The SC50 is a lightweight, static inverter that utilizes the latest state of the art, solid state circuitry to invert a 28 VDC input to a 115 VAC, 400 Hz sine wave output.
Design features include a crystal controlled oscillator for output frequency stability and a pulse-width-modulated square to sine wave power conversion scheme for efficient and reliable operation.
The SC50 is primarily designed to power airborne and ground instruments, compasses, gyros, radars and navigation equipment.
Model SC50
Specifications:
Input Voltage:
28 VDC. (nominal). 20 VDC to 36.5 VDC range.
Input Current:
20.7 ADC at full load. 0.5 ADC at no load.
Output Voltage:
#1
#2
+5%, -7% (±2% typ. on 115 V).
115 VAC
26 VAC
Output Power:
115Vac
26Vac
500 VA total of 115 V & 26 V.
500 VA
100 VA
Output Frequency:
400 Hz ± 1.0 Hz.
Phase & Waveform:
Single phase & sinusoidal.
Harmonic Distortion:
0.7% (nominal), 3% max.
Power Factor:
+.8 to -.8
Efficiency:
87% (nominal).
Regulation:
1% Line, 1% Load, 2.5% Temp.
Weight:
4.9 lb. (2.22 kg)
Response Time:
300 Usec (NL to FL)
Overload Capacity:
110% of rated output power for 2 hrs 150% of rated output power for 5 min
Protection Circuits:
The inverter will shutdown under the following conditions:
