Particle extraction system for an interrupter

Patent metadata

Field	Value
Publication number	US-10910178-B2
Application number	US-201916599750-A
Country	US
Kind code	B2
Filing date	Oct 11, 2019
Priority date	Aug 31, 2015
Publication date	Feb 2, 2021
Grant date	Feb 2, 2021

Abstract

A particle extraction system for an electrical interrupter is disclosed in the present application. The particle extraction system includes a support bay configured to hold an electrical interrupter in position during a particle extraction event. An actuator system is operable for cycling the interrupter to dislodge and release foreign particles internal to the interrupter. A fluid source and pumping system is in fluid communication with at least one internal flowpath within the interrupter to entrain and transport the released particle from the interrupter. A vacuum slot is operable for receiving a fluid flow with entrained particles and transporting the particles to a particle capture device.

First claim

What is claimed is:

1. A particle extraction system comprising:
a support bay configured to hold an electrical interrupter;
an actuator system operable for cycling the electrical interrupter to release particles;
a fluid source in fluid communication with internal flowpaths formed within the electrical interrupter, wherein flowing fluid from the fluid source is operable to entrain released particles therewith; and
a vacuum slot operable for receiving the flowing fluid and the entrained particles egressed from the electrical interrupter.

2. The particle extraction system of claim 1 , wherein the vacuum slot is formed into the support bay.

3. The particle extraction system of claim 1 , further comprising a plurality of vacuum slots that include the vacuum slot.

4. The particle extraction system of claim 3 , wherein the plurality of vacuum slots are formed into the support bay.

5. The particle extraction system of claim 1 , further comprising a vibration actuator that is configured to apply a vibration to the electrical interrupter to cause particles to be removed from the electrical interrupter.

6. The particle extraction system of claim 1 , further comprising a particle counter that is configured to determine an amount of the entrained particles egressed from the interrupter,
wherein controlling a duration of break-in testing is based on the amount of the entrained particles, a removal rate of the entrained particles and/or a reduction in the removal rate of the entrained particles.

7. A method comprising:
cycling a component in an electrical interrupter between first and second positions;
dislodging and releasing particles within the electrical interrupter during the cycling;
entraining the released particles in a flowing fluid;
discharging the flowing fluid and entrained particles from the electrical interrupter via a vacuum slot formed in a support bay;
separating discharged particles from the flowing fluid; and
capturing the discharged particles.

8. The method of claim 7 , wherein the cycling includes operating an electronic actuator.

9. The method of claim 8 , wherein the cycling includes rotating a shaft connected to the electronic actuator.

10. The method of claim 9 , wherein the cycling includes moving a reciprocating rod in response to rotating the shaft.

11. The method of claim 7 further comprising controlling the cycling and capturing with an electronic controller.

12. The method of claim 7 , wherein the entraining includes flowing fluid through the electrical interrupter and a particle extraction system in fluid communication with the support bay.

13. The method of claim 7 , wherein the separating and capturing includes at least one of a filter device and an inertial device.

14. The method of claim 7 wherein the cycling includes moving a plurality of conducting elements within the electrical interrupter.

15. A particle extraction system, wherein a support bay is configured to hold a plurality of electrical interrupters that includes an electrical interrupter,
wherein an actuator system is operable to cycle the plurality of electrical interrupters to release particles,
wherein a fluid source is in fluid communication with internal flowpaths formed within the plurality of electrical interrupters, wherein flowing fluid from the fluid source is operable to entrain released particles therewith, and

wherein a vacuum slot is operable to receive the flowing fluid and entrained particles egressed from the plurality of electrical interrupters.

Assignees

• Abb Power Grids Switzerland Ag

Inventors

• Daehler Christian
• Lange Jeffrey H
• Licastro Mark

Classifications

• H01H33/57

  Recuperation of liquid or gas · CPC title

• H01H11/00

  Apparatus or processes specially adapted for the manufacture of electric switches (processes specially adapted for manufacture of rectilinearly movable switches having a plurality of operating members associated with different sets of contacts, e.g. keyboards, H01H13/88) · CPC title

• H01H33/56

  Gas reservoirs · CPC title

• H01H33/565 Primary

  Gas-tight sealings for moving parts penetrating into the reservoir · CPC title

• H01H33/30

  using fluid actuator · CPC title