關(guān)于469-P5-LO-A20-E的常見問題

通用電氣公司電機(jī)管理繼電器469-P5-LO-A20-E上的短路跳閘應(yīng)該設(shè)置在什么位置？

在GE 469-P5-LO-A20-E繼電器上設(shè)置短路脫扣必須高于最大鎖定轉(zhuǎn)子電流，但也低于繼電器上保險(xiǎn)絲的實(shí)際短路電流。最大堵轉(zhuǎn)電流為630%滿載電流或6.3倍滿載電流。請記住，如果鎖定轉(zhuǎn)子電流設(shè)置為7倍滿載電流，將會有一個(gè)時(shí)間延遲，這將導(dǎo)致跳閘，并可能有不對稱的啟動電流和直流偏置。如果7倍滿載電流的設(shè)置限制了啟動能力，則將S/C設(shè)置為11倍滿載電流的更高水平(1.7 x 6.3 = 11.7)以超越該條件。

GE 469-P5-LO-A20-E電機(jī)繼電器上是否有接地故障或錯(cuò)誤？

沒有接地故障設(shè)置的報(bào)警信息，因此不幸的是，接地故障電流不可用。故障電流應(yīng)假設(shè)為10安培或10/50 = 0.2倍電流互感器，并且沒有時(shí)間延遲。

什么是阿格電機(jī)管理繼電器的不平衡報(bào)警或跳閘？

不平衡警報(bào)或跳閘處于由電機(jī)應(yīng)用和設(shè)計(jì)檢查決定的設(shè)置中。不平衡報(bào)警設(shè)置為10 %,延遲10秒，有助于報(bào)警，跳閘設(shè)置為25 %,延遲5秒，有助于跳閘。2193840P0001 - GE POWER PLANT - Cable, 8th Stage Bleed Valve

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