1、 Introduction
Sim series three-phase aviation static converter is a special converter specially developed and produced by Shaanxi blue sea Electric Co., Ltd. for power supply of aviation gyroscope and other avionics equipment. The product adopts
DSP digital control technology enables the converter to have good output performance and system stability; the output over-current protection adopts cut-off protection, which has strong adaptability to the impact of load; the MOSFET high-frequency switch is used
With the advantages of low loss and SPWM transformation, the converter has the characteristics of small volume, light weight, high efficiency and high reliability.

2、 Applicable places
Military aviation gyroscope, special power supply for land, sea and air detection system, switching power supply for navigation system and satellite navigation system.

3、 Executive standard
Gjb181 aircraft power supply characteristics and requirements for electrical equipment
GJB151A requirements for electromagnetic emission and sensitivity of military equipment and subsystems
Gjb152a military equipment and subsystem electromagnetic emission and sensitivity measurement
GJB150 environmental test method for military equipment

1. Specially designed for military and aviation gyroscopes, with three-phase output voltage of 36V, 400Hz or 1000Hz;
2. Strong overload capacity, 120% overload for 1 minute; 200% overload for 5 seconds;
3. A number of safety protection measures, with over-voltage, over-current, over high temperature, short circuit protection function;
4. Load adaptability, pure resistance, capacitive, inductive or non-linear load can be used.

1. Rated input power: DC 28V;
2. Working voltage range: 22V ~ 34V;
3. Rated output voltage: three-phase AC 21V / 36V or 115V / 200V (phase voltage / line voltage);
4. Output voltage stability: 21V ± 2%; 115V ± 1% (phase voltage);
5. Load adjustment rate: ＜ 5% (no load to full load);
6. Rated output frequency: 400Hz ± 0.5Hz; 1000Hz ± 0.5Hz;
7. Output waveform: sine wave;
8. Rated output power: three-phase total power 150va-500va;
9. Overload 1.2 times 30s; 1.6 times 1s protection;
10. Total harmonic content: ≤ 2%;
11. Three phase voltage imbalance degree: ≤ 2%;
12. Output phase sequence: a-b-c is positive phase sequence;
13. Protection function: input overvoltage, output overvoltage, overcurrent, short circuit, internal overheating protection;
14. Boundary dimension: 220 × 140 × 50 (mm) (excluding avionics connector);
15、 Weight: ≤ 8.5Kg;
16. Working temperature: - 40 ℃ + 50 ℃;
17. Storage temperature: - 45 ℃ ~ + 85 ℃
18. Vibration and impact: in accordance with gjb150-86 environmental test methods for military equipment;
19. Electromagnetic compatibility: in accordance with gjb151a-1997 requirements for electromagnetic emission and sensitivity of military equipment and subsystems.