| RefNo | PP/24/8/1 |
| Previous numbers | PP/56/9 |
| Level | Item |
| Title | Manuscript, 'Note on the possibility of obtaining a unidirectional current to earth from the mains of an alternating current system' by Philip Cardew |
| Creator | Cardew; Philip (1851-1910); English army officer; electrical engineer |
| Date | 1894 |
| Description | Cardew writes: 'In carrying out some tests on the high-pressure alternating current system of the Metropolitan Electric Supply Company Ltd., of a combination intended to act as an indicator of leakage to earth, the existence under certain conditions of an excess of current in one direction to earth by leakage through the dielectric of the cables, or through small faults therein, has been demonstrate.'
Annotations in pencil and ink. Includes a covering letter dated 7 May 1894 and three circuit diagrams.
Subject: Electricity
Received 10 May 1894 / 11 May 1894. Read 31 May 1894. Communicated by Lord Kelvin [John William Strutt].
A version of this paper was published in volume 56 of the Proceedings of the Royal Society as 'Note on the possibility of obtaining a unidirectional current to earth from the mains of an alternating current system'. |
| Extent | 6p |
| Format | Manuscript |
| PhysicalDescription | Ink and graphite pencil on paper |
| Digital images | View item on Science in the Making |
| AccessStatus | Open |
| RelatedMaterial | DOI: 10.1098/rspl.1894.0083 |
Fellows associated with this archive
| Code | PersonName | Dates |
| NA6090 | Strutt; John William (1842 - 1919); 3rd Baron Rayleigh; experimental and mathematical physicist | 1842 - 1919 |