interposing VT in synchronising circuit

may i know where is the location of this your project ? and what is kind of this project ? is it related to oil & gas project ? thanks

IVT is connected after pt is selected for incoming bus and running bus.

i.e incoming pt secondary then IVT primary and then the IVT sec is connected to synchronising meters and equipments ,the same is for running PT.

is it necessaryto have an IVT of same rating 1;1 ratio with 50 VA CL3P/0.5?

What is the problem in connecting these PTs directly to synchronising meters?what are the advantages in having these IVTS?

Dear All,

For proper answer, oneline diagram must be studied.

Generally, a synchronizing relay needs both VTs ( income and bus) have same voltage ratios and measuring same phases. If not same, you need interposing VT's to correct the differences.

Regards