The user can preset the starting phase angle when the output is activated. The AC source is loaded with a waveform for pre-compliance testing to the volts and interrupts standard EN 61000-4-11. Users can also create their own waveforms and load them into the unit via an SD card.

A host of measurement functions are available including true, apparent and reactive power along with average, effective and peak values for both voltage and current. The power factor and crest factor values are also displayed.

Should you require a three phase output, please see the separate EAC-3S product family.

For remote control and automated test systems isolated analogue and computer interfaces are available. Another useful method of control is the external oscillator input. This enables complex waves to be set up on a signal generator and essentially amplified through the EAC-S. 

An optional integrated SD card provides a convenient low cost method of recording and editing complex waveforms, using simple WAV or script files via a PC.

If your test requirement is short term, we have a 500VA EAC-S unit in our rental AC sources range.

As most households are based on a single phase supply, it is important that domestic appliances are tested under these conditions. The programmability of the EAC-S allows almost any domestic condition to be recreated. Real world load balancing grid processes, such as ripple control, can be superimposed onto existing waveforms.

An EAC-S system was used by Durham University for the characterisation of magnetic devices. The AC source allowed them to validate and understand the limitations of their numerical models, while ensuring confidence in a specific device design.

Another ETPS AC power supply was used by Loughborough University's Centre for Renewable Energy Systems Technology (CREST) was used in a research trial to identify whether the National Grid would have to maintain their obligated 1% frequency tolerance, or if this tolerance is now outdated.