RCVT to Relay Connection

[Kiribanda]

Gentlemen,

Recently I read a paper on RCVTs and came to know that they have an A/D converter and can operate on a very broad frequency band.As a result,not like a CCVT or EMVT,a RCVT gives a true image of the frequency variations of the HV line if someone is interested in harmonic measurements etc.Can we connect protective relays to a RCVT or do we need to use an additional CCVT or EMVT for the relay connection?How do we define the burden of a RCVT to connect relays, meters etc?Your inputs are appreciated.

 

[davidbeach]

RCVT = ?

 

[ScottyUK]

Rogowski Coil Voltage Transformer?


----------------------------------

If we learn from our mistakes I'm getting a great education!

 

[rterickson]

According to Trench, they make a resistive-capacitive voltage divider (aka resistive-capacitive voltage transformer) in addition to the old-fashioned capacitive and inductive VT's. They look expensive. The Trench website says they can be used for metering and protection.

ABB also has a few fiber optic voltage/current transducer designs.

 

[ScottyUK]

Back to David's question...


----------------------------------

If we learn from our mistakes I'm getting a great education!