the example curve shows that the equipment under test should keep operating during operating conditions indicated in the area above the low voltage ride through curve. Specifically, the equipment under test should keep operating for (t1-t0) seconds without disconnecting from the grid when the interconnection voltage drops to 0% of rated voltage; for (t2-t0) seconds when the voltage drops to 30% of rated voltage; and for (t3-t0) seconds when the voltage drops to 70% of rated voltage. The equipment under test should disconnect from the grid during operating conditions indicated within the shaded areas.