The Keysight AC6903H is a three-phase AC power source and integrated power analyzer delivering 3 kVA of precise, stable power for electronic device and system testing. It combines AC, DC, and AC plus DC output modes in a single unit, with built-in multimeter, harmonic analyzer, and power analyzer functions. The instrument generates custom AC waveforms and simulates power line disturbances—outages, surges, and sags—making it ideal for avionics and specialty applications requiring compliance with RTCA DO-160 and MIL-STD-704 standards.
Technical Specifications
Output Capabilities
• Power capacity: 3 kVA total
• Output modes: AC, DC, or AC plus DC
• AC voltage (RMS): 1–160 V (Low range), 2–320 V (High range)
• DC voltage: 1.4–226 VDC (Low range), 2.8–452 VDC (High range)
• Peak voltage: ±227.5 V (Low range) or ±455 V (High range)
• Frequency: DC to 5 kHz; 50/60 Hz input
• Current (RMS): 30 A / 15 A (single-phase/three-wire), 10 A / 5 A (three-phase four-wire)
• Current limiting: Instantaneous peak limiting; maximum limit based on RMS value
• Line regulation: ±0.1%
• Load regulation: ±0.1–0.2 V (≤100 Hz), ±0.3–0.6 V (≤500 Hz), ±1–2 V (≤1 kHz)
• Temperature coefficient: 100 ppm/℃
Measurement Functions
• Voltage & current: AC, DC, AC plus DC, peak values
• Power: Real, apparent, and reactive
• Power factor and crest factor
• Harmonic analysis: Voltage and current harmonics up to 50th order with amplitude and phase
• Total harmonic distortion (THD)
– Key Features
• Single-phase, single-phase three-wire, and three-phase four-wire configurations
• Power line disturbance simulation for environmental testing
• Output sequencing for protocol-specific test execution
• Waveform generation with harmonic synthesis
• Transient response compensation (FAST or MID modes)
– Typical Applications
Avionics equipment testing, power supply validation, environmental stress screening, and compliance verification against aerospace standards.
– Compatibility & Integration
Supports standard three-phase and single-phase connections; operates from 50/60 Hz mains input.
