Sensor with discrete impedance elements for high voltage connectors

Patent metadata

Field	Value
Publication number	US-11099215-B2
Application number	US-201816646428-A
Country	US
Kind code	B2
Filing date	Sep 28, 2018
Priority date	Sep 28, 2017
Publication date	Aug 24, 2021
Grant date	Aug 24, 2021

Abstract

The invention relates to a sensor (3) for measuring a voltage in a HV/MV power network in a separable connector (2), the sensor comprising: —an adapter element (11) comprising a high voltage connection adapted to be mechanically and electrically coupled to a high voltage conductor (7) of the separable connector (2) and to receive HV/MV voltage from the separable connector, —a sensor body (12) adapted to be mechanically and electrically coupled to the adapter element (11) and comprising a divider assembly (24) with a plurality of discrete impedance elements, which are electrically connected in series such as to be operable as a voltage divider for sensing a voltage and a low voltage connection (42) configured to provide a low voltage signal corresponding to a high voltage signal present in the HV/MV power network, wherein the adapter element (11) and the sensor body (12) are separate elements that are adapted to be installed to the separable connector (2), wherein the adapter element is configured to be installed between the separable connector and the sensor body.

First claim

The invention claimed is:

1. Sensor for measuring a voltage in a HV/MV power network in a separable connector, the sensor comprising:
an adapter element comprising a high voltage connection adapted to be mechanically and electrically coupled to a high voltage conductor of the separable connector and to receive HV/MV voltage from the separable connector;
a sensor body adapted to be mechanically and electrically coupled to the adapter element and comprising a divider assembly with a plurality of discrete impedance elements, which are electrically connected in series such as to be operable as a voltage divider for sensing a voltage and a low voltage connection configured to provide a low voltage signal corresponding to a high voltage signal present in the HV/MV power network;
wherein the adapter element and the sensor body are separate elements that are adapted to be installed to the separable connector, wherein the adapter element is configured to be installed between the separable connector and the sensor body, and wherein the adapter element comprises an insulating element, which is sized and shaped such to fit into a recess of the separable connector.

2. Sensor for measuring a voltage according to claim 1 , wherein the sensor comprises an insulating material and wherein the sensor is configured to be inserted into the separable connector to encase the high voltage conductor of the separable connector.

3. Sensor for measuring a voltage according to claim 1 , wherein the adapter element comprises a metal part for making electrical and mechanical connection to the high voltage conductor of the separable connector.

4. Sensor for measuring a voltage according to claim 3 , wherein the adapter element comprises a thread for being threaded onto or into the high voltage conductor of the separable connector and/or a protrusion for cooperating with any kind of tool for threading the adapter element onto or into the separable connector.

5. Sensor for measuring a voltage according to claim 1 , wherein the adapter element comprises means for mechanically and electrically connecting the adapter element to the sensor body.

6. Sensor for measuring a voltage according to claim 1 , wherein the sensor body comprises a conductor that is adapted to be mechanically and electrically coupled to a metal part of the adapter element.

7. Sensor for measuring a voltage according to claim 1 , wherein the sensor body comprises an insulating element carrying a conductor as well as the divider assembly.

8. Sensor for measuring a voltage according to claim 1 , wherein the sensor body provides an elongated handle portion.

9. Sensor for measuring a voltage according to claim 8 , wherein the handle portion of the sensor body holds the divider assembly.

10. Sensor for measuring a voltage according to claim 1 , wherein the sensor body comprise means for mechanically connecting the sensor body to the adapter element.

11. Power network comprising a HV/MV power conductor, a separable connector and a sensor according to claim 1 .

12. Sensor for measuring a voltage in a HV/MV power network in a separable connector, the sensor comprising:
an adapter element comprising a high voltage connection adapted to be mechanically and electrically coupled to a high voltage conductor of the separable connector and to receive HV/MV voltage from the separable connector;
a sensor body adapted to be mechanically and electrically coupled to the adapter element and comprising a divider assembly with a plurality of discrete impedance elements, which are electrically connected in series such as to be operable as a voltage divider for sensing a voltage and a low voltage connection configured to provide a low voltage signal corresponding to a high voltage signal present in the HV/MV power network;
wherein the adapter element and the sensor body are separate elements that are adapted to be installed to the separable connector, wherein the adapter element is configured to be installed between the separable connector and the sensor body, wherein the sensor body comprises an insulating element, wherein the insulating element of the sensor body comprises an outer elastic surface adapted in size and shape to a contacting surface of the adapter element and/or the separable connector.

13. Power network comprising a HV/MV power conductor, a separable connector and a sensor according to claim 12 .

14. Sensor for measuring a voltage in a HV/MV power network in a separable connector, the sensor comprising:
an adapter element comprising a high voltage connection adapted to be mechanically and electrically coupled to a high voltage conductor of the separable connector and to receive HV/MV voltage from the separable connector;
a sensor body adapted to be mechanically and electrically coupled to the adapter element and comprising a divider assembly with a plurality of discrete impedance elements, which are electrically connected in series such as to be operable as a voltage divider for sensing a voltage and a low voltage connection configured to provide a low voltage signal corresponding to a high voltage signal present in the HV/MV power network;
wherein the adapter element and the sensor body are separate elements that are adapted to be installed to the separable connector, wherein the adapter element is configured to be installed between the separable connector and the sensor body, wherein the sensor comprises a bayonet base to be mounted on the adapter element, the bayonet base comprising bayonet slots.

15. Sensor for measuring a voltage according to claim 14 , wherein the sensor body comprises pins for engaging with the bayonet base.

16. Sensor for measuring a voltage according to claim 14 , wherein the adapter element comprises a multisided pin for engaging with a multisided hole in the bayonet base.

17. Power network comprising a HV/MV power conductor, a separable connector and a sensor according to claim 14 .

Assignees

• 3M Innovative Properties Co

Inventors

• Westkamp Harald
• Schubert Bernd
• Gravermann Mark
• Weichold Jens

Classifications

• G01R15/04 Primary

  Voltage dividers · CPC title

• G01R1/06777 Primary

  High voltage probes · CPC title

• G01R1/20

  Modifications of basic electric elements for use in electric measuring instruments; Structural combinations of such elements with such instruments · CPC title

• G01R15/06 Primary

  having reactive components, e.g. capacitive transformer · CPC title

• G01R15/16

  using capacitive devices · CPC title