How to install deep well submersible pump

Deep well Submersible pump installation method

A: pump installation steps down the well

1 Shipping:

Be careful when loading and unloading to avoid damaging the unit or breaking the cable insulation.

2 To test the unit, proceed as follows:

A. Open the filter, with the crowbar should be flexible rotation coupling;

B. (10-15 minutes) whether the phenomenon of water leakage, if the leakage, please contact the agent or in a timely manner, please contact the agent or water leakage, Manufacturer, until after the installation of the filter. And then shake the table to measure the insulation resistance of the motor, the resistance should not be less than 50 megohm.

3 wiring test turn:

A. Connect the motor lead to the power cable (see the connection method for the submersible cable). After connecting, connect the connector to the water and check the resistance of the connector to the ground Insulation resistance) is not less than 500 megohms.

B. (The best is the detergent water) at the same time a little jog about the motor start button (time not more than 2 seconds), observe the pump turn, do a good mark continued.

4 units to go down

A. (In particular the first pump under the new wells), with a rope hanging not less than the length of the unit pipe (diameter equal to the maximum diameter of the unit) down to the depth of the pump should be no jamming phenomenon.

B. Enable the hoisting equipment to go down the well, use the insulated cable tie (strictly forbid wire) to tie the cable to the well pipe (pay attention to the cable moderate tension), the flange place the cable into the cable groove to prevent the cable from fraying. When going down the table with the constant watch cable insulation resistance to observe the changes (to prevent the shaft wall frayed cable). If it is found that the insulation value decreases rapidly (less than 0.5 megohms), the unit is brought up to check the cause. After the completion of downhole can be debugged.

5 Debugging: very important, please install the electrical debugging seriously

A. Start time; according to the motor power, master in 10-20 seconds, high-power motor starting time should be longer accordingly.

B. Overload and over current debugging: After the unit starts, adjust the current adjustment button of the thermal relay slowly to less than the actual operating current, rotate a few times every time (interval 2-5 minutes) until the thermal relay operating unit stops working, Reverse the rotation can be a little scale.

C. Phase sensitivity debugging: the unit starts again, one by one off the knife switch fuse, so that the unit is working in two state, observe the thermal relay within 5 seconds to cut off the control power supply.

D. Short-circuit protection: This function is usually achieved by the power supply system, air switch, generally do not make field tests (more dangerous). Requires power supply system must be equipped with air switch (Model preferred DW10 type, followed by DZ type)

After commissioning the control cabinet can start the normal unit test run.