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Small submersible pump tips, import small submersible pump

May 30, 2022
Small submersible pump compact and lightweight, farmland irrigation and farm life water can not be separated. In order to avoid accident during use, extend the service life, to play its excellent performance, should pay attention to the following seven points when using: 1, install leakage protector leakage protector also called lifeguard, its role from the "lifeguard" three A word can understand. Because the submersible pump works underwater, it is easy to cause electric leakage due to leakage and even cause electric shock accident. If leakage protector is installed, the leakage protector will cut off the power of the submersible pump as long as the leakage value of the submersible pump exceeds the operating current value of the earth leakage protector (usually not more than 30 milliamps), so as to avoid electric leakage and waste of electric energy to ensure safety. 2, the power supply voltage abnormalities do not turn off rural areas due to low voltage power supply line is longer, the voltage is too low at the end of the line is common. When the phase voltage is lower than 198 volts, the line voltage is lower than 342 volts, the submersible pump motor speed drops, when less than 70% of the rated speed, start the centrifugal switch will be closed, resulting in a long time winding start energized or even burn out Windings and capacitors. In contrast, overvoltages cause the motor to overheat and burn the windings. Therefore, the submersible pump operation, the operator must always observe the power supply voltage value, if less than 10% of the rated voltage below 10% above the rated voltage, the motor should be stopped to find out the cause and troubleshooting. 3, to avoid frequent switching Do not switch the submersible pump frequently, this is because the pump will stop when the return flow, if immediately boot, the motor load will start, leading to the starting current is too large and burn the winding. As the start-up current, frequent start-up will also burn the submersible pump motor windings. 4, do not allow submersible pump long-term overload work To avoid submersible pump long-term overload work, do not pumping large amounts of water and keep the current value is observed on the nameplate if the value is found, if the current is too large should be shut down an examination. In addition, the pump running time dehydration should not be too long, so as not to overheat the motor and burned. 5, the direction of rotation of the motor should be correct to find out the direction of rotation of the motor, there are many types of submersible pumps can forward and reverse the water, but the reversal of the small amount of water, the current is large, the reversal of a long time Damage to motor windings. 6, cable installation and submersible pump insulation resistance requirements When installing submersible pump, the cable should be overhead, the power cord should not be too long. Submersible pump into the water or made when not to force the cable, so as not to cause the power cord rupture. Submersible pumps do not sink into the mud during work, otherwise it will lead to poor motor cooling and burn motor windings. When installed, the insulation resistance of the motor should not be less than 0.5 megohms. 7. Qinqin ground see problems found in a timely manner to repair the motor often check, if found under the crack, the rubber seal ring damage or failure, etc., should be promptly replaced or repaired to avoid water infiltration submersible pumps.
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Συγγραφέας:

Mr. Bruce Tang

ΗΛΕΚΤΡΟΝΙΚΗ ΔΙΕΥΘΥΝΣΗ:

bruce.tang@macxipump.com

Phone/WhatsApp:

+8613773149257

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Συγγραφέας:

Mr. Bruce Tang

ΗΛΕΚΤΡΟΝΙΚΗ ΔΙΕΥΘΥΝΣΗ:

bruce.tang@macxipump.com

Phone/WhatsApp:

+8613773149257

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