油流繼電器（流量指示器）是顯示變壓器強迫油循環(huán)冷卻系統(tǒng)內(nèi)油流量變化的裝置。用來監(jiān)視強油循環(huán)冷卻系統(tǒng)的油泵運行情況，如油泵轉(zhuǎn)向是否正確，閥門是否開啟，管路是否有堵塞等情況，當(dāng)油流量達到動作油流量或減少到返回油流量時均能發(fā)出報警信號。 系列產(chǎn)品型號：BLZ(YJ)-50/80/100/125/150。 【Application The oil flow indicator is a kind of device used for indicating the quantity of Oil flow in the transformer cooling system with forced oil circulation and supervising the operation situation of oil pump of cooling system with forced oil circulation, such as whether the rotation direction of oil pump is correct, the valve is opened, the conduit is blocked, etc .The indicator can initiate the alarming signal when the quantity of oil flow increases to the action oil flow quantity or decreases to the return oil flow quantity. TYPE:YJ-50/80/100/125/150】