ARCO 400: New Version with Focus on DER Protection Testing

November 13, 2025

We’re happy to announce the release of ARCO Control version 1.60 and ReCoPlan version 2.60. The new versions add advanced features for DER protection testing, smart reporting options, and more flexibility in test plan setup. These enhancements support professionals working with modern grid systems.

Made for Anti-Islanding Protection testing

The Pick-Up test tool now includes modes for anti-islanding protection testing:

  • Voltage stage 2 and Frequency stage 2 allow testing of stage 2 protection functions using a pulse ramp method, avoiding stage 1 activation.
  • Vector shift and RoCoF modes enable testing of voltage phase angle shifts and rate-of-change-of-frequency protection.
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Extended timer support and prefault settings make it easier to meet the requirements of solar sites with long trip durations.

Smarter Reporting with Customizable PDF Export

Reports can now be saved directly in PDF format, with options to include detailed event logs and timing diagrams. Users can choose between A4 and Letter page formats, making it easier to share and archive test results professionally.

Flexible Test Plan Configuration

Voltage correction factors and phase connections can now be adjusted directly within individual test plans*. This enables quick adaptation to different system conditions without creating separate plans, streamlining workflows and improving scalability.

* Note: VT and CT ratios remain fixed in this mode.

More information and Download

Please find detailed information about the latest software version in the “What’s New ### kB” document.

You can download the new software version in our Customer Portal.

GET NEW VERSION NOW

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