Passive electrical component for safety system shutdown using Faraday's law

Patent metadata

Field	Value
Publication number	US-10755825-B2
Application number	US-201816176716-A
Country	US
Kind code	B2
Filing date	Oct 31, 2018
Priority date	Oct 31, 2018
Publication date	Aug 25, 2020
Grant date	Aug 25, 2020

Abstract

An electro-technical device includes a first coil connected to a first sensor for receiving a current therefrom representative of a sensed condition, the first coil being anchored at first and second ends. A second coil is connected to a second sensor for receiving a current therefrom representative of a sensed condition, the second coil being anchored at first and second ends and being adjacent to the first coil. When the first and second coils receive an increased current from the first and second sensors, the first and second coils each create a magnetic flux that repel one another in order to cause at least one of the coils to break so that a shutdown signal can be sent.

First claim

The invention claimed is:

1. An electro-technical device, comprising:
a first coil connected to a first sensor for receiving a current therefrom representative a sensed condition, the first coil being physically restrained at first and second ends;
a second coil connected to a second sensor for receiving a current therefrom representative of a sensed condition, the second coil being physically restrained at first and second ends and having the first end adjacent to the first end of the first coil;
wherein when the first and second coils receive an increased current from the first and second sensors, the first and second coils each create a magnetic flux that repel one another in order to cause at least one of the coils to break.

2. The electro-technical device according to claim 1 , wherein the first coil is connected to the first sensor at the second end and is connected to a first output line at the first end.

3. The electro-technical device according to claim 2 , wherein the second coil is connected to the second sensor at the second end and is connected to a second output line at the first end.

4. The electro-technical device according to claim 1 , wherein the first and second coils are physically restrained at the first and second ends by first and second plates, respectively.

5. The electro-technical device according to claim 1 , wherein the first, second, third and fourth coils are physically restrained at the first and second ends by first and second plates, respectively.

6. An electro-technical device, comprising:
a first coil connected to a first sensor for receiving a current therefrom representative a sensed condition, the first coil being physically restrained at first and second ends;
a second coil connected to a second sensor for receiving a current therefrom representative of a sensed condition, the second coil being physically restrained at first and second ends and being adjacent to the first coil;
a third coil connected to a third sensor for receiving a current therefrom representative of a sensed condition, the third coil being physically restrained at first and second ends and being adjacent to the first and second coils;
a fourth coil connected to a fourth sensor for receiving a current therefrom representative of a sensed condition, the fourth coil being physically restrained at first and second ends and being adjacent to the first, second and third coils;
wherein when at least two of the first, second, third and fourth coils receive an increased current from at two of the first, second, third and fourth sensors, the at least two of the first, second, third and fourth coils each create a magnetic flux that repel one another in order to cause at least one of the coils to break.

7. The electro-technical device according to claim 6 , wherein the first coil is connected to the first sensor at the second end and is connected to a first output line at the first end.

8. The electro-technical device according to claim 7 , wherein the second coil is connected to the second sensor at the second end and is connected to a second output line at the first end.

9. The electro-technical device according to claim 8 , wherein the third coil is connected to the third sensor at the second end and is connected to a third output line at the first end.

10. The electro-technical device according to claim 9 , wherein the fourth coil is connected to the fourth sensor at the second end and is connected to a fourth output line at the first end.

11. A method of making an electro-technical device, comprising:
3-D printing a first coil physically restrained at first and second ends;
connecting a first sensor to the first coil for receiving a current therefrom representative a sensed condition;
3-D printing a second coil physically restrained at first and second ends and being adjacent to the first coil;
connecting a second sensor to the second coil for receiving a current therefrom representative of a sensed condition;
wherein when the first and second coils receive an increased current from the first and second sensors, the first and second coils each create a magnetic flux that repel one another in order to cause at least one of the coils to break.

12. The method according to claim 11 further comprising:
3-D printing a third coil physically restrained at first and second ends and being adjacent to the first and second coils;
connecting a third sensor to the third coil for receiving a current therefrom representative a sensed condition;
3-D printing a fourth coil physically restrained at first and second ends and being adjacent to the first, second and third coil;
connecting a fourth sensor to the fourth coil for receiving a current therefrom representative of a sensed condition.

13. The method according to claim 12 , further comprising storing data from a 3-D printing machine regarding the 3-D printing of the first, second, third and fourth coils.

Assignees

• Ge Hitachi Nuclear Energy Americas Llc

Inventors

• Loewen Eric P
• Webber David W
• Strege Seth Ryan Paul
• Pfeffer Maria E
• Pfeffer Scott L

Classifications

• Y02E30/00

  Energy generation of nuclear origin · CPC title

• G21D3/04 Primary

  Safety arrangements (emergency protection of reactor G21C9/00) · CPC title

• G21C7/36

  Control circuits · CPC title

• G21D3/06

  responsive to faults within the plant (in the reactor G21C9/00) · CPC title

• G21C9/02

  Means for effecting very rapid reduction of the reactivity factor under fault conditions, e.g. reactor fuse; {Control elements having arrangements activated in an emergency}(control elements per se G21C7/00) · CPC title