Submersible pump how to configure the appropriate cable, small today to give you a detailed explanation:

The submersible sewage pump is usually not equipped with a cable when it leaves the factory, or no more than five meters of cable, so we are likely to meet the need to add a longer cable in the actual use process, so how to choose and match the cable is more important at this time.

According to GB/T 2816 "submersible water pump for well" standard provisions, in the water temperature is 25℃, the current is rated value, the voltage amplitude of the cable should not be greater than 5% of the rated voltage.

The specification of power cable for the submersible pump is determined by two factors: heating and voltage drop of the cable. In addition to the control of a certain current density to limit the temperature rise of the cable, the longer the length of the cable, the greater the voltage drop of the cable, the greater the impact on the motor's starting performance, operating performance and service reliability. Therefore, for the same well with submersible pump motor, when equipped with submersible pump head is different, when equipped with different cable length, the requirements of the cable section is not the same.

According to the standard of submersible pump for well use, when the power supply voltage is 380V, the maximum allowable length of different power submersible pump motors equipped with cables of certain specifications. When the voltage of power supply is higher and more stable or relatively large power transformer capacity, voltage and higher, more stable, the Wells with submersible pump motor is equipped with the same specification of cable to allow visual its specific situation put appropriate length (or affixed by the cable is reduced, in order to reduce the cost of cable configuration), the submersible pump motor is installed with the maximum allowable length of cable has a regulation.

When submersible pump head high, motor under the well is deep, along the cable length is longer, the transformer power supply quality is poor, the motor start difficult: starting current is very big, long the pressure drop of the cable is large, lower the voltage of the motor, starting current increasing, the pressure drop of the cable is bigger, lower starting torque, create a vicious cycle, motor start is difficult, not only forced to start may cause damage to the motor winding. Therefore, each submersible pump must be equipped with cables as required.

When wiring, first according to the length of the cable to determine the size of the wiring, such as the original pump configuration cable is 10 square cable needs to be equipped with 50 meters at this time should increase the cable configuration 16 square appropriate.

If the use of submersible sewage pump itself power supply voltage is slightly lower than the voltage required sewage pump, and add the required length of cable configuration and longer, the pump running cable will become bigger, if long time work of sewage pump pump motor is very bad, this kind of sewage pump under the condition of cable wiring should match YCW type or YC type rubber set soft cable, such as not submerge cable advice to choose YCW type.

Cangzhou xinfai cable co., LTD. To the submersible pump to make the details of the analysis everyone understand?