Whats meant by trivector meter where it is connected at the
substation?

Answer Posted / pradyumna kumar jena

There are 3 types of electrical ernergies. These energy
parameters are vectors. They follow the Phythagourous
theorem. 1. VI, 2. VICos(phi), 3. VISin(phi). The sequence
is Apparent, Active and Reactive. Any meter, which
measuring all these three vectors is called Trivector. It
may be single or Three Phase, not an issue.

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