Power monitoring system that determines frequency and phase relationships

Patent metadata

Field	Value
Publication number	US-9329659-B2
Application number	US-201414156222-A
Country	US
Kind code	B2
Filing date	Jan 15, 2014
Priority date	Feb 6, 2013
Publication date	May 3, 2016
Grant date	May 3, 2016

Abstract

A power monitoring system includes a plurality of current sensors suitable to sense respective changing electrical current within a respective conductor to a respective load and a conductor sensing a respective voltage potential provided to the respective load.

First claim

I claim:

1. A power monitoring system comprising:
(a) a plurality of current sensors suitable to sense respective changing electrical current within a respective conductor to at least one load;
(b) at least one conductor sensing a respective voltage potential provided to said at least one load;
(c) a power monitor that determines a power of said at least one load based upon a signal from at least one of said current sensors and a signal from at least one said conductor;
(d) said power monitor receiving at a single input to a microprocessor a signal including data simultaneously representative of at least one of (i) a signal from a first one of said current sensors and a second one of said current sensors, and (ii) a signal from a first one of said at least one conductor and a signal from a second one of said at least one conductor;
(e) said power monitor determining at least one of (i) a frequency of at least one of said signals from said current sensors, (ii) a frequency of at least one of said signals from said conductors, (iii) a phase relationship between at least two of said signals from said current sensors, (ii) a phase relationship between at least two signals from said conductors.

2. The power monitoring system of claim 1 wherein said power monitor determining said frequency of said at least one of said signals from said current sensors.

3. The power monitoring system of claim 1 wherein said power monitor determining said frequency of said at least one of said signals from said conductors.

4. The power monitoring system of claim 1 wherein said power monitor determining said phase relationship between said at least two of said signals from said current sensors.

5. The power monitoring system of claim 1 wherein said power monitor determining said phase relationship between said at least two signals from said conductors.

6. The power monitoring system of claim 1 wherein said power monitor said determines said power for a three phase said load, wherein said power monitor has no more than three said current sensors.

7. The power monitoring system of claim 1 wherein said power monitor said determines said power for a pair of single phase loads, wherein said power monitor has no more than three said current sensors.

8. The power monitoring system of claim 1 wherein said power monitor said determines said power for a single phase load and a two phase load, wherein said power monitor has no more than three said current sensors.

9. The power monitoring system of claim 4 wherein said power monitor determining said phase relationship between said at least two signals from said conductors.

10. The power monitoring system of claim 4 wherein said power monitor said determines said power for a three phase said load, wherein said power monitor has no more than three said current sensors.

11. The power monitoring system of claim 4 wherein said power monitor said determines said power for a pair of single phase loads, wherein said power monitor has no more than three said current sensors.

12. The power monitoring system of claim 4 wherein said power monitor said determines said power for a single phase load and a two phase load, wherein said power monitor has no more than three said current sensors.

13. The power monitoring system of claim 2 wherein said power monitor determining said phase relationship between said at least two signals from said conductors.

14. The power monitoring system of claim 2 wherein said power monitor said determines said power for a three phase said load, wherein said power monitor has no more than three said current sensors.

15. The power monitoring system of claim 2 wherein said power monitor said determines said power for a pair of single phase loads, wherein said power monitor has no more than three said current sensors.

16. The power monitoring system of claim 2 wherein said power monitor said determines said power for a single phase load and a two phase load, wherein said power monitor has no more than three said current sensors.

17. The power monitoring system of claim 1 wherein said signal to said single input to said microprocessor is a series of rectangular pulses.

18. The power monitoring system of claim 1 wherein said signal to said single input to said microprocessor is a series of alternating signals.

19. The power monitoring system of claim 1 wherein said power monitor determines said power for said at least one load based upon said signal from at least one of said current sensors provided to said microprocessor and said signal from at least one said conductor provided to said microprocessor, wherein said signal from said at least one of said current sensors is simultaneously provided to multiple inputs of said microprocessor with multiple different gains.

20. A power monitoring system comprising:
(a) a plurality of current sensors suitable to sense respective changing electrical current within a respective conductor to at least one load;
(b) at least one conductor sensing a respective voltage potential provided to said at least one load;
(c) a power monitor that determines a power of said at least one load based upon a signal from at least one of said current sensors and a signal from at least one said conductor;
(d) said power monitor determines said power for said at least one load based upon said signal from at least one of said current sensors provided to a microprocessor and said signal from at least one said conductor provided to said microprocessor, wherein said signal from said at least one of said current sensors is simultaneously provided to multiple inputs of said microprocessor with multiple different gains.

Assignees

• Veris Ind Inc
• Veris Industries Llc

Inventors

• Cook Martin

Classifications

• G06F1/3206 Primary

  Monitoring of events, devices or parameters that trigger a change in power modality · CPC title

• G01R21/133 Primary

  by using digital technique · CPC title