Single-phase static converter SPO-9 is designed to convert direct voltage 27V into single-phase voltage 36V AC rectangular with a frequency of 400Hz. Voltage conversion is performed by transistors in a key mode. It is used on Mi-8, Ka-32 helicopters. 1.

1. Supply voltage: 27 + 10% (“emergency mode” 22 + 2V is provided).
2. Output voltage: rectangular 36 + 5V (effective value of the entire voltage curve), frequency 400Hz + 2%.
3. The maximum output power, with an active-reactive load with a sos section. = 0.7 and rated supply voltage – 8VA.
4. The current consumed by the converter at a supply voltage of 22V and a given power of 8VA is no more than 0.75A.
5. Weight 0.9 kg;
6. Dimensions: 200x88x67 mm.

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