The BZ-5 transformer rectifier converts 115V/200V 400Hz intermediate frequency AC power to 28.5V DC power, providing electricity for aircraft and starting the engine. It employs multi-pulse rectification technology. It has a continuous output current of 800A, a surge current of 2000A for at least 5 seconds, and when the current is 1600A, it remains above 23V for a duration of 60 seconds. The Mean Time Between Failures (MTBF) value reaches 41,000 hours, reaching the maintenance-free level.
Design complies with GJB572-88 and GJB572A-2006 requirements.
Technical Specifications:
Rated Voltage: 28.5V
Rated Current:800 A (dual)
Rated Power:＞46 kW continuous operation (output cable not assessed)
Steady-state voltage range:24～29 V
Full Load Start (1600A) Voltage:Not less than 23V, duration of 1 minute
0-70V Start-up Method (Optional, Two-way DC Series)Starting Voltage: 4-6 V
Current: 2000 A ≥ 5 seconds
Termination Voltage: 35 V
Noise:≤85 dB
28.5V/57V Boost Supply Start (Optional)
MTBF value reaches 41,000 hours, achieving maintenance-free status.
DC 28.5V Power Supply Characteristics
Steady Voltage: 27-30V
The difference between the peak and average pulse voltage: not greater than 2V.
Pulse Voltage Spectrum: Complies with the provisions of GJB1910-94.
Ambient Temperature
Operating Environment: -40℃ to +50℃
Altitude: 0-2000m
Operates normally under 90% relative humidity conditions.
