Motor control center
AssigneeTokyo Shibaura Denki Kabushiki Kaisha
InventorsMasatomo Takagi, Seietsu Takamatsu, Tsuguo Noritake, Mitsuo Ogaki, Norio Tetsuka, Toshio Takahashi
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Abstract
In a motor control center of the present invention, a plurality of units are mounted on a frame. Each of these units has an appliance mounting plate with two walls which extend transversely from the floor plate in stepped form. A first group of electrical appliances which requires relatively frequent maintenance and inspection among the electrical appliances to be mounted in the unit is mounted at the front sides of said two walls and a second group of electrical appliances which requires less frequent maintenance and inspection is mounted on the back side of the wall nearest the front.
Claims13
A motor control center having a frame which has a plurality of mounting sections open in one direction, a three-phase main bus, and a three-phase branch bus;
- and a plurality of units mounted in each mounting section, supplied with power from said branch bus, and supplying power to a predetermined load;
- each of said units comprising a floor plate;
- a first group of electrical appliances which requires relatively frequent inspection and maintenance;
- a second group of electrical appliances which requires relatively infrequent inspection and maintenance;
- and an appliance mounting plate which stands upright from said floor plate and which has a first and a second vertical wall spaced apart in said one direction and extending parallel to each other in stepped form;
- said first group of electrical appliances being mounted on the sides of said first and second vertical walls which face said one direction;
- and said second group of electrical appliances being mounted on the side of the second vertical wall which faces opposite to said one direction.
Dependencies are inferred from the claim text.