1. Voltage anomaly does not boot :
Voltage too high and too low will make the submersible pump temperature rise too high, shorten the service life and even burn submersible pump. Because the low voltage power supply line is long, the terminal voltage of the line is too low, and the beginning of the line is too high. Therefore, in the use of the submersible pump in the process, the operator must always observe the power supply voltage value, if less than 10% of rated voltage below, higher than the more than 10% of rated voltage or current greater than 20% of the rated current of the submersible pump, should immediately stop machine overhaul.
2. Should not be frequent start :
Submersible pump should not be too frequent starting. This is because the submersible pump to stop rotating return will produce, if an immediate start, will start the motor load, resulting in excessive starting current and pipe winding burn to save water after reflux, to start, generally between 5 minutes.
3. Pay attention to the change of water level :
When the submersible pump in the pumping process, should pay attention to the water level dropped, especially pumping wells, must pay attention to not let the exposed surface of the submersible pump, but does not allow the dehydration operation for a long time. Otherwise, the heating of the motor, burned in the stator winding.
4. Found abnormal immediately shut down :
Submersible pump, should be someone on duty found work current suddenly a submersible pump rated current; water is not normal, interstitial water; increase the amount of water sediment; obvious noise vibration intensified; damage to water supply pipeline; burn out a fuse a phase; power grid voltage is too low; electric submersible pump does not turn; after starting water can not wait a moment to immediately stop check.
5. To disable the submersible pump to regular boot rust :
Submersible pump, if not used for a long time, a long time, will be corroded, resulting in can not be started. Therefore, should be once a week, and run 5~10 minutes, in order to rust.
