SUBMERSIBLE ELECTRIC MOTOR Russian patent published in 2005 - IPC

FIELD: electrical engineering; submersible electric motors.

SUBSTANCE: proposed submersible electric motor has barrel-shaped stator incorporating press-fitted magnetic core, extended three-phase winding, head, rotor disposed inside stator barrel, shaft passed through head, thrust bearing assembly, and current lead-in assembly connected to stator winding. Head is provided with duct to receive case of telemetering unit incorporating pressure, temperature, and vibration transducers, processor, power amplifier, dc voltage supply, and interface. Pressure transducer has series-connected strain sensor, pressure-transducer voltage amplifier, and pressure-transducer analog-to-digital converter. Temperature transducer has series-connected temperature-transducer sensing element, temperature-transducer voltage amplifier, and temperature-transducer analog-to-digital converter. Interface output is connected to input of dc voltage supply whose first output is connected to power amplifier, second one, to pressure strain sensor, and third output, to voltage amplifiers and analog-to-digital converters of pressure and temperature transducers, temperature-transducer sensing element, vibration transducer, and processor that affords analysis of information arriving from above-mentioned transducers, computation, coding, and data transfer to control station. Power amplifier output is connected to control device input. Analog-to-digital converter of pressure transducer is built in processor. Analog-to-digital converter of temperature transducer is connected to processor. Two outputs of vibration transducer are connected to two inputs of processor whose output is connected through power amplifier to interface input; interface output is connected to current lead-in assembly.

EFFECT: improved design.

1 cl, 2 dwg