BKNA115V
Voltage control unit
Description
BKNA115V ground-power voltage control unit
BKNA115V is an aircraft ground-power voltage control unit that prevents an unsuitable external AC source from being connected to the onboard electrical network. It monitors the quality of aerodrome power before connection and continues supervising the source after the circuit has been energized. If voltage or frequency lies outside the permitted conditions, the unit blocks connection or commands disconnection. This makes BKNA115V a protection and control device, not a power converter or generator regulator.
Full descriptionCollapse description
How BKNA115V protects the onboard network
The unit supervises a three-phase 115 V, 400 Hz external supply and works with the contactor circuit of the ground-power interface. Its logic evaluates the monitored phases against defined thresholds and uses a time delay where specified, helping avoid unnecessary switching while still isolating unacceptable power. The existing technical data identifies separate connection-blocking and delayed-disconnection ranges for undervoltage, together with an overvoltage threshold. Correct operation therefore depends on both the control unit and the associated wiring, contactors and power source.
Installation in the aircraft electrical system
BKNA115V belongs to the aircraft electronic control equipment used at the external-power input. It is supplied from the DC network while monitoring the aerodrome AC source. Installation, terminal assignment and functional testing must follow the aircraft wiring diagram and the product documentation. A unit with a similar enclosure or a related BKNA designation must not be substituted solely on appearance, because monitored limits and interfaces may differ between executions.
Documented aircraft application
The unit is associated with electrical systems used on aircraft including the Antonov An-148, Il-114, Il-96-300, Tu-154M and Tu-204-100. This list describes documented or catalogue application and does not prove interchangeability across every modification. The installed part number, aircraft configuration and approved maintenance documentation remain decisive, especially when a power-distribution system has been modernized or a ground-power interface has been revised.
Identification and ordering of BKNA115V
For an enquiry, confirm the complete BKNA115V or Cyrillic БКНА115В marking, connector arrangement, mounting frame and available passport. The 115 V designation forms part of the equipment identity and should not be omitted. It is also useful to state the aircraft type, required condition and whether the matching mounting frame is needed. Before installation, inspect the housing and connectors and verify the protection thresholds using the approved test procedure rather than an improvised power source.
Technical details
- Product Type
- Aerodrome power voltage control unit
- Function
- Protection of the onboard network from unsuitable external AC ground power
- Application / Where Used
- Aircraft electrical power systems
- System / Installation Area
- External ground-power connection circuit
- Compatible Aircraft / Equipment
- An-148, Il-114, Il-96-300, Tu-154M, Tu-204-100; exact modification to be confirmed
All specificationsCollapse specifications
- DC Supply Range
- 24.0–29.4 V
- DC Current Consumption
- Not more than 1.2 A
- AC Current Consumption
- Not more than 0.2 A at 115 V, 400 Hz
- Monitored AC Supply
- Three-phase 115 V, 400 Hz
- Undervoltage Protection
- 108–114 V connection blocking; 101–107 V delayed disconnection
- Overvoltage Protection
- 123–129 V
- Undervoltage Time Delay
- 6.0 ± 0.9 s
- Operating Mode
- Continuous
- Weight
- Not more than 3 kg
- Alternative Designations
- BKNA115V; BKNA-115V; БКНА115В; БКНА-115В
- Selection Requirement
- Confirm aircraft wiring, connector arrangement and mounting frame
- Technical Documentation
- Manufacturer passport and approved aircraft documentation
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