本裝置用于煤礦井(jing)下660V、1140V電壓(ya)的電網，用于(yu)127V、1.2KW-1.5KW手持(chi)式煤(mei)(mei)電(dian)(dian)(dian)鉆(zhan)(zhan)的(de)遠(yuan)方控制，該裝(zhuang)置是針對(dui)目前(qian)國內煤(mei)(mei)礦(kuang)井下使用的(de)煤(mei)(mei)電(dian)(dian)(dian)鉆(zhan)(zhan)綜(zong)合保護(hu)在(zai)(zai)實(shi)際運行中所存(cun)在(zai)(zai)的(de)問題而開(kai)發(fa)研(yan)制的(de)一(yi)種新型的(de)無觸(chu)點煤(mei)(mei)電(dian)(dian)(dian)鉆(zhan)(zhan)綜(zong)合保護(hu)裝(zhuang)置屬國內首創。它可(ke)以消除煤(mei)(mei)電(dian)(dian)(dian)鉆(zhan)(zhan)工(gong)作時交(jiao)流接(jie)觸(chu)器觸(chu)頭回(hui)跳(tiao)所產生的(de)機械振動、電(dian)(dian)(dian)火花、電(dian)(dian)(dian)磁干擾及反向瞬間過電(dian)(dian)(dian)壓。具有漏電(dian)(dian)(dian)、漏電(dian)(dian)(dian)閉鎖、短路、過載、斷相等(deng)多(duo)種保護(hu)功能，并可(ke)光色顯示裝(zhuang)置的(de)故障和運行狀態(tai)。煤(mei)(mei)電(dian)(dian)(dian)鉆(zhan)(zhan)不(bu)工(gong)作時。電(dian)(dian)(dian)纜(lan)不(bu)帶電(dian)(dian)(dian)。

   本裝置采用越級先導控(kong)(kong)(kong)(kong)制回(hui)路(lu)，使(shi)主變壓(ya)器在被控(kong)(kong)(kong)(kong)制設備(bei)不工作進不帶電(dian)(dian)(dian)(dian)(dian)，既節約電(dian)(dian)(dian)(dian)(dian)能，又安全(quan)可(ke)靠。主電(dian)(dian)(dian)(dian)(dian)路(lu)的(de)通(tong)電(dian)(dian)(dian)(dian)(dian)斷電(dian)(dian)(dian)(dian)(dian)采用較先進固態繼(ji)電(dian)(dian)(dian)(dian)(dian)器，實現了(le)煤電(dian)(dian)(dian)(dian)(dian)鉆開啟的(de)無觸(chu)點控(kong)(kong)(kong)(kong)制，二次控(kong)(kong)(kong)(kong)制器電(dian)(dian)(dian)(dian)(dian)路(lu)繼(ji)電(dian)(dian)(dian)(dian)(dian)器觸(chu)點為直流10V，電流(liu)5～10mA，提高了(le)小型繼電(dian)器的工作(zuo)穩定性，使整機使用壽(shou)命達到千(qian)萬次免維修(xiu)。