Voltage Transformer name plate
Voltage Transformer name plate
(OP)
I have a voltage transformer name plate said
6,3/√3 / 0.11/√3 / 0.11/3
0.2/3P / 40/30 kVA
can someone explain about this values?
thank you
6,3/√3 / 0.11/√3 / 0.11/3
0.2/3P / 40/30 kVA
can someone explain about this values?
thank you





RE: Voltage Transformer name plate
So 6.3kV/√3 = 3.637 kV on the primary. The same applies for the secondary voltages, here also expressed in kV.
.110 kV = 110 V/√3 = 63.51 V. These are pretty standard secondary ratings for PT.
The reason for the 0.11/√3 / 0.11/3 listing is that the PT has 2 secondary windings, which is fairly common. Do I read correctly that the second winding does not have "√3" attached to it?
This is an IEC PT, so I will guess that the 0.2/3P is 0.2 = metering accuracy and the 3P is the protection accuracy.
The 40/30 kVA, would require a little more investigation as the numbers don't appear to add up for a 3 winding device. Perhaps it is intended for secondary windings only.
I would look for the manufacturers data sheet to confirm the kVA ratings and the lack of √3.
RE: Voltage Transformer name plate
I'm pretty sure that the name plate say 110/√3 / 110/3
that's what confuse me, is it the secondary voltage too? but why 110 / 3 instead of 110 / √3
it is uncommon value of secondary voltage.
I couldn't find the manual book, and by the way it is chinese PT
RE: Voltage Transformer name plate
RE: Voltage Transformer name plate
thank you very much
RE: Voltage Transformer name plate
See http://www.basler.com/downloads/pc-59n01.pdf, or google for further explanation.
RE: Voltage Transformer name plate
RE: Voltage Transformer name plate
There is more information on the VT subject from a more IEC perspective available @ http://www