Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1981-05-20
1983-12-06
Krawczewicz, Stanley T.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
324 60C, 324 57R, G01R 3102
Patent
active
044196210
ABSTRACT:
A system for monitoring the capacitor batteries of a three-phase filter circuit. Each capacitor battery is formed of a plurality of parallel legs each having a plurality of sectional capacitors which are connected in series with fuses. Adjacent ones of the sectional capacitors are coupled to one another. In a three-phase system, three capacitor batteries are coupled to one another in a Y-circuit configuration, the Y-circuit node being coupled to a reference potential, illustratively ground. The magnitude and phase of the fundamental frequency component of the current flowing from the Y-circuit node to the reference potential is monitored, variations therein being evaluated to identify defective sectional capacitors. Only variations in the Y-circuit node current which occur rapidly will trigger fault signals, thereby preventing false indications resulting from variations in temperature.
REFERENCES:
patent: 3466538 (1969-09-01), Becker et al.
patent: 3832631 (1974-08-01), Koga et al.
patent: 4243933 (1981-01-01), Rollman
Becker Michael
Fendt Alfons
Povh Dusan
Renz Klaus
Schuch Gerhard
Krawczewicz Stanley T.
Siemens Aktiengesellschaft
LandOfFree
Monitoring system for the capacitor batteries of a three-phase f does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Monitoring system for the capacitor batteries of a three-phase f, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Monitoring system for the capacitor batteries of a three-phase f will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2031730