(2015010) WIRELESS MOTOR POWER-CURRENT-VOLTAGE MEASUREMENTS AND ANALYSIS
Wireless high-frequency motor power-current-voltage measurements are used to analyze the electrical and mechanical performance of pumping units. The sensors can be mounted permanently in the electrical box with a water-tight connection on the side of the electrical box for attachment of a small plug-in radio for wireless communication to a PC base station. These measurements can be performed without opening the electrical box. In addition, starter boxes without internal sensors can be analyzed using portable sensors that require opening the box and attachment of two current and three voltage sensors.
TAM Software in the PC receives and analyzes the data to determine power usage, power generation, pumping unit balance, gear box upstroke and downstroke torques, motor loadings, and power line loss. Power line loss is an analysis performed to analyze the power line loss between the electrical system and the pumping unit motor. The counter-weight movement for gear box balance is determined easily without use or knowledge of the pumping unit dimensions.