Power cable connector, electrical system and method for assembling power cable connector

• US 11,050,196 B2
• Filed: 10/18/2019
• Issued: 06/29/2021
• Est. Priority Date: 12/20/2018
• Status: Active Grant

• Current Assignee: ABB Schweiz AG (ABB Limited)
• Original Assignee: ABB Schweiz AG (ABB Limited)
• Inventors: Wu, Fumei, Zhang, Yibo, Yang, Qing
• Primary Examiner(s): Riyami, Abdullah A
• Assistant Examiner(s): Alhawamdeh, Nader J
• Application Number:
  US16/657,065
• Publication Number:
  US 20200203896A1
• Time in Patent Office: 620 Days
• CPC Class Codes: G01D 21/00 Measuring or testing not otherwise provided for
• CPC Class Codes: G01K 1/024 for remote indication
• CPC Class Codes: G01K 11/265 using surface acoustic wave [SAW]
• CPC Class Codes: G01K 13/00 Thermometers specially adapted for specific purposes
• CPC Class Codes: G08C 17/02 using a radio link
• CPC Class Codes: H01R 13/53 Bases or cases for heavy duty; Bases or cases for high voltage with means for preventing corona or arcing
• CPC Class Codes: H01R 13/6683 with built-in sensor
• CPC Class Codes: H02G 15/043 with end caps, e.g. sleeve closed at one end
• CPC Class Codes: H02G 15/08 Cable junctions for gas or oil filled cables H02G15/24
• CPC Class Codes: H04Q 2209/47 using RFID associated with sensors
• CPC Class Codes: H04Q 9/00 Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom

Abstract

Embodiments of present disclosure relate to a power cable connector, an electrical system and a method for assembling a power cable connector. The power cable connector comprises a housing comprising a first portion adapted to contain a conductive plug inserted therethrough. The power cable connector also comprises a first layer arranged on at least a part of an inner wall of the housing. The power cable connector further comprises a second layer arranged on the first layer so that the first layer is at least partially located between the inner wall of the housing and the second layer. The power cable connector further comprises a passive wireless measuring apparatus embedded into the second layer, wherein in the case that the conductive plug is inserted into the first portion, a surface of the passive wireless measuring apparatus is coupled to the conductive plug. According to embodiments of the present disclosure, the on-line monitoring of the temperature of the conductive plug can be obtained and the power failure can be detected in advance.

Claims

1. An electrical system, comprising:

a power cable connector comprising;

a housing comprising a first portion adapted to contain a conductive plug when inserted therethrough;

a first layer arranged on at least a part of an inner wall of the housing;

a second layer arranged on the first layer so that the first layer is at least partially located between the inner wall of the housing and the second layer; and

a passive wireless measuring apparatus embedded into the second layer of the housing, wherein only in the case when the conductive plug is inserted into the first portion, a surface of the passive wireless measuring apparatus is coupled to the conductive plug;

a first antenna; and

a reader coupled to the first antenna, wherein the reader is configured to provide wireless radio frequency energy to power the passive wireless measuring apparatus in the power cable connector and receiving temperature data via the first antenna.

2. The electrical system of claim 1, wherein the conductive plug comprises a plate portion and a cylindrical portion, a first thickness of the plate portion being less than a first diameter of the cylindrical portion to form a shoulder on an end of the cylindrical portion adjacent to the plate portion.

3. The electrical system of claim 1, wherein the passive wireless measuring apparatus is coupled to the second layer via a semi-conductive material.

4. The electrical system of claim 3, wherein the semi-conductive material is selected from a group consisting of EPDM rubber, silicone rubber, acrylic resin, epoxy resin and combination thereof.

5. The electrical system of claim 1, further comprising:

a further passive wireless measuring apparatus embedded into the second layer of the housing.

6. The electrical system of claim 1, wherein the conductive plug comprises an opening at an end thereof for receiving a conductor.

7. The electrical system of claim 1, wherein the housing is made of a semi-conductive material.

8. The electrical system of claim 1, wherein the first layer is made of an insulation material.

9. The electrical system of claim 1, wherein the second layer is made of a semi-conductive material.

10. The electrical system of claim 1, wherein the conductive plug is made of metal.

11. The electrical system of claim 1, further comprising:

a second portion, wherein the first portion comprises an end connected to the second portion so that the first and second portions form a “

T”

shape.

12. The electrical system of claim 1, wherein the passive wireless measuring apparatus comprises a radio frequency identification (RFID) tag.

13. The electric system according to claim 1, wherein the power cable connector is configured to fit into a basic insulating plug of a switchgear.

14. The electric system according to claim 1, further comprising:

a further power cable connector of comprising;

a second housing comprising a first portion adapted to contain a conductive plug when inserted therethrough;

a first layer arranged on at least a part of an inner wall of the second housing, the first layer is made of an insulation material;

a second layer arranged on the first layer so that the first layer is at least partially located between the inner wall of the second housing and the second layer; and

a second passive wireless measuring apparatus embedded into the second layer of the second housing, wherein only in the case when the conductive plug is inserted into the first portion, a surface of the second passive wireless measuring apparatus is coupled to the conductive plug.

15. The electric system according to claim 14, further comprising:

a second antenna coupled to the reader, and configured to match an antenna of the further power cable connector.

16. An Internet of Things system comprising:

a power cable connector of claim 1.

17. The electrical system of claim 1, wherein the passive wireless measuring apparatus is directly coupled to the second layer.

18. An electrical system, comprising:

a power cable connector comprising;

a housing comprising a first portion adapted to contain a conductive plug when inserted therethrough;

a first layer arranged on at least a part of an inner wall of the housing;

a second layer arranged on the first layer so that the first layer is at least partially located between the inner wall of the housing and the second layer; and

a passive wireless measuring apparatus embedded into the second layer of the housing, wherein only in the case when the conductive plug is inserted into the first portion, a surface of the passive wireless measuring apparatus is coupled to the conductive plug by a thermal conductive material disposed over the passive wireless measuring apparatus;

a first antenna; and

a reader coupled to the first antenna, wherein the reader is configured to provide wireless radio frequency energy to power the passive wireless measuring apparatus in the power cable connector and receiving temperature data via the first antenna.

19. An electrical system, comprising:

a power cable connector comprising;

a housing comprising a first portion adapted to contain a conductive plug when inserted therethrough;

a first layer arranged on at least a part of an inner wall of the housing;

a second layer arranged on the first layer so that the first layer is at least partially located between the inner wall of the housing and the second layer; and

a passive wireless measuring apparatus embedded into the second layer of the housing, wherein only in the case when the conductive plug is inserted into the first portion, a surface of the passive wireless measuring apparatus is coupled to the conductive plug by a thermal conductive material disposed over the passive wireless measuring apparatus, the thermal conductive material being selected from a group consisting of EPDM rubber, silicone rubber, acrylic resin, epoxy resin and combination thereof, the passive wireless measuring apparatus comprising a radio frequency identification (RFID) tag;

a first antenna; and

a reader coupled to the first antenna, wherein the reader is configured to provide wireless radio frequency energy to power the passive wireless measuring apparatus in the power cable connector and receiving temperature data via the first antenna.