Measuring Method and Precautions of the Winding of Motor in Deep Well Pump

Measuring Method of Motor Winding of Deep Well Pump and Its Matters Needing Attention
    When measuring the DC resistance of the stator windings of a deep well pump, the temperature inside the motor of the deep well pump should be in accordance with the ambient medium temperature, and the rotor of the submersible pump should be stationary. The DC resistance of the stator winding shall be measured at the end of the lead-out cable of the submersible pump.
     For three-phase submersible deep-well pumps, the DC resistance of each phase winding or the DC resistance of each line should be measured. For single-phase submersible pumps, the DC resistance of the main winding and the secondary winding should be separately measured.
When the resistance value of the deep-well pump pump stator winding is large (more than 1Ω), it is generally measured by single-arm bridge. When the resistance value of the deep well pump stator winding is less than 1Ω, because the contact resistance and the wiring resistance exist, if still using the single-arm bridge to measure, will have a greater impact on the measured resistance value of cattle, Arm bridge for measurement.