Voltage sensor housing and assembly including the same

Patent metadata

Field	Value
Publication number	US-2016187389-A1
Application number	US-201414583882-A
Country	US
Kind code	A1
Filing date	Dec 29, 2014
Priority date	Dec 29, 2014
Publication date	Jun 30, 2016
Grant date	—

Abstract

A voltage sensor housing includes a top portion including a conductive top portion composed of conductive material and non-conductive top portions composed of non-conductive material, a bottom portion composed of non-conductive material, side portions composed of non-conductive material, wherein the top portion the bottom portion and the side portions define an interior area structured to hold a voltage sensor, and conductive side portions composed of conductive material and being disposed adjacent to the side portions. The conductive top portion is electrically floating and the conductive side portions are electrically grounded.

First claim

1 . A voltage sensor housing comprising:
a top portion including a conductive top portion composed of conductive material and non-conductive top portions composed of non-conductive material; a bottom portion composed of non-conductive material; side portions composed of non-conductive material, wherein the top portion the bottom portion and the side portions define an interior area structured to hold a voltage sensor; and conductive side portions composed of conductive material and being disposed adjacent to the side portions, wherein the conductive top portion is electrically floating and the conductive side portions are electrically grounded.

2 . The voltage sensor housing of claim 1 , wherein the conductive top portion is disposed in a central area of the top portion and the non-conductive top portions are disposed in outer areas of the top portion.

3 . The voltage sensor housing of claim 1 , wherein the conductive side portions extend above the top portion.

4 . The voltage sensor housing of claim 1 , wherein the top portion, the bottom portion, and the side portions seal the interior area in a vacuum.

5 . A voltage sensor assembly comprising:
a voltage sensor including:
a first plate;
a first electrode corresponding to and disposed a first distance away from the first plate;
a second plate; and
a second electrode corresponding to and disposed a second distance away from the second plate; and
a voltage sensor housing including:
atop portion including a conductive top portion composed of conductive material and non-conductive top portions composed of non-conductive material;
a bottom portion composed of non-conductive material;
side portions composed of non-conductive material, wherein the top portion the bottom portion and the side portions define an interior area; and
conductive side portions composed of conductive material and being disposed adjacent to the side portions,
wherein the conductive top portion is electrically floating and the conductive side portions are electrically grounded, and
wherein the voltage sensor is disposed in the interior area of the voltage sensor housing.

6 . The voltage sensor assembly of claim 5 , further comprising:
voltage sensor circuitry including:
a control unit structured to control one of the first plate and the second plate to be grounded and the other of the first plate and the second plate to be electrically floating; and
a differential amplifier electrically connected to the first electrode and the second electrode and being structured to output an output voltage that is proportional to a difference in voltage between the first electrode and the second electrode.

7 . The voltage sensor assembly of claim 5 , wherein the conductive op portion is disposed in a central area of the top portion and the non-conductive op portions are disposed in outer areas of the top portion.

8 . The voltage sensor assembly of claim 5 , wherein the conductive side portions extend above the top portion.

9 . The voltage sensor assembly of claim 5 , wherein the top portion, the bottom portion, and the side portions seal the interior area in a vacuum.

10 . The voltage sensor assembly of claim 5 , wherein the first plate and the first electrode are separated by a first air gap and the second plate and the second electrode are separated by a second air gap.

11 . The voltage sensor assembly of claim 5 , wherein the first plate and the first electrode and the second plate and the second electrode are separated by a dielectric material.

12 . A voltage sensor housing comprising:
a conductive top portion composed of conductive material; a conductive bottom portion composed of conductive material; conductive side portions composed of conductive material, wherein the conductive top portion, the conductive bottom portion, and the conductive side portions define an interior area structured to hold a voltage sensor, wherein the conductive top portion, the conductive bottom portion, and the conductive side portions are electrically grounded, and wherein two openings are formed in the conductive top portion.

13 . The voltage sensor housing of claim 12 , wherein the interior area is structured to hold a voltage sensor including two plates; and wherein the two openings formed in the conductive top portion are disposed above the two plates, respectively.

14 . The voltage sensor housing of claim 13 , wherein each of the two openings is larger than the plate it is disposed above.

15 . A voltage sensor assembly comprising:
a voltage sensor including:
a first plate;
a first electrode corresponding to and disposed a first distance away from the first plate;
a second plate; and
a second electrode corresponding to and disposed a second distance away from the second plate; and
a voltage sensor housing including:
a conductive top portion composed of conductive material;
a conductive bottom portion composed of conductive material;
conductive side portions composed of conductive material, wherein the conductive top portion, the conductive bottom portion, and the conductive side portions define an interior area structured to hold a voltage sensor,
wherein the conductive top portion, the conductive bottom portion, and the conductive side portions are electrically grounded,
wherein two openings are formed in the conductive top portion, and
wherein the voltage sensor is disposed in the interior area of the voltage sensor housing.

16 . The voltage sensor assembly of claim 15 , further comprising:
voltage sensor circuitry including:
a control unit structured to control one of the first plate and the second plate to be grounded and the other of the first plate and the second plate to be electrically floating; and
a differential amplifier electrically connected to the first electrode and the second electrode and being structured to output an output voltage that is proportional to a difference in voltage between the first electrode and the second electrode.

17 . The voltage sensor assembly of claim 15 , wherein the two openings formed in the conductive top portion are disposed above the first plate and the second plate, respectively.

18 . The voltage sensor assembly of claim 17 , wherein each of the two openings is larger than the plate it is disposed above.

19 . The voltage sensor assembly of claim 15 , wherein the first plate and the first electrode are separated by a first air gap and the second plate and the second electrode are separated by a second air gap.

20 . The voltage sensor assembly of claim 15 , wherein the first plate and the first electrode and the second plate and the second electrode are separated by a dielectric material.

Assignees

• Eaton Corp

Inventors

• Kshirsagar Abhijeet Vikram
• Juds Mark Allan
• Dharne Gayatri Shashikant

Classifications

• G01R29/12

  Measuring electrostatic fields {or voltage-potential} · CPC title

• G01R19/0084

  Measuring voltage only · CPC title

• G01R15/16 Primary

  using capacitive devices · CPC title

• G01R19/0053 Primary

  Noise discrimination; Analog sampling; Measuring transients (measuring characteristics of individual pulses G01R29/02; digital sampling G01R19/2509; measuring noise figure G01R29/26) · CPC title

• G01R1/18

  Screening arrangements against electric or magnetic fields, e.g. against earth's field · CPC title