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Hi everybody As you know in a substation automation system we read the metering information via modbus protocol,I would like to know that can we convert modbus to IEC61850 and then transmit the metering information to the system?

Hi everybody Is there any standard for availability calculation of substation automation system?

Hi everybody Because of special specification of sealed batteries I have never seen that this type of battery used in power substations.But I want to be sure that can we use this type of battery in power substation or not.Do you have any experiance about this?

Hi everybody I need to know the standard value of voltage drop in CVT cable calculation(is it 1% or 0.5%)

Hi everybody As we know in IEC mentioned that because of keeping the accuracy,load of CVT should be 0.25% to 100% nominal burden of CVT anf If the load is less than 25% nominal burden,accuracy of CVT will reduce.I would like to know that is there any relashin beween load and accuracy,e.g if the...

hello everybody As we know according to technical data and catalogs,new distance relays can protect even very short lines(e.g less than 3km),so if in practis they can protect a very short line corectly,can we use them instead of line differential relay?

Hi everybody I would like to know that for protection relay CT requirement,is there any limitation for Rct in TPY class?