Abstract: This disclosure is concerned with devices and methods for voltage source transfer switching that reduces or eliminates transformer saturation due to DC flux built up during a transfer event. First and second voltage sources (primary and alternate) are connectable to a load via corresponding switches. A transformer is connected downstream of the switches. A controller operates the switches according to various transfer methods wherein a switching time is determined to minimize downstream saturation current.

Abstract: This disclosure is concerned with devices and methods for voltage source transfer switching that reduces or eliminates transformer saturation due to DC flux built up during a transfer event. First and second voltage sources (primary and alternate) are connectable to a load via corresponding switches. A transformer is connected downstream of the switches. A controller operates the switches according to various transfer methods wherein a switching time is determined to minimize downstream saturation current.

Abstract: According to the present invention, a truck includes a truck body, a partition, a door, a first conveyor system and a second conveyor system. The partition divides the interior volume of the truck body into a first cargo volume and a second cargo volume. The door is located at the rear wall of the truck body and is selectively movable between an open position and a closed position. The first conveyor system is disposed in the first cargo volume and the second conveyor system is disposed in the second cargo volume. The first and second conveyor systems are separately and selectively operable to move materials in the first and second cargo volumes, respectively, towards the door. Therefore, the truck body of the present invention can carry two (2) separate loads of different materials using a single truck in a single trip.