▲产品技术参数说明：9907-147 WOODWARD  超速防护模型监控

产品说明

9907-147型使用磁性拾音器来监控底火速度超速条件。该系列设备易受电磁干扰、振动、潮湿和工作温度范围-25至+60C(-13至+140'F)之外的温度的影响。ProTech超速防护模型应安装在通风良好、有维修空间、远离阳光直射、远离高电流或高电压设备的位置。

这(加在动词之前)表示“否定”，“相反”;(加在名词之前构成动词)表示“除去”，“除掉”-通电跳闸系统具有100 Hz至32 kHz的速度感应频率范围和0.05% x跳闸点(Hz +2Hz)的精度等级。超速检测功能由三个独立的速度感应单元执行，它们独立地监控速度并进行速度计算。三台机组采用三选二投票配置，因此只有在以下情况下才会发生原动机跳闸继电器超速由至少两个单元检测状况。

的跳变点频率范围ProTech超速保护模式9907-147是250赫兹到25千赫。使用操作员界面为每个装置单独编程设定跳闸设定点(为了精确输出，必须对它们进行相同的编程)。每个速度感应单元都有一个接口。每个都有:

两行16字符液晶显示器

触摸屏设备

电位计LED指示灯报警输出

编程和测试功能被锁定，以防止未经授权的更改。在监控模式和程序模式之间切换的一个按键开关连接到所有三个单元。

Product description

The Type 9907-147 uses magnetic pickups to monitor primer speed overspeed conditions. This family of devices is susceptible to electromagnetic interference, vibration, moisture, and temperatures outside the operating temperature range of -25 to +60C(-13 to +140'F). The ProTech overspeed protection model should be installed in a place with good ventilation and maintenance space, away from direct sunlight, and away from high-current or high-voltage devices.

This (added before the verb) means "negative", "contrary"; (added to form a verb before a noun) means "to remove", "to remove" - The powered trip system has a speed sensing frequency range of 100 Hz to 32 kHz and an accuracy class of 0.05% x trip point (Hz +2Hz). The overspeed detection function is performed by three independent speed sensing units that independently monitor speed and perform speed calculations. The three units are in a two-out-of-three voting configuration, so prime mover trip relay overspeed can only occur if the condition is detected by at least two units.

The jump point frequency range ProTech overspeed protection mode 9907-147 is 250 Hz to 25 KHZ. Use the operator interface to program trip setpoints individually for each device (they must be programmed equally for accurate output). Each speed sensing unit has an interface. Each has:

Two-line 16-character LCD display

Touch screen device

Potentiometer LED indicator alarm output

Programming and testing functions are locked to prevent unauthorized changes. A key switch that switches between monitor mode and program mode is connected to all three units.

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