Agilent/Keysight AC6918L

The Keysight AC6918L is an 18 kVA three-phase AC power source engineered for demanding avionics and specialty testing applications. This instrument integrates power generation with built-in measurement and analysis capabilities - functioning simultaneously as a multimeter, harmonic analyzer, and power analyzer. It operates in AC, DC, and AC plus DC modes across single-phase, single-phase three-wire, and three-phase four-wire configurations, delivering up to 320 Vrms AC and 452 V DC with per-phase currents reaching 180 A in low-voltage single-phase mode.

The AC6918L generates arbitrary waveforms, simulates power line disturbances, and captures precision measurements including voltage, current, power (real, apparent, reactive), crest factor, power factor, and harmonic content to the 50th harmonic with amplitude and phase data. Its 5-inch color LCD displays all three-phase measurements simultaneously. Frequency capability extends to 550 Hz, supporting both 50 Hz and 60 Hz input references.

Technical Specifications

• Power Capacity: 18 kVA (single-phase or three-phase)


• AC Output: 0–320 Vrms; 180 A / 90 A (1P); 60 A / 30 A (1P3W or 3P); up to 180 A single-phase at low voltage range


• DC Output: 0–452 V


• Frequency Range: Up to 550 Hz; 50/60 Hz input


• Measurement Suite: AC/DC voltage and current; peak values; real, apparent, and reactive power; crest factor; power factor; harmonic analysis (amplitude and phase to 50th harmonic); total harmonic distortion (THD)


• Output Modes: Programmable waveform generation; power line disturbance simulation; output sequencing; soft start/stop; output disconnect relays


• Protection: Over/undervoltage; overcurrent; over-temperature; output inhibit programming


• Display: 5-inch LCD color; simultaneous three-phase measurements


• Connectivity: LXI (Core) LAN; USB; optional GPIB and analog control; digital control standard


• Operation: Single-phase, single-phase three-wire, or three-phase four-wire; parallel operation supported