Reference No: A0343

MAEX: Modular Analog Excitation System Dynamic Excitation for Emergency Diesel Generators (EDG)

Main description

MAEX is a software-free modular excitation system for brushless generators. It has a highly flexible design, which can easily be applied to existing infrastructures. The base module fulfills all safety relevant functions for voltage regulation and signaling. An optional extension module provides manual control (additional redundancy), monitoring features as well as cos ϕ and reactive load control. Standard add-ons such as converters for different voltage supply allows flexible designs to consider special customer requests. A standardized power supply interface facilitates different power supplies by a Permanent Magnet Generator (PMG), shunt supply by potential transformers (PT) or different auxiliary supply from an alternating uninterrupted power supply (UPS). Accelerated start-up of generator voltage is accomplished by Field Flashing.

Product Sheet


  • Challenge solving Challenge solving
  • Operator competitiveness Operator competitiveness
  • Safety excellence Safety excellence
  • Efficiency of operation Efficiency of operation
  • Expertise Expertise
  • Challenge solving
  • Safety excellence