The KGS Electronics SPC-6-1000-3PH is a solid-state frequency changer that converts single-phase 115 VAC, 50/60 Hz input into three-phase 400 Hz sine wave output for avionic test bench applications. This unit delivers stable three-phase power to equipment such as radars, compasses, gyros, and synchros that demand precision 400 Hz excitation.
## Technical Specifications
**Input Power**
• Voltage: 115 VAC ± 15 VAC
• Frequency: 50/60 Hz, single-phase
• Overvoltage protection: Automatic shutdown above 135 VAC
• Overcurrent protection: 20 Amp circuit breaker (input power on/off switch)
**Output Power**
• Frequency: 400 Hz (adjustable 380 to 420 Hz)
• Three-phase sine wave output
• Voltage selections:
– 115/200 VAC line-to-line (173 to 216 VAC adjustable)
– 115/200 VAC line-to-neutral (100 to 125 VAC adjustable)
– 26/45 VAC line-to-line (39.1 to 48.8 VAC adjustable)
– 26/45 VAC line-to-neutral (22.6 to 28.2 VAC adjustable)
• Total output power: 1000 VA at 115 VAC (330 VA per phase); 225 VA at 26 VAC (75 VA per phase)
• Waveform distortion: 2% THD typical
• Power factor: 0.8 to −0.95
**Protection & Overload**
• Delivers 150% overload for minimum 5 minutes
• Withstands short circuits for minimum 1 minute
• Shutdown thresholds: Below 375 Hz (under frequency), above 425 Hz (over frequency), above 130 VAC (over voltage)
**Physical & Environmental**
• Operating temperature: −40°C to +71°C
• Thermostatically controlled internal fan cooling
• Dimensions (19″ relay rack mount): 17″W × 13″D × 7″H
• Weight: 35 lbs
• Front panel connector: MS3106A24-11P
• Rear panel: 6-32 terminal block
## Key Features
• Adjustable frequency and voltage output
• Compact rack-mount form factor
• Wide operating temperature range
• Short-circuit and overload rated
• Low harmonic distortion (2% THD)
## Typical Applications
Test bench verification of three-phase avionic systems including navigation compasses, heading gyroscopes, synchro equipment, and radar platforms requiring stable 400 Hz excitation.
## Compatibility & Integration
Alternative models SPC-6-1000-3PH-230 and SPC-6-1000-3PHC support 230 VAC, 50 Hz input operation.
