ERACS 3.9.5 was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this software available.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The software is included in Home & Hobby Tools. The most frequent installer filename for the software is: ERACS.exe. The most popular versions of the ERACS 3.9, 3.8 and 3.7. The actual developer of the free program is ERA Technology Ltd.
From the developer:
ERACS is ERA Technology's suite of power systems analysis software. It allows network design and planning engineers to simulate electrical power system networks quickly and easily to judge their correct, safe and timely operation under user defined, and sometimes arduous, situations.
You may want to check out more software, such as Mycroft Everything I Own, which might be similar to ERACS.