▲產(chǎn)品技術(shù)參數(shù)說明：9907-147 WOODWARD 超速防護(hù)模型監(jiān)控
產(chǎn)品說明
9907-147型使用磁性拾音器來監(jiān)控底火速度超速條件。該系列設(shè)備易受電磁干擾、振動(dòng)、潮濕和工作溫度范圍-25至+60C(-13至+140'F)之外的溫度的影響。ProTech超速防護(hù)模型應(yīng)安裝在通風(fēng)良好、有維修空間、遠(yuǎn)離陽光直射、遠(yuǎn)離高電流或高電壓設(shè)備的位置。
這(加在動(dòng)詞之前)表示“否定”，“相反”;(加在名詞之前構(gòu)成動(dòng)詞)表示“除去”，“除掉”-通電跳閘系統(tǒng)具有100 Hz至32 kHz的速度感應(yīng)頻率范圍和0.05% x跳閘點(diǎn)(Hz +2Hz)的精度等級(jí)。超速檢測功能由三個(gè)獨(dú)立的速度感應(yīng)單元執(zhí)行，它們獨(dú)立地監(jiān)控速度并進(jìn)行速度計(jì)算。三臺(tái)機(jī)組采用三選二投票配置，因此只有在以下情況下才會(huì)發(fā)生原動(dòng)機(jī)跳閘繼電器超速由至少兩個(gè)單元檢測狀況。
的跳變點(diǎn)頻率范圍ProTech超速保護(hù)模式9907-147是250赫茲到25千赫。使用操作員界面為每個(gè)裝置單獨(dú)編程設(shè)定跳閘設(shè)定點(diǎn)(為了精確輸出，必須對它們進(jìn)行相同的編程)。每個(gè)速度感應(yīng)單元都有一個(gè)接口。每個(gè)都有:
兩行16字符液晶顯示器
觸摸屏設(shè)備
電位計(jì)LED指示燈報(bào)警輸出
編程和測試功能被鎖定，以防止未經(jīng)授權(quán)的更改。在監(jiān)控模式和程序模式之間切換的一個(gè)按鍵開關(guān)連接到所有三個(gè)單元。
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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