AC branch power distribution filter
US4725739A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 10, 1986 |
| Grant date | Feb 16, 1988 |
| Priority date | — |
| Expiry date | Oct 10, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H9/005
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An AC branch power distribution filter is provided for supplying AC power to a plurality of different load devices from a common external AC power source that eliminates the need for a separate protection device at each power outlet with the load devices. A plurality of elongate, flat conductors are coupled to the AC power source and include a neutral conductor, a ground conductor and at least one live conductor. The elongate flat conductors are parallel and spaced apart in an electrically insulated casing member. An electrically conductive shield member is electrically connected to the ground conductor and extends lengthwise of the elongate flat conductors overlying the insulative casing member. The shield member provides a shunt capacitance between ground potential and each of the live conductors and the neutral conductor. This distributed capacitance is utilized as the shunt element of the distribution filter. Transition filtering circuitry is connected between the plurality of elongate flat conductors and the common external AC power source. The transition filtering circuitry includes an inductance device connected in series with each of the live conductors and the neutral cond…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.