61850 Insights?

[etronics]

We will be implementing this protocol at our substation and I would like to know what are some of the pitfalls to avoid.

Currently we use GE and SEL relays but we may move to Siemans and Abb since they seem to be the most versed in using 61850. We will be installing a redundant secure ethernet backbone for comms. to all the devices ie; breakers, relays, DFR, Cts and Pts.

Any info would certainly be a great help.

Thanks.

 

[slavag]

Hi Etronics.
Sorry, I would ask you few Q's.
1. Are your substation is utilities substation or factory?
2. Are you would like change your standard relays to others
only becouse communication protocol?
3. Are you would like 4 HW and SW types in your substation, spare parts too?
4. Are you use GOOSE mess?
Could you please explain as EE to EE.
Sorry again, isn't agains you. I try understand this logic.
BTW, same logic have our utilities. Up today, I don't understand term --multivendor issue. For what?
What is a primary: relays and protection or SCADA.
Best Regards.
Slava

 

[dpc]

http://www.selinc.com/techpprs/6308_Applying61850_RA_20080403.pdf

http://www.selinc.com/techpprs/6271_CS_DesignImplement61850_JA&DD_20070406.pdf

These two papers might be of interest. (I have no connection with SEL.)

My advice would be to select protective relays primarily based on protection requirements. I do not think any advantages gained through 61850 compatibility would take precedence over the necessary protection and monitoring functions. There is nothing that can be done using 61850 that cannot be done using another approach.

I think that the concept of 61850 is good, but the industry is a long way from fully supporting the standard and the details of implementation are still being worked out.

 

[etronics]

Slavag,

1. Utility
2. Yes
3. Not my decision, I do not like 4 types of HW and SW but this would be for a new substation but will include a mix in older substations.
4. We will be using GOOSE.

Questions are never a problem.

DPC,
I will take a look at those tech papers on the SEL website.
Thanks.

 

[slavag]

Hi Etronics.
Siemens and ABB have a long reference list of IEC61850 projects. And one first big multivendor project in the Germany.
I like this idea (IEC61850), but...I strongly against multivendor projects. It's only my opinion.
Every big companies have a all range of relays for all purpose. I heard many opinions about redandancy, about advantage and disadvanges of multivebdors projects.
I would like say to you only one thing: be carefull with IEC61850 and GOOSE. Don't trust to all promoting and sells documentation
Good Luck.
Slava

 

[etronics]

It looks as though outside of the U.S. 61850 has been embraced. So far I don't see any huge problems with 61850. Looks like it is the future of substation design.
What I've read looks good, standardized simple data structure, self configuring devices, reduced wiring, ease of modifying protection schemes etc.

Still doing research though, I would like to hear from someone with direct experience.

 

[Bilegan]

etronics

When adapting IEC 61850 as your standard for the communication protocol of your substation control and monitoring system, you will end up re-programming your system to be able to communicate with the equipment built with modbus/profibus communication protocol.

Another issue is, when you re-program relays, you lost warranty. You can also receive negative answer from system's integrator that their work is not guaranteed.

Regards,
Bilegan

Murphy's Law - If anything can go wrong..it will.