YZ系列油位e.doc

1　概述 General 产品主要用途 Main Application YZ系列指针式油位计用于油浸式变压器储油柜和有载分接开关储油柜的油面显示以及最低和最高极限油位的报警。也可用于各种敞开式或内压不大的压力容器液位的显示和报警。 The oil-level indicator type YZ is suitable and applicable for conservator and separate conservator for on-load tap-changer of transformers. These indicators are equipped with the highest and lowest oil-level alarm signaling device for remote monitoring of the variation of oil-level in the conservator. This type of oil-level indicator is also applicable for oil-level indication alarm for all kinds of open liquid container or close liquid container with low inner pressure. 油位计型号的组成及其意义 Instruction of model YZ □ □-□ 盘面直径mm Diameter of Dial 设计序号 Design No. ┌F-浮子型Float-ball type 结构形式 Type of constructer ─┤ 油位计 oil-level indicator └S-伸缩杆型 Extension-pole type 使用条件 Operation Conditions 允许工作环境温度：-30～+95℃。Permissible operating temperature of YZ: 周围无剧烈震动和颠簸的场所。No acutely shaking and bumping around 工作原理 Working Principle 当变压器的储油柜的油面升高或下降时，油位计的浮球或储油柜内的隔膜随之上下浮动，使油位计的摆杆产生运动，从而带动传动部分转动，通过耦合磁钢使报警部分的磁铁（或凸轮）和显示部分的指针旋转，指针指示相应的位置，当油位上升到最高油位或下降到最低油位时，磁铁吸合（或凸轮拨动）相应的干簧接点开关（或微动开关）发出报警信号。 When the oil level moves up and down due to the variation of temperature, the float ball of oil-level indicator or the diaphragm moves up and down along with. It makes the connecting rod of the oil-level indicator move and drives the connecting part turned, drives the alarm magnet and pointer through the magnetic coupling to indicate the oil level. When the oil level reaches the Max or Min limit, the magnet magnetize the relative contact switch (or Microswitch) and send alarm signal. 主要规格及技术参数 Main type and technical data YZ系列油位计产品的主要品种、规格及技术参数见表1 Oil levelof YJ specificationsand technicalparameters ofthe main varieties table 1 表Table 1 序号 Item No. 型号 Type 盘面直径 mm Diameter of dial 指针转角 Pointer angle 最低油位时摆杆位置 Position of connecting rod at lowest oil level 摆杆旋转角 Angle of connecting rod 1 YZF2-140 140 120° 下倾60°Decline 60°