配備增強(qiáng)型面板，通用電氣Multilin的469-P5-LO-A20-E是一種電機(jī)保護(hù)繼電器，專為大中型電機(jī)設(shè)計(jì)。繼電器本身由DEMO金屬手提箱保護(hù)，具有耐腐蝕、防塵、耐高溫等特點(diǎn)。發(fā)貨時(shí)，繼電器包裝寬度為12英寸，高度為11英寸，深度為10英寸。此外，這個(gè)包裹的重量約為17磅。

該裝置通過其保護(hù)機(jī)制延長(zhǎng)了電機(jī)壽命，減少了系統(tǒng)停機(jī)時(shí)間。這些保護(hù)功能包括:

過扭矩保護(hù):當(dāng)扭矩超過用戶設(shè)置的閾值時(shí)，469-P5-LO-A20-E可以監(jiān)控，并保護(hù)驅(qū)動(dòng)負(fù)載免受損壞。

RTD保護(hù):469的12個(gè)RTD輸入是高度可編程的，可以提醒用戶危險(xiǎn)的環(huán)境溫度變化。當(dāng)值達(dá)到用戶設(shè)置的閾值時(shí)，可以分配報(bào)警，跳閘和高報(bào)警功能。

接地故障保護(hù):接地電流檢測(cè)功能通過從危險(xiǎn)電流中移除直流組件來保護(hù)電機(jī)免受相接地故障的影響，以保護(hù)設(shè)備。

除其他保護(hù)功能外，這些功能減少了系統(tǒng)停機(jī)時(shí)間并延長(zhǎng)了電機(jī)壽命。

469具有模擬功能，允許它測(cè)試?yán)^電器的有效性，并評(píng)估它如何與當(dāng)前設(shè)定值設(shè)置一起工作。數(shù)值模擬輸入;故障條件和預(yù)跳閘條件也可以模擬。

469-P5-LO-A20-E

Equipped with an enhanced faceplate, General Electric Multilin’s 469-P5-LO-A20-E is a Motor Protection Relay designed for motors of medium to large size. The relay itself is protected by the DEMO metal carry case, which provides resistance to corrosion, dust, and high temperatures. When shipped, the relay packaging has a width of 12 inches, height of 11 inches, and depth of 10 inches. Furthermore, the package has a weight of approximately seventeen pounds.

This unit extends motor life and reduces system downtime through its protective mechanisms. A few of these protective features include:

Overtorque Protection: The 469-P5-LO-A20-E can monitor when torque exceeds the user-set threshold and safeguards the driven load from damage.

RTD Protection: The 469’s twelve RTD inputs are highly programmable and can alert users to hazardous ambient temperature changes. Alarm, trip, and high alarm functions can be assigned when values reach a user-set threshold.

Ground Fault Protection: The ground current detection feature protects motors against phase to ground faults by removing the DC component from the hazardous current to safeguard equipment.

Amongst other protective features, these abilities reduce system downtime and prolong motor life.

The 469 has a simulation function that allows it to test the effectiveness of the relay and to assess how it works with the current setpoint setup. Values are simulated for inputs; fault conditions and pre-trip conditions can be simulated as well.

469-P5-LO-A20-E