Fuel, communications, and power connection systems and related methods

A hydraulic fracturing unit, comprising:

• a gas turbine engine operably connected to a pump;
• and
• a fuel line connection assembly comprising:
• a distribution line having an inlet end and an outlet end, the inlet end connected to one of a plurality of fuel manifolds and configured to provide flow communication between the fuel manifold and the gas turbine engine;
• an inlet coupling proximate the inlet end and configured to be connected to a fuel line providing flow communication with a fuel source via the fuel manifold;
• an outlet coupling proximate the outlet end and configured to be connected to the gas turbine engine;
• and
• a valve positioned in the distribution line and configured to change between an open condition through which fluid flows and a closed condition preventing fluid flow,
• wherein the fuel line connection assembly is configured to be in flow communication with a first outlet of a plurality of outlets of the fuel manifold that are each configured to discharge fuel from the fuel source;
• each fuel manifold of the plurality of fuel manifolds is configured to provide an independent fuel supply from the fuel source;
• and
• a transfer line is configured to provide flow communication between the plurality of fuel manifolds.

A hydraulic fracturing unit, comprising:

• a gas turbine engine operably connected to a pump;
• and
• a fuel line connection assembly comprising:
• a manifold line having an inlet end and an outlet end, the inlet end connected to one of a plurality of fuel manifolds and configured to provide flow communication between the fuel manifold and the gas turbine engine;
• an inlet coupling proximate the inlet end and configured to be connected to a fuel line providing flow communication with a fuel source via the fuel manifold;
• an outlet coupling proximate the outlet end and configured to be connected to the gas turbine engine;
• and
• a valve positioned in the manifold line and configured to change between an open condition through which fluid flows and a closed condition preventing fluid flow,
• wherein the fuel line connection assembly is configured to be in flow communication with a first outlet of a plurality of outlets of the fuel manifold that are each configured to discharge fuel from the fuel source;
• each fuel manifold of the plurality of fuel manifolds is configured to provide an independent fuel supply from the fuel source;
• and
• a transfer line is configured to provide flow communication between the plurality of fuel manifolds.