BRZU115VO-2S

Operating role of BRZU115VO-2S

BRZU115VO-2S regulates the output of an AC generator, monitors the generation channel and controls connection to the onboard network after the required voltage and frequency conditions are reached. The documented supply includes 24.0–29.4 V DC and a three-phase 22–29 V AC input at 800 Hz ±5%. The regulated output is 117 V, three-phase, 400 Hz, with a stated static regulation accuracy of ±2 V within the 115–119 V band.

Integration with aircraft electrical equipment

The unit belongs to the electronic control equipment of the aircraft electrical system. Reliable operation depends on correct DC supply, generator or exciter inputs, serviceable wiring and the specified contactor or protection circuits. During troubleshooting, the block should be checked as part of the complete generation channel rather than replaced solely because the bus voltage is abnormal. Bench testing and adjustment require the approved passport or repair documentation for this exact execution.

Aircraft-system application

Known application includes Tu-204, Tu-214, Il-96-300, An-140, An-148, Be-200 and Mi-28 electrical systems. The external reference to Antonov An-148 is provided for aircraft context; it is not an interchangeability statement. Installation on a particular airframe depends on its modification, generator set and approved electrical-system configuration.

Identification and ordering

Confirm the full BRZU115VO-2S marking, Cyrillic designation, series or suffix, connector arrangement and passport before ordering. Similar BRZU115V, BRZU115VA and BRZU115VO names can describe different regulation channels, supply interfaces or protection settings. An enquiry should include the aircraft type, installed generator or system designation, required condition and available data-plate photo. Replacement is accepted only after comparison with the aircraft illustrated-parts catalogue and maintenance documentation.