Method for accessing electric grids to power fracturing operations

A method for performing hydraulic fracturing using power from a utility electric grid, comprising:

• accessing power from the utility electric grid;
• operating at least two transformer units, in parallel, to step down a line voltage of the power from the utility electric grid;
• passing the power from the at least two transformer units through at least one switchgear to a plurality of electric motors using at least one open air relay cable;
• with each of the plurality of electric motors, driving at least one hydraulic fracturing pump;
• and
• utilizing a motor control system connected to at least one trailer transformer unit associated with the at least two transformer units to automatically switch between a normal buss operation and an emergency buss operation.

A system for performing hydraulic fracturing using power from a utility electric grid, the system comprising:

• a mobile substation comprising at least two transformer units that are operatively coupled to the utility electric grid in a parallel orientation,
• wherein the transformer units are capable of accessing power from the utility electric grid and stepping down the power for delivery to at least one switchgear,
• wherein the power distribution pole provides at least 24.9 KV of power to the mobile substation,
• wherein the power distribution pole is connected to the mobile substation via at least two conductor cables;
• a plurality of electric motors,
• wherein each electric motor is operatively coupled to a hydraulic fracturing pump and operatively controlled by a variable frequency drive, and
• wherein each electric motor is coupled to one of the at least one switchgear by at least one open air relay cable.