Voltage Sequence in Three Phase System from wattmeter reading
Lets use a Pumped-storage hydroelectricity for an example.
https://en.wikipedia.org/wiki/Pumped-storage_hydroelectricity#Direct_pumping

The turbines of this storage could operate as both turbine-generators and in reverse as electric motor driven pumps. If such a wattmeter is inserted between the grid and the generator/motor of the pump storage, it will show how much power flows and the direction of flow when electric energy is stored or released. But the sequence of the 3 phase system never changes, the generators of the grid always rotate in the same direction. The wattmeters may show any value between plus and minus 100 % but the phase sequence never changes. There is no relation between the reading of the wattmeters and the phase sequence.