水泵压力开关powerfailure亮红灯

有两种情况

1、如果是变频器控制，说明变频器检测到故障，详细的故障需要查看变频器代码。

2、如果是接触器控制，故障灯亮是因为保护电机的热继器跳掉了，在排除电机的过载问题后，按热继电器的复位按钮复位。

水泵具有不同的用途，不同的输送液体介质，不同的流量、扬程的范围，因此，它的结构形式当然也不一样，材料也不同，概括起来，大致可以分为：

1 、城市供水 2 、污水系统 3 、土木、建筑系统 4 、农业水利系统 5 、电站系统

6 、化工系统 7 、石油工业系统 8 、矿山冶金系统 9 、轻工业系统 10 、船舶系统。

从你阐述来看，最大可能是 水泵过载了 热继电器动作后出现的 故障报警。

建议你先检查水泵，盘车看有没卡阻现象，排出外部故障后，打开控制柜 按下 热继电器上的复位按钮。

可以启动之后，要检测运行电流，若运行电流偏大，应适当关小水泵出水阀门，调节电流到电机额定电流以下。

【 abstract 】 this topic at with technical transformation of the way to resolve the post office self-suction pump is because of installation reason, water pump mechanical and electrical design defects and problems that can't satisfy the production operation needs, can't achieve or fast to working condition, can't achieve self-priming pumps "a drainage", "lifelong self-priming" automatic operation, high failure rate run unstable and so on many kinds of problems for improvement.

Strive to this topic (or technical transformation) realize self-suction pump basis without manual intervention process conditions, fully automatic operation, and found out the high failure self-suction pump, frequent source and correct, and the relevant materials in light of their own conditions for mechanical and electrical equipment selection and experience requirements made some of their own views.

Installed in the pool page 4 meters high above the continuous drainage without seal self-suction pump, the test and operation system more than 1 year since, equipment operation always exists:

1, every time all need someone to start in irrigation equipment, equipment start can't writes.

After repeated testing and analysis the equipment is found not to stop after the operation, equipment in the body cavity standing back to sink, in rapid backflow, again started in the body cavity water shortage, need to infuse water, after a full study of the high point of water pipeline will add electric air control valves realize when the pump is going to stop vacuum damage, further will pump water pipe and connection position up 100 mm height. Problems are resolved.

2, equipment of water booster too slow, equipment after the launch of steadily in irrigation cases, basic need 1 hour to be effective water pressure slow rise to basic conditions.

After continuous commissioning and analysis found that equipment bibulous pipeline pipe diameter is too large, equipment design can't satisfy the vacuum suction ability, will suction pipe by DN200 DN100 instead, problem solving.

3, insufficient capacity (one of the machine), can't satisfy the needs of the flow of head and.

After the careful testing found that pump is sounding laying cable diameter deficit, change after cable problems can be solved.

4, equipment failure too high, frequent the problem of maintenance.

【 key words 】 self-suction pumpVacuum destruction

1.可能是油泵有问题，需要校油

2.可能是活塞环受热膨胀，换新活塞环可以解决:

3.可能是燃油泵内泄，需要用接表测量燃油压力:

4.可能是发动机四配套存在缺陷，间隙过大:

5.可能是马达转动受阻或连接线太细。