Ring circuit continuity tester
AssigneeInternational Business Machines Corporation
InventorJames S. TAYLOR
Life of this patent
Estimating the term…
Abstract
Apparatus and method are provided for testing continuity of a ring circuit of an electricity distribution system, the ring circuit including at least a first conductor connecting, in a ring configuration, a source of electricity to a plurality of accessories. The apparatus includes: a switch arranged to cause a break in the ring circuit at a location in the ring circuit, the break resulting in a first end and a second end of the ring circuit at the location; a detector for measuring the relative voltage between the first end and the second end of the ring circuit; and an indicator which indicates, responsive to the detector detecting a relative voltage between the first end and the second end of the ring circuit, that there is a lack of continuity in the ring circuit.
Claims20
An apparatus for testing continuity of a ring circuit of an electricity distribution system, the ring circuit including at least a first conductor connecting, in a ring configuration, a source of electricity to a plurality of accessories, the apparatus comprising:
- a switch to cause a break in the ring circuit at a location in the ring circuit, the break resulting in a first end and a second end of the ring circuit at the location;
- a detector for measuring the relative voltage between the first end and the second end of the ring circuit;
- and
- an indicator which indicates, responsive to the detector detecting a relative voltage between the first end and the second end of the ring circuit, that there is a lack of continuity in the ring circuit.
An apparatus for testing continuity of a ring circuit of an electricity distribution system, the ring circuit including at least a first conductor connecting, in a ring configuration, a source of electricity to a plurality of accessories, the apparatus comprising:
- a switch to cause a break in the ring circuit at a location in the ring circuit, the break resulting in a first end and a second end of the ring circuit at the location;
- a detector for measuring the relative voltage between the first end and the second end of the ring circuit;
- and
- a signal generator which signals, responsive to the detector detecting a relative voltage between the first end and the second end of the ring circuit, that there is a lack of continuity in the ring circuit.
A method of testing continuity of a ring circuit of an electricity distribution system, the ring circuit including at least a first conductor connecting, in a ring configuration, a source of electricity to a plurality of accessories, the method comprising:
- providing a switch to cause a break in the ring circuit at a location in the ring circuit, the break resulting in a first end and a second end of the ring circuit at the location;
- providing a detector for measuring the relative voltage between the first end and the second end of the ring circuit;
- and
- providing an indicator, responsive to the detector detecting a relative voltage between the first end and the second end of the ring circuit, the indicator indicating that there is a lack of continuity in the ring circuit.
Dependencies are inferred from the claim text.