System for calculating an electric quantity, transformer sub-station comprising such a system and method for calculating an electric quantity with such a system
US10254126B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 11, 2014 |
| Grant date | Apr 9, 2019 |
| Priority date | — |
| Expiry date | Feb 6, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY04S10/16
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The system (20) according to the invention for calculating an electric quantity relative to an electrical installation comprising several secondary electrical conductors (42A, . . . , 48C) electrically connected to a primary electrical conductor (34; 36; 38). This system comprises a first module (60) including a wireless transmitter (70) and a plurality of second modules (62A, 62B, 62C). Each second module includes first means (84A, 88A; 84B, 88B; 84C, 88C) for receiving a first synchronization message (M1) and second transmission means (84A, . . . , 88C) for sending a second message (M2A, M2B, M2C) containing at least one intensity value measured by the corresponding current sensor to a third module (63). The intensity values are measured quasi-simultaneously and the third module includes a unit (104) for calculating the electric quantity from intensity values received via said second messages.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.