Self-powered RMU protection

One single relay with different settings for operation and maintenance tasks, is becoming a mandatory requirement nowadays.

Not only does it speed up the process, but it also complies with safety procedures and allows to optimize the size of the Main Ring Units (RMU)s.
SIA-B relay will allow the user to manage different applications with one device. The required operating mode will be selected by the user in several easy ways.
Provided with 4 settings groups, it supports the most reliable protection solution, to facilitate the settings process and to offer the best protection even when auxiliary supply is not available.

Relion advanced protection & control.
BeijingSifang June 2016