Siemens Industry, Inc.

Siemens Energy & Automation, Inc.

Siemens Aktiengesellschaft

William R Finley

Mark Hodowanec

Nicholas G Lang

Brian Pellegrino

Jason Obermeyer

Yagnesh Kikaganeshwala

Willi Lutz

Klaus Schäfer

Kevin Dause

David Beckman

Benjamin Flick

Michael Laubenthal

Kim Hussain

Joerg Ernst

A method for manufacturing electrodynamic machine conductive coils, such as alternating current induction motor stator coils. A continuous strand of insulation coated wire is formed into a generally planar elongated closed loop having a circumference and an outer surface. Thereafter a permanent insulation layer is applied to the closed loop outer surface, preferably by spiral wrapping insulating tape about the circumference of the closed loop with a tape wrapping machine. The insulating tape has a catalytic chemical compound including at least one part of a multi-part epoxy resin. The closed loop is shaped into a rigid conductive coil by application pressure, in order to conform the coil to a desired profile. Application of the permanent insulation layer to the closed loop prior to its final shaping enables machine insulation taping over a larger portion of the coil circumference and reduces need for slower and more expensive hand taping.

Method for forming electrodynamic machine insulated coils

Machines and motors with multiple three-phase AC power connections. A motor includes first, second, and third windings arranged to drive a rotator shaft. A first end of each winding is connected to a respective power input of a three-phase alternating current (AC) power source and a second end of each winding is connected to a neutral. The motor includes at least one intermediate tap connected to each of the first, second, and third windings at substantially equal respective distances between the neutral and the respective power inputs. The intermediate taps together provide a three-phase AC power output at a voltage that is less than the voltage of the three-phase AC power source.

Electric machine with power taps

Certain exemplary embodiments comprise an computer readable storage device having instructions stored therein that are indicative of reducing slow roll electrical runout value of a shaft of an electric motor, the shaft having a runout sensing area; the instructions including determining an electrical runout value for the runout sensing area; rotating the shaft; determining the temperature range and time interval for heating the runout sensing area of the shaft sufficient to reduce the electrical runout value; and heating the shaft sensing area during shaft rotation at the calculated temperature range for the calculated time interval.

System and method for shaft heat treament for correction slow roll

Certain exemplary embodiments can provide a terminal box adapted to be releasably and/or operatively attached to a selected electric motor of a plurality of electric motors. The terminal box can be adapted to receive a plurality of electrical wires. The plurality of electrical wires can be adapted to convey electrical energy to the selected electric motor.

Devices, systems, and/or methods for electrically coupling a high voltage electric motor

Certain exemplary embodiments comprise an electric motor that comprises a stiff shaft. The electric motor can have an output rating that is greater than approximately 200 horsepower. The electric motor can have a ratio of a rotor core length to an outside stator diameter that is greater than approximately 0.7.

Devices, systems, and methods for producing an electric motor

Certain exemplary embodiments comprise a method that can comprise, via a device that originates sub-harmonic vibrations, applying a vibration treatment, to a rotor of an electric motor for a predetermined time period. The rotor can be thermally sensitive. The vibration treatment can be adapted to reduce internal stresses in the rotor, thereby reducing a vibration level of the rotor.

Devices, systems, and methods for relieving stress

Certain exemplary embodiments comprise a method comprising a plurality of activities comprising, for a shaft of an electric motor, the shaft comprising a runout sensing area: determining an electrical runout value for the runout sensing area; rotating the shaft; and/or heating the runout sensing area of the shaft sufficient to reduce the electrical runout value.

Methods for correcting slow roll

Certain exemplary embodiments comprise a system comprising: a heating element; and a control system adapted to control a heating of a shaft to a temperature within a predetermined temperature range for a predetermined time interval, the heating sufficient to reduce an electrical runout value of the shaft, the heating occurring while the shaft is rotating.

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Cincinnati, OH, United States of America

William R Finley