Software controlled interlocking pilot pin connector system

Patent metadata

Field	Value
Publication number	US-12424801-B2
Application number	US-202318227382-A
Country	US
Kind code	B2
Filing date	Jul 28, 2023
Priority date	Aug 9, 2022
Publication date	Sep 23, 2025
Grant date	Sep 23, 2025

Abstract

A power system includes a power supply, a common bus, and two or more receptacles coupled to the common bus. In addition, the power system includes two or more connectors, each connector coupled to a receptacle of the two or more receptacles. The power system further includes a protective breaker coupled to the common bus between the power supply and the receptacles, the protective breaker operated by a protective relay and a low voltage power supply. Further, the power system includes an umbilical cord, the umbilical cord passing from the low voltage power supply to the protective relay through each receptacle and each connector such that the removal of any connector from any receptacle breaks the electrical pathway between the low voltage power supply and the protective relay.

First claim

The invention claimed is:

1. A power system comprising:
a power supply,
a common bus,
two or more outlet receptacles coupled to the common bus;
two or more connectors, each connector coupled to an outlet receptacle of the two or more outlet receptacles;
a protective breaker coupled to the common bus between the power supply and the two or more outlet receptacles, the protective breaker operated by a protective relay;
a low voltage power supply; and
an umbilical cord, the umbilical cord passing from the low voltage power supply to the protective relay through each outlet receptacle and each connector such that a removal of any connector from any outlet receptacle breaks an electrical pathway between the low voltage power supply and the protective relay.

2. The power system of claim 1 , wherein power is supplied to load side equipment when the two or more connectors are connected to the two or more outlet receptacles.

3. The power supply of claim 2 , wherein the power is supplied from the common bus.

4. The power supply of claim 3 , wherein the protective relay is positioned to control a load side breaker.

5. The power supply of claim 4 , wherein when the protective relay is closed, power is supplied to the two or more outlet receptacles.

6. The power supply of claim 5 , wherein when the protective relay is open, power is not supplied to the two or more outlet receptacles.

7. The power supply of claim 5 , further comprising a captive key interlock connected to the two or more connectors.

8. The power supply of claim 7 , wherein a key is captively held in a connector key slot.

9. The power supply of claim 8 , wherein the key is adapted to be rotated and removed when the two or more connectors are connected to the two or more outlet receptacles.

10. The power supply of claim 9 , wherein the key is adapted to be inserted into a load breaker key slot, thereby allowing power to be supplied to load side equipment.

11. The power supply of claim 4 , wherein the load side breaker is key operated.

12. The power supply of claim 1 , wherein the umbilical cord is comprised of multiple segments of wiring.

13. A power system comprising:
a distributed energy resource, the distributed energy resource including an output breaker;
a switchgear, the switchgear operatively coupled to the distributed energy resource by a power cable and an interlock cable, the interlock cable in communication with the distributed energy source and the switchgear, the switchgear including an input breaker;
wherein the output breaker and the input breaker are opened and closed by turning a key or a controller associated with the output breaker may receive a command to open or close.

14. The power system of claim 13 , wherein the distributed energy resource and the switchgear each include a connector keyslot and a breaker keyslot.

15. A method comprising:
supplying a distributed energy resource, the distributed energy resource including an output breaker and a switchgear, the switchgear operatively coupled to the distributed energy resource by an interlock cable, the interlock cable in communication with the distributed energy source and the switchgear, the switchgear including an input breaker, wherein the output breaker and the input breaker may be opened and closed by turning a key, wherein the distributed energy resource and the switchgear each include a connector keyslot and a breaker keyslot;
placing the key in each connector keyslot;
connecting a power cable to the distributed energy resource and switchgear;
turning each key and removing each key from each connector keyslot;
placing each key in each breaker key slot; and
turning each key in each breaker key slot.

16. The method of claim 15 , wherein removing each key from each connector keyslot is prevented until the power cable is detected as connected.

17. The method of claim 16 , wherein after turning the each key in each breaker key slot is completed, capturing the key until the output breaker and input breaker are opened.

Assignees

• Stewart & Stevenson Llc

Inventors

• Smith Paul
• Evezic Eric
• Lambertus Adam

Classifications

• H01R13/7036 Primary

  the switch being in series with coupling part, e.g. dead coupling, explosion proof coupling · CPC title

• H02J4/00 Primary

  Circuit arrangements for mains or distribution networks not specified as AC or DC; Circuit arrangements for mains or distribution networks combining AC and DC sections or sub-networks (arrangements using intermediate DC-AC-DC conversion H02J1/002; arrangements using high-voltage DC [HVDC] links H02J3/36) · CPC title