BRZU115VA-2S
Generator control unit
Description
BRZU115VA-2S regulation, protection and control unit
BRZU115VA-2S is an aircraft electrical control unit used in an AC power-generation channel. It combines voltage regulation, protective supervision and generator-control functions in one assembly. The unit does not generate electrical power itself; it works with the generator, excitation circuit, switching equipment and onboard network. Its exact operating law is determined by the execution identified by the complete suffix, so closely related BRZU units must be treated as separate products until documentation confirms compatibility.
Full descriptionCollapse description
Operating role of BRZU115VA-2S
BRZU115VA-2S performs voltage regulation, protection against abnormal electrical conditions and control of generator excitation. The documented inputs are 24.0–29.4 V DC and 22–29 V AC, while the regulated output is stated as 117 V AC at 400 Hz. The static regulation value is ±4 V within the specified 117–119 V limits. The A and Series 2 elements are part of the identity and must remain in purchase and maintenance records.
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
The unit is installed in aircraft and helicopter AC generation systems using the matching stabilized-frequency generator arrangement. The external reference to aircraft 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 BRZU115VA-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.
Technical details
- Product Type
- Regulation, protection and control unit
- Function
- Regulation, protection and excitation control of an AC generator
- Application / Where Used
- Aircraft AC electrical power systems
- System / Installation Area
- Onboard generation and generator-control channel
- DC Supply Range
- 24.0–29.4 V
All specificationsCollapse specifications
- AC Supply Range
- 22–29 V
- Regulated Output Voltage
- 117 V AC
- Nominal Frequency
- 400 Hz
- Static Regulation Value
- ±4 V within the specified 117–119 V limits
- Operating Current
- 2.7 A
- Weight
- 0.98 kg
- Assigned Resource
- 2,000 h
- Assigned Service Life
- 25 years
- Storage Life
- 8 years
- Alternative Designations
- BRZU115VA-2S; BRZU-115VA-2S; BRZU115VA Series 2; БРЗУ115ВА-2С
- Technical Documentation
- Passport 8A2.390.292 PS / 8А2.390.292 ПС
Payment & delivery
Orders ship from our hub in Dubai. Partner stock is first transferred to Dubai, then shipped to you.
Dubai stock: 100% before dispatch. Partner stock (Remote stock) and Pre-order: 50% advance payment to start the order and 50% before shipment from Dubai to you.
Availability, lead time, delivery cost and payment terms are confirmed for your order before payment.
Payment & delivery terms