Multifunctional relays for Power Engineering
The production of protections for industrial and professional power engineering is the basic profile of the ZAZ-En company. Our goal is to introduce innovative technical solutions, including digital technology, to the area of protection of systems and devices used in the energy industry.
The protection relays developed by us perform a full range of protection functions, from simple current and voltage relays, to advanced earth-fault protection solutions (including admittance), differential protection of generators, motors, transformers and protection systems for generator-transformer blocks of the highest power. They can act as bay controllers, e.g. in comprehensive protection of medium or high voltage bays. The iZAZ series protection devices are also used as distance protection of HV lines and differential protection of medium and high voltage lines, implemented as two half-sets with a dedicated fiber optic link.