Measurement device and operating methods thereof for power disturbance indication

Patent metadata

Field	Value
Publication number	US-11067641-B2
Application number	US-201916518761-A
Country	US
Kind code	B2
Filing date	Jul 22, 2019
Priority date	Jul 22, 2019
Publication date	Jul 20, 2021
Grant date	Jul 20, 2021

Abstract

Systems and methods provide for display of a deficiency indicator in response detection of a defined deficiency in an electric signal in an insulated wire. Measurement systems may include a housing sized and shaped to be held in a hand, a set of sensors for sensing a set of electrical characteristics of the electric signal, one or more processors, and a display provided on a surface of the housing. The measurement system may obtain measurements from the set of sensors and detect a presence of the defined deficiency based on the set of measurements. In response to detecting the presence of the defined deficiency, the measurement system may display a deficiency indicator that is representative of the defined deficiency detected.

First claim

The invention claimed is:

1. A measurement device, comprising:
a housing sized and shaped to be held in a hand;
a set of sensors configured to sense a set of electrical characteristics of an electric signal in an insulated wire without galvanically contacting the insulated wire;
a display provided on the housing; and
one or more processors located in the housing, the one or more processors operatively coupled to the set of sensors, wherein in operation the one or more processors:
receive a set of measurements, from the set of sensors, obtained by the set of sensors during a measurement time interval, the set of measurements indicative of the set of electrical characteristics of the electric signal in the insulated wire;
detect a defined deficiency associated with the electric signal in the insulated wire based on the set of measurements; and

display, on the display, a deficiency indicator representative of the defined deficiency associated with the electric signal in the insulated wire in response to detecting the defined deficiency.

2. The measurement device of claim 1 , wherein the set of sensors includes:
a voltage sensor located in the housing that, in operation, senses a voltage in the insulated wire without galvanically contacting the insulated wire; and
a current sensor located in the housing that, in operation, senses a current in the insulated wire without galvanically contacting the insulated wire.

3. The measurement device of claim 1 , wherein the deficiency indicator is one of a plurality of deficiency indicators that include a first set of deficiency indicators each representative of a voltage deficiency associated with the electric signal and a second set of the deficiency indicators each representative of a current deficiency associated with the electric signal.

4. The measurement device of claim 1 , wherein the one or more processors, in operation, are configured to detect a plurality of defined deficiencies associated with the electric signal, and the defined deficiency is one of the plurality of defined deficiencies.

5. The measurement device of claim 1 , wherein the one or more processors, in operation, cause the display to display the deficiency indicator in a defined area in the display.

6. The measurement device of claim 1 , wherein the deficiency indicator indicates a type of deficiency condition detected in the electric signal.

7. The measurement device of claim 1 , wherein, in operation, the one or more processors evaluate whether measurements in the set of measurements satisfy a condition of a plurality of conditions, each condition of the plurality of conditions being associated with a corresponding deficiency indicator of a plurality of deficiency indicators,
wherein detection of the defined deficiency is based on a determination that one or more measurements of the set of measurements satisfy the condition, and the deficiency indicator displayed is associated with the condition.

8. The measurement device of claim 7 , wherein the plurality of conditions includes two or more conditions selected from: a difference with a nominal level, a waveform distortion, a variation exceeding an acceptable deviation, a signal disruption event, a signal imbalance between two or more electric signals, and a power factor deficiency.

9. The measurement device of claim 7 , wherein the condition is a signal deviation condition related to deviation from a defined signal level of a plurality of defined signal levels, and in operation the one or more processors:
determine that a difference between the set of measurements obtained during the measurement time interval and a detected defined signal level for an electrical characteristic of the set of electrical characteristics satisfies the signal deviation condition; and
cause the display to display the deficiency indicator associated with the signal deviation condition as a result of determining that the difference satisfies the signal deviation condition.

10. The measurement device of claim 7 , wherein the condition is a harmonic distortion condition, and in operation the one or more processors:
calculate a harmonic distortion associated with the electric signal based on the set of measurements;
determine that the harmonic distortion satisfies the harmonic distortion condition; and
cause the display to display a deficiency indicator associated with the harmonic distortion condition as a result of determining that the harmonic distortion satisfies the harmonic distortion condition.

11. The measurement device of claim 7 , wherein the condition is a signal variation condition, and in operation the one or more processors:
calculate a representative value for a subset of measurements of the set of measurements, the subset of measurements corresponding to a time interval shorter than the measurement time interval;
determine that a measurement of the set of measurements relative to the representative value satisfies the signal variation condition; and
cause the display to display a deficiency indicator associated with the signal variation condition as a result of determining that the measurement of the set of measurements satisfies the signal variation condition.

12. The measurement device of claim 7 , wherein the condition is a signal disruption condition, and in operation the one or more processors:
determine that a measurement of the set of measurements satisfies the signal disruption condition; and
cause the display to display a deficiency indicator associated with the signal disruption condition as a result of determining that the measurement of the set of measurements satisfies the signal disruption condition.

13. The measurement device of claim 7 , wherein the condition is a power factor deficiency condition, and in operation the one or more processors:
calculate a power factor associated with a plurality of measurements of the set of measurements;
determine that the power factor satisfies the power factor deficiency condition; and
cause the display to display a deficiency indicator associated with the power factor deficiency condition as a result of determining that the power factor satisfies the power factor deficiency condition.

14. The measurement device of claim 7 , wherein the set of measurements is a first set of measurements and the insulated wire is a first insulated wire, wherein the condition is an imbalance condition related to imbalance of signals in two or more insulated wires, and in operation the one or more processors:
receive a second set of measurements, from the set of sensors, obtained by the set of sensors during the measurement time interval, the second set of measurements indicative of the set of electrical characteristics of a second electric signal in a second insulated wire;
determine that a deviation between the first set of measurements and the second set of measurements satisfies the imbalance condition; and
cause the display to display a deficiency indicator associated with the imbalance condition as a result of determining that the deviation between the first set of measurements and the second set of measurements satisfies the imbalance condition.

15. The measurement device of claim 1 , wherein in operation the one or more processors:
cause the display to display alphanumeric characters providing detail regarding the defined deficiency in association with display of the deficiency indicator.

16. The measurement device of claim 15 , further comprising:
a user interface, wherein the one or more processors cause display of the alphanumeric characters in response to receiving a u

Assignees

• Fluke Corp

Inventors

• Gervedink Nijhuis Erik Johan

Classifications

• G01R13/00 Primary

  Arrangements for displaying electric variables or waveforms · CPC title

• G01R13/02

  for displaying measured electric variables in digital form · CPC title

• G01R1/025

  concerning dedicated user interfaces, e.g. GUI, or dedicated keyboards (G01R31/31912 takes precedence) · CPC title

• G01R1/07

  Non contact-making probes · CPC title

• G01R15/14 Primary

  Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks · CPC title