Master metering module with voltage selector

Details Master metering module with voltage selector Master metering module with voltage selector

1986-05-29

1988-03-29

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Polyphase

324 73R, 324115, 364483, G01R 1900

Patent

active

047346396

ABSTRACT:
A master metering module is taught which utilizes a programmed microprocessor and externally operated switches to alert the module as to what kind of system is being monitored thereby. For example, is the system being monitored a .DELTA.-connected electrical system or a Y-connected electrical system. This is useful in providing output indications of line-to-line voltage or line-to-neutral voltage, for example. When measuring voltages whether line-to-line or line-to-neutral one voltage value is substituted from another. A differential amplifier is utilized to do this. In one case the differential amplifier subtracts one line voltage from another line voltage, but in another case it subtracts neutral or zero ground potential from a line voltage. A switching arrangement is provided which interconnects one terminal of the differential amplifier with the neutral input terminal and with a line input terminal through appropriate conditioning of the microprocessor.

REFERENCES:
patent: 3130366 (1964-04-01), Draper
patent: 4023101 (1977-05-01), Christoffer
patent: 4623967 (1986-11-01), Naimer
patent: 4641090 (1987-02-01), Danby

Affiliated with

Also associated with

Rating

Master metering module with voltage selector does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Master metering module with voltage selector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Master metering module with voltage selector will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1090807