HP / Agilent 6812B Performance AC Power Source, 750 VA, 300 V, 6.5 A

The HP/Agilent 6812B is a 750 VA AC power source combining power amplification, arbitrary waveform generation, and integrated power analysis in a single instrument. It delivers up to 300 V RMS and 6.5 A RMS, with peak current capability of 40 A and a crest factor of 6. The unit generates sine, square, clipped sine, and user-definable waveforms across DC and 45 Hz to 1 kHz, supporting both AC and DC power delivery at ±425 V and 575 W respectively. Built-in 16-bit measurement capabilities provide RMS, DC, and AC + DC voltage and current; peak measurements; real, apparent, and reactive power; total harmonic distortion; and harmonic analysis to the 50th harmonic with amplitude and phase data. Maximum THD is 0.25% at 50/60 Hz with 1% worst case across the operating frequency range.

– Technical Specifications

• Output: 750 VA, 300 V RMS, 6.5 A RMS
• Peak Current: 40 A repetitive and non-repetitive; 6 crest factor
• Frequency Range: DC; 45 Hz to 1 kHz
• DC Output: 575 W at ±425 V, 5.0 A
• RMS Voltage Accuracy (45–100 Hz): 0.03% + 100 mV or 0.15% + 0.3 V
• DC Voltage Accuracy: 0.05% + 150 mV or 0.1% + 0.5 V
• RMS Current Accuracy (45–100 Hz, high range): 0.05% + 10 mA
• Power Accuracy (45–100 Hz, high range): 0.1% + 1.5 VA + 12 mVA/V
• Frequency Accuracy: 0.01% + 0.01 Hz
• Power Factor Accuracy: 0.01
• Line Regulation: 0.1% of full scale
• Load Regulation: 0.5% of full scale
• Ripple and Noise (20 kHz to 10 MHz): –60 dB relative to full scale
• THD: 0.25% at 50/60 Hz; 1% worst case (45–1 kHz)
• Measurement Resolution: 16-bit
• Input: Universal 100–240 V, 1 phase AC
• Dimensions: 425.5 mm W × 88.1 mm H × 396 mm D

– Key Features

• Sine, square, clipped sine, and user-defined waveform synthesis
• Harmonic analysis up to the 50th harmonic with amplitude and phase
• Triggered acquisition of digitized voltage and current waveforms
• Line disturbance and brownout simulation capability

– Typical Applications

• Power supply and UPS testing
• Avionics ATE
• Power factor corrected equipment validation
• DC and AC power source efficiency testing
• Transformer safety and efficiency evaluation
• Sleep mode current monitoring

– Compatibility & Integration

• GPIB and RS-232 interfaces
• SCPI command language programming