Coil with Shunt Impedance for Arc Suppression using an Alternating Current Power Source or a Direct Current Power Source

• US 20160329704A1
• Filed: 07/21/2016
• Published: 11/10/2016
• Est. Priority Date: 04/30/2014
• Status: Active Application

• Current Assignee: Archer, John Richard
• Original Assignee: Archer, John Richard
• Inventors: Archer, John Richard
• Application Number:
  US15/216,540
• Publication Number:
  US 20160329704A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H01H 9/42 Impedances connected with contacts
• CPC Class Codes: H02H 9/001 limiting speed of change of electric quantities, e.g. soft switching on or off progressive control of electronic switches for eliminating interferences H03K17/16
• CPC Class Codes: H02H 9/08 Limitation or suppression of earth fault currents, e.g. Petersen coil

Abstract

A device used for preventing arcs and initial power line current increase in an electrical wiring circuit in an electric circuit contains an output source terminal, an input load terminal, a suppressor coil, and a shunt circuit. The output source circuit can be either an alternating power source or a direct current power source. The suppressor coil is electrically connected in between the output power source and the input load terminal. In order to prevent arc formation and shape the current passing through the suppressor coil, the shunt circuit is electrically connected in parallel to the suppressor coil. The shunt circuit includes at least one resistor. The suppressor coil can use either a permeable coil or an air core coil. The design of the device allows a circuit breaker to be used in series without affecting the normal operation. Moreover, the device does not require resetting after use.

Claims

1. A device for arc suppression using an alternating current power source or a direct current power source comprises:

an output source terminal;

an input load terminal;

a suppressor coil;

a shunt circuit;

the suppressor coil being electrically connected in series between the output source terminal and the input load terminal;

the shunt circuit being electrically connected in series between the output source terminal and the input load terminal; and

the suppressor coil and the shunt circuit being electrically connected in parallel to each other.

2. The device for arc suppression using an alternating current power source or a direct current power source as claimed in claim 1, wherein a fault current travels from the output source terminal to the input load terminal, and wherein the output source terminal, the suppressor coil, the input load terminal, and the shunt circuit are configured to reroute a portion of the fault current from travelling through the suppressor coil to alternatively travelling through the shunt circuit.

3. The device for arc suppression using an alternating current power source or a direct current power source as claimed in claim 2, wherein the configuration between the output source terminal, the suppressor coil, the input load terminal, and the shunt circuit manages an initial rise in current as a regular current jumps to the fault current.

4. The device for arc suppression using an alternating current power source or a direct current power source as claimed in claim 1 comprises:

an at least one power line;

the suppressor coil being electrically connected in series with the input load terminal through the power line; and

the shunt circuit being electrically connected in series with the input load terminal through the power line.

5. The device for arc suppression using an alternating current power source or a direct current power source as claimed in claim 3, wherein a portion of the power line is a portion of an aircraft body.

6. The device for arc suppression using an alternating current power source or a direct current power source as claimed in claim 1, wherein the shunt circuit comprises at least one resistor.

7. The device for arc suppression as claimed in claim 1, wherein the output source terminal is for an alternating current power source.

8. The device for arc suppression as claimed in claim 1, wherein the output source terminal is for a direct current power source.

9. The device for arc suppression using an alternating current power source or a direct current power source as claimed in claim 1 comprises:

an enclosure;

the suppressor coil and the shunt circuit being mounted within the enclosure;

the output source terminal being positioned into the enclosure; and

the input load terminal being positioned into the enclosure.

10. The device for arc suppression as claimed in claim 1, wherein the suppressor coil comprises a permeable core.

11. The device for arc suppression as claimed in claim 1, wherein the suppressor coil is an air cored coil.

12. The device for arc suppression as claimed in claim 1, wherein the suppressor coil is configured to generate electrical inductance and to be electrically resistive.