Energy metering for a building

Patent metadata

Field	Value
Publication number	US-11293955-B2
Application number	US-201816214941-A
Country	US
Kind code	B2
Filing date	Dec 10, 2018
Priority date	Dec 14, 2017
Publication date	Apr 5, 2022
Grant date	Apr 5, 2022

Abstract

A system for energy metering for a building, such as a data center.

First claim

What is claimed is:

1. A current monitoring system comprising:
(a) a board that includes a first connector;
(b) a first support including a plurality of current sensors interconnected to said first support suitable to sense changing current of a respective conductor to a load;
(c) a first cable electrically interconnecting said first connector and said plurality of current sensors;
(d) said first connector suitable for receiving sensor data from said first cable representative of current levels of said respective conductors of said plurality of current sensors;
(e) a processor interconnected with said first connector associating a plurality of said current levels with phase A based upon similarities of said plurality of said current levels;
(f) said processor interconnected with said first connector associating another plurality of said current levels with phase B based upon similarities of said plurality of said current levels;
(g) said processor interconnected with said first connector associating yet another plurality of said current levels with phase C based upon similarities of said plurality of said current levels, where said current levels associated with said phase A, said phase B, and said phase C are all associated with only one of said phase A, said phase B, and said phase C.

2. The current monitoring system of claim 1 is free from being directly sensing a voltage associated with said respective conductors to said load.

3. The current monitoring system of claim 2 is free from being directly sensing a current level of a main conductor that provides current to each of a plurality of said current sensors.

4. The current monitoring system of claim 1 is free from being directly sensing a current level of a main conductor that provides current to each of a plurality of said current sensors.

5. The current monitoring system of claim 1 wherein a set of three current sensors are grouped together for a particular load based upon said association with said phase A, said phase B, and said phase C.

6. The current monitoring system of claim 5 wherein said set of three current sensors are further based upon a proximity to one another.

7. The current monitoring system of claim 1 wherein a plurality of sets of three current sensors are grouped together for a respective particular loads based upon said association with said phase A, said phase B, and said phase C.

8. The current monitoring system of claim 7 wherein each of said plurality of sets associated with said respective particular load are compared against a mapping of said current monitoring system to determine if they are consistent.

9. The current monitoring system of claim 8 wherein any inconsistencies in comparison against said mapping are identified.

10. The current monitoring system of claim 8 wherein said mapping is modified based upon said comparing.

11. The current monitoring system of claim 1 wherein said phase A is assigned based upon the most prevalent of said plurality of current sensors.

12. The current monitoring system of claim 11 wherein said phase B is assigned based upon the next most prevalent of said plurality of current sensors.

13. The current monitoring system of claim 12 wherein said phase C is assigned based upon the least prevalent of said plurality of current sensors.

14. The current monitoring system of claim 1 wherein a set of three current sensors are grouped together for a particular load based upon said association with said phase A, said phase B, and said phase C and their ordered arrangement with respect to one another.

15. A method for monitoring current by a current monitoring system comprising the steps of:
(a) said current monitoring system receiving sensor data representative of current levels from a plurality of current sensors interconnected to a first support suitable to sense changing current of a respective conductor to a load;
(b) said current monitoring system associating a plurality of said current levels with phase A based upon similarities of said plurality of said current levels without regard to sensing a voltage level of any of said respective conductors to said load;
(c) said current monitoring system associating another plurality of said current levels with phase B based upon similarities of said plurality of said current levels without regard to sensing said voltage level of any of said respective conductors to said load;
(d) said current monitoring system associating yet another plurality of said current levels with phase C based upon similarities of said plurality of said current levels without regard to sensing said voltage level of any of said respective conductors to said load, where said current levels associated with said phase A, said phase B, and said phase C are all associated with only one of said phase A, said phase B, and said phase C.

16. The method for monitoring current of claim 15 is free from directly sensing a voltage associated with said respective conductors to said load.

17. The method for monitoring current of claim 16 is free from being directly sensing a current level of a main conductor that provides current to each of a plurality of said current sensors.

18. The method for monitoring current of claim 15 is free from being directly sensing a current level of a main conductor that provides current to each of a plurality of said current sensors.

19. The method for monitoring current of claim 15 wherein a set of three current sensors are grouped together for a particular load based upon said association with said phase A, said phase B, and said phase C.

20. The method for monitoring current of claim 19 wherein said set of three current sensors are further based upon a proximity to one another.

21. The method for monitoring current of claim 15 wherein a plurality of sets of three current sensors are grouped together for a respective particular loads based upon said association with said phase A, said phase B, and said phase C.

22. The method for monitoring current of claim 15 wherein said phase A is assigned based upon the most prevalent of said plurality of current sensors.

23. The method for monitoring current of claim 22 wherein said phase B is assigned based upon the next most prevalent of said plurality of current sensors.

24. The method for monitoring current of claim 23 wherein said phase B is assigned based upon the least prevalent of said plurality of current sensors.

25. The method for monitoring current of claim 15 wherein a set of three current sensors are grouped together for a particular load based upon said association with said phase A, said phase B, and said phase C and their ordered arrangement with respect to one another.

Assignees

• Veris Industries Llc

Inventors

• Cook Martin

Classifications

• G01R29/18

  Indicating phase sequence; Indicating synchronism · CPC title

• G01R19/2513 Primary

  Arrangements for monitoring electric power systems, e.g. power lines or loads; Logging · CPC title

• G01R21/133

  by using digital technique · CPC title

• G01R21/002

  Measuring real component · CPC title

• G01R21/003

  Measuring reactive component · CPC title