Quebec Interconnection

The Québec Interconnection is a wide area synchronous grid and one of the three minor alternating-current (AC) electrical grids in the continental U.S. power transmission grid. The other two minor interconnections are the Texas and Alaska interconnections. The Quebec Interconnection is tied to the Eastern Interconnection with four high-voltage direct current power transmission lines (DC ties), and with one variable-frequency transformers (VFTs) line, which isolate the unsynchronized AC frequencies of each side.

Quebec Interconnection

The Québec Interconnection is a wide area synchronous grid and one of the three minor alternating-current (AC) electrical grids in the continental U.S. power transmission grid. The other two minor interconnections are the Texas and Alaska interconnections. The Quebec Interconnection is tied to the Eastern Interconnection with four high-voltage direct current power transmission lines (DC ties), and with one variable-frequency transformers (VFTs) line, which isolate the unsynchronized AC frequencies of each side.