Automatic transfer switch (ATS) bypass switch

Patent metadata

Field	Value
Publication number	US-10630103-B2
Application number	US-201615206917-A
Country	US
Kind code	B2
Filing date	Jul 11, 2016
Priority date	Dec 19, 2013
Publication date	Apr 21, 2020
Grant date	Apr 21, 2020

Abstract

An ATS bypass switch includes a draw-out ATS switch; a bypass switch; and a processor structured to automatically control both of the draw-out ATS switch and the bypass switch.

First claim

What is claimed is:

1. An ATS bypass switch assembly for connecting and disconnecting first and second power sources to and from a load, the ATS bypass switch assembly comprising:
a draw-out ATS switch, wherein said draw out ATS switch includes an electrical switching apparatus and wherein said draw-out ATS switch is movable among a locked in neutral state, an isolated state and a removed state, wherein in each of said locked in neutral state, said isolated state and said removed state said draw-out ATS switch is electrically disconnected from the first and second power sources;
a bypass switch; and
a processor configured to: (i) automatically control said draw-out ATS switch, (ii) monitor a present state of said draw-out ATS switch, and (iii) responsive to determining that said present state of said draw-out ATS switch is one of said locked in neutral state, said isolated state, or said removed state, enable automatic control of said bypass switch by said processor by changing a mode of operation of said bypass switch from operation as just a manual switching device to operation as an automatic switching device under control of said processor.

2. The ATS bypass switch assembly of claim 1 wherein said electrical switching apparatus is two circuit breaker or a contactor, and wherein said bypass switch includes a second electrical switching apparatus comprising two second circuit breakers or a second contactor.

3. The ATS bypass switch assembly of claim 1 wherein said processor is further configured to, when said automatic control of said bypass switch is enabled, automatically control said bypass switch in an in-phase transition mode.

4. The ATS bypass switch assembly of claim 1 wherein said processor is further configured to, when said automatic control of said bypass switch is enabled, automatically control said bypass switch in a load voltage decay mode.

5. The ATS bypass switch assembly of claim 1 wherein said processor is further configured too when said automatic control of said bypass switch is enabled, automatically control said bypass switch in a closed/in-phase transition default to time delay neutral mode.

6. The ATS bypass switch assembly of claim 1 wherein said processor is further configured to, when said automatic control of said bypass switch is enabled, automatically control said bypass switch in a closed/in-phase transition default to load voltage decay mode.

7. The ATS bypass switch assembly of claim 1 wherein said processor is further configured to, when said automatic control of said bypass switch is enabled, automatically control said bypass switch in a closed transition default to time delay neutral mode.

8. The ATS bypass switch assembly of claim 1 wherein said processor is further configured to, when said automatic control of said bypass switch is enabled, automatically control said bypass switch in a closed transition default to load voltage decay mode.

9. The ATS bypass switch assembly of claim 1 wherein said processor is further configured to, when said automatic control of said bypass switch is enabled, automatically control said bypass switch in an in-phase default to time delay neutral mode.

10. The ATS bypass switch assembly of claim 1 wherein said processor is further configured to, when said automatic control of said bypass switch is enabled, automatically control said bypass switch in an in-phase default to load voltage decay mode.

11. The ATS bypass switch assembly of claim 1 wherein said ATS bypass switch is structured to generate a plurality of electrical signals which indicate said present state of said draw-out ATS switch, and wherein said processor is further configured to input said plurality of electrical signals and use said plurality of electrical signals to monitor said present state of said draw-out ATS switch.

12. An ATS bypass switch assembly for connecting and disconnecting first and second power sources to and from a load, the ATS bypass switch assembly comprising:
a first switch;
a second switch; and
a controller configured to: (i) automatically control said first switch, and enable automatic control of said second switch after determining that said first switch is electrically disconnected from the first and second power sources by changing a mode of operation of said second switch from operation as just a manual switching device to operation as an automatic switching device under control of said controller.

13. The ATS bypass switch assembly of claim 12 wherein said first switch includes a first electrical switching apparatus comprising two circuit breakers or a contactor, and wherein said second switch includes a second electrical switching apparatus comprising two second circuit breakers or a second contactor.

14. The ATS bypass switch assembly of claim 12 wherein said controller includes a processor that is further configured to, when said automatic control of said second switch is enabled, automatically control said second switch in an in-phase transition mode.

15. The ATS bypass switch assembly of claim 12 wherein said controller includes a processor that is further configured to, when said automatic control of said second switch is enabled, automatically control said second switch in a load voltage decay mode.

16. The ATS bypass switch assembly of claim 12 wherein said controller includes a processor that is further configured to, when said automatic control of said second switch is enabled, automatically control said second switch in a closed/in-phase transition default to time delay neutral mode.

17. The ATS bypass switch assembly of claim 12 wherein said controller includes a processor that is further configured to, when said automatic control of said second switch is enabled, automatically control said second switch in a closed/in-phase transition default to load voltage decay anode.

18. The ATS bypass switch assembly of claim 12 wherein said controller includes a processor that is further configured to, when said automatic control of said second switch is enabled, automatically control said second switch in a closed transition default to time delay neutral mode.

19. The ATS bypass switch assembly of claim 12 wherein said controller includes a processor that is further configured to, when said automatic control of said second switch is enabled, automatically control said second switch in a closed transition default to load voltage decay mode.

20. The ATS bypass switch assembly of claim 12 wherein said controller includes a processor that is further configured to, when said automatic control of said second switch is enabled, automatically control said second switch in an in-phase default to time delay neutral mode or an in-phase default to load voltage decay mode.

21. The ATS bypass switch assembly of claim 12 wherein the first switch is a ATS switch and the second switch is a bypass switch.

22. The ATS bypass switch assembly of claim 21 wherein at least one the ATS switch and the bypass switch is a draw-out switch.

23. A method of controlling an ATS bypass switch assembly that includes a first switch, a second switch and a controller, wherein said first switch includes an electrical switching apparatus structured to electrically connect a load to a first power source, electrically connect the load to a second power source, or electrically disconnect the load from the first and second power sources, the method comprising:
enabling automatic control of said first switch by said controller;

Assignees

• Eaton Corp
• Eaton Intelligent Power Ltd

Inventors

• Tomassi Mark Steven
• Williams Scott Morgan

Classifications

• H01H2300/018

  Application transfer; between utility and emergency power supply · CPC title

• H01H9/26

  for interlocking two or more switches ({H01H13/568 takes precedence;} by a detachable member H01H9/28 {; for electromagnetic relays H01H50/323}) · CPC title

• H02J9/061 Primary

  for DC powered loads · CPC title

• H02J9/06 Primary

  with automatic change-over {, e.g. UPS systems} · CPC title

• Y10T307/615

  Cross-Sectional Technologies · mapped topic