BBC Li41a Distance Protection Manual

[MANUELPARRA]

Hello to you all.
I'm working on protection setting calculation of BBC Li41a Distance Relay and I'm looking for the instruction manual... could you help me to find that information..
Thanks in advance.
Best Regards.

 

[ptcabb]

LI41a_EN

LI4-EN

YL-ZM2-EN

Time to replace that device with something new. No support or spare parts anymore.

 

[MANUELPARRA]

Thank you so much for sharing this information.
I totally agree with you about replacing that protection, that is one of the oldest protection relay in service but still operating o.k. We are planning to replace that protection in the near future.
Regards.