Differential protection Relay

[shahnawazbachh]

I am working as a contractor for changing the diferential protection relay with GE numerical differential relay L90.The other end is not in our scope , from where (02no.copper wire)pilot wire is coming which is connected with old version of CEE relay.Is L90 GE relay can compatible to work with other type of relay or any body can sugges any other numerical differential relay of GE which is compatible with old version of relay.Keep in mind we are bound to replace our scope of work with GE relay.

Thanks in advance.

 

[shahnawazbachh]

I have got the answer for getting the result of differential it is necessary to use the L90 on both side ,other wise it cannot work.