The 400Hz medium frequency static variable power supply utilizes high-frequency power electronic switching technology, specifically designed and manufactured for aviation and military electronic electrical equipment. It serves as a 400Hz stationary variable frequency power supply suitable for aircraft and on-board equipment, radar, navigation, and other military electronic devices, as well as any other applications requiring a 400Hz medium frequency power supply. It is a replacement product for the conventional generator set variable frequency power supply.
Reference Standard:
GJB572A-2006 Aircraft External Power Supply Characteristics and General Requirements
GJB181A-2003 Aircraft Power Supply Characteristics
GB4208-2008 IP Code for Enclosure Protection Level
GB/T3859.1-1993 Specifications for Basic Requirements of Semiconductor Converters
GB/T3859.2-1993 Guidelines for the Application of Semiconductor Converters
GB/T 13384-1992 General Technical Conditions for Packaging of Mechanical and Electrical Products
Advantages of the 115/200V 400HZ aviation ground static power supply series:
1. Input three-phase three-wire system, this wiring method effectively suppresses the interference of the 3rd harmonic on the power grid.
Input and output are completely isolated.
2. Multiple voltage and current loops form a closed-loop control.
3. Automatic cable voltage drop compensation feature to address the issue of voltage drop at the load end due to excessively long cables.
4. Suitable for unbalanced loads; each phase can be used independently.
5. Current limiting control output with circuit breaking function, adaptable to inductive loads such as motors and rectifiers; equipped with multiple protection features for abnormal conditions including overheating, overcurrent, short circuit, and overload.
6. Independent protection design integrating hardware and software ensures the integrity of electrical equipment and safety of operators.
7. VFD for voltage, current, frequency, and fault display; user-friendly operation with intuitive display.
External Communication Ports: RS-232, RS-485
Technical Specifications:
| Specs | RJF33______ | |
| Volume | 500VA-200KVA (Customizable to customer requirements) | |
| Input rated voltage | 220V/380V±10% 50Hz±2％ | |
| Output | Rated Voltage | 115V/200V (Voltage range: 0V - 150V) Three-phase four-wire |
| Stabilized Voltage Accuracy | ≤±0.5% (full scale) | |
| Frequency | 400Hz with adjustable range of 300-500Hz (customizable to customer requirements) | |
| Frequency Stability | 0.01% (Full Scale) | |
| Dynamic Characteristics | Overshoot and recovery time meet GJB572 requirements. | |
| Waveform Distortion | Pure sine wave, THD < 2.5% (linear load test) | |
| Phase difference | 1/3 Unbalanced Load 120°±1.5°; Fully Unbalanced Load 120°±3° | |
| Source adjustment rate | ±0.2% (Full Scale) | |
| Load Adjustment Rate | ±1% (Full Scale) | |
| Digital Display | Voltage Display | True RMS Value: 0.1V |
| Current Display | True RMS 0.1A | |
| Frequency Display | 0. 1HZ | |
| Protect | Output short circuit, overcurrent, overvoltage, overload, internal overheating | |
| Reliability | MTBF: 8,000 hours; Average Repair Time: 3 hours | |
| Comprehensive characteristics | Noise | ＜65dB |
| Inbound and outbound line methods | Backside in and out lines | |
| Cooling Method | Air-cooled | |
| In-and-out ventilation | Bottom and side air intake, top and back exhaust | |
| Protection Level | IP20 | |
| Environment | Application Environment | Temperature -10 to 45℃; Humidity 0 to 90% non-condensing state |
| Altitude | ≤2000m | |
Note: This power supply has been treated with electromagnetic compatibility measures, as well as moisture, smoke, and damp prevention.
