Digital protection relays CZAZ dedicated for MV power grid comprehensively provide protection and control functions for MV switchgears opereting in power grids with solidly, insulated or compensated power networks.

CZAZ-U digital protection relay can be adjusted to objects needs by specialised software tool. The relay covers complex protection functions set, bay controller with possibility to free adaptation of control functions and operation logic.

Built-in function of bay controller ensures safe operation, breakers control while the programmable logic ensures possibility to flexible adapt the device to each type of protected object.

Specialised variants dedicated for well-defined applications are also available.