Answer / sk.ramzan bee

Trivector meter can measure active power ,reactive power ,apparent power i.e.with the help of a single meter we can measure kva,kw,kvar. The power triangle is sum of (kW , kVAR, kVA) and the meter which gives readings all of the above variables is called TRI vector meter.

Answer / k.prakashchandra

ETVM has many functions which are not available with
ordinary meters s.a. maximum demand, pf ,average
pf,amps,voltage,kw,kva,kvar, readigs as on yesterday and as
at the end of prev month and many more . ct/pt ratios can
also be incorporated to give direct readings.It can be
connected to computer and scada for remote reading and etc

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