Electricity: measuring and testing – Conductor identification or location – Inaccessible
Patent
1978-03-03
1980-01-15
Krawczewicz, Stanley T.
Electricity: measuring and testing
Conductor identification or location
Inaccessible
324127, G01R 2726
Patent
active
041841123
ABSTRACT:
Capacitor testing apparatus comprises a plurality of individual coils of differing numbers of turns forming a toroid peritting use of a conventional tong-type alternating current ammeter to measure the alternating current flowing through a selected coil and the capacitor under test. The toroid is supported on and external to a box which contains the coil terminals and is made in a variety of shapes and sizes as the need demands. Mounted within the box is a switch associated wth each of the coils providing a plurality of electrical circuits between an alternating current power source and capacitor test leads to which the capacitor under test is connected. The capacity value of the capacitor is determined by energizing the capacitor through one of the circuits, noting the ammeter reading in amperes and multiplying the reading by the multiplier designating the selected coil's switch.
REFERENCES:
patent: 1906466 (1933-05-01), Haskins
patent: 2922110 (1960-01-01), Miller
patent: 3243705 (1966-03-01), Chenoweth
patent: 4004221 (1977-01-01), Wilson
Farley Eugene D.
Krawczewicz Stanley T.
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