Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Plural ranges – scales or registration rates
Patent
1996-06-26
1998-08-04
Karlsen, Ernest F.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Plural ranges, scales or registration rates
7386228, G01R 1900
Patent
active
057899142
ABSTRACT:
The present invention relates to a digital DC voltage and horse power multimeter device unitized in determining the voltage and horse power on a locomotive system. The meter is permanently mounted onboard the locomotive and is capable of instantaneous determination of the voltage reading and horse power to provide real time evaluation of the locomotive's functions. The meter is built into the voltage test panel, replacing the test receptacles, and is designed to prevent operator error in that a voltage range is not required to be set before the multimeter reads a desired voltage. The meter is capable of reading the main generator, a load shunt test millivoltage, and is capable of determining the horse power of a locomotive system. The invention is therefore a device for metering electrical energy and calculating the horse power on a locomotive system which is permanently installed which operates off the existing 74V DC accessory power and is safer due to the absence of manual range settings.
REFERENCES:
patent: 4234922 (1980-11-01), Wilde et al.
patent: 4652057 (1987-03-01), Engle et al.
patent: 5461908 (1995-10-01), Armstrong
patent: 5557198 (1996-09-01), Matthews et al.
Matthews Jack W.
Stevens William
Karlsen Ernest F.
Matthews Jack W.
Phung Anh
Schmid Steven L.
LandOfFree
Onboard digital locomotive horsepower multimeter does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Onboard digital locomotive horsepower multimeter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Onboard digital locomotive horsepower multimeter will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1180963