Combination of an electricity conducting element, such as bushing, and a connector cable

Patent metadata

Field	Value
Publication number	US-11469013-B2
Application number	US-201716469150-A
Country	US
Kind code	B2
Filing date	Dec 11, 2017
Priority date	Dec 16, 2016
Publication date	Oct 11, 2022
Grant date	Oct 11, 2022

Abstract

A combination includes: an electricity conducting element and a connector cable. The electricity conducting elements includes: a body of insulating material; an electrical conductor extending through the body; at least one passive electrical sensor embedded or integrated in the body of insulating material; and at least one shielded connector with one or more terminals arranged on an outer surface of the body, the at least one shielded connector being electrically connected to the at least one passive electrical sensor. The connector cable includes: a first shielded connector with one or more terminals for connecting with the at least one shielded connector; a second shielded connector with one or more terminals for connecting with an appliance or a further connector cable; and electrical components arranged closely to the first shielded connector and electrically connected to the terminals of the first shielded connector.

First claim

The invention claimed is:

1. A combination, comprising:
an electricity conducting element, comprising:
a body of insulating material;
an electrical conductor extending through the body;
at least one passive electrical sensor embedded or integrated in the body of insulating material; and
at least one shielded connector with one or more terminals arranged on an outer surface of the body, the at least one shielded connector being electrically connected to the at least one passive electrical sensor; and

a connector cable, comprising:
a first shielded connector with one or more terminals configured to connect with the at least one shielded connector, the one or more terminals of the first shielded connector being shielded from one or more electric fields external to the connector cable;
a second shielded connector with one or more terminals configured to connect with an appliance or a further connector cable, the one or more terminals of the second shielded connector being shielded from the one or more electric fields external to the connector cable; and
electrical components arranged directly adjacent to the first shielded connector and electrically connected to the terminals of the first shielded connector, the electrical components being arranged at a distance from the second shielded connector further than a distance to the first shielded connector and being electrically connected via a cable to the terminals of the second shielded connector.

2. The combination according to claim 1 , wherein the at least one electrical sensor comprises a cylindrical electrical screen arranged concentrically around and spaced apart from the electrical conductor, and
wherein the electrical screen is electrically connected to a terminal of the shielded connector.

3. The combination according to claim 2 , wherein the electrical components comprise a capacitor electrically connected with the cylindrical electrical screen to form a capacitive voltage divider.

4. The combination according to claim 1 , wherein the at least one electrical sensor comprises a Rogowski coil, and
wherein each end of the Rogowski coil is electrically connected to a separate terminal of the shielded connector.

5. The combination according to claim 4 , wherein windings of the Rogowski coil are arranged on a printed circuit board, and
wherein the at least one shielded connector is arranged on the printed circuit board.

6. The combination according to claim 1 , wherein the at least one electrical sensor comprises a temperature sensor embedded in the body of insulating material, and
wherein the temperature sensor is electrically connected to the one or more terminals of the shielded connector.

7. The combination according to claim 1 , wherein two or more shielded connectors are arranged on the outer surface of the body and distributed over a circumference of the body, and
wherein each of the shielded connectors is electrically connected to the at least one electrical sensor.

8. The combination according to claim 1 , wherein the electrical components comprise an analog-to-digital converter configured to convert signals of the at least one sensor of the electricity conducting element into a digital signal, which is supplied to the one or more terminals of the second shielded connector of the connector cable.

9. The combination according to claim 1 , wherein the electrical components comprise an amplifier configured to amplify signals of the at least one sensor of the electricity conducting element.

10. The combination according to claim 1 , wherein the connector cable further comprises an elongate housing configured to house the electrical components,
wherein the first shielded connector is arranged to one end of the housing, and
wherein the cable with the second shielded connector is arranged to another end of the housing.

11. The combination according to claim 1 , wherein the electricity conducting element comprises a bushing, and
wherein the electrical conductor extends in a longitudinal direction through the body.

12. The combination according to claim 1 , wherein the electricity conducting element comprises a bushing.

13. The combination according to claim 1 , wherein the body of insulating material comprises a dielectric epoxy material.

14. The combination according to claim 1 , wherein the at least one passive electrical sensor comprises a Rogowski coil or a primary part of a capacitive voltage divider.

15. A combination, comprising:
a bushing configured to pass through a grounded conducting barrier, the bushing comprising:
a body of insulating material;
an electrical conductor extending in an axial direction entirely through the body;
a passive electrical sensor embedded or integrated in the body of insulating material, the passive electrical sensor being configured to measure a voltage or current present in the electrical conductor; and
a shielded connector with one or more terminals arranged on an outer surface of the body extending longitudinally out from the body in a radial direction, the shielded connector being electrically connected to the passive electrical sensor, the one or more terminals of the shielded connector being shielded from one or more electric fields; and

a connector cable, comprising:
a printed circuit board having electrical components and a first shielded connector arranged thereon;
a second shielded connector with one or more terminals configured to connect with an appliance or a further connector cable, the one or more terminals of the second shielded connector being shielded from the one or more electric fields;
an elongate housing configured to house the electrical components and shield the electrical components from the one or more electric fields,

wherein the first shielded connector has one or more terminals configured to connect with the at least one shielded connector, the one or more terminals of the first shielded connector being shielded from the one or more electric fields,
wherein the electrical components are arranged on the printed circuit board adjacent to the first shielded connector and electrically connected to the terminals of the first shielded connector, the electrical components being electrically connected via a flexible cable to the terminals of the second shielded connector,
wherein the first shielded connector is arranged at one end of the housing,
wherein the flexible cable is arranged at the other end of the housing,
wherein the electrical components are electrically coupled to the passive electrical sensor via the one or more terminals of the first shielded connector and the one or more terminals of the shielded connector.

16. The combination according to claim 15 ,
wherein the passive electrical sensor comprises a Rogowski coil,
wherein each end of the Rogowski coil is electrically connected to a separate one of the terminals of the shielded connector,
wherein windings of the Rogowski coil are arranged on a second printed circuit board, and
wherein the at least one shielded connector is arranged on the second printed circuit board,
wherein the electrical components comprise an amplifier configured to amplify a signal received from the Rogowski coil.

17. The combination according to claim 15 ,
wherein the passive electrical sensor comprises a primary part of a capacitive voltage divider, the primary part comprising:
a cylindrical electrical screen arranged concentrically around and spaced apart from the electrical conductor, the electrical screen being electrically connected to one of the terminals of the shield

Assignees

• Eaton Intelligent Power Ltd

Inventors

• Schoonenberg Gerard
• Lammers Arend
• Morskieft Elisabeth
• Das Amritendu
• Jadhav Ranjit

Classifications

• G01R15/181

  using coils without a magnetic core, e.g. Rogowski coils · CPC title

• H01B17/005 Primary

  Insulators structurally associated with built-in electrical equipment · CPC title

• G01R15/16

  using capacitive devices · CPC title