Portable System for Immotive Multiphasic Motive Force Electrical Machine Testing

• US 20110191034A1
• Filed: 10/04/2008
• Published: 08/04/2011
• Est. Priority Date: 10/04/2008
• Status: Active Grant

• Current Assignee: Avo Multi-AMP Corporation (Thyssen Bornemisza Family)
• Original Assignee: SKF USA Incorporated (SKF)
• Inventors: Lee, Sang Bin, Wiedenbrug, Ernesto
• Granted Patent: US 9,261,562 B2
• Time in Patent Office: Days
• US Class Current: 702/35
• CPC Class Codes: G01R 31/343 in operation
• CPC Class Codes: H02P 29/0241 the fault being an overvoltage

Abstract

A portable test device (1) can be configured as a rotor conductivity anomaly tester, a magnetic core anomaly tester, or a rotational eccentricity fault tester for a multiphasic motive force electrical machine (6) by providing an immotive multiphasic motive force electrical machine test signal from a plurality of multiphasic motive force electrical machine signal generators (4) through a detachable electrical power connectivity (2) and by having a multiphasic motive force electrical machine fault analyzer (16) that can sense responses and discern the existence of a fault. Control of the test signal can be accomplished by an immotive multiphasic test signal controller (3) that varies frequency and achieves incremental movement or to achieve stator magnetization plane angle changes or movement that tests angular relationships.

Claims

1-34. -34. (canceled)

35. A portable multiphasic motive force electrical machine test device comprising:

a portable test device containment;

a plurality of interconnected waveform signal generators established within said portable test device containment;

an immotive multiphasic test signal controller to which said plurality of interconnected waveform signal generators are responsive;

test containment supply circuitry responsive to said immotive multiphasic test signal controller; and

a detachable electrical power connectivity issuing from said portable test device containment and electrically connected to said test containment supply circuitry.

36. A portable multiphasic motive force electrical machine test device as described in claim 35 and further comprising:

a multiphasic motive force electrical machine response sensor element;

a sensor return connected to said multiphasic motive force electrical machine response sensor element;

a multiphasic motive force electrical machine fault analyzer responsive to said sensor element and configured to assess the existence of a fault in a multiphasic motive force electrical machine.

37. A portable multiphasic motive force electrical machine test device as described in claim 36 wherein said a plurality of interconnected waveform signal generators established within said portable test device containment comprises a plurality of multiphasic motive force electrical machine signal generators,

38. A portable multiphasic motive force electrical machine test device as described in claim 35 wherein said immotive multiphasic test signal controller to which said plurality of interconnected waveform signal generators are responsive comprises an immotive multiphasic test signal variation controller.

39. A portable multiphasic motive force electrical machine test device as described in claim 38 wherein said wherein said immotive multiphasic test signal controller to which said plurality of interconnected waveform signal generators are responsive comprises an immotive multiphasic test signal reapplication controller, and further comprising a multiphasic motive force electrical machine analyzer configured to assess the existence of a fault in said multiphasic motive force electrical machine.

40. A portable multiphasic motive force electrical machine test device as described in claim 38 wherein said immotive multiphasic test signal variation controller comprises an immotive multiphasic test signal variation controller selected from a group consisting of:

an immotive multiphasic test signal voltage variation controller;

an immotive multiphasic test signal current variation controller;

an immotive multiphasic test signal magnitude variation controller;

an immotive multiphasic test signal relative amplitude variation controller;

an immotive multiphasic test signal frequency variation controller;

all permutations and combination of the above.

41. A portable multiphasic motive force electrical machine test device as described in claim 35 wherein said a plurality of interconnected waveform signal generators established within said portable test device containment comprises an interconnected waveform signal generators selected from a group consisting of:

a sinusoidal waveform immotive multiphasic test signal generator;

a multiple frequency immotive multiphasic test signal generator;

a frequency sweep immotive multiphasic test signal generator;

a sawtooth waveform immotive multiphasic test signal generator;

a fourier transform determinate waveform immotive multiphasic test signal generator;

all permutations and combination of the above.

42. A portable multiphasic motive force electrical machine test device as described in claim 35 wherein said an immotive multiphasic test signal controller to which said plurality of interconnected waveform signal generators are responsive comprises an immotive multiphasic test signal frequency variation controller.

43. A portable multiphasic motive force electrical machine test device as described in claim 42 wherein said a plurality of interconnected waveform signal generators established within said portable test device containment comprises an interconnected waveform signal generators selected from a group consisting of:

an about ¼

Hz immotive multiphasic test waveform signal generator;

an about 10 Hz immotive multiphasic test waveform signal generator;

an about 500 Hz immotive multiphasic test waveform signal generator;

an about 1000 Hz immotive multiphasic test waveform signal generator;

a sub-hertz immotive multiphasic test waveform signal generator;

a high and low frequency immotive multiphasic test waveform signal generator;

a superimposed high and low frequency immotive multiphasic test waveform signal generator;

a plurality of different frequency immotive multiphasic test waveform signals generator;

a superimposed immotive multiphasic test waveform signal and movement signal generator;

a variable depth immotive multiphasic test waveform signal generator;

a rotor component immotive multiphasic test waveform signal generator;

a stator component immotive multiphasic test waveform signal generator;

a first component optimized immotive multiphasic test waveform signal generator;

a second component optimized immotive multiphasic test waveform signal generator;

a first effect indicative immotive multiphasic test waveform signal generator;

a second effect indicative immotive multiphasic test waveform signal generator;

a depth effect indicative immotive multiphasic test waveform signal generator;

all permutations and combination of the above.

44. A portable multiphasic motive force electrical machine test device as described in claim 35 wherein said immotive multiphasic test signal controller to which said plurality of interconnected waveform signal generators are responsive comprises an immotive multiphasic test signal amplitude variation controller.

45. A portable multiphasic motive force electrical machine test device as described in claim 44 wherein said immotive multiphasic test signal amplitude variation controller comprises an immotive multiphasic test signal relative amplitude variation controller.

46. A portable multiphasic motive force electrical machine test device as described in claim 44 wherein said immotive multiphasic test signal amplitude variation controller comprises an immotive multiphasic test signal magnetic field intensity factor variation controller.

47. A portable multiphasic motive force electrical machine test device as described in claim 46 wherein said immotive multiphasic test signal magnetic field intensity factor variation controller comprises an immotive multiphasic test signal magnetic field intensity factor variation controller selected from a group consisting of:

an about 0.33 tesla factor immotive multiphasic test signal magnetic field intensity factor variation controller;

an about 0.50 tesla factor immotive multiphasic test signal magnetic field intensity factor variation controller;

an about 0.67 tesla factor immotive multiphasic test signal magnetic field intensity factor variation controller;

an about one tesla factor immotive multiphasic test signal magnetic field intensity factor variation controller;

an about 1.33 tesla factor immotive multiphasic test signal magnetic field intensity factor variation controller;

all permutations and combination of the above.

48. A method of testing for a rotor conductivity anomaly in a multiphasic motive force electrical machine comprising the steps of:

accepting a multiphasic motive force electrical machine in situ in a working environment;

positioning a portable test device proximate to an electrical supply for said multiphasic motive force electrical machine;

detachably electrically connecting said portable test device to said electrical supply for said multiphasic motive force electrical machine;

establishing movement elements of said multiphasic motive force electrical machine in a substantially stationary state;

generating an immotive multiphasic test signal from said portable test device;

applying said immotive multiphasic test signal to at least a portion of said electrical supply for said multiphasic motive force electrical machine; and

sensing at least one response of said multiphasic motive force electrical machine to said immotive multiphasic test signal; and

discerning the existence of a rotor conductivity anomaly from said response of said multiphasic motive force electrical machine to said immotive multiphasic test signal.

49. A method of testing for a rotor conductivity anomaly in a multiphasic motive force electrical machine as described in claim 48 wherein said step of discerning the existence of a rotor conductivity anomaly from said response of said multiphasic motive force electrical machine to said immotive multiphasic test signal comprises the step of discerning the existence of a rotobar fault.

50. A method of testing for a rotor conductivity anomaly in a multiphasic motive force electrical machine as described in claim 48 wherein said step of discerning the existence of a rotor conductivity anomaly from said response of said multiphasic motive force electrical machine to said immotive multiphasic test signal comprises the step of discerning the existence of a frequency variation effect.

51. A method of testing for a rotor conductivity anomaly in a multiphasic motive force electrical machine as described in claim 50 wherein said step of discerning the existence of a frequency variation effect comprises the step of discerning the existence of an effect that decreases with increasing frequency test signals.

52. A method of testing for a rotor conductivity anomaly in a multiphasic motive force electrical machine as described in claim 49 and further comprising the step of assessing the existence of a rotobar fault depth indicia,

53. A method of testing for a rotor conductivity anomaly in a multiphasic motive force electrical machine as described in claim 48 wherein said step of discerning the existence of a rotor conductivity anomaly from said response of said multiphasic motive force electrical machine to said immotive multiphasic test signal comprises the step of discerning the existence of a rotor conductivity anomaly selected from a group consisting of:

discerning the existence of a rotor resistance anomaly;

discerning the existence of a rotor circuit resistance anomaly;

discerning the existence of a motor brush imbalance anomaly;

discerning the existence of a motor diode bridge anomaly; and

all permutations and combination of the above.

54. A method of testing for a rotor conductivity anomaly in a multiphasic motive force electrical machine as described in claim 48 wherein said step of discerning the existence of a rotor conductivity anomaly from said response of said multiphasic motive force electrical machine to said immotive multiphasic test signal comprises the step of discerning the existence of a locational variation effect.

85. A method for multiphasic motive force electrical machine testing as described in claim 48 and further comprising the step of discerning the existence of a stator magnetization core fault from said response of said multiphasic motive force electrical machine to said immotive multiphasic test signal.

86. A method for multiphasic motive force electrical machine testing as described in claim 85 wherein said step of discerning the existence of a stator magnetization core fault from said response of said multiphasic motive force electrical machine to said immotive multiphasic test signal comprises the step of discerning the existence of a frequency variation effect.

87. A method for multiphasic motive force electrical machine testing as described in claim 86 wherein said step of discerning the existence of a frequency variation effect comprises the step of discerning the existence of a substantially frequency squared proportional effect.

93. A method for multiphasic motive force electrical machine testing as described in claim 48 and further comprising the step of discerning the existence of a rotational eccentricity fault for said multiphasic motive force electrical machine from said response to said immotive multiphasic test signal.

94. A method for multiphasic motive force electrical machine testing as described in claim 93 wherein said step of discerning the existence of a rotational eccentricity fault for said multiphasic motive force electrical machine from said response to said immotive multiphasic test signal comprises the step of discerning the existence of a frequency variation effect.

95. A method for multiphasic motive force electrical machine testing as described in claim 94 wherein said step of discerning the existence of a rotational eccentricity fault for said multiphasic motive force electrical machine from said response to said immotive multiphasic test signal further comprises the step of discerning the existence of a locational variation effect.

96. A method for multiphasic motive force electrical machine testing as described in claim 94 wherein said step of discerning the existence of a frequency variation effect comprises the step of discerning the existence of an effect that increases with increasing frequency test signals.

55-84. -84. (canceled)

88-92. -92. (canceled)

97-169. -169. (canceled)