9907-082 超速脱扣装置 WOODWARD
【产品详情】
ProTech 203超速保护系统电子超速脱扣装置,用于读取和中继三个单独的磁性拾音器。型号 9907-082
磁性拾音器(MPU)持续监控伍德沃德超速保护装置中的原动机速度。每 5 毫秒对速度进行一次采样,执行三次单独的速度计算,随后进行三分之二的投票。如果此硬件投票的结果检测到超速情况,则会激活跳闸继电器。总体而言,此过程的总响应时间最长为 40 毫秒。
9907-082 型是 220 V 交流系统。该型号中的三个速度感应单元中的每一个都有自己的 220 Vac 电源(180-264 Vac,7.25 W 电压范围)。由于这是一种通电跳闸模型,因此断电不会自动导致原动机跳闸。伍德沃德ProTech手册85203包含此型号的其他安全信息。
允许三分之二投票者中继配置的相同模块化设计也支持其他几个功能。超速保护型号 9907-082 具有内置频率发生器,允许操作员在不使原动机脱机的情况下测试单个单元。同样,可以在设备运行时更换设备。
ProTech 203 型号 9907-082 的其他值得注意的功能包括:
远程复位
NEMA 4X 认证外壳(使用可选不锈钢轮毂时)
用于访问设备编程的钥匙锁
用于 MPU 或 CPU 故障事件的 LED 指示灯
LED 和报警输出,用于指示跳闸的速度感应单元
9907-082 超速脱扣装置 WOODWARD
【英文介绍】
The ProTech 203 Overspeed Protection system electronic overspeed trip device is used to read and relay three separate magnetic pickups. Model number 9907-082
A magnetic pickup (MPU) continuously monitors the prime mover speed in Woodward Overspeed protection. The speed is sampled every 5 milliseconds, three separate speed calculations are performed, followed by a two-thirds vote. If the results of this hardware poll detect overspeed, the trip relay is activated. Overall, the total response time for this process is up to 40 milliseconds.
The Type 9907-082 is a 220 V AC system. Each of the three speed sensing units in this model has its own 220 Vac power supply (180-264 Vac, 7.25 W voltage range). Since this is a power-on trip model, power-off does not automatically cause prime mover trip. The Woodward ProTech manual 85203 contains additional safety information for this model.
The same modular design that allows a two-thirds voter relay configuration also supports several other features. The overspeed protection model 9907-082 has a built-in frequency generator that allows the operator to test individual units without taking the prime mover offline. Similarly, the device can be replaced while it is running.
Other notable features of ProTech 203 Model 9907-082 include:
Remote reset
NEMA 4X Certified housing (when using optional stainless steel wheels)
Key lock for accessing device programming
LED indicator for MPU or CPU failure events
LED and alarm output for indicating trip speed sensing unit
9907-082 超速脱扣装置 WOODWARD
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