Both devices, Keysight AC6918H and Keysight AC6918L, are three-phase AC power sources that provide up to 320 V RMS output voltage and 18 kVA power. The main difference between the models lies in their frequency capabilities:

• Keysight AC6918H: supports frequencies up to 5000 Hz, making it ideal for high-frequency applications.
• Keysight AC6918L: designed for frequencies up to 550 Hz, suitable for standard tasks.
  
  

Main Specifications

• Operating Modes: AC, DC, or AC+DC.
• Connection Types: single-phase, single-phase with three wires, three-phase with four wires.
• Maximum DC Voltage: up to 452 V.
• Interfaces: LAN (LXI Core), USB, optional GPIB.
  
  

Key Features

• Built-in tools for power network disturbance simulation.
• Harmonic analysis.
• Custom waveform generation.
• Protection against overcurrent, overvoltage, and overheating.
• Smooth start and stop functionality to prevent voltage spikes.
  
  

Applications

• Keysight AC6918H: designed for high-frequency testing, such as aviation electronics or other equipment operating at frequencies above standard.
• Keysight AC6918L: used for standard tasks, including consumer electronics and electromechanical equipment testing.
  
  

Selection Recommendations

The choice between Keysight AC6918H and Keysight AC6918L should be based on the frequency requirements of your testing applications. If testing devices at frequencies above 550 Hz is required, Keysight AC6918H is the optimal choice. For standard applications with frequencies up to 550 Hz, Keysight AC6918L is suitable.