Importance

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Abstract

A trolley capable mining truck includes a pantograph supported on machine frame for electrically connecting the truck with an overhead trolley line. A power system includes an onboard electrical power source providing electrical power to a pair of electric drive propulsion motors along a first electrical path in a first configuration of the power system. The electric drive propulsion motors, in turn, power ground engaging propulsion elements. In a second configuration of the power system, the pantograph provides electrical power from the overhead trolley line to the electric drive propulsion motors along a second electrical path, which includes a transient damping reactor. In a third configuration of the power system, the onboard electrical power source provides electrical power to an auxiliary device along a third electrical path including an auxiliary power converter, wherein the auxiliary power converter includes the transient damping reactor.

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First Claim