Submersible split core current sensor and housing

Patent metadata

Field	Value
Publication number	US-10935575-B2
Application number	US-201715799559-A
Country	US
Kind code	B2
Filing date	Oct 31, 2017
Priority date	Oct 31, 2017
Publication date	Mar 2, 2021
Grant date	Mar 2, 2021

Abstract

A submersible current sensor for sensing a current in a submerged conductor includes: a split core current transformer constructed to generate an output representative of the current carried by the conductor, the split core having a first core member, a first winding disposed about at least a portion of the first core member; a second core member; and a second winding disposed about at least a portion of the second core member; and a housing, the housing including: a first housing member constructed to house the first core member and the first winding; and a second housing member constructed to house the second core member and the second winding.

First claim

What is claimed is:

1. A submersible current sensor for sensing a current in a submerged conductor, comprising:
a split core current transformer constructed to generate an output representative of the current carried by the conductor, the split core current transformer having a first core member, a first winding disposed about at least a portion of the first core member; a second core member; and a second winding disposed about at least a portion of the second core member; and
a preformed housing, the housing including:
a first housing member constructed to house the first core member and the first winding; and
a second housing member constructed to house the second core member and the second winding; and

an electrical cable in communication with the first winding and/or the second winding, wherein the housing includes a socket and the cable is disposed within and sealed within the socket.

2. The submersible current sensor of claim 1 , further comprising a waterproof resin, wherein the first core member and the first winding are together encapsulated by the waterproof resin; and wherein the second core member and the second winding are together encapsulated by the waterproof resin.

3. The submersible current sensor of claim 2 , wherein the first core member and the first winding are hermetically sealed within the first housing member with the waterproof resin; and wherein the second core member and the second winding are hermetically sealed within the second housing member with the waterproof resin.

4. The submersible current sensor of claim 1 , further comprising a hinge coupling the first housing member to the second housing member.

5. The submersible current sensor of claim 4 , wherein the hinge is disposed on a first side of the housing, and couples a first end of the first housing member to a first end of the second housing member, further comprising a latch disposed on a second side of the housing opposite the first side and constructed to releasably secure a second end of the first housing member to a second end of the second housing member.

6. The submersible current sensor of claim 5 , wherein the latch includes a first latch member integral with a second end of the first housing member opposite the first end of the first housing member; and a second latch member integral with a second end of the second housing member opposite the first end of the second housing member, wherein the first latch member and the second latch member are constructed to releasably latch the first latch member and the second latch member together.

7. The submersible current sensor of claim 1 , further comprising a latch constructed to releasably secure the second housing member to the first housing member.

8. The submersible current sensor of claim 7 , wherein the latch is a cantilever snap lock mechanism.

9. The submersible current sensor of claim 1 , wherein the housing is a toroid.

10. The submersible current sensor of claim 1 , wherein the housing is plastic, and includes an integral hinge and an integral latch.

11. The submersible current sensor of claim 1 , wherein a first portion of the cable is sealed within the first housing member and a second portion of the cable is sealed within the second housing member.

12. A submersible current sensor for sensing a current in a submerged conductor, comprising:
a split core current transformer constructed to generate an output representative of the current carried by the conductor, the split core current transformer including:
a first core member and a first winding disposed about at least a portion of the first core member;
a second core member and a second winding disposed about at least a portion of the second core member;
a housing including:
a first housing member constructed to house the first core member and the first winding;
a second housing member constructed to house the second core member and the second winding; and

an electrical cable in communication with at least one of the first winding and the second winding, wherein the housing includes a socket and the cable is disposed within and sealed within the socket.

13. The submersible current sensor of claim 12 , wherein the housing made of a polymer.

14. The submersible current sensor of claim 12 , wherein the cable electrically couples the first winding and the second winding.

15. The submersible current sensor of claim 12 , wherein the cable is sealed within the socket with a waterproof resin.

16. The submersible current sensor of claim 15 , wherein:
the first core member and the first winding are together encapsulated by the waterproof resin; and
the second core member and the second winding are together encapsulated by the waterproof resin.

17. The submersible current sensor of claim 16 , wherein:
the first core member and the first winding are hermetically sealed within the first housing member with the waterproof resin; and
wherein the second core member and the second winding are hermetically sealed within the second housing member with the waterproof resin.

18. The submersible current sensor of claim 12 , wherein a first portion of the cable is sealed within the first housing member and a second portion of the cable is sealed within the second housing member.

19. A submersible current sensor for sensing a current in a submerged conductor, comprising:
a split core current transformer constructed to generate an output representative of the current carried by the conductor, the split core current transformer including:
a first laminated core member and a first winding disposed about at least a portion of the first core member, wherein the first core member and the first winding are encapsulated together within a waterproof resin;
a second laminated core member and a second winding disposed about at least a portion of the second core member, wherein the second core member and the second winding are encapsulated together within a waterproof resin; a polymer housing including:
a first polymer housing member constructed to house and hermetically seal the encapsulated first core member and the first winding; and
a second polymer housing member constructed to house and hermetically seal the encapsulated second core member and the second winding:
an electrical cable in communication with the first winding and/or the second winding, wherein the housing includes a socket and the cable is disposed within and sealed within the socket.

Assignees

• Abb Schweiz Ag

Inventors

• Shaw Steven A
• Siddharth Vivek
• Raschka David
• Chorzepa Jaroslaw Wojciech
• Singh Bandeep

Classifications

• G01R15/186 Primary

  using current transformers with a core consisting of two or more parts, e.g. clamp-on type (G01R15/142 - G01R15/16 take precedence; tong testers G01R1/22) · CPC title