Intertrip/Interlocking between IED which using different communication protocol

[bee79]

Dear Experts,

As per the subject, if an upstream IED using Modbus and downstream IED using IEC61850 communication, how to implement the intertrip/interlock function between them?

The upstream and downstream equipment are located very far from each other where hardwire connection is not possible and fiber optic is the only solution.

 

[jghrist]

I am assuming GOOSE messaging and that if the project specification was for IEC61850, then the speed of IEC61850 would be required. I don't know if there is a protocol converter.

Using two SEL-2505's would be the simplest and probably most economic solution if the Mirrored Bits communications would be acceptable.

 

[marks1080]

I would do what jghrist recommended. Cheap, easy and effective.

 

[bee79]

Dear All,

Thanks you for your supportive answers. I have few options now and will choose the most economical solution when finalize the design.