Apparatus for and method of evenly distributing an...

Details Apparatus for and method of evenly distributing an... Apparatus for and method of evenly distributing an...

H - Electricity

02

J

H02J 1/10 (2006.01) H02J 3/26 (2006.01)

Patent

CA 2273167

An apparatus for and method of evenly distributing an electrical load across an n-phase power distribution network. The current in each incoming phase (.SLZERO.1, .SLZERO.2, and .SLZERO.3) and in each branch circuit (1-5) is measured by a current sensor (16, 18, 20, 42, 44, 46, 48 and 50). The outputs of the current sensors are monitored by a processor (12). Associated with each branch circuit is a multi-pole switch (22, 24, 26, 28 and 30) and a conventional circuit breaker (32, 34, 36, 38, 40). Each switch (22, 24, 26, 28 and 30) is able of connecting its corresponding branch circuit (1-5) to any incoming phase (.SLZERO.l, .SLZERO.2, and .SLZERO.3), and of disconnecting the branch circuit (1-5) from all n phases (.SLZERO.l, .SLZERO.2, and .SLZERO.3). The processor (12) periodically monitors currents flowing through each incoming phase and, based on branch circuit load conditions (1-5), reprograms the switches (22, 24 and 26) to keep the branch circuit loads (1-5) evenly distributed across all three incoming phases (.SLZERO.1, .SLZERO.2, and .SLZERO.3).

Cette invention se rapporte à un appareil et à un procédé permettant de répartir uniformément une charge électrique dans un réseau de distribution d'énergie polyphasée. On mesure l'intensité du courant dans chaque phase d'entrée ( phi 1, phi 2 et phi 3) et dans chaque dérivation (1-5) au moyen de capteurs de courant (16, 18, 20, 42, 44, 46, 48 et 50) dont les sorties sont contrôlées par un processeur (12). Chaque dérivation est associée à un commutateur multipolaire (22, 24, 26, 28 et 30) et à un disjoncteur classique (32, 34, 36, 38, 40). Chaque commutateur (22, 24, 26, 28 et 30) peut connecter sa dérivation correspondante (1-5) à n'importe quelle phase d'entrée ( phi 1, phi 2 et phi 3), ou déconnecter cette dérivation (1-5) de toutes les phases ( phi 1, phi 2 et phi 3). Le processeur (12) contrôle périodiquement les courants circulant dans chaque phase d'entrée et, en fonction des conditions de charge des dérivations (1-5), reprogramme les commutateurs (22, 24 et 26) de façon à ce que les charges des dérivations (1-5) restent réparties uniformément sur les trois phases d'entrée ( phi 1, phi 2 et phi 3).

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