Deep well submersible pump installation considerations

1, deep well submersible pump before installation should check whether the power supply voltage meet standards set using the deep well pump diameter, depth of the Wells and water Wells whether conforms to the selection of conditions of use of the product, whether the water quality belongs to the water, if the water quality is poorer contain particles and other debris can't be used. 2, the diameter of the deep well to slightly big and deep well submersible pump units of outside diameter, whether the actual depth is also measured before installation to Wells in accordance with the installation conditions of the deep well pump. 3, check whether Wells for manhole covers installation, withstand the deep well pump units and supporting the weight of the outlet pipe. 4, check the deep well water pump unit assembly are in good condition, before installation or remove the mesh of deep well pump, check the pump shaft rotation condition of deep well pump, such as the card is the death of the phenomenon is prohibited to use. 5, the multimeter to check deep well pump phase conductor is conduction, dc resistance is approximate balance. 6, good protection switch and control cabinet equipment, a high power to choose soft step-down controller, then to pump the water from the outlet of the deep well water pump, lubrication pump inside the rubber bearing and skeleton oil seal, the instantaneous start ( No more than 1 second! ) Whether to agree with to panels indicate, such as opposite three-phase power cord can be arbitrary two root adjustment, good filter water network can be well. 7, rubber pad to pad is installed conduit, uniform and screw down the bolt of the water pipe. 8, installation, delivery should be in each section on the cable with plastic tape or its water resistant rope and piping in mind, but don't make the cable pull too tight. 9, good deep well pump installation, inspect the insulation resistance in turn from the switch and three leads are interlinked, then check instrument and starting equipment, and close the gate valve ( Leave a little space on) Close the switch, starter motor, slowly open the gate, adjust to the ammeter indication of 90 - rated current value 100% so far. Observation instrument indicates whether more than nameplate, check the power supply and operating conditions. 10, deep well submersible pump for the first time after running four small, stop quickly measuring thermal insulation resistance, when no less than 0. 5 when megohm to continue functioning. After 11, stop the pump should be starting again after ten minutes interval, shall not be frequent starting, in order to avoid damage to the motor and pump parts. 12, in use, should be check regularly, found the following phenomenon should immediately stop, troubleshooting again after operation. ( 1) Current increases to 120% of the rated current; ( 2) The pump clearance of the water; ( 3) Water pump with violent vibration and noise; ( 4) The voltage is not in conformity with the requirements; ( 5) Fuse, two phase running; ( 6) Pipe, valve found damage; ( 7) Motor insulation resistance for geothermal condition is lower than 0. 5 ohms.
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