Equipment Condition Assessment for Submersible Pumps

We conduct submersible pump assessments using a combination of above-surface testing and historical data review. Electrical testing includes insulation resistance measurement at specified test voltage with temperature correction per IEEE 43, polarization index calculation, cable insulation resistance between conductors and between conductor and ground, and motor current analysis at operating load. Performance assessment compares measured flow rate and motor amperage against the pump curve at measured system head. We review historical insulation resistance records to establish degradation trends and estimate remaining insulation life. Installation condition is assessed from above-surface observations (discharge connection, junction box, control panel, wet well water level control) and supplemented by any available data from previous pull events. Each pump receives a condition classification: green (continue operating with routine monitoring), yellow (schedule pull within defined timeframe), or red (pull immediately, risk of imminent failure). Assessment reports include pull priority rankings across the submersible pump fleet, estimated insulation remaining life, and recommended monitoring intervals.