Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – With rotor
Patent
1979-11-29
1982-06-08
Karlsen, Ernest F.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
With rotor
324 51, 324140R, 340648, G01R 3102, G01R 3106, G08B 2100
Patent
active
043341896
ABSTRACT:
An operation supervisory apparatus of a canned motor comprising a first detection device for detecting mechanically abnormal operation and electrically abnormal operation of a canned motor a second detection device for detecting the rotating direction of the canned motor, a combining circuit combining an output signal from the first detection and second detection devices and taking out the greater output signal of the two, and an indicator displaying an output signal from the combining circuit. The output signal of the second detection device at the time of reverse rotation of the canned motor being set to a value greater than the output signal thereof at the time of normal rotation and than the output signal of the first detection device within the range of normal operation of the canned motor. The first detection device is constructed by disposing even-numbered detection coils in a stator core of a radial air gap type canned motor to space each other by a polar pitch or integer times the polar pitch and electrically connected in series with each other so that their fundamental wave components offset each other.
REFERENCES:
patent: 3458812 (1969-07-01), Krussmann et al.
patent: 4001689 (1977-01-01), Williams et al.
patent: 4211973 (1980-07-01), Sato et al.
Karlsen Ernest F.
Nilles James E.
LandOfFree
Operation supervisory apparatus of canned motor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Operation supervisory apparatus of canned motor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Operation supervisory apparatus of canned motor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-554831