济南施耐德高压断路器液压机构故障处理办法
2015-04-21 12:23:58
高压断路器液压机构故障，主要发生在每年7～8月份气温较高的夏季。胜利油田变电站高压断路器配用的液压机构有CY5，CY3，CYA几种型号，以CY5型为例常见故障有：油泵频繁启动，压力异常高，压力异常低，油泵打压时间长或打不上压，拒动或拒合。
The fault of hydraulic operating mechanism for high voltage circuit breaker, mainly occurred in the year 7 ~ August high temperature in summer. Hydraulic mechanism of Shengli Oilfield substation high voltage breaker CY5, CY3, CYA several models, with the example of CY5 are common faults frequent start pump, pressure anomaly high abnormal pressure is low, oil pumping time long or not hit on the pressure, not to move or closing.
1.油泵打压时间长或打不上压
1 oil pumping time long or not hit on the pressure
油泵从零压起至微动开关(1W)断开止，3min以内为合格，超过3min为打压时间长。检查济南施耐德 http://www.sdflauto.com/ 油泵逆止阀或高压出口逆止阀密封、油泵柱塞密封垫是否不严；油泵内部是否存有空气；油泵柱塞间隙是否过大；油泵内螺栓是否松动。油泵打不上压现象是油泵一直运转而压力停在某一值不上升，可能是高压放油阀未关闭，低压进油管路堵塞，油泵内存在气体，油泵逆止阀密封不严，密封垫或胶垫损坏。打压接触器因老化造成主触头接触不良，打压回路不能导通。可用CJ一40代替CZO一40。更换后的打压接触器性能优良，提高了防尘、防雨性能，运行至今无故障发生。微动开关采用密封式，损坏后应加更换，更换时应检查其触点是否良好、外壳绝缘应符合标准、顶子无卡涩现象。
The pump pressure from zero to the micro switch (1W) disconnect only, within 3min for qualified, more than 3min long time. Check the Ji'nan Schneider pump non-return valve or pressure outlet check valve seal, pump plunger seal is not strict; the internal pump whether the air pump plunger; clearance is too large; the bolts are loose in the oil pump. The pump pressure is not hit on the phenomenon of pump operation and pressure pause in a value does not rise, may be the high pressure oil drain valve is not closed, low pressure oil inlet pipeline plugging, pump memory in gas, oil pump non-return valve Mifengbuyan, sealing pad or pad damage. To suppress the contactor main contact because of aging caused by poor contact, to suppress the circuit conduction can not be. Available CJ a 40 instead of a 40 CZO. To suppress the contactor performance after the replacement of fine, improve the dustproof and rainproof performance, operation has no fault. The micro switch adopts a sealing, damage should be added after the replacement, the replacement should check the contact is good, the shell insulation shall comply with the standards, Dingzi without blocking phenomenon.
2.拒动或拒合
2 not to move or closing
主要原因是分、合闸线圈断线或线圈接头接触不良；分合闸电磁铁阀杆卡涩、变形、弯曲；分合闸阀杆过短；操作回路或者辅助开关不良，造成分合闸回路不良。用万用表检查分合闸线圈电阻、回路或辅助开关接触情况，分合闸阀杆过短应进行调整；合闸一级阀逆止钢球的球托位置应放正。
The main reason is divided, the closing coil disconnection or coil connection is bad; branch closing electromagnet valve stem jam, deformation, bending; opening and closing the valve stem is too short; operation circuit or auxiliary switch caused by bad, bad points closing circuit. Using a multimeter to check branch closing coil resistance and a loop or auxiliary switch contact, opening and closing the valve stem is too short should be adjusted; the closing level check ball valve ball supporting position should be put it.
3.液压油不清洁
3 hydraulic oil is not clean
液压油不清洁引起的故障占60%左右，采取的措施为：用合格的液压油对高、低压管路进行清洗；对拆除的零部件均用液压油清洗，以去掉杂质；用和好的面团擦拭机构箱；用细绸布滤去液压油中的铁屑等杂质。
Hydraulic oil is not clean caused by failure accounted for about 60%, to take measures to: cleaning of the high and low pressure pipe by a qualified hydraulic oil; for the demolition of the components are made of hydraulic oil cleaning, to remove impurities; the wiping mechanism box with the ball of dough; impurity with fine silken cloth to filter hydraulic oil iron etc..
