses a special conformal coating material that provides excellent long-term protection against H2S and SO2 gases in the international standard IEC 721-3-3 1994 - environmental class 3C2.

Online repair

The three-module design of the 8237-1597 protect-gii allows users to easily replace one of the modules (A, B, C) when the turbine is online and in normal operation. The plug and play structure of the backplane and the module-to-module learning function of the unit enhance the convenience of replacement.