9907-081 超速保护系统 提供单独的电源

【产品详情】

伍德沃德的 9907-081 型显示每个测速探头的实际速度，显示最高速度信号，以及采用模块化设计的在线测试

部件 9907-081 是采用模块化设计的超速保护系统。伍德沃德ProTech 203系统的主要功能包括：

NEMA 4X 认证外壳 – 外壳可选不锈钢轮毂。这些必须用于获得NEMA 4X认证

用于访问编程的按键开关 – 连接到所有三个速度感应单元的单个按键开关控制程序模式和监控模式之间的切换

热更换 – 可以在系统运行时更换（或测试）单个速度感应单元

三分之二投票配置 – 速度感应单元投票继电器依靠三个单元中的两个检测超速情况来跳闸系统并关闭涡轮机。一个跳闸的装置不会中断操作。

远程复位 – 此功能允许从远程位置重置设备。在跳闸后和启动涡轮机之前，需要重置机组

六个 LED 指示灯 – 每个投票器继电器一个 LED。当相应的继电器跳闸时，LED 亮起。

9907-081 型为速度感应单元提供单独的电源。此 ProTech 203 型号中的所有三个单元均为 120 Vac/dc 电压输入，电压范围为 88-132 Vac/90-150 Vdc，7.25 瓦。

伍德沃德ProTech 203系列的超速保护系统对振动和电磁干扰敏感，应安装在不受高压和高电流设备影响的地方。还必须采取预防措施，以保护这种通电跳闸系统免受阳光直射和湿气的影响。伍德沃德手册 85203 详细介绍了位置要求以及其他产品规格。

9907-081 超速保护系统 提供单独的电源

【英文介绍】

Woodward's Model 9907-081 displays the actual speed of each speed probe, displays the maximum speed signal, and uses a modular design for online testing

Part 9907-081 is an overspeed protection system with a modular design. The key features of the Woodward ProTech 203 system include:

NEMA 4X Certified Housing - Housing with optional stainless steel wheels. These must be used to obtain NEMA 4X certification

Key switch for access programming - A single key switch connected to all three speed sensing units controls switching between program mode and monitor mode

Hot change - Individual speed sensing units can be replaced (or tested) while the system is running

Two-thirds Voting Configuration - The speed sensing unit voting relay relies on two of the three units to detect overspeed to trip the system and shut down the turbine. A tripping device does not interrupt operation.

Remote Reset - This feature allows the device to be reset from a remote location. After tripping and before starting the turbine, the unit needs to be reset

Six LED indicators - one LED per voter relay. When the corresponding relay trips, the LED lights up.

Model 99007-081 provides a separate power supply for the speed sensing unit. All three units in this ProTech 203 model have 120 Vac/dc voltage inputs in a voltage range of 88-132 Vac/90-150 Vdc, 7.25 watts.

The Woodward ProTech 203 series overspeed protection system is sensitive to vibration and electromagnetic interference and should be installed in an area that is not affected by high voltage and high current equipment. Precautions must also be taken to protect this powered trip system from direct sunlight and moisture. Woodward Manual 85203 details the location requirements as well as other product specifications.

9907-081 超速保护系统 提供单独的电源

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